Chapter 4. Using Infoblox as DHCP and DNS Providers

You can use Capsule Server to connect to your Infoblox application to create and manage DHCP and DNS records, and to reserve IP addresses.

The supported Infoblox version is NIOS 8.0 or higher.

4.1. Infoblox Limitations

All DHCP and DNS records can be managed only in a single Network or DNS view. After you install the Infoblox modules on Capsule and set up the view using the satellite-installer command, you cannot edit the view.

Capsule Server communicates with a single Infoblox node using the standard HTTPS web API. If you want to configure clustering and High Availability, make the configurations in Infoblox.

Hosting PXE-related files using Infoblox’s TFTP functionality is not supported. You must use Capsule as a TFTP server for PXE provisioning. For more information, see Chapter 3, Configuring Networking.

Satellite IPAM feature cannot be integrated with Infoblox.

4.2. Infoblox Prerequisites

  • You must have Infoblox account credentials to manage DHCP and DNS entries in Satellite.
  • Ensure that you have Infoblox administration roles with the names: DHCP Admin and DNS Admin.
  • The administration roles must have permissions or belong to an admin group that permits the accounts to perform tasks through the Infoblox API.

4.3. Installing the Infoblox CA Certificate on Capsule Server

You must install Infoblox HTTPS CA certificate on the base system for all Capsules that you want to integrate with Infoblox applications.

You can download the certificate from the Infoblox web UI, or you can use the following OpenSSL commands to download the certificate: 

# update-ca-trust enable
# openssl s_client -showcerts -connect infoblox.example.com:443 </dev/null | \
openssl x509 -text >/etc/pki/ca-trust/source/anchors/infoblox.crt
# update-ca-trust extract
  • The infoblox.example.com entry must match the host name for the Infoblox application in the X509 certificate.

To test the CA certificate, use a CURL query: 

# curl -u admin:password https://infoblox.example.com/wapi/v2.0/network

Example positive response: 

[
    {
        "_ref": "network/ZG5zLm5ldHdvcmskMTkyLjE2OC4yMDIuMC8yNC8w:infoblox.example.com/24/default",
        "network": "192.168.202.0/24",
        "network_view": "default"
    }
]

4.4. Installing the DHCP Infoblox module

Use this procedure to install the DHCP Infoblox module on Capsule. Note that you cannot manage records in separate views.

You can also install DHCP and DNS Infoblox modules simultaneously by combining this procedure and Section 4.5, “Installing the DNS Infoblox Module”.

DHCP Infoblox Record Type Considerations

If you want to use the DHCP and DNS Infoblox modules together, configure the DHCP Infoblox module with the fixedaddress record type only. The host record type causes DNS conflicts and is not supported.

If you configure the DHCP Infoblox module with the host record type, you have to unset both DNS Capsule and Reverse DNS Capsule options on your Infoblox-managed subnets, because Infoblox does DNS management by itself. Using the host record type leads to creating conflicts and being unable to rename hosts in Satellite.

Procedure

  1. On Capsule, enter the following command: 

    # satellite-installer --enable-foreman-proxy-plugin-dhcp-infoblox \
--foreman-proxy-dhcp true \
--foreman-proxy-dhcp-provider infoblox \
--foreman-proxy-dhcp-server infoblox.example.com \
--foreman-proxy-plugin-dhcp-infoblox-username admin \
--foreman-proxy-plugin-dhcp-infoblox-password infoblox \
--foreman-proxy-plugin-dhcp-infoblox-record-type fixedaddress \
--foreman-proxy-plugin-dhcp-infoblox-dns-view default \
--foreman-proxy-plugin-dhcp-infoblox-network-view default
  2. Optional: In the Satellite web UI, navigate to Infrastructure > Capsules, select the Capsule with the DHCP Infoblox module, and ensure that the dhcp feature is listed.
  3. In the Satellite web UI, navigate to Infrastructure > Subnets.
  4. For all subnets managed through Infoblox, ensure that the IP address management (IPAM) method of the subnet is set to DHCP.

4.5. Installing the DNS Infoblox Module

Use this procedure to install the DNS Infoblox module on Capsule. You can also install DHCP and DNS Infoblox modules simultaneously by combining this procedure and Section 4.4, “Installing the DHCP Infoblox module”.

Procedure

  1. On Capsule, enter the following command to configure the Infoblox module: 

    # satellite-installer --enable-foreman-proxy-plugin-dns-infoblox \
--foreman-proxy-dns true \
--foreman-proxy-dns-provider infoblox \
--foreman-proxy-plugin-dns-infoblox-dns-server infoblox.example.com \
--foreman-proxy-plugin-dns-infoblox-username admin \
--foreman-proxy-plugin-dns-infoblox-password infoblox \
--foreman-proxy-plugin-dns-infoblox-dns-view default

    Optionally, you can change the value of the --foreman-proxy-plugin-dns-infoblox-dns-view option to specify an Infoblox DNS view other than the default view.

  2. Optional: In the Satellite web UI, navigate to Infrastructure > Capsules, select the Capsule with the Infoblox DNS module, and ensure that the dns feature is listed.
  3. In the Satellite web UI, navigate to Infrastructure > Domains.
  4. For all domains managed through Infoblox, ensure that the DNS Proxy is set for those domains.
  5. In the Satellite web UI, navigate to Infrastructure > Subnets.
  6. For all subnets managed through Infoblox, ensure that the DNS Capsule and Reverse DNS Capsule are set for those subnets.