Ansible modules for configuring pacemaker cluster on CentOS/RHEL 6/7/8 and Fedora 31/32/33/34/35 systems.

PCS versions supported:

• pcs-0.9
• pcs-0.10
• pcs-0.11 (initial support)

If you are looking for a role that will configure a basic pacemaker cluster on CentOS/RHEL 6/7/8 or Fedora 31/32/33/34/35 systems, then check out the ondrejhome.ha-cluster-pacemaker role that uses the pcs-modules-2.

Note that modules manipulating with cluster configuration such as pcs_resource, pcs_constraint_*, pcs_property, pcs_resource_defaults and pcs_stonith_level should be run only from one of the cluster nodes in cluster by using either run_once: True or delegate_to: options.

RHEL: It is expected that machines will already be registered and subscribed for access to 'High Availability' or 'Resilient storage' channels.

None. This role is intended to be included as dependency.

pcs_auth - (de)authorization of nodes in pacemaker cluster

pcs_resource - create/update/delete cluster resources in pacemaker cluster including stonith resources

pcs_constraint_location - create/delete cluster location constraints in pacemaker cluster

pcs_constraint_colocation - create/delete cluster colocation constraints in pacemaker cluster

pcs_constraint_order - create/delete cluster order constraints in pacemaker cluster

pcs_cluster - create/destroy pacemaker cluster, adds/removes nodes to/from existing clusters

pcs_property - set/unset pacemaker cluster properties

pcs_resource_defaults - set/unset resource defaults and resource operation defaults

pcs_quorum_qdevice - crete/delete qdevice in pacemaker cluster

pcs_stonith_level - crete/delete stonith levels in pacemaker cluster

detect_pacemaker_cluster - fact collecting module for collecting various information about pacemaker cluster (currently only the nodes cluster considers to be part of)

Example playbook for including modules in your playbook

- hosts: servers
  roles:
     - { role: ondrejhome.pcs-modules-2 }

Use the ansible-doc command to get more information about each module and to see examples of its use.

ansible-doc -M library/ pcs_resource

• RRP on EL7 is limited to 2 links and following message can be observed if more than 2 links are attempted. pcs_cluster module will consider only 2 links and ignore rest of specified silently to avoid this issue. If you have platform with pcs-0.9 where you can create cluster with 3 or more redundant links (using pcs) then feel free to open issue and provide details.

  [MAIN  ] parse error in config: interface ring number 2 is bigger than allowed maximum 1
  

GPLv3 or Apache License 2.0, check LICENSE file for more information

WARNING: Despite the modules are used by the Author regularly they are tested only manually

To get in touch with author you can use email [email protected] or create a issue on github when requesting some feature.