From 8aa8653e21dab2e76adf71c5afd986fc542d052b Mon Sep 17 00:00:00 2001
From: Ludovic Cartier <ludovic.cartier@alterwayfr>
Date: Wed, 26 May 2021 12:01:00 +0200
Subject: [PATCH] add handlers

---
 handlers/main.yml             | 36 +++++++++++++++++++++++++
 tasks/mongodb_exporter.yml    | 31 ++++++++++++----------
 tasks/mysqld_exporter.yml     | 30 +++++++++++----------
 tasks/node_exporter.yml       | 30 +++++++++++----------
 tasks/postgresql_exporter.yml | 49 +++++++++++++----------------------
 5 files changed, 103 insertions(+), 73 deletions(-)
 create mode 100644 handlers/main.yml

diff --git a/handlers/main.yml b/handlers/main.yml
new file mode 100644
index 0000000..9d45f39
--- /dev/null
+++ b/handlers/main.yml
@@ -0,0 +1,36 @@
+---
+- name: 'prometheus | server | restart container'
+  systemd:
+    name: openvpn@{{ ansible_hostname }}.service
+    state: started
+    enabled: yes
+  tags: ['prometheus']
+
+- name: 'prometheus | node exporter | restart service'
+  systemd:
+    name: prometheus-node-exporter.service
+    state: restarted
+    enabled: yes
+  tags: ['prometheus']
+
+- name: 'prometheus | mysqld exporter | restart service'
+  systemd:
+    name: prometheus-mysqld-exporter.service
+    state: restarted
+    enabled: yes
+  tags: ['prometheus']
+
+- name: 'prometheus | mongodb exporter | restart service'
+  systemd:
+    name: prometheus-mongodb-exporter.service
+    state: restarted
+    enabled: yes
+  tags: ['prometheus']
+
+- name: 'prometheus | postgres exporter | restart service'
+  systemd:
+    name: prometheus-postgres-exporter.service
+    state: restarted
+    enabled: yes
+  tags: ['prometheus']
+
diff --git a/tasks/mongodb_exporter.yml b/tasks/mongodb_exporter.yml
index 89e11c2..91306ae 100644
--- a/tasks/mongodb_exporter.yml
+++ b/tasks/mongodb_exporter.yml
@@ -1,4 +1,19 @@
 ---
+- name: 'prometheus | mongodb exporter | install unit file to systemd'
+  template:
+    src: systemd/prometheus-mongodb-exporter.service.j2
+    dest: /etc/systemd/system/prometheus-mongodb-exporter.service
+    owner: root
+    group: root
+    mode: 0600
+
+- name: 'prometheus | mongodb exporter | configure systemd to use service'
+  systemd:
+    daemon_reload: yes
+    enabled: yes
+    state: started
+    name: prometheus-mongodb-exporter.service
+
 - name: 'prometheus | mongodb exporter | download'
   get_url:
     url: https://github.com/percona/mongodb_exporter/releases/download/v{{ prometheus_mongodb_exporter_version }}/mongodb_exporter-{{ prometheus_mongodb_exporter_version }}.linux-amd64.tar.gz
@@ -18,18 +33,6 @@
     owner: root
     group: root
     mode: 0755
+  notify:
+    - 'prometheus | mysqld exporter | restart service'
 
-- name: 'prometheus | mongodb exporter | install unit file to systemd'
-  template:
-    src: systemd/prometheus-mongodb-exporter.service.j2
-    dest: /etc/systemd/system/prometheus-mongodb-exporter.service
-    owner: root
-    group: root
-    mode: 0600
-
-- name: 'prometheus | mongodb exporter | configure systemd to use service'
-  systemd:
-    daemon_reload: yes
-    enabled: yes
-    state: started
-    name: prometheus-mongodb-exporter.service
diff --git a/tasks/mysqld_exporter.yml b/tasks/mysqld_exporter.yml
index 371bac3..47ec156 100644
--- a/tasks/mysqld_exporter.yml
+++ b/tasks/mysqld_exporter.yml
@@ -1,4 +1,18 @@
 ---
+- name: 'prometheus | mysqld exporter | install unit file to systemd'
+  template:
+    src: systemd/prometheus-mysqld-exporter.service.j2
+    dest: /etc/systemd/system/prometheus-mysqld-exporter.service
+    owner: root
+    group: root
+    mode: 0600
+
+- name: 'prometheus | mysqld exporter | configure systemd to use service'
+  systemd:
+    daemon_reload: yes
+    enabled: yes
+    name: prometheus-mysqld-exporter.service
+
 - name: 'prometheus | mysqld exporter | download'
   get_url:
     url: https://github.com/prometheus/mysqld_exporter/releases/download/v{{ prometheus_mysqld_exporter_version }}/mysqld_exporter-{{ prometheus_mysqld_exporter_version }}.linux-amd64.tar.gz
@@ -33,18 +47,6 @@
   when: 
     - prometheus_mysqld_exporter_user is defined
   register: prometheus_mysqld_exporter_configuration
+  notify:
+    - 'prometheus | mysqld exporter | restart service'
 
-- name: 'prometheus | mysqld exporter | install unit file to systemd'
-  template:
-    src: systemd/prometheus-mysqld-exporter.service.j2
-    dest: /etc/systemd/system/prometheus-mysqld-exporter.service
-    owner: root
-    group: root
-    mode: 0600
-
-- name: 'prometheus | mysqld exporter | configure systemd to use service'
-  systemd:
-    daemon_reload: yes
-    enabled: yes
-    state: started
-    name: prometheus-mysqld-exporter.service
diff --git a/tasks/node_exporter.yml b/tasks/node_exporter.yml
index 2e0274d..0897616 100644
--- a/tasks/node_exporter.yml
+++ b/tasks/node_exporter.yml
@@ -1,4 +1,18 @@
 ---
+- name: 'prometheus | node exporter | install unit file to systemd'
+  template:
+    src: systemd/prometheus-node-exporter.service.j2
+    dest: /etc/systemd/system/prometheus-node-exporter.service
+    owner: root
+    group: root
+    mode: 0600
+
+- name: 'prometheus | node exporter | configure systemd to use service'
+  systemd:
+    daemon_reload: yes
+    enabled: yes
+    name: prometheus-node-exporter.service
+
 - name: 'prometheus | node exporter | download'
   get_url:
     url: https://github.com/prometheus/node_exporter/releases/download/v{{ prometheus_node_exporter_version }}/node_exporter-{{ prometheus_node_exporter_version }}.linux-amd64.tar.gz
@@ -18,18 +32,6 @@
     owner: root
     group: root
     mode: 0755
+  notify:
+    - 'prometheus | node exporter | restart service'
 
-- name: 'prometheus | node exporter | install unit file to systemd'
-  template:
-    src: systemd/prometheus-node-exporter.service.j2
-    dest: /etc/systemd/system/prometheus-node-exporter.service
-    owner: root
-    group: root
-    mode: 0600
-
-- name: 'prometheus | node exporter | configure systemd to use service'
-  systemd:
-    daemon_reload: yes
-    enabled: yes
-    state: started
-    name: prometheus-node-exporter.service
diff --git a/tasks/postgresql_exporter.yml b/tasks/postgresql_exporter.yml
index 18f72d6..a7ddbc5 100644
--- a/tasks/postgresql_exporter.yml
+++ b/tasks/postgresql_exporter.yml
@@ -1,4 +1,20 @@
 ---
+- name: 'prometheus | postgres exporter | install unit file to systemd'
+  template:
+    src: systemd/prometheus-postgres-exporter.service.j2
+    dest: /etc/systemd/system/prometheus-postgres-exporter.service
+    owner: root
+    group: root
+    mode: 0600
+
+
+- name: 'prometheus | postgres exporter | configure systemd to use service'
+  systemd:
+    daemon_reload: yes
+    enabled: yes
+    state: started
+    name: prometheus-postgres-exporter.service
+
 - name: 'prometheus | postgres exporter | download'
   get_url:
     url: https://github.com/prometheus-community/postgres_exporter/releases/download/v{{ prometheus_postgres_exporter_version }}/postgres_exporter-{{ prometheus_postgres_exporter_version }}.linux-amd64.tar.gz
@@ -19,22 +35,6 @@
     group: root
     mode: 0755
 
-- name: 'prometheus | postgres exporter | configuration'
-  copy:
-    dest: '/var/lib/prometheus/.my.cnf'
-    owner: root
-    group: root
-    mode: 0644
-    backup: yes
-    content: |
-      [client]
-      user={{ prometheus_postgres_exporter_user }}
-      password={{ prometheus_postgres_exporter_password }}
-  when:
-    - prometheus_postgres_exporter_user is defined
-    - prometheus_postgres_exporter_password is defined
-  register: prometheus_postgres_exporter_configuration
-
 - name: 'prometheus | postgresql exporter | configuration'
   copy:
     dest: '/etc/default/prometheus-postgres-exporter'
@@ -51,19 +51,6 @@
     - prometheus_postgres_exporter_host is defined
     - prometheus_postgres_exporter_port is defined
   register: prometheu_postgres_exporter_configuration
+  notify:
+    - 'prometheus | postgres exporter | restart service'
 
-- name: 'prometheus | postgres exporter | install unit file to systemd'
-  template:
-    src: systemd/prometheus-postgres-exporter.service.j2
-    dest: /etc/systemd/system/prometheus-postgres-exporter.service
-    owner: root
-    group: root
-    mode: 0600
-
-
-- name: 'prometheus | postgres exporter | configure systemd to use service'
-  systemd:
-    daemon_reload: yes
-    enabled: yes
-    state: started
-    name: prometheus-postgres-exporter.service