From 79f6cd774a4d66ebe909bddf3aca93c377f45c42 Mon Sep 17 00:00:00 2001
From: Robin Wallace <robin.wallace@elastisys.com>
Date: Mon, 20 Jun 2022 09:34:31 +0200
Subject: [PATCH] create snapshot-controller only if needed
---
library/kube.py | 7 ++++++-
.../snapshots/snapshot-controller/tasks/main.yml | 16 ++++++++++++++--
2 files changed, 20 insertions(+), 3 deletions(-)
diff --git a/library/kube.py b/library/kube.py
index 8fc47bbc6..cb9f4f0cf 100644
--- a/library/kube.py
+++ b/library/kube.py
@@ -314,7 +314,7 @@ def main():
wait=dict(default=False, type='bool'),
all=dict(default=False, type='bool'),
log_level=dict(default=0, type='int'),
- state=dict(default='present', choices=['present', 'absent', 'latest', 'reloaded', 'stopped']),
+ state=dict(default='present', choices=['present', 'absent', 'latest', 'reloaded', 'stopped', 'exists']),
recursive=dict(default=False, type='bool'),
),
mutually_exclusive=[['filename', 'list']]
@@ -339,6 +339,11 @@ def main():
elif state == 'latest':
result = manager.replace()
+ elif state == 'exists':
+ result = manager.exists()
+ module.exit_json(changed=changed,
+ msg='%s' % result)
+
else:
module.fail_json(msg='Unrecognized state %s.' % state)
diff --git a/roles/kubernetes-apps/snapshots/snapshot-controller/tasks/main.yml b/roles/kubernetes-apps/snapshots/snapshot-controller/tasks/main.yml
index 9b25c721e..8663e8a24 100644
--- a/roles/kubernetes-apps/snapshots/snapshot-controller/tasks/main.yml
+++ b/roles/kubernetes-apps/snapshots/snapshot-controller/tasks/main.yml
@@ -1,15 +1,27 @@
---
+- name: check if snapshot namespace exists
+ register: snapshot_namespace_exists
+ kube:
+ kubectl: "{{ bin_dir }}/kubectl"
+ name: "{{ snapshot_controller_namespace }}"
+ resource: "namespace"
+ state: "exists"
+ when: inventory_hostname == groups['kube_control_plane'][0]
+ tags: snapshot-controller
+
- name: Snapshot Controller | Generate Manifests
template:
src: "{{ item.file }}.j2"
dest: "{{ kube_config_dir }}/{{ item.file }}"
mode: 0644
with_items:
- - {name: snapshot-ns, file: snapshot-ns.yml}
+ - {name: snapshot-ns, file: snapshot-ns.yml, apply: not snapshot_namespace_exists}
- {name: rbac-snapshot-controller, file: rbac-snapshot-controller.yml}
- {name: snapshot-controller, file: snapshot-controller.yml}
register: snapshot_controller_manifests
- when: inventory_hostname == groups['kube_control_plane'][0]
+ when:
+ - inventory_hostname == groups['kube_control_plane'][0]
+ - item.apply | default(True) | bool
tags: snapshot-controller
- name: Snapshot Controller | Apply Manifests
--
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