Web console

OpenShift Container Platform 4.2

Getting started with the web console in OpenShift Container Platform 4.2

Red Hat OpenShift Documentation Team

Abstract

This document provides instructions for accessing and customizing the OpenShift Container Platform 4.2 web console.

Chapter 1. Accessing the web console

The OpenShift Container Platform web console is a user interface accessible from a web browser. Developers can use the web console to visualize, browse, and manage the contents of projects.

Prerequisites

1.1. Understanding and accessing the web console

The web console runs as a pod on the master. The static assets required to run the web console are served by the pod. Once OpenShift Container Platform is successfully installed, find the URL for the web console and login credentials for your installed cluster in the CLI output of the installation program. For example:

INFO Install complete!
INFO Run 'export KUBECONFIG=<your working directory>/auth/kubeconfig' to manage the cluster with 'oc', the OpenShift CLI.
INFO The cluster is ready when 'oc login -u kubeadmin -p <provided>' succeeds (wait a few minutes).
INFO Access the OpenShift web-console here: https://console-openshift-console.apps.demo1.openshift4-beta-abcorp.com
INFO Login to the console with user: kubeadmin, password: <provided>

Use those details to log in and access the web console.

Chapter 2. Using the OpenShift Container Platform dashboard to get cluster information

Access the OpenShift Container Platform dashboard, which captures high-level information about the cluster, by navigating to HomeDashboardsOverview from the OpenShift Container Platform web console.

The OpenShift Container Platform dashboard provides various cluster information, captured in individual dashboard cards.

2.1. About the OpenShift Container Platform dashboards page

The OpenShift Container Platform dashboard consists of the following cards:

  • Details provides a brief overview of informational cluster details.

    Status include ok, error, warning, in progress, and unknown. Resources can add custom status names.

    • Cluster ID
    • Provider
    • Version
  • Cluster Inventory details number of resources and associated statuses. It is helpful when intervention is required to resolve problems, including information about:

    • Number of nodes
    • Number of Pods
    • Persistent storage volume claims
    • Bare metal hosts in the cluster, listed according to their state (only available in metal3 environment).
  • Cluster Capacity charts help administrators understand when additional resources are required in the cluster. The charts contain an inner ring that displays current consumption, while an outer ring displays thresholds configured for the resource, including information about:

    • CPU time
    • Memory allocation
    • Storage consumed
    • Network resources consumed
  • Cluster Utilization shows the capacity of various resources over a specified period of time, to help administrators understand the scale and frequency of high resource consumption.
  • Events lists messages related to recent activity in the cluster, such as Pod creation or virtual machine migration to another host.
  • Top Consumers helps administrators understand how cluster resources are consumed. Click on a resource to jump to a detailed page listing Pods and nodes that consume the largest amount of the specified cluster resource (CPU, memory, or storage).

Chapter 3. Configuring the web console in OpenShift Container Platform

You can modify the OpenShift Container Platform web console to set a logout redirect URL or disable the console.

Prerequisites

  • Deploy an OpenShift Container Platform cluster.

3.1. Configuring the web console

You can configure the web console settings by editing the console.config.openshift.io resource.

  • Edit the console.config.openshift.io resource:

    $ oc edit console.config.openshift.io cluster

    The following example displays the sample resource definition for the console:

    apiVersion: config.openshift.io/v1
    kind: Console
    metadata:
      name: cluster
    spec:
      authentication:
        logoutRedirect: "" 1
    status:
      consoleURL: "" 2
    1
    Specify the URL of the page to load when a user logs out of the web console. If you do not specify a value, the user returns to the login page for the web console. Specifying a logoutRedirect URL allows your users to perform single logout (SLO) through the identity provider to destroy their single sign-on session.
    2
    The web console URL. You cannot modify this parameter value. If you do, the cluster resets it to the default value.

Chapter 4. Customizing the web console in OpenShift Container Platform

You can customize the OpenShift Container Platform web console to set a custom logo, product name, links, notifications, and command line downloads. This is especially helpful if you need to tailor the web console to meet specific corporate or government requirements.

4.1. Adding a custom logo and product name

You can create custom branding by adding a custom logo or custom product name. You can set both or one without the other, as these settings are independent of each other.

Prerequisites

  • Create a file of the logo that you want to use. The logo can be a file in any common image format, including GIF, JPG, PNG, or SVG, and is constrained to a max-height of 60px.

Procedure

  1. Import your logo file into a ConfigMap in the openshift-config namespace:

    $ oc create configmap console-custom-logo --from-file ~/path/to/console-custom-logo.png -n openshift-config
  2. Edit the web console’s Operator configuration to include customLogoFile and customProductName:

    $ oc apply -f <file>
    apiVersion: operator.openshift.io/v1
    kind: Console
    metadata:
       name: cluster
       spec:
          customization:
             customProductName: My Console
             customLogoFile:
                name: console-custom-logo
                key: console-custom-logo.png

    Once the Operator configuration is updated, it will sync the custom logo ConfigMap into the console namespace, mount it to the console pod, and redeploy.

  3. Check for success. If there are any issues, the console cluster operator will report Degraded, and the console Operator configuration will also report CustomLogoDegraded, but with reasons like KeyOrFilenameInvalid or NoImageProvided.

    To check the clusteroperator, run:

    $ oc get clusteroperator console -o yaml

    To check the console Operator configuration, run:

    $ oc get console.operator.openshift.io -o yaml

4.4. Creating custom notification banners

Procedure

  1. From AdministrationCustom Resource Definitions, click on ConsoleNotification.
  2. Click YAML and edit the file:

    apiVersion: console.openshift.io/v1
    kind: ConsoleNotification
    metadata:
      name: example
    spec:
      backgroundColor: '#0088ce'
      color: '#fff'
      link:
        href: 'https://www.example.com'
        text: Optional link text
      location: BannerTop 1
      text: This is an example notification message with an optional link.
    1
    Valid location settings are BannerTop, BannerBottom, and BannerTopBottom.
  3. Click the Save button to apply your changes.

4.5. Customizing CLI downloads

You can configure links for downloading the CLI with custom link text and URLs, which can point directly to file packages or to an external page that provides the packages.

Procedure

  1. Navigate to AdministrationCustom Resource Definitions.
  2. Select ConsoleCLIDownload from the list of Custom Resource Definitions (CRDs).
  3. Click the YAML tab, and then make your edits:

    apiVersion: console.openshift.io/v1
    kind: ConsoleCLIDownload
    metadata:
      name: example-cli-download-links-for-foo
    spec:
      description: |
        This is an example of download links for foo
      displayName: example-foo
      links:
      - href: 'https://www.example.com/public/foo.tar'
        text: foo for linux
      - href: 'https://www.example.com/public/foo.mac.zip'
        text: foo for mac
      - href: 'https://www.example.com/public/foo.win.zip'
        text: foo for windows
  4. Click the Save button.

Chapter 5. About the Developer perspective in the web console

The OpenShift Container Platform web console provides two perspectives; the Administrator perspective and the Developer perspective.

The Developer perspective provides workflows specific to developer use cases, such as the ability to:

  • Create and deploy applications on OpenShift Container Platform by importing existing codebases, images, and dockerfiles.
  • Visually interact with applications, components, and services associated with them within a project and monitor their deployment and build status.
  • Group components within an application and connect the components within and across applications.
  • Integrate serverless capabilities (Technology Preview).
  • Create workspaces to edit your application code using Eclipse Che.

Prerequisites

To access the Developer perspective, ensure that you have logged in to the web console.

5.1. Accessing Developer Perspective

The Developer perspective in the OpenShift Container Platform web console provides workflows specific to developer use cases.

You can access the Developer perspective from the web console as follows:

Procedure

  1. Log in to the OpenShift Container Platform web console using your login credentials. The default view for the OpenShift Container Platform web console is the Administrator perspective.
  2. Use the perspective switcher to switch to the Developer perspective. The Topology view with options to create an application is displayed.

    Developer Perspective

Chapter 6. Disabling the web console in OpenShift Container Platform

You can disable the OpenShift Container Platform web console.

Prerequisites

  • Deploy an OpenShift Container Platform cluster.

6.1. Disabling the web console

You can disable the web console by editing the console.operator.openshift.io resource.

  • Edit the console.operator.openshift.io resource:

    $ oc edit console.operator.openshift.io cluster

    The following example displays the parameters from this resource that you can modify:

    apiVersion: config.openshift.io/v1
    kind: Console
    metadata:
      name: cluster
    spec:
      managementState: Removed 1
    1
    Set the managementState parameter value to Removed to disable the web console. The other valid values for this parameter are Managed, which enables the console under the cluster’s control, and Unmanaged, which means that you are taking control of web console management.

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