Merge branch 'cherry-pick-532adfe0' into 'master_6.rc.x'

CP 6RC - Story #10943: node_exporter logs redirect

Story #10943: node_exporter logs redirect

Update role node_exporter
* Configure logs output under `/vitam/log/node_exporter/`
* Deploy custom systemd script
* Configure log_level with parameter `prometheus.node_exporter.log_level`
* Add logrotate function with parameters
  * `prometheus.node_exporter.logrotate`: default(enabled) or disabled
  * `prometheus.node_exporter.history_days`: default(30)

See merge request vitam/vitam!9444

(cherry picked from commit 532adfe)

a435472 Story #10943: node_exporter logs redirect

See merge request vitam/vitam!9448

deployment/ansible-vitam-extra/roles/prometheus-node-exporter/tasks/prometheus_node_exporter_disabled.yml

@@ -9,6 +9,11 @@
   until: result is succeeded
   delay: "{{ packages_install_retries_delay | default(10) }}"
 
+- name: Remove logrotate configuration for node-exporter
+  file:
+    path: /etc/logrotate.d/node-exporter
+    state: absent
+
 - name: Remove consul agent service declaration for node-exporter
   file:
     path: "{{ consul_folder_conf }}/service-node-exporter.json"

deployment/ansible-vitam-extra/roles/prometheus-node-exporter/tasks/prometheus_node_exporter_enabled.yml

@@ -49,6 +49,30 @@
   tags:
     - update_node_exporter_configuration
 
+- name: Deploy systemd service file for node_exporter
+  template:
+    src: vitam-node-exporter.service.j2
+    dest: "{{ '/lib/systemd/system' if ansible_distribution == 'Debian' else '/usr/lib/systemd/system' }}/vitam-node-exporter.service"
+    owner: root
+    group: root
+    mode: "0644"
+  notify: "prometheus-node-exporter - restart service"
+
+- name: Enable logrotate for node_exporter
+  template:
+    src: node-exporter.logrotate.j2
+    dest: /etc/logrotate.d/node-exporter
+    owner: root
+    group: root
+    mode: 0644
+  when: prometheus.node_exporter.logrotate | default('enabled') | lower == 'enabled'
+
+- name: Disable logrotate for node_exporter
+  file:
+    path: /etc/logrotate.d/node-exporter
+    state: absent
+  when: prometheus.node_exporter.logrotate | default('enabled') | lower == 'disabled'
+
 #### Consul configuration ####
 - name: Ensure consul config dir is OK
   file:

deployment/ansible-vitam-extra/roles/prometheus-node-exporter/templates/node-exporter.logrotate.j2

@@ -0,0 +1,15 @@
+{{ ansible_managed | comment }}
+
+{{ vitam_defaults.folder.root_path }}/log/node_exporter/node-exporter.log {
+        daily
+        rotate {{ prometheus.node_exporter.history_days | default(30) }}
+        copytruncate
+        dateext
+        dateformat -%Y-%m-%d
+        dateyesterday
+        extension .log
+        compress
+        delaycompress
+        notifempty
+        missingok
+}

deployment/ansible-vitam-extra/roles/prometheus-node-exporter/templates/node_exporter.j2

@@ -1 +1 @@
-NODE_EXPORTER_OPTS='--web.listen-address={{ ip_admin }}:{{ prometheus.node_exporter.port | default(9101) }} --web.telemetry-path={{ prometheus.node_exporter.metrics_path | default('/metrics') }} --collector.textfile.directory /vitam/data/node_exporter/textfile_collector'
+NODE_EXPORTER_OPTS='--web.listen-address={{ ip_admin }}:{{ prometheus.node_exporter.port | default(9101) }} --web.telemetry-path={{ prometheus.node_exporter.metrics_path | default('/metrics') }} --collector.textfile.directory /vitam/data/node_exporter/textfile_collector --log.level={{ prometheus.node_exporter.log_level | default('warn') }}'

deployment/ansible-vitam-extra/roles/prometheus-node-exporter/templates/vitam-node-exporter.service.j2

@@ -0,0 +1,18 @@
+# -*- mode: conf -*-
+
+[Unit]
+Description=Prometheus Node Exporter.
+Documentation=https://github.com/prometheus/node_exporter
+After=network.target
+
+[Service]
+EnvironmentFile=-/vitam/conf/node_exporter/sysconfig/node_exporter
+User=vitam
+Group=vitam
+ExecStart=/bin/bash -c 'exec /vitam/bin/node_exporter/node_exporter $NODE_EXPORTER_OPTS 2>> {{ vitam_defaults.folder.root_path | default('/vitam') }}/log/node_exporter/node-exporter.log'
+ExecReload=/bin/kill -HUP $MAINPID
+Restart=always
+LimitNOFILE=65536
+
+[Install]
+WantedBy=multi-user.target

deployment/environments/group_vars/all/advanced/cots_vars.yml

@@ -158,6 +158,9 @@ prometheus:
         enabled: true
         port: 9101
         metrics_path: /metrics
+        log_level: "warn"
+        logrotate: enabled # or disabled
+        history_days: 30 # How many days to store logs if logrotate is set to 'enabled'
     consul_exporter:
         enabled: true
         port: 9107