DHCP error while provisioning host from Satellite server Error ERF12-6899 [ProxyAPI::ProxyException]: Unable to set DHCP entry [RestClient::ResourceNotFound] 404 Resource Not Found

Solution Verified - Updated

Environment

  • Red Hat Satellite 6.x

Issue

  • Error while creating a DHCP setting for host provision using Red Hat Satellite Server.

  • Create DHCP Settings for host.example.com task failed with the following error:

 ERF12-6899 [ProxyAPI::ProxyException]: Unable to set DHCP entry 
        ([RestClient::ResourceNotFound]: 404 Resource Not Found) for Capsule https://satellite.example.com:9090/dhcp

Resolution

  • Check the permissions of below-listed files and ensure permissions are correct.

  • Check whether umask value was changed which will cause the change in permissions of /var/lib/dhcpd/dhcpd.leases file.

      # ls -ltr /etc/dhcp/dhcpd.conf
  # ls -ltrd /etc/dhcp
  # chmod 755 /etc/dhcp
  # ls -ltr /var/lib/dhcpd/dhcpd.leases
  # ls -ldtr /var/lib/dhcpd/
  # chmod 755 /var/lib/dhcpd/dhcpd.leases

  • After changing the required permissions , Restart the service:

      # foreman-maintain service restart

  • Check if the subnet defined in the Red Hat Satellite Server (by examining the output of the hammer subnet list command) is also defined in the /etc/dhcpd.conf

For more KB articles/solutions related to Red Hat Satellite 6.x Provisioning Issues, please refer to the Consolidated Troubleshooting Article for Red Hat Satellite 6.x Provisioning related Issues

Root Cause

  • Permissions for dhcpd directory were incorrect.

      # ls -ld /etc/dhcp
  drwxr-x---. 3 root root 1096 Mar  1 16:39 /etc/dhcp
  # ls  -ltr /var/lib/dhcpd/dhcpd.leases
  drwxr-----. 3 root root 3096 Mar  1 16:39 /var/lib/dhcpd/dhcpd.leases

  • The permissions should be dhcpd:dhcpd for all the files.

Diagnostic Steps

  • While checking /var/log/foreman-proxy/proxy.log see the below error.

      ERROR -- : Couldn't enable plugin dhcp_isc: File at '/etc/dhcp/dhcpd.conf' defined in 'config' parameter doesn't exist or is unreadable
  ERROR -- : Couldn't enable plugin dhcp: Dependency 'dhcp_isc' of 'dhcp' has not been enabled.

  • Verify DHCP feature is listed under WebUI --> Infrastructue --> Capsules --> Features.

      # hammer capsule info --id <satellite/capsule id>
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