Add Ansible playbook for node configuration

This will replace all of the existing node provisioning/configuration.
CentOS 7 nodes are currently supported.

Signed-off-by: Martin Schwenke <martin@meltin.net>

1 files changed, 19 insertions, 0 deletions

diff --git a/ansible/node/roles/storage/templates/gpfs_primary_secondary.j2 b/ansible/node/roles/storage/templates/gpfs_primary_secondary.j2
new file mode 100644
index 0000000..aec7a37
--- /dev/null
+++ b/ansible/node/roles/storage/templates/gpfs_primary_secondary.j2
@@ -0,0 +1,19 @@
+{#                                                      #}
+{# Count dedicated storage nodes                        #}
+{#                                                      #}
+{% set num_storage_nodes = 0                            %}
+{% for hostname, n in nodes | dictsort                  %}
+{%   if n.has_shared_storage and not n.is_ctdb_node     %}
+{%     set num_storage_nodes = num_storage_nodes + 1    %}
+{%   endif                                              %}
+{% endfor                                               %}
+{#                                                      #}
+{# Write a single line containing "primary secondary"   #}
+{#                                                      #}
+{% if num_storage_nodes >= 2                            %}
+{{ groups['storage-nodes'][0] }} {{ groups['storage-nodes'][1] }}
+{% elif num_storage_nodes == 1                          %}
+{{ groups['storage-nodes'][0] }} {{ groups['nas-nodes'][0] }}
+{% else                                                 %}
+{{ groups['nas-nodes'][0] }} {{ groups['nas-nodes'][1] }}
+{% endif %}