monitoring/prometheus: pinning packages

1 files changed, 17 insertions, 2 deletions

diff --git a/roles/monitoring/prometheus/alertmanager/tasks/main.yml b/roles/monitoring/prometheus/alertmanager/tasks/main.yml
index 173ea758..796f9def 100644
--- a/roles/monitoring/prometheus/alertmanager/tasks/main.yml
+++ b/roles/monitoring/prometheus/alertmanager/tasks/main.yml
@@ -6,11 +6,26 @@
     - spreadspace_apt_repo_components is defined
     - "'prometheus' in spreadspace_apt_repo_components"
 
-  ## TODO: pin version
+- name: generate apt pin file for alertmanager package
+  when: prometheus_alertmanager_version is defined
+  copy:
+    dest: "/etc/apt/preferences.d/prom-alertmanager.pref"
+    content: |
+      Package: prom-alertmanager
+      Pin: version {{ prometheus_alertmanager_version }}-1
+      Pin-Priority: 1001
+
+- name: remove apt pin file for alertmanager package
+  when: prometheus_alertmanager_version is not defined
+  file:
+    path: "/etc/apt/preferences.d/prom-alertmanager.pref"
+    state: absent
+
 - name: install apt packages
   apt:
-    name: prom-alertmanager
+    name: "prom-alertmanager{% if prometheus_alertmanager_version is defined %}={{ prometheus_alertmanager_version }}-1{% endif %}"
     state: present
+    allow_downgrade: yes
 
 - name: add user for alertmanager
   user: