Add the monitoring stack

monitoring/roles/cadvisor/tasks/main.yaml

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+---
+# Tasks for cAdvisor (Container Advisor) role
+- name: Pull Container Advisor image
+  docker_image:
+    name: "{{ cadvisor_image }}"
+    source: pull
+    force_source: yes
+
+- name: Create Container Advisor container
+  docker_container:
+    name: "{{ cadvisor_container }}"
+    image: "{{ cadvisor_image }}"
+    state: started
+    restart_policy: "unless-stopped"
+    env:
+      TZ: "Asia/Kolkata"
+    published_ports:
+      - "127.0.0.1:{{ cadvisor_port }}:8080"
+    volumes:
+      - /:/rootfs:ro
+      - /var/run:/var/run:ro
+      - /sys:/sys:ro
+      - /var/lib/docker/:/var/lib/docker:ro
+    privileged: yes
+    devices:
+      - "/dev/kmsg"

monitoring/roles/grafana/defaults/main.yaml

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+---
+# Default variables for Grafana role
+grafana_user: "{{ ansible_user }}"
+grafana_image: "grafana/grafana:latest"
+grafana_directory: "/opt/grafana"
+grafana_container: "grafana"

monitoring/roles/grafana/tasks/main.yaml

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+---
+# Tasks for Grafana role
+- name: Look up the Grafana user
+  getent:
+    database: passwd
+    key: "{{ grafana_user }}"
+    split: ":"
+
+- name: Pull Grafana image
+  docker_image:
+    name: "{{ grafana_image }}"
+    source: pull
+    force_source: yes
+
+- name: Ensure Grafana Directory exists
+  file:
+      path: "{{ grafana_directory }}"
+      state: directory
+      group: "{{ grafana_user }}"
+      owner: "{{ grafana_user }}"
+      mode: 0755
+
+- name: Create Grafana container
+  docker_container:
+    name: "{{ grafana_container }}"
+    image: "{{ grafana_image }}"
+    state: started
+    restart_policy: "unless-stopped"
+    user: "{{ getent_passwd[grafana_user][1] }}:{{ getent_passwd[grafana_user][2] }}"
+    env:
+      GF_SERVER_ROOT_URL: "https://{{ http_host }}"
+      GF_INSTALL_PLUGINS: "grafana-clock-panel, grafana-simple-json-datasource, natel-discrete-panel, briangann-gauge-panel, vonage-status-panel, neocat-cal-heatmap-panel, natel-plotly-panel"
+      GF_AUTH_ANONYMOUS_ENABLED: "true"
+      GF_AUTH_ANONYMOUS_ORG_NAME: "Public"
+      GF_AUTH_ANONYMOUS_ORG_ROLE: "Viewer"
+      GF_AUTH_ANONYMOUS_HIDE_VERSION: "true"
+    links:
+      - "{{ influx_container }}:influx"
+    published_ports:
+      - 127.0.0.1:3005:3000
+    volumes:
+      - "{{ grafana_directory }}:/var/lib/grafana"

monitoring/roles/loki/tasks/main.yaml

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+---
+# The image is configured to run by default as user loki with UID 10001 and GID 10001.
+# You can use a different user, specially if you are using bind mounts, by specifying
+# the UID with a docker run command and using --user=UID with a numeric UID suited to your needs.
+
+# Tasks for Loki role
+- name: Pull Loki image
+  docker_image:
+    name: "{{ loki_image }}"
+    source: pull
+    force_source: yes
+
+- name: Ensure Loki Directory exists
+  file:
+      path: "{{ loki_directory }}"
+      state: directory
+      group: "{{ loki_user }}"
+      owner: "{{ loki_user }}"
+      mode: 0755
+
+# - name: Ensure Loki Config Directory exists
+#   file:
+#       path: "{{ loki_directory }}/config"
+#       state: directory
+#       group: "{{ loki_user }}"
+#       owner: "{{ loki_user }}"
+#       mode: 0755
+
+- name: Copy the Loki conf file
+  template:
+    src: "files/loki-config.yaml"
+    dest: "{{ loki_directory }}/loki-config.yaml"
+    group: "{{ loki_user }}"
+    owner: "{{ loki_user }}"
+    mode: 0644
+
+- name: Create Loki container
+  docker_container:
+    name: "{{ loki_container }}"
+    image: "{{ loki_image }}"
+    state: started
+    restart_policy: "unless-stopped"
+    published_ports:
+      - "127.0.0.1:{{ loki_port }}:3100"
+    volumes:
+      - "{{ loki_directory }}:/mnt/config"
+    command:
+      - "-config.file=/mnt/config/loki-config.yaml"

monitoring/roles/node-exporter/tasks/main.yaml

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+---
+# Tasks for Node exporter role
+- name: Pull Node exporter image
+  docker_image:
+    name: "{{ node_exporter_image }}"
+    source: pull
+    force_source: yes
+
+- name: Create Node exporter container
+  docker_container:
+    name: "{{ node_exporter_container }}"
+    image: "{{ node_exporter_image }}"
+    state: started
+    restart_policy: "unless-stopped"
+    published_ports:
+      - "127.0.0.1:{{ node_exporter_port }}:9100"
+    volumes:
+      - /proc:/host/proc:ro
+      - /sys:/host/sys:ro
+      - /:/rootfs:ro,rslave
+    command:
+      - '--path.procfs=/host/proc'
+      - '--path.rootfs=/rootfs'
+      - '--path.sysfs=/host/sys'
+      - '--collector.filesystem.mount-points-exclude=^/(sys|proc|dev|host|etc)($$|/)'

monitoring/roles/promtail/defaults/main.yaml

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+---
+# Default variables for Mosquitto role
+mosquitto_user: "{{ ansible_user }}"
+mosquitto_image: "mosquitto:latest"
+mosquitto_directory: "/opt/mosquitto"
+mosquitto_container: "mosquitto"

monitoring/roles/promtail/tasks/main.yaml

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+---
+# The image is configured to run by default as user promtail with UID 10001 and GID 10001.
+# You can use a different user, specially if you are using bind mounts, by specifying
+# the UID with a docker run command and using --user=UID with a numeric UID suited to your needs.
+
+# Tasks for Promtail role
+- name: Pull Promtail image
+  docker_image:
+    name: "{{ promtail_image }}"
+    source: pull
+    force_source: yes
+
+- name: Ensure Promtail Directory exists
+  file:
+      path: "{{ promtail_directory }}"
+      state: directory
+      group: "{{ promtail_user }}"
+      owner: "{{ promtail_user }}"
+      mode: 0755
+
+- name: Copy the Promtail conf file
+  template:
+    src: "files/promtail-config.yaml"
+    dest: "{{ promtail_directory }}/promtail-config.yaml"
+    group: "{{ promtail_user }}"
+    owner: "{{ promtail_user }}"
+    mode: 0644
+
+- name: Create Promtail container
+  docker_container:
+    name: "{{ promtail_container }}"
+    image: "{{ promtail_image }}"
+    state: started
+    restart_policy: "unless-stopped"
+    links:
+      - "{{ loki_container }}:loki"
+    volumes:
+      - "{{ promtail_directory }}:/mnt/config"
+      - "/var/log:/var/log:ro"
+      - "/var/lib/docker/containers:/var/lib/docker/containers:ro"
+    # published_ports:
+    #   - "127.0.0.1:{{ promtail_port }}:9080"
+    command:
+      - "-config.file=/mnt/config/promtail-config.yaml"