Ansible Role: pacemaker

Description

This role provides the pacemaker/corosync services to set up and configure a HA cluster.

Installation

ansible-galaxy install skriptfabrik.pacemaker

Requirements

None

Role Variables

Variable	Type	Default	Comments
corosync_authkey_file	string	/etc/corosync/authkey	corosync auth key file path
corosync_bindnet_interface	string		interface used for cluster communication
corosync_cluster_name	string	corosync-cluster	corosync cluster name
corosync_config_file	string	/etc/corosync/corosync.conf	corosync config file path
corosync_log_file	string	/var/log/corosync/corosync.log	corosync log file path
pacemaker_cluster_group	string		clusters ansible host group name
pacemaker_cluster_properties	list of dictionaries		cluster settings definition
pacemaker_cluster_resources	list of dictionaries		cluster resources definition
pacemaker_cluster_constraints	list of dictionaries		cluster constraints definition

pacemaker_cluster_properties definition dictionary

Key	Type	Default	Comments
name	string		Cluster property name
state	string	present	present: create or update the resource absent: remove the resource
value	mixed	null	Cluster property value (set to default if value is not defined)

pacemaker_cluster_resources definition dictionary

Key	Type	Default	Comments
resource_id	string		Unique cluster resource name
state	string	present	present: create or update the resource absent: remove the resource
provider	string		Name of the resource provider (use pcs resource providers to list all available providers)
options	list of strings	[]	Optional list of the provider options
operations	list of dictionaries	[]	Optional list resource operations
stickiness	integer	0	Optional resource stickiness value
test_command	string	null	Optional command to test a service resource configuration

operations definition dictionary

Key	Type	Default	Comments
name	string		Operation name (e.g. start, stop, monitor)
state	string	present	present: create or update the resource absent: remove the resource
options	list of strings	[]	Optional list of the operation options

pacemaker_cluster_constraints definition dictionary

Key	Type	Default	Comments
type	string		Constraint type one of colocation or order
colocation	dictionary		Colocation constraint settings for type=colocation
order	dictionary		Order constraint settings for type=order

colocation constraint definition dictionary

Key	Type	Default	Comments
state	string	present	present: create or update the constraint absent: remove the constraint
source_resource_id	string		Constraint source resource id
target_resource_id	string		Constraint target resource id
score	integer/string	INFINITY	Constraint score

order constraint definition dictionary

Key	Type	Default	Comments
first_resource	string		ID of the first resource
first_resource_action	string		Action of the first resource (e.g. ´start`)
second_resource	string		ID of the second resource
second_resource_action	string		Optional action of the second resource (e.g. ´start`)
options	list of strings	[]	Optional list of the order options

Dependencies

None

Example Playbook

- hosts: all
  roles:
    - skriptfabrik.pacemaker

Author

• Frank Giesecke

License

This project is under the MIT License.

Copyright

(c) 2022, skriptfabrik GmbH