From a89e88a786dc1fbe3f6c49f24388da33d6703c1f Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Tue, 26 Oct 2021 12:24:44 +0200
Subject: installing grafana dashboards works now

---
 roles/monitoring/grafana/defaults/main.yml | 15 ++++++++++++---
 roles/monitoring/grafana/tasks/main.yml    | 29 +++++++++++++++++++++++------
 2 files changed, 35 insertions(+), 9 deletions(-)

(limited to 'roles/monitoring')

diff --git a/roles/monitoring/grafana/defaults/main.yml b/roles/monitoring/grafana/defaults/main.yml
index fad27b4a..f2149dd5 100644
--- a/roles/monitoring/grafana/defaults/main.yml
+++ b/roles/monitoring/grafana/defaults/main.yml
@@ -36,6 +36,15 @@ grafana_datasources: []
 #      tlsSkipVerify: true
 
 grafana_dashboards: []
-  # - node-full
-  # - chronyd
-  # - environment-sensors
+#  - file: node-full
+#    datasource: "Prometheus"
+#  - file: chronyd
+#    datasource: "Prometheus"
+#  - file: environment-sensors
+#    datasource: "Prometheus"
+#  - content: '... json-data ...'
+#    name: bar
+#    datasource: "Graphite"
+#  - id: 19
+#    revision: 3
+#    datasource: "Foo"
diff --git a/roles/monitoring/grafana/tasks/main.yml b/roles/monitoring/grafana/tasks/main.yml
index 46130882..8b1db9c6 100644
--- a/roles/monitoring/grafana/tasks/main.yml
+++ b/roles/monitoring/grafana/tasks/main.yml
@@ -86,14 +86,31 @@
     group: grafana
     mode: 0750
 
-  ## TODO: fix datasource selection
-- name: install
-  loop: "{{ grafana_dashboards }}"
+- name: install dashboards from file
+  loop: "{{ grafana_dashboards | selectattr('file', 'defined') }}"
+  loop_control:
+    label: "{{ item.file }} -> {{ item.datasource }}"
+  copy:
+    content: "{{ lookup('file', 'dashboard-'+item.file+'.json') | regex_replace('\"(?:\\${)?DS_[A-Z0-9_-]+(?:})?\"', '\"'+item.datasource+'\"') }}\n"
+    dest: "/var/lib/grafana/dashboards/ansible/{{ item.datasource }}_{{ item.file }}.json"
+
+- name: install dashboards from content
+  loop: "{{ grafana_dashboards | selectattr('content', 'defined') }}"
+  loop_control:
+    label: "{{ item.name }} -> {{ item.datasource }}"
   copy:
-    src: "dashboard-{{ item }}.json"
-    dest: "/var/lib/grafana/dashboards/ansible/{{ item }}.json"
+    content: "{{ item.content | regex_replace('\"(?:\\${)?DS_[A-Z0-9_-]+(?:})?\"', '\"'+item.datasource+'\"') }}\n"
+    dest: "/var/lib/grafana/dashboards/ansible/{{ item.datasource }}_{{ item.name }}.json"
+
+  ## TODO: implement this
+- name: install dashboards from grafana.com
+  loop: "{{ grafana_dashboards | selectattr('id', 'defined') }}"
+  loop_control:
+    label: "https://grafana.com/api/dashboards/{{ item.id }} -> {{ item.datasource }}"
+  debug:
+    msg: 'installing dashboards from grafana.com is not yet supported!'
 
-- name: make sure grafan-server is enabled and started
+- name: make sure grafana-server is enabled and started
   systemd:
     name: grafana-server
     state: started
-- 
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