Chapter 2. Getting Started for administrators

If you are an OpenShift administrator, you can prepare an OpenShift cluster for Fuse on OpenShift deployments by:

  1. Configuring authentication with registry.redhat.io.
  2. Installing the Fuse on OpenShift images and templates.

2.1. Authenticating with registry.redhat.io for container images

Configure authentication with registry.redhat.io before you can deploy Fuse container images on OpenShift.

Prerequisites

  • Cluster administrator access to an OpenShift Container Platform cluster.
  • OpenShift oc client tool is installed. For more details, see the OpenShift CLI documentation.

Procedure

  1. Log into your OpenShift cluster as administrator:

    oc login --user system:admin --token=my-token --server=https://my-cluster.example.com:6443
  2. Open the project in which you want to deploy Fuse:

    oc project myproject
  3. Create a docker-registry secret using your Red Hat Customer Portal account, replacing PULL_SECRET_NAME with the secret to create:

    oc create secret docker-registry PULL_SECRET_NAME \
      --docker-server=registry.redhat.io \
      --docker-username=CUSTOMER_PORTAL_USERNAME \
      --docker-password=CUSTOMER_PORTAL_PASSWORD \
      --docker-email=EMAIL_ADDRESS

    You should see the following output:

    secret/PULL_SECRET_NAME created
    Important

    You must create this docker-registry secret in every OpenShift project namespace that will authenticate to registry.redhat.io.

  4. Link the secret to your service account to use the secret for pulling images. The following example uses the default service account:

    oc secrets link default PULL_SECRET_NAME --for=pull

    The service account name must match the name that the OpenShift pod uses.

  5. Link the secret to the builder service account to use the secret for pushing and pulling build images:

    oc secrets link builder PULL_SECRET_NAME --for=pull,mount
    Note

    If you do not want to use your Red Hat username and password to create the pull secret, you can create an authentication token using a registry service account.

Additional resources

For more details on authenticating with Red Hat for container images:

2.2. Installing Fuse imagestreams and templates on the OpenShift 4.x server

Note

In Fuse 7.10, installing the Fuse on OpenShift imagestreams and templates on IBM Power Systems, IBM Z, and LinuxONE is not supported. Only the components that can be installed with Fuse on OpenShift Operators are supported on IBM Power Systems, IBM Z, and LinuxONE.

Openshift Container Platform 4.x uses the Samples Operator, which operates in the OpenShift namespace, installs and updates the Red Hat Enterprise Linux (RHEL)-based OpenShift Container Platform imagestreams and templates. To install the Fuse on OpenShift imagestreams and templates:

  • Reconfigure the Samples Operator
  • Add Fuse imagestreams and templates to Skipped Imagestreams and Skipped Templates fields.

    • Skipped Imagestreams: Imagestreams that are in the Samples Operator’s inventory, but that the cluster administrator wants the Operator to ignore or not manage.
    • Skipped Templates: Templates that are in the Samples Operator’s inventory, but that the cluster administrator wants the Operator to ignore or not manage.

Prerequisites

Procedure

  1. Start the OpenShift 4 Server.
  2. Log in to the OpenShift Server as an administrator.

    oc login --user system:admin --token=my-token --server=https://my-cluster.example.com:6443
  3. Verify that you are using the project for which you created a docker-registry secret.

    oc project openshift
  4. View the current configuration of Samples operator.

    oc get configs.samples.operator.openshift.io -n openshift-cluster-samples-operator -o yaml
  5. Configure Samples operator to ignore the fuse templates and image streams that are added.

    oc edit configs.samples.operator.openshift.io -n openshift-cluster-samples-operator
  6. Add the Fuse imagestreams Skipped Imagestreams section and add Fuse and Spring Boot 2 templates to Skipped Templates section.

    [...]
    spec:
      architectures:
      - x86_64
      managementState: Managed
      skippedImagestreams:
      - fuse-console-rhel8
      - fuse-eap-openshift-jdk8-rhel7
      - fuse-eap-openshift-jdk11-rhel8
      - fuse-java-openshift-rhel8
      - fuse-java-openshift-jdk11-rhel8
      - fuse-karaf-openshift-rhel8
      - fuse-karaf-openshift-jdk11-rhel8
      - fuse-apicurito-generator-rhel8
      - fuse-apicurito-rhel8
      skippedTemplates:
      - s2i-fuse710-eap-camel-amq
      - s2i-fuse710-eap-camel-cdi
      - s2i-fuse710-eap-camel-cxf-jaxrs
      - s2i-fuse710-eap-camel-cxf-jaxws
      - s2i-fuse710-karaf-camel-amq
      - s2i-fuse710-karaf-camel-log
      - s2i-fuse710-karaf-camel-rest-sql
      - s2i-fuse710-karaf-cxf-rest
      - s2i-fuse710-spring-boot-2-camel-amq
      - s2i-fuse710-spring-boot-2-camel-config
      - s2i-fuse710-spring-boot-2-camel-drools
      - s2i-fuse710-spring-boot-2-camel-infinispan
      - s2i-fuse710-spring-boot-2-camel-rest-3scale
      - s2i-fuse710-spring-boot-2-camel-rest-sql
      - s2i-fuse710-spring-boot-2-camel
      - s2i-fuse710-spring-boot-2-camel-xa
      - s2i-fuse710-spring-boot-2-camel-xml
      - s2i-fuse710-spring-boot-2-cxf-jaxrs
      - s2i-fuse710-spring-boot-2-cxf-jaxws
      - s2i-fuse710-spring-boot-2-cxf-jaxrs-xml
      - s2i-fuse710-spring-boot-2-cxf-jaxws-xml
  7. Install the Fuse on OpenShift image streams:

    1. Set the BASEURL variable to the location of the image streams:

      For Fuse 7.10.1

      BASEURL=https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_1-00010-redhat-00001

      For Fuse 7.10.0

      BASEURL=https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_0-00015-redhat-00001
    2. Run the command that installs the image streams:

      oc create -n openshift -f ${BASEURL}/fis-image-streams.json
      Note

      If an error is displayed, with the message "Error from server (AlreadyExists): imagestreams.image.openshift.io <imagestreamname> already exists", use the following command to replace the existing imagestreams with the latest.

      oc replace --force -n openshift -f ${BASEURL}/fis-image-streams.json
  8. Install Fuse on OpenShift quickstart templates:

    for template in eap-camel-amq-template.json \
     eap-camel-cdi-template.json \
     eap-camel-cxf-jaxrs-template.json \
     eap-camel-cxf-jaxws-template.json \
     karaf-camel-amq-template.json \
     karaf-camel-log-template.json \
     karaf-camel-rest-sql-template.json \
     karaf-cxf-rest-template.json ;
     do
     oc create -n openshift -f \
     https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_0-00015-redhat-00001/quickstarts/${template}
     done
  9. Install Spring Boot 2 quickstart templates:

    for template in spring-boot-2-camel-amq-template.json \
     spring-boot-2-camel-config-template.json \
     spring-boot-2-camel-drools-template.json \
     spring-boot-2-camel-infinispan-template.json \
     spring-boot-2-camel-rest-3scale-template.json \
     spring-boot-2-camel-rest-sql-template.json \
     spring-boot-2-camel-template.json \
     spring-boot-2-camel-xa-template.json \
     spring-boot-2-camel-xml-template.json \
     spring-boot-2-cxf-jaxrs-template.json \
     spring-boot-2-cxf-jaxws-template.json \
     spring-boot-2-cxf-jaxrs-xml-template.json \
     spring-boot-2-cxf-jaxws-xml-template.json ;
     do oc create -n openshift -f \
     https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_0-00015-redhat-00001/quickstarts/${template}
     done
  10. (Optional) View the installed Fuse on OpenShift templates:

    oc get template -n openshift

2.3. Installing API Designer on OpenShift 4.x

Red Hat Fuse on OpenShift provides API Designer, a web-based API designer tool that you can use to design REST APIs. The API Designer Operator simplifies the installation and upgrading of API Designer on OpenShift Container Platform 4.x.

As an OpenShift administrator, you install the API Designer Operator to an OpenShift project (namespace). When the Operator is installed, the Operator is running in the selected namespace. However, to make the API Designer available as a service, either you, as the OpenShift administrator, or a developer must create an instance of the API Designer. The API Designer service provides the URL to access the API Designer web console.

Prerequisites

  • You have administrator access to the OpenShift cluster.
  • You have configured authentication to registry.redhat.io.

Procedure

  1. Start the OpenShift 4.x Server.
  2. In a web browser, navigate to the OpenShift console in your browser. Log in to the console with your credentials.
  3. Click Operators and then click OperatorHub.
  4. In the search field, type API Designer.
  5. Click the Red Hat Integration - API Designer card. The Red Hat Integration - API Designer Operator install page opens.
  6. Click Install. The Install Operator page opens.

    1. For Update Channel, select fuse-console-7.10.x.
    2. For Installation mode, select a namespace (project) from the list of namespaces on the cluster.
    3. For the Approval Strategy, select Automatic or Manual to configure how OpenShift handles updates to the API Designer Operator.

      • If you select Automatic updates, when a new version of the API Designer Operator is available, the OpenShift Operator Lifecycle Manager (OLM) automatically upgrades the running instance of the API Designer without human intervention.
      • If you select Manual updates, when a newer version of an Operator is available, the OLM creates an update request. As a cluster administrator, you must then manually approve that update request to have the API Designer Operator updated to the new version.
  7. Click Install to make the API Designer Operator available to the specified namespace (project).
  8. To verify that the API Designer is installed in the project, click Operators and then click Installed Operators to see the Red Hat Integration - API Designer in the list.

Next Steps

After the API Designer Operator is installed, the API Designer must be added as a service to the OpenShift project by creating an instance of the API Designer. This task can be accomplished in two ways:

2.3.1. Adding API Designer as a service to an OpenShift 4.x project

After the API Designer operator is installed in an OpenShift 4.x project, you (or an OpenShift developer) can add it as a service to the OpenShift project. The API Designer service provides the URL that a developer uses to access the API Designer web console.

Note

See Designing APIs for the steps that an OpenShift developer follows to add API Designer as a service to an OpenShift 4.x project.

Prerequisites

  • You have administrator access to the OpenShift cluster.
  • The API Designer operator is installed into the current OpenShift project.

Procedure

  1. In the OpenShift web console, click Operators and then click Installed Operators.
  2. In the Name column, click Red Hat Integration - API Designer.
  3. Under Provided APIs, click Create instance.

    A default form with a minimal starting template for the API Designer instance opens. Accept the default values or, optionally, edit them.

  4. Click Create to create a new apicurito-service. OpenShift starts up the pods, services, and other components for the new API Designer service.
  5. To verify that the API Designer service is available:

    1. Click Operators and then click Installed Operators.
    2. In the Provided APIs column, click Apicurito CRD.

      On the Operator Details page, the apicurito-service is listed.

  6. To open the API Designer:

    1. Select Networking > Routes.
    2. Make sure that the correct project is selected.
    3. In the apicurito-service-ui row’s Location column, click the URL.

      The API Designer web console opens in a new browser tab.

2.3.2. Upgrading the API Designer on OpenShift 4.x

Red Hat OpenShift 4.x handles updates to operators, including the Red Hat Fuse operators. For more information see the Operators OpenShift documentation.

In turn, operator updates can trigger application upgrades. How an application upgrade occur differs according to how the application is configured.

For API Designer applications, when you upgrade the API Designer operator, OpenShift automatically also upgrades any API designer applications on the cluster.

Note

The normal operator upgrade process does not work when upgrading from API Designer 7.8 to API Designer 7.9. To upgrade the API Designer from Fuse 7.8 to Fuse 7.9, you must delete the 7.8 API Designer operator and then install the 7.9 API Designer operator.

2.3.3. Metering labels for API Designer

You can use the OpenShift Metering operator to analyze your installed API Designer operator, UI component, and code generator to determine whether you are in compliance with your Red Hat subscription. For more information on Metering, see the OpenShift documentation.

The following table lists the metering labels for the API Designer.

Table 2.1. API Designer Metering Labels

LabelPossible values

com.company

Red_Hat

rht.prod_name

Red_Hat_Integration

rht.prod_ver

7.10

rht.comp

Fuse

rht.comp_ver

7.10

rht.subcomp

fuse-apicurito

apicurito-service-ui

apicurito-service-generator

rht.subcomp_t

infrastructure

Examples

  • Example for the API Designer operator:

    apicurito-operator
    com.company: Red_Hat
    rht.prod_name: Red_Hat_Integration
    rht.prod_ver: 7.10
    rht.comp: Fuse
    rht.comp_ver: 7.10
    rht.subcomp: fuse-apicurito
    rht.subcomp_t: infrastructure
  • Example for the API Designer UI component:

    com.company: Red_Hat
    rht.prod_name: Red_Hat_Integration
    rht.prod_ver: 7.10
    rht.comp: Fuse
    rht.comp_ver: 7.10
    rht.subcomp: apicurito-service-ui
    rht.subcomp_t: infrastructure
  • Example for the API Designer Generator component:

    com.company: Red_Hat
    rht.prod_name: Red_Hat_Integration
    rht.prod_ver: 7.10
    rht.comp: Fuse
    rht.comp_ver: 7.10
    rht.subcomp: apicurito-service-generator
    rht.subcomp_t: infrastructure

2.3.4. Considerations for installing API Designer in a restricted environment

The OpenShift clusters that are installed in a restricted environment, by default cannot access the Red Hat-provided OperatorHub sources because those remote sources require full Internet connectivity. In such environment, to install API designer operator, you must complete following prerequisites:

  • Disable the default remote OperatorHub sources for Operator Lifecycle Manager (OLM).
  • Use a workstation with full Internet access to create local mirrors of the OperatorHub content.
  • Configure OLM to install and manage Operators from the local sources instead of the default remote sources.

For more information refer Using Operator Lifecycle Manager on restricted networks section in the OpenShift documentation. Once you have created local mirrors of the OperatorHub, you can perform next steps.

2.4. Setting up the Fuse Console on OpenShift 4.x

On OpenShift 4.x, setting up the Fuse Console involves installing and deploying it. You have these options for installing and deploying the Fuse Console:

Optionally, you can customize role-based access control (RBAC) for the Fuse Console as described in Section 2.4.3, “Role-based access control for the Fuse Console on OpenShift 4.x”.

2.4.1. Installing and deploying the Fuse Console on OpenShift 4.x by using the OperatorHub

To install the Fuse Console on OpenShift 4.x, you can use the Fuse Console Operator provided in the OpenShift OperatorHub. To deploy the Fuse Console, you create an instance of the installed operator.

Prerequisites

Role-based access control for the Fuse Console on OpenShift 4.x

Procedure

To install and deploy the Fuse Console:

  1. Log in to the OpenShift console in your web browser as a user with cluster admin access.
  2. Click Operators and then click OperatorHub.
  3. In the search field window, type Fuse Console to filter the list of operators.
  4. Click Fuse Console Operator.
  5. In the Fuse Console Operator install window, click Install.

    The Create Operator Subscription form opens.

    • For Update Channel, select 7.10.x.
    • For Installation Mode, accept the default (a specific namespace on the cluster).

      Note that after you install the operator, when you deploy the Fuse Console, you can choose to monitor applications in all namespaces on the cluster or to monitor applications only in the namespace in which the Fuse Console operator is installed.

    • For Installed Namespace, select the namespace in which you want to install the Fuse Console Operator.
    • For the Update Approval, you can select Automatic or Manual to configure how OpenShift handles updates to the Fuse Console Operator.

      • If you select Automatic updates, when a new version of the Fuse Console Operator is available, the OpenShift Operator Lifecycle Manager (OLM) automatically upgrades the running instance of the Fuse Console without human intervention.
      • If you select Manual updates, when a newer version of an Operator is available, the OLM creates an update request. As a cluster administrator, you must then manually approve that update request to have the Fuse Console Operator updated to the new version.
  6. Click Install.

    OpenShift installs the Fuse Console Operator in the current namespace.

  7. To verify the installation, click Operators and then click Installed Operators. You can see the Fuse Console in the list of operators.
  8. To deploy the Fuse Console by using the OpenShift web console:

    1. In the list of Installed Operators, under the Name column, click Fuse Console.
    2. On the Operator Details page under Provided APIs, click Create Instance.

      Accept the configuration default values or optionally edit them.

      For Replicas, if you want to increase the Fuse Console performance (for example, in a high availability environment), you can increase the number of pods allocated to the Fuse Console.

      For Rbac (role-based access control), only specify a value in the config Map field if you want to customize the default RBAC behavior and if the ConfigMap file already exists in the namespace in which you installed the Fuse Console Operator. For more information about RBAC, see Role-based access control for the Fuse Console on OpenShift 4.x.

      For Nginx, see Performance tuning for Fuse Console Operator installation.

    3. Click Create.

      The Fuse Console Operator Details page opens and shows the status of the deployment.

  9. To open the Fuse Console:

    1. For a namespace deployment: In the OpenShift web console, open the project in which you installed the Fuse Console operator, and then select Overview. In the Project Overview page, scroll down to the Launcher section and click the Fuse Console link.

      For a cluster deployment, in the OpenShift web console’s title bar, click the grid icon ( mf os grid icon ). In the popup menu, under Red Hat applications, click the Fuse Console URL link.

    2. Log into the Fuse Console.

      An Authorize Access page opens in the browser listing the required permissions.

    3. Click Allow selected permissions.

      The Fuse Console opens in the browser and shows the Fuse application pods that you have authorization to access.

  10. Click Connect for the application that you want to view.

    A new browser window opens showing the application in the Fuse Console.

2.4.2. Installing and deploying the Fuse Console on OpenShift 4.x by using the command line

On OpenShift 4.x, you can choose one of these deployment options to install and deploy the Fuse Console from the command line:

  • cluster - The Fuse Console can discover and connect to Fuse applications deployed across multiple namespaces (projects) on the OpenShift cluster. To deploy this template, you must have the administrator role for the OpenShift cluster.
  • cluster with role-based access control - The cluster template with configurable role-based access control (RBAC). For more information, see Role-based access control for the Fuse Console on OpenShift 4.x.
  • namespace - The Fuse Console has access to a specific OpenShift project (namespace). To deploy this template, you must have the administrator role for the OpenShift project.
  • namespace with role-based access control - The namespace template with configurable RBAC. For more information, see Role-based access control for the Fuse Console on OpenShift 4.x.

To view a list of the parameters for the Fuse Console templates, run the following OpenShift command:

oc process --parameters -f https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_0-00015-redhat-00001/fuse-console-namespace-os4.json

Prerequisites

Procedure

  1. Verify that the Fuse Console image stream is installed by using the following command to retrieve a list of all templates:

    oc get template -n openshift
  2. Optionally, if you want to update the already installed image stream with new release tags, use the following command to import the Fuse Console image to the openshift namespace:

    oc import-image fuse7/fuse-console-rhel8:1.10 --from=registry.redhat.io/fuse7/fuse-console-rhel8:1.10 --confirm -n openshift
  3. Obtain the Fuse Console APP_NAME value by running the following command:

    oc process --parameters -f TEMPLATE-FILENAME

    where TEMPLATE-FILENAME is one of the following templates:

  4. From the certificate that you generated in Securing the Fuse Console on OpenShift 4.x, create the secret and mount it in the Fuse Console by using the following command (where APP_NAME is the name of the Fuse Console application).

    oc create secret tls APP_NAME-tls-proxying --cert server.crt --key server.key
  5. Create a new application based on your local copy of the Fuse Console template by running the following command (where myproject is the name of your OpenShift project, mytemp is the path to the local directory that contains the Fuse Console template, and myhost is the hostname to access the Fuse Console:

    • For the cluster template:

      oc new-app -n myproject -f {templates-base-url}/fuse-console-cluster-os4.json  -p ROUTE_HOSTNAME=myhost”
    • For the cluster with RBAC template:

      oc new-app -n myproject -f {templates-base-url}/fuse-console-cluster-rbac.yml -p ROUTE_HOSTNAME=myhost”
    • For the namespace template:

      {templates-base-url}/fuse-console-namespace-os4.json
    • For the namespace with RBAC template:

      oc new-app -n myproject -f {templates-base-url}/fuse-console-namespace-rbac.yml
  6. To configure the Fuse Console so that it can open the OpenShift Web console, set the OPENSHIFT_WEB_CONSOLE_URL environment variable by running the following command:

    oc set env dc/${APP_NAME} OPENSHIFT_WEB_CONSOLE_URL=`oc get -n openshift-config-managed cm console-public -o jsonpath={.data.consoleURL}`
  7. Obtain the status and the URL of your Fuse Console deployment by running this command:

    oc status
  8. To access the Fuse Console from a browser, use the URL that is returned in Step 7 (for example, https://fuse-console.192.168.64.12.nip.io).

2.4.2.1. Generating a certificate to secure the Fuse Console on OpenShift 4.x

On OpenShift 4.x, to keep the connection between the Fuse Console proxy and the Jolokia agent secure, a client certificate must be generated before the Fuse Console is deployed. The service signing certificate authority private key must be used to sign the client certificate.

You must follow this procedure only if you are installing and deploying the Fuse Console by using the command line. If you are using the Fuse Console Operator, it handles this task for you.

Important

You must generate and sign a separate client certificate for each OpenShift cluster. Do not use the same certificate for more than one cluster.

Prerequisites

  • You have cluster admin access to the OpenShift cluster.
  • If you are generating certificates for more than one OpenShift cluster and you previously generated a certificate for a different cluster in the current directory, do one of the following to ensure that you generate a different certificate for the current cluster:

    • Delete the existing certificate files (for example, ca.crt, ca.key, and ca.srl) from the current directory.
    • Change to a different working directory. For example, if your current working directory is named cluster1, create a new cluster2 directory and change your working directory to it:

      mkdir ../cluster2

      cd ../cluster2

Procedure

  1. Login to OpenShift as a user with cluster admin access:

    oc login -u <user_with_cluster_admin_role>
  2. Retrieve the service signing certificate authority keys, by executing the following commands:

    • To retrieve the certificate:

      oc get secrets/signing-key -n openshift-service-ca -o "jsonpath={.data['tls\.crt']}" | base64 --decode > ca.crt
    • To retrieve the private key:

      oc get secrets/signing-key -n openshift-service-ca -o "jsonpath={.data['tls\.key']}" | base64 --decode > ca.key
  3. Generate the client certificate, as documented in Kubernetes certificates administration, using either easyrsa, openssl, or cfssl.

    Here are the example commands using openssl:

    1. Generate the private key:

      openssl genrsa -out server.key 2048
    2. Write the CSR config file.

      cat <<EOT >> csr.conf
        [ req ]
        default_bits = 2048
        prompt = no
        default_md = sha256
        distinguished_name = dn
      
        [ dn ]
        CN = fuse-console.fuse.svc
      
        [ v3_ext ]
        authorityKeyIdentifier=keyid,issuer:always
        keyUsage=keyEncipherment,dataEncipherment,digitalSignature
        extendedKeyUsage=serverAuth,clientAuth
      EOT

      Here, the values in the CN parameter refers to the application name and the namespace that the application uses.

    3. Generate the CSR:

      openssl req -new -key server.key -out server.csr -config csr.conf
    4. Issue the signed certificate:

      openssl x509 -req -in server.csr -CA ca.crt -CAkey ca.key -CAcreateserial -out server.crt -days 10000 -extensions v3_ext -extfile csr.conf

Next steps

You need this certificate to create the secret for the Fuse Console as described in Installing and deploying the Fuse Console on OpenShift 4.x by using the command line.

2.4.3. Role-based access control for the Fuse Console on OpenShift 4.x

The Fuse Console offers role-based access control (RBAC) that infers access according to the user authorization provided by OpenShift. In the Fuse Console, RBAC determines a user’s ability to perform MBean operations on a pod.

For information on OpenShift authorization see the Using RBAC to define and apply permissions section of the OpenShift documentation.

Role-based access is enabled by default when you use the Operator to install the Fuse Console on OpenShift.

If you want to implement role-based access for the Fuse Console by installing it with a template, you must use one of the templates that are configurable with RBAC (fuse-console-cluster-rbac.yml or fuse-console-namespace-rbac.yml) to install the Fuse Console as described in Installing and deploying the Fuse Console on OpenShift 4.x by using the command line.

Fuse Console RBAC leverages the user’s verb access on a pod resource in OpenShift to determine the user’s access to a pod’s MBean operations in the Fuse Console. By default, there are two user roles for the Fuse Console:

  • admin

    If a user can update a pod in OpenShift, then the user is conferred the admin role for the Fuse Console. The user can perform write MBean operations in the Fuse Console for the pod.

  • viewer

    If a user can get a pod in OpenShift, then the user is conferred the viewer role for the Fuse Console. The user can perform read-only MBean operations in the Fuse Console for the pod.

Note

If you used a non-RBAC template to install the Fuse Console, only OpenShift users that are granted the update verb on the pod resource are authorized to perform the Fuse Console MBeans operations. Users that are granted the get verb on the pod resource can view the pod but they cannot perform any Fuse Console operations.

2.4.3.1. Determining access roles for the Fuse Console on OpenShift 4.x

The Fuse Console role-based access control is inferred from a user’s OpenShift permissions for a pod. To determine the Fuse Console access role granted to a particular user, obtain the OpenShift permissions granted to the user for a pod.

Prerequisites

  • You know the user’s name.
  • You know the pod’s name.

Procedure

  • To determine whether a user has the Fuse Console admin role for the pod, run the following command to see whether the user can update the pod on OpenShift:

    oc auth can-i update pods/<pod> --as <user>

    If the response is yes, the user has the Fuse Console admin role for the pod. The user can perform write MBean operations in the Fuse Console for the pod.

  • To determine whether a user has the Fuse Console viewer role for the pod, run the following command to see whether the user can get a pod on OpenShift:

    oc auth can-i get pods/<pod> --as <user>

    If the response is yes, the user has the Fuse Console viewer role for the pod. The user can perform read-only MBean operations in the Fuse Console for the pod. Depending on the context, the Fuse Console prevents the user with the viewer role from performing a write MBean operation, by disabling an option or by displaying an "operation not allowed for this user" message when the user attempts a write MBean operation.

    If the response is no, the user is not bound to any Fuse Console roles and the user cannot view the pod in the Fuse Console.

2.4.3.2. Customizing role-based access to the Fuse Console on OpenShift 4.x

If you use the OperatorHub to install the Fuse Console, role-based access control (RBAC) is enabled by default as described in Role-based access control for the Fuse Console on OpenShift 4.x. If you want to customize the Fuse Console RBAC behavior, before you deploy the Fuse Console, you must provide a ConfigMap file (that defines the custom RBAC behavior). You must place the custom ConfigMap file in the same namespace in which you installed the Fuse Console Operator.

If you use the command line templates to install the Fuse Console, the deployment-cluster-rbac.yml and deployment-namespace-rbac.yml templates create a ConfigMap that contains the configuration file (ACL.yml). The configuration file defines the roles allowed for MBean operations.

Prerequisite

  • You installed the Fuse Console by using the OperatorHub or by using one of the Fuse Console RBAC templates (deployment-cluster-rbac.yml or deployment-namespace-rbac.yml)

Procedure

To customize the Fuse Console RBAC roles:

  1. If you installed the Fuse Console by using the command line, the installation templates include a default ConfigMap file and so you can skip to the next step.

    If you installed the Fuse Console by using the OperatorHub, before you deploy the Fuse Console create a RBAC ConfigMap:

    1. Make sure the current OpenShift project is the project to which you want to install the Fuse Console. For example, if you want to install the Fuse Console in the fusetest project, run this command:

      oc project fusetest
    2. To create a Fuse Console RBAC ConfigMap file from a template, run this command:

      oc process -f https://raw.githubusercontent.com/jboss-fuse/application-templates/2.1.x.sb2.redhat-7-8-x/fuse-console-operator-rbac.yml -p APP_NAME=fuse-console | oc create -f -
  2. Open the ConfigMap in an editor by running the following command:

    oc edit cm $APP_NAME-rbac

    For example:

    oc edit cm fuse-console-rbac
  3. Edit the file.
  4. Save the file to apply the changes. OpenShift automatically restarts the Fuse Console pod.

2.4.3.3. Disabling role-based access control for the Fuse Console on OpenShift 4.x

If you installed the Fuse Console by using the command line and you specified one of the Fuse Console RBAC templates, the Fuse Console’s HAWTIO_ONLINE_RBAC_ACL environment variable passes the role-based access control (RBAC) ConfigMap configuration file path to the OpenShift server. If the HAWTIO_ONLINE_RBAC_ACL environment variable is not specified, RBAC support is disabled and only users that are granted the update verb on the pod resource (in OpenShift) are authorized to call MBeans operations on the pod in the Fuse Console.

Note that when you use the OperatorHub to install the Fuse Console. role-based access is enabled by default and the HAWTIO_ONLINE_RBAC_ACL environment variable does not apply.

Prerequisite

You installed the Fuse Console by using the command line and you specified one of the Fuse Console RBAC templates (deployment-cluster-rbac.yml or deployment-namespace-rbac.yml).

Procedure

To disable role-based access for the Fuse Console:

  1. In OpenShift, edit the Deployment Config resource for the Fuse Console.
  2. Delete the entire HAWTIO_ONLINE_RBAC_ACL environment variable definition.

    (Note that only clearing its value is not sufficient).

  3. Save the file to apply the changes. OpenShift automatically restarts the Fuse Console pod.

2.4.4. Upgrading the Fuse Console on OpenShift 4.x

Red Hat OpenShift 4.x handles updates to operators, including the Red Hat Fuse operators. For more information see the Operators OpenShift documentation.

In turn, operator updates can trigger application upgrades, depending on how the application is configured.

For Fuse Console applications, you can also trigger an upgrade to an application by editing the .spec.version field of the application custom resource definition.

Prerequisite

  • You have OpenShift cluster admin permissions.

Procedure

To upgrade a Fuse Console application:

  1. In a terminal window, use the following command to change the .spec.version field of the application custom resource definition:

    oc patch -n <project-name> <custom-resource-name> --type='merge' -p '{"spec":{"version":"1.7.1"}}'

    For example:

    oc patch -n myproject hawtio/example-fuseconsole --type='merge' -p '{"spec":{"version":"1.7.1"}}'
  2. Check that the application’s status has updated:

     oc get -n myproject hawtio/example-fuseconsole

    The response shows information about the application, including the version number:

    NAME                  AGE   URL                                        IMAGE
    example-fuseconsole   1m    https://fuseconsole.192.168.64.38.nip.io   docker.io/fuseconsole/online:1.7.1

    When you change the value of the .spec.version field, OpenShift automatically redeploys the application.

  3. To check the status of the redeployment that is triggered by the version change:

    oc rollout status deployment.v1.apps/example-fuseconsole

    A successful deployment shows this response:

    deployment "example-fuseconsole" successfully rolled out

2.4.5. Tuning the performance of the Fuse Console on OpenShift 4.x

By default, the Fuse Console uses the following Nginx settings:

  • clientBodyBufferSize: 256k
  • proxyBuffers: 16 128k
  • subrequestOutputBufferSize: 10m

Note: For descriptions of these settings, see the Nginx documentation: http://nginx.org/en/docs/dirindex.html

To tune performance of the Fuse Console, you can set any of the clientBodyBufferSize, proxyBuffers, and subrequestOutputBufferSize environment variables. For example, if you are using the Fuse Console to monitor numerous pods and routes (for instance, 100 routes in total), you can resolve a loading timeout issue by setting the Fuse Console’s subrequestOutputBufferSize environment variable to between 60m to 100m.

How you set these environment variables depends on how you installed the Fuse Console on Openshift 4.x:

  • By using the Fuse Console Operator
  • By using a Fuse Console template

2.4.5.1. Performance tuning for Fuse Console Operator installation

On Openshift 4.x, you can set the Nginx performance tuning environment variables before or after you deploy the Fuse Console. If you do so afterwards, OpenShift redeploys the Fuse Console.

Prerequisites

Procedure

You can set the environment variables before or after you deploy the Fuse Console.

  • To set the environment variables before you deploy the Fuse Console:

    1. In the OpenShift web console, in a project that has the Fuse Console Operator installed, select Operators> Installed Operators> Red Hat Integration - Fuse Console.
    2. Click the Hawtio tab, and then click Create Hawtio.
    3. On the Create Hawtio page, in the Form view, scroll down to the Config> Nginx section.
    4. Expand the Nginx section and then set the environment variables. For example:

      • clientBodyBufferSize: 256k
      • proxyBuffers: 16 128k
      • subrequestOutputBufferSize: 100m
    5. Save the configuration.
    6. Click Create to deploy the Fuse Console.
    7. After the deployment completes, open the Deployments> fuse-console page, and then click Environment to verify that the environment variables are in the list.
  • To set the environment variables after you deploy the Fuse Console:

    1. In the OpenShift web console, open the project in which the Fuse Console is deployed.
    2. Select Operators> Installed Operators> Red Hat Integration - Fuse Console.
    3. Click the Hawtio tab, and then click fuse-console.
    4. Select Actions> Edit Hawtio.
    5. In the Editor window, scroll down to the spec section.
    6. Under the spec section, add a new nginx section and specify one or more environment variables, for example:

      apiVersion: hawt.io/v1alpha1
      kind: Hawtio
      metadata:
        name: fuse-console
      spec:
        type: Namespace
        nginx:
          clientBodyBufferSize: 256k
          proxyBuffers: 16 128k
          subrequestOutputBufferSize: 100m
      .
      .
      .
    7. Click Save.

      OpenShift redeploys the Fuse Console.

    8. After the redeployment completes, open the Workloads> Deployments> fuse-console page, and then click Environment to see the environment variables in the list.

2.4.5.2. Performance tuning for Fuse Console template installation

On Openshift 4.x, you can set the Nginx performance tuning environment variables before or after you deploy the Fuse Console. If you do so afterwards, OpenShift redeploys the Fuse Console.

Prerequisites

Procedure

You can set the environment variables before or after you deploy the Fuse Console.

  • To set the environment variables before you deploy the Fuse Console:

    1. Determine which Fuse Console template that you want to use:

      • Cluster template (fuse-console-cluster-os4.json)
      • Cluster template with configurable RBAC (fuse-console-cluster-rbac.yml)
      • Namespace template (fuse-console-namespace-os4.json)
      • Namespace template with configurable RBAC (fuse-console-namespace-rbac.yml)
    2. Edit the local copy of the Fuse Console template that you want to use for the Fuse Console to include the NGINX_CLIENT_BODY_BUFFER_SIZE, NGINX_PROXY_BUFFERS, and/or NGINX_SUBREQUEST_OUTPUT_BUFFER_SIZE environment variables as shown in the following example:

      apiVersion: v1
      kind: DeploymentConfig
      metadata:
        name: fuse-console
      spec:
        template:
          spec:
            containers:
            - env:
              - name: NGINX_CLIENT_BODY_BUFFER_SIZE
                value: 256k
              - name: NGINX_PROXY_BUFFERS
                value: 16 128k
              - name: NGINX_SUBREQUEST_OUTPUT_BUFFER_SIZE
                value: 100m
    3. Save your changes.
    4. Follow the steps for installing and deploying the Fuse Console as as described in Setting up the Fuse Console on OpenShift 4.x.
  • To set the environment variables after you deploy the Fuse Console:

    1. In a Terminal window, login to the OpenShift cluster.
    2. Open the project in which the Fuse Console is deployed. For example, if the Fuse Console is deployed in the myfuse project, use the following command:

      oc project myfuse

    3. Obtain the name for the Fuse Console deployment:

      oc get deployments

      This command returns a list of the deployments running in the current project. For example:

      NAME                        READY   UP-TO-DATE   AVAILABLE    AGE
      fuse-console                1/1     1               1           114m
    4. Run one or more of the following commands to set the environment variables for the Fuse Console deployment:

      oc set env dc/fuse-console NGINX_CLIENT_BODY_BUFFER_SIZE="256k"
      
      oc set env dc/fuse-console NGINX_PROXY_BUFFERS="16 128k"
      
      oc set env dc/fuse-console NGINX_SUBREQUEST_OUTPUT_BUFFER_SIZE="10m"

      OpenShift redeploys the Fuse Console.

    5. After the redeployment completes, verify the environment variables settings:

      1. Obtain the Fuse Console pod name:

        oc get pods
      2. Run the following command to view the environment settings

        oc exec <fuse-console-podname> -- cat /opt/app-root/etc/nginx.d/nginx-gateway.conf | grep "Performance tuning" -A 3

        For example, if the pod name is fuse-console-6646cbbd4c-9rplg, run this command:

        oc exec fuse-console-6646cbbd4c-9rplg -- cat /opt/app-root/etc/nginx.d/nginx-gateway.conf | grep "Performance tuning" -A 3

2.5. Configuring Prometheus to monitor Fuse applications on OpenShift

2.5.1. About Prometheus

Prometheus is an open-source systems and service monitoring and alerting toolkit that you can use to monitor services deployed in your Red Hat OpenShift environment. Prometheus collects and stores metrics from configured services at given intervals, evaluates rule expressions, displays the results, and can trigger alerts if a specified condition becomes true.

Important

Red Hat support for Prometheus is limited to the setup and configuration recommendations provided in Red Hat product documentation.

To monitor OpenShift services, you must configure each service to expose an endpoint to Prometheus format. This endpoint is an HTTP interface that provides a list of metrics and the current values of the metrics. Prometheus periodically scrapes each target-defined endpoint and writes the collected data to its database. Prometheus gathers data over an extended time, rather than just for the currently running session. Prometheus stores the data so that you can graphically visualize and run queries on the data.

2.5.1.1. Prometheus queries

In the Prometheus web interface, you can write queries in Prometheus Query Language (PromQL) to select and aggregate the collected data.

For example, you can use the following query to select all of the values that Prometheus has recorded within the last five minutes for all time-series data that has http_requests_total as the metric name:

http_requests_total[5m]

To further define or filter the results of the query, specify a label (a key:value pair) for the metric. For example, you can use the following query to select all the values that Prometheus has recorded within the last five minutes for all time-series data that has the metric name http_requests_total and a job label set to integration:

http_requests_total{job="integration"}[5m]

2.5.1.2. Options for displaying Prometheus data

You can specify how Prometheus handles the result of a query:

  • View Prometheus data as tabular data in Prometheus’s expression browser.
  • Consume Prometheus data by external systems through the Prometheus HTTP API.
  • Display Prometheus data in a graph.

    Prometheus provides a default graphical view of the data that it collects. If you prefer a more robust graphical dashboard to view Prometheus data, Grafana is a popular choice.

    Note

    Grafana is a community-supported feature. Deploying Grafana to monitor Red Hat products is not supported with Red Hat production service level agreements (SLAs).

You can also use the PromQL language to configure alerts in Prometheus’s Alertmanager tool.

2.5.2. Setting up Prometheus

To set up Prometheus, install the Prometheus operator custom resource definition on the cluster and then add Prometheus to an OpenShift project that includes a Fuse application.

Prerequisites

  • You have cluster admin access to the OpenShift cluster.
  • You have prepared the OpenShift cluster by installing the Fuse on OpenShift images and templates as described in the Fuse on OpenShift Guide.
  • You have created an OpenShift project on the cluster and added a Fuse application to it.

Procedure

  1. Login to OpenShift with administrator permissions:

    oc login --user system:admin --token=my-token --server=https://my-cluster.example.com:6443
  2. Install the custom resource definitions necessary for running the Prometheus operator:

    oc create -f https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_0-00015-redhat-00001/openshift3/fuse-prometheus-crd.yml

    The Prometheus operator is now available to any namespace on the cluster.

  3. Install the Prometheus operator to your namespace by using the following command syntax:

    oc process -f https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_0-00015-redhat-00001/openshift3/fuse-prometheus-operator.yml -p NAMESPACE=<YOUR NAMESPACE> | oc create -f -

    For example, use this command for a project (namespace) named myproject:

    oc process -f https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_0-00015-redhat-00001/openshift3/fuse-prometheus-operator.yml -p NAMESPACE=myproject | oc create -f -
    Note

    The first time that you install the Prometheus operator into a namespace, it might take a few minutes for the Prometheus resource pods to start. Subsequently, if you install it to other namespaces on your cluster, the Prometheus resource pods start much faster.

  4. Instruct the Prometheus operator to monitor the Fuse application in the project by using the following command syntax::

    oc process -f https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_0-00015-redhat-00001/openshift3/fuse-servicemonitor.yml -p NAMESPACE=<YOUR NAMESPACE> -p FUSE_SERVICE_NAME=<YOUR FUSE SERVICE> | oc apply -f -

    For example, use this command for an OpenShift project (namespace) named myproject that includes a Fuse application named myfuseapp:

    oc process -f https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_0-00015-redhat-00001/openshift3/fuse-servicemonitor.yml -p NAMESPACE=myproject -p FUSE_SERVICE_NAME=myfuseapp | oc apply -f -
  5. To open the Prometheus dashboard:

    1. Login to the OpenShift console.
    2. Open the project to which you added Prometheus.
    3. In the left pane, select Applications -> Routes.

      prometheus route

    4. Click the Prometheus Hostname URL to open the Prometheus dashboard in a new browser tab or window.

      prometheus dashboard

    5. For information about getting started with Prometheus, go to: https://prometheus.io/docs/prometheus/latest/getting_started/

2.5.3. OpenShift environment variables

To configure your application’s Prometheus instance, you can set the OpenShift environment variables listed in Table 2.2, “Prometheus Environment Variables”.

Table 2.2. Prometheus Environment Variables

Environment VariableDescriptionDefault

AB_PROMETHEUS_HOST

The host address to bind.

0.0.0.0

AB_PROMETHEUS_OFF

If set, disables the activation of Prometheus (echoes an empty value).

Prometheus is enabled.

AB_PROMETHEUS_PORT

The Port to use.

9779

AB_JMX_EXPORTER_CONFIG

Uses the file (including path) as the Prometheus configuration file.

The /opt/prometheus/prometheus-config.yml file with Camel metrics.

AB_JMX_EXPORTER_OPTS

Additional options to append to the JMX exporter configuration.

Not applicable.

Additional resources

For information on setting environment variables for a pod, see the OpenShift Developer Guide (https://access.redhat.com/documentation/en-us/openshift_container_platform/3.11/html/developer_guide/).

2.5.4. Controlling the metrics that Prometheus monitors and collects

By default, Prometheus uses a configuration file ( https://raw.githubusercontent.com/jboss-fuse/application-templates/master/prometheus/prometheus-config.yml) that includes all possible metrics exposed by Camel.

If you have custom metrics within your application that you want Prometheus to monitor and collect (for example, the number of orders that your application processes), you can use your own configuration file. Note that the metrics that you can identify are limited to those supplied in JMX.

Procedure

To use a custom configuration file to expose JMX beans that are not covered by the default Prometheus configuration, follow these steps:

  1. Create a custom Prometheus configuration file. You can use the contents of the default file (prometheus-config.yml https://raw.githubusercontent.com/jboss-fuse/application-templates/master/prometheus/prometheus-config.yml) as a guide for the format.

    You can use any name for the custom configuration file, for example: my-prometheus-config.yml.

  2. Add your prometheus configuration file (for example, my-prometheus-config.yml) to your application’s src/main/jkube-includes directory.
  3. Create a src/main/jkube/deployment.xml file within your application and add an entry for the AB_JMX_EXPORTER_CONFIG environment variable with its value set to your configuration file. For example:

    spec:
      template:
        spec:
          containers:
            -
              resources:
                requests:
                  cpu: "0.2"
                limits:
                  cpu: "1.0"
              env:
              - name: SPRING_APPLICATION_JSON
                value: '{"server":{"tomcat":{"max-threads":1}}}'
              - name: AB_JMX_EXPORTER_CONFIG
                value: "my-prometheus-config.yml"

    This environment variable applies to your application at the pod level.

  4. Rebuild and deploy your application.

2.6. Using Metering for Fuse on OpenShift

You can use the Metering tool that is available on OCP 4 to generate metering reports from different data sources. As a cluster administrator, you can use metering to analyze what is happening in your cluster. You can either write your own, or use predefined SQL queries to define how you want to process data from the different data sources you have available. Using Prometheus as a default data source, you can generate reports on pods, namespaces, and most other Kubernetes resources. You must install and configure the Metering operator on OpenShift Container Platform 4.x first to use the Metering tool. For more information on Metering, see Metering.

Note

Metering for Fuse on OpenShift is not supported for IBM Power Systems and IBM Z.

2.6.1. Metering resources

Metering has many resources which can be used to manage the deployment and installation of metering, as well as the reporting functionality metering provides. Metering is managed using the following CustomResourceDefinitions (CRDs):

Table 2.3. Metering resources

NameDescription

MeteringConfig

Configures the metering stack for deployment. Contains customizations and configuration options to control each component that makes up the metering stack.

Reports

Controls what query to use, when, and how often the query should be run, and where to store the results.

ReportQueries

Contains the SQL queries used to perform analysis on the data contained within ReportDataSources.

ReportDataSources

Controls the data available to ReportQueries and Reports. Allows configuring access to different databases for use within metering.

2.6.2. Metering labels for Fuse on OpenShift

Table 2.4. Metering Labels

LabelPossible values

com.company

Red_Hat

rht.prod_name

Red_Hat_Integration

rht.prod_ver

7.10

rht.comp

Fuse

rht.comp_ver

7.10

rht.subcomp

fuse7-java-openshift

fuse7-eap-openshift

fuse7-karaf-openshift

rht.subcomp_t

infrastructure

2.7. Monitoring Fuse on OpenShift with custom Grafana dashboards

OpenShift Container Platform 4.6 provides monitoring dashboards that help you understand the state of cluster components and user-defined workloads.

Prerquisites

Custom Dashboards for Fuse on OpenShift

There are two custom dashboards that you can use for Fuse on OpenShift. To use these dashboards, you must have installed and configured Grafana and Prometheus on your cluster. There are two kinds of example dashboards provided for Fuse on OpenShift. You can import these dashboards from Fuse Grafana dashboards.

  • Fuse Pod / Instance Metrics Dashboard:

    This dashboard collects metrics from a single Fuse application pod / instance. You can import the dashboard using fuse-grafana-dashboard.yml. The table of panels for the Fuse Pod metrics dashboard on OpenShift includes:

    Table 2.5. Fuse Pod metrics dashboard

    TitleLegendQueryDescription

    Process Start Time

    -

    process_start_time_seconds{pod="$pod"}*1000

    Time when the process started

    Current Memory HEAP

    -

    sum(jvm_memory_bytes_used{pod="$pod", area="heap"})*100/sum(jvm_memory_bytes_max{pod="$pod", area="heap"})

    Memory currently being used by Fuse

    Memory Usage

    committed

    sum(jvm_memory_bytes_committed{pod="$pod"})

    Memory committed

     

    used

    sum(jvm_memory_bytes_used{pod="$pod"})

    Memory used

     

    max

    sum(jvm_memory_bytes_max{pod="$pod"})

    Maximum memory

    Threads

    current

    jvm_threads_current{pod="$pod"}

    Number of current threads

     

    daemon

    jvm_threads_daemon{pod="$pod"}

    Number of daemon threads

     

    peak

    jvm_threads_peak{pod="$pod"}

    Number of peak threads

    Camel Exchanges / 1m

    Exchanges Completed / 1m

    sum(increase(org_apache_camel_ExchangesCompleted{pod="$pod"}[1m]))

    Completed Camel exchanges per minute

     

    Exchanges Failed / 1m

    sum(increase(org_apache_camel_ExchangesFailed{pod="$pod"}[1m]))

    Failed Camel exchanges per minute

     

    Exchanges Total / 1m

    sum(increase(org_apache_camel_ExchangesTotal{pod="$pod"}[1m]))

    Total Camel exchanges per minute

     

    Exchanges Inflight

    sum(org_apache_camel_ExchangesInflight{pod="$pod"})

    Camel exchanges currently being processed

    Camel Processing Time

    Delta Processing Time

    sum(org_apache_camel_DeltaProcessingTime{pod="$pod"})

    Delta of Camel processing time

     

    Last Processing Time

    sum(org_apache_camel_LastProcessingTime{pod="$pod"})

    Last Camel processing time

     

    Max Processing Time

    sum(org_apache_camel_MaxProcessingTime{pod="$pod"})

    Maximum Camel processing time

     

    Min Processing Time

    sum(org_apache_camel_MinProcessingTime{pod="$pod"})

    Minimum Camel processing time

     

    Mean Processing Time

    sum(org_apache_camel_MeanProcessingTime{pod="$pod"})

    Mean Camel processing time

    Camel Service Durations

    Maximum Duration

    sum(org_apache_camel_MaxDuration{pod="$pod"})

    Maximum Camel service durations

     

    Minimum Duration

    sum(org_apache_camel_MinDuration{pod="$pod"})

    Minimum Camel service durations

     

    Mean Duration

    sum(org_apache_camel_MeanDuration{pod="$pod"})

    Mean Camel service durations

    Camel Failures & Redeliveries

    Redeliveries

    sum(org_apache_camel_Redeliveries{pod="$pod"})

    Number of redeliveries

     

    Last Processing Time

    sum(org_apache_camel_LastProcessingTime{pod="$pod"})

    Last Camel processing time

     

    External Redeliveries

    sum(org_apache_camel_ExternalRedeliveries{pod="$pod"})

    Number of external redeliveries

  • Fuse Camel Route Metrics Dashboard:

    This dashboard collects metrics from a single Camel route in a Fuse application. You can import the dashboard using fuse-grafana-dashboard-routes.yml. The table of panels for the Fuse Camel Route metrics dashboard on OpenShift includes:

    Table 2.6. Fuse Camel Route metrics dashboard

    TitleLegendQueryDescription

    Exchanges per second

    -

    rate(org_apache_camel_ExchangesTotal{route="\"$route\""}[5m])

    Total Camel exchanges per second

    Exchanges inflight

    -

    max(org_apache_camel_ExchangesInflight{route="\"$route\""})

    Number of Camel exchanges currently being processed

    Exchanges failure rate

    -

    sum(org_apache_camel_ExchangesFailed{route="\"$route\""}) / sum(org_apache_camel_ExchangesTotal{route="\"$route\""})

    Percentage of failed Camel exchanges

    Mean processing time

    -

    org_apache_camel_MeanProcessingTime{route="\"$route\""}

    Mean Camel processing time

    Exchanges per second

    Failed

    rate(org_apache_camel_ExchangesFailed{route="\"$route\""}[5m])

    Failed exchanges per second

     

    Completed

    rate(org_apache_camel_ExchangesCompleted{route="\"$route\""}[5m])

    Completed exchanges per second

    Exchanges inflight

    Exchanges inflight

    org_apache_camel_ExchangesInflight{route="\"$route\""}

    Camel exchanges currently being processed

    Processing time

    Max

    org_apache_camel_MaxProcessingTime{route="\"$route\""}

    Maximum Camel processing time

     

    Mean

    org_apache_camel_MeanProcessingTime{route="\"$route\""}

    Mean Camel processing time

     

    Min

    org_apache_camel_MinProcessingTime{route="\"$route\""}

    Minimum Camel processing time

    External Redeliveries per second

    -

    rate(org_apache_camel_ExternalRedeliveries{route="\"$route\""}[5m])

    External redeliveries per second

    Redeliveries per second

    -

    rate(org_apache_camel_Redeliveries{route="\"$route\""}[5m])

    Redeliveries per second

    Failures handled per second

    -

    rate(org_apache_camel_FailuresHandled{route="\"$route\""}[5m])

    Failures handled per second

2.8. Installing Fuse imagestreams and templates on the OpenShift 3.x server

After you configure authentication to registry.redhat.io, import and use the Red Hat Fuse on OpenShift image streams and templates.

Procedure

  1. Start the OpenShift Server.
  2. Log in to the OpenShift Server as an administrator.

    oc login -u system:admin
  3. Verify that you are using the project for which you created a docker-registry secret.

    oc project openshift
  4. Install the Fuse on OpenShift image streams.
  5. Install the Fuse on OpenShift image streams:

    1. Set the BASEURL variable to the location of the image streams:

      For Fuse 7.10.1

      BASEURL=https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_1-00010-redhat-00001

      For Fuse 7.10.0

      BASEURL=https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_0-00015-redhat-00001
    2. Run the command that installs the image streams:

      oc create -n openshift -f ${BASEURL}/fis-image-streams.json
  6. Install the quickstart templates:

    for template in eap-camel-amq-template.json \
     eap-camel-cdi-template.json \
     eap-camel-cxf-jaxrs-template.json \
     eap-camel-cxf-jaxws-template.json \
     karaf-camel-amq-template.json \
     karaf-camel-log-template.json \
     karaf-camel-rest-sql-template.json \
     karaf-cxf-rest-template.json ;
     do
     oc create -n openshift -f \
     https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_0-00015-redhat-00001/quickstarts/${template}
     done
  7. Install Spring Boot 2 quickstart templates:

    for template in spring-boot-2-camel-amq-template.json \
     spring-boot-2-camel-config-template.json \
     spring-boot-2-camel-drools-template.json \
     spring-boot-2-camel-infinispan-template.json \
     spring-boot-2-camel-rest-3scale-template.json \
     spring-boot-2-camel-rest-sql-template.json \
     spring-boot-2-camel-template.json \
     spring-boot-2-camel-xa-template.json \
     spring-boot-2-camel-xml-template.json \
     spring-boot-2-cxf-jaxrs-template.json \
     spring-boot-2-cxf-jaxws-template.json \
     spring-boot-2-cxf-jaxrs-xml-template.json \
     spring-boot-2-cxf-jaxws-xml-template.json ;
     do oc create -n openshift -f \
     https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_0-00015-redhat-00001/quickstarts/${template}
     done
  8. Install the templates for the Fuse Console.

    oc create -n openshift -f https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_0-00015-redhat-00001/fis-console-cluster-template.json
    oc create -n openshift -f https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_0-00015-redhat-00001/fis-console-namespace-template.json
    Note

    For information on deploying the Fuse Console, see Set up Fuse Console on OpenShift.

  9. Install the Apicurito template:

    oc create -n openshift -f ${BASEURL}/fuse-apicurito.yml
  10. (Optional) View the installed Fuse on OpenShift images and templates:

    oc get template -n openshift

2.8.1. Setting up the Fuse Console on OpenShift 3.11

On OpenShift 3.11, you can access the Fuse Console:

  • By adding the Fuse Console to an OpenShift project so that you can monitor all the running Fuse containers in the project.
  • By adding the Fuse Console to an OpenShift cluster so that you can monitor all the running Fuse containers in all projects on the cluster.
  • By opening it from a specific Fuse pod so that you can monitor that single running Fuse container.

You deploy the Fuse Console templates from the command line.

Note

To install Fuse Console on Minishift or CDK based enviroments, follow the steps explained in the KCS article below.

  • To install Fuse Console on Minishift or CDK based enviroments, see KCS 4998441.
  • If it is necessary to disable Jolokia authentication see the workaround described in KCS 3988671.

Prerequisite

  • Install the Fuse on OpenShift image streams and the templates for the Fuse Console as described in Fuse on OpenShift Guide.
Note
  • User management for the Fuse Console is handled by OpenShift.
  • Role-based access control (for users accessing the Fuse Console after it is deployed) is not yet available for Fuse on OpenShift 3.11.

Section 2.8.1.1, “Deploying the Fuse Console on OpenShift 3.11”

Section 2.8.1.2, “Monitoring a single Fuse pod from the Fuse Console on OpenShift 3.11”

2.8.1.1. Deploying the Fuse Console on OpenShift 3.11

Table 2.7, “Fuse Console templates” describes the OpenShift 3.11 templates that you can use to deploy the Fuse Console from the command line, depending on the type of Fuse application deployment.

Table 2.7. Fuse Console templates

TypeDescription

fis-console-cluster-template.json

The Fuse Console can discover and connect to Fuse applications deployed across multiple namespaces or projects. To deploy this template, you must have the OpenShift cluster-admin role.

fis-console-namespace-template.json

This template restricts the Fuse Console access to the current OpenShift project (namespace), and as such acts as a single tenant deployment. To deploy this template, you must have the admin role for the current OpenShift project.

Optionally, you can view a list of the parameters for all of the templates by running this command:

oc process --parameters -f https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_0-00015-redhat-00001/fis-console-namespace-template.json
Note

The Fuse Console templates configure end-to-end encryption by default so that your Fuse Console requests are secured end-to-end, from the browser to the in-cluster services.

Prerequisite

  • For cluster mode on OpenShift 3.11, you need the cluster admin role and the cluster mode template. Run the following command:

    oc adm policy add-cluster-role-to-user cluster-admin system:serviceaccount:openshift-infra:template-instance-controller

Procedure

To deploy the Fuse Console from the command line:

  1. Create a new application based on a Fuse Console template by running one of the following commands (where myproject is the name of your project):

    • For the Fuse Console cluster template, where myhost is the hostname to access the Fuse Console:

      oc new-app -n myproject -f https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_0-00015-redhat-00001/fis-console-cluster-template.json -p ROUTE_HOSTNAME=myhost
    • For the Fuse Console namespace template:

      oc new-app -n myproject -f https://raw.githubusercontent.com/jboss-fuse/application-templates/application-templates-2.1.0.fuse-sb2-7_10_0-00015-redhat-00001/fis-console-namespace-template.json
      Note

      You can omit the route_hostname parameter for the namespace template because OpenShift automatically generates one.

  2. Obtain the status and the URL of your Fuse Console deployment by running this command:

    oc status
  3. To access the Fuse Console from a browser, use the provided URL (for example, https://fuse-console.192.168.64.12.nip.io).

2.8.1.2. Monitoring a single Fuse pod from the Fuse Console on OpenShift 3.11

You can open the Fuse Console for a Fuse pod running on OpenShift 3.11.

Prerequisite

  • In order to configure OpenShift to display a link to Fuse Console in the pod view, the pod running a Fuse on OpenShift image must declare a TCP port within a name attribute set to jolokia:

    {
      "kind": "Pod",
      [...]
      "spec": {
        "containers": [
          {
            [...]
            "ports": [
              {
                "name": "jolokia",
                "containerPort": 8778,
                "protocol": "TCP"
              }

Procedure

  1. From the Applications → Pods view in your OpenShift project, click on the pod name to view the details of the running Fuse pod. On the right-hand side of this page, you see a summary of the container template:

    Container Template View

  2. From this view, click on the Open Java Console link to open the Fuse Console.

    Fuse Console view