From 6a920532325a8b3c5188f0583227f3859ffff200 Mon Sep 17 00:00:00 2001
From: Iurii Tatishchev <itatishch@gmail.com>
Date: Wed, 5 Jul 2023 17:56:52 -0700
Subject: [PATCH] monitoring: add cadvisor to prometheus

---
 .../prometheus_config/prometheus.yml.j2       |  4 ++
 roles/common/tasks/main.yml                   | 10 ++++
 roles/common/templates/default/cadvisor.j2    | 47 +++++++++++++++++++
 3 files changed, 61 insertions(+)
 create mode 100644 roles/common/templates/default/cadvisor.j2

diff --git a/roles/alpina/collections/services/monitoring/templates/prometheus_config/prometheus.yml.j2 b/roles/alpina/collections/services/monitoring/templates/prometheus_config/prometheus.yml.j2
index 5e6e512..39bf78a 100644
--- a/roles/alpina/collections/services/monitoring/templates/prometheus_config/prometheus.yml.j2
+++ b/roles/alpina/collections/services/monitoring/templates/prometheus_config/prometheus.yml.j2
@@ -14,6 +14,10 @@ scrape_configs:
     static_configs:
       - targets: ["{{ ansible_host }}:9100"]
 
+  - job_name: "cadvisor"
+    static_configs:
+      - targets: ["{{ ansible_host }}:9110"]
+
   - job_name: "loki"
     static_configs:
       - targets: ["loki:3100"]
diff --git a/roles/common/tasks/main.yml b/roles/common/tasks/main.yml
index caeb3da..63e3c2e 100644
--- a/roles/common/tasks/main.yml
+++ b/roles/common/tasks/main.yml
@@ -1,3 +1,12 @@
+- name: Configure cadvisor
+  become: yes
+  template:
+    src: default/cadvisor.j2
+    dest: /etc/default/cadvisor
+    owner: root
+    group: root
+    mode: 0644
+
 - name: Install Debian packages
   become: yes
   ansible.builtin.apt:
@@ -6,6 +15,7 @@
      - docker-compose-plugin
      - firewalld
      - prometheus-node-exporter
+     - cadvisor
     state: latest
 
 - name: Upgrade Debian packages
diff --git a/roles/common/templates/default/cadvisor.j2 b/roles/common/templates/default/cadvisor.j2
new file mode 100644
index 0000000..1b35da0
--- /dev/null
+++ b/roles/common/templates/default/cadvisor.j2
@@ -0,0 +1,47 @@
+# config options for cadvisor(1)
+#
+
+# Docker endpoint to connect to
+# Default: unix:///var/run/docker.sock
+CADVISOR_DOCKER_ENDPOINT="unix:///var/run/docker.sock"
+
+# Port to listen on
+# Default: 8080
+CADVISOR_PORT="9110"
+
+# Storage driver
+# Default: none/blank
+#
+# Available Options:
+#  - <empty>
+#  - bigquery
+#  - elasticsearch
+#  - kafka
+#  - redis
+#  - statsd
+#  - stdout
+CADVISOR_STORAGE_DRIVER=""
+
+# Storage driver host
+# Default: localhost:8086"
+CADVISOR_STORAGE_DRIVER_HOST="localhost:8086"
+
+# Storage driver password
+# Default: root
+CADVISOR_STORAGE_DRIVER_PASSWORD="root"
+
+# Storage driver secure connection
+# Default: false
+CADVISOR_STORAGE_DRIVER_SECURE="false"
+
+# Storage driver user
+# Default: root
+CADVISOR_STORAGE_DRIVER_USER="root"
+
+# Log to stderr ("true" logs to journal on systemd
+# and "false" to "/var/log/cadvisor.log" on SysV)
+# Default: true
+CADVISOR_LOG_TO_STDERR="true"
+
+# Other options:
+#DAEMON_ARGS=""