Move telegraf to host

This makes metric collection for SMART much simpler. I'll still be using the prometheus node exporter for actual system metrics, though.

ansible/galaxy-requirements.yml

@@ -2,6 +2,7 @@ collections:
   - ansible.posix
   - community.general
   - community.docker
+  - amazon.aws  # Dependency of rossmcdonald.telegraf
 
 roles:
   - src: geerlingguy.docker
@@ -10,3 +11,4 @@ roles:
   - src: https://github.com/IronicBadger/ansible-role-proxmox-nag-removal
     name: proxmox-nag-removal
   - src: chmduquesne.iptables_persistent
+  - src: rossmcdonald.telegraf

ansible/group_vars/all/pve.yml

@@ -15,3 +15,6 @@ pve_hosts:
     internal_ip: 10.23.1.99
   deluge:
     internal_ip: 10.23.1.52
+  pve:
+    internal_ip: 10.23.1.1
+    ip: 192.168.2.200

ansible/host_vars/pve.yml

@@ -1,5 +1,8 @@
 expose_ssh: true
 
+private_ip: "{{ pve_hosts.pve.ip }}"
+protected_ip: "{{ pve_hosts.pve.internal_ip }}"
+
 zpools_to_scrub:
   - tank
   - rpool

ansible/main.yml

@@ -76,6 +76,7 @@
     - pve
     - zfs
     - pve_nebula_route
+    - telegraf
 
 - hosts: forrest
   roles:

ansible/roles/forrest/files/prometheus/prometheus.yml

@@ -7,7 +7,7 @@ scrape_configs:
 
     static_configs:
       - targets:
-          - telegraf:9273
+          - 10.23.1.1:9273
   - job_name: traefik
     metric_relabel_configs:
       - source_labels: [__name__]

ansible/roles/forrest/files/telegraf/docker-compose.yml

@@ -1,15 +0,0 @@
-version: "2.3"
-
-services:
-  telegraf:
-    image: telegraf:alpine
-    restart: unless-stopped
-    networks:
-      - default
-      - prometheus
-    volumes:
-      - ./telegraf.conf:/etc/telegraf/telegraf.conf:ro
-
-networks:
-  prometheus:
-    external: true

ansible/roles/forrest/tasks/main.yml

@@ -6,6 +6,3 @@
 
 - name: Prometheus
   include: prometheus.yml
-
-- name: Telegraf
-  include: telegraf.yml

ansible/roles/forrest/tasks/telegraf.yml

@@ -1,26 +0,0 @@
-- name: Create telegraf install directory
-  file:
-    path: /opt/telegraf
-    state: directory
-    owner: "{{ docker_user.name }}"
-    mode: "{{ docker_compose_directory_mask }}"
-  become: true
-
-- name: Install telegraf config
-  template:
-    src: files/telegraf/telegraf.conf
-    dest: /opt/telegraf/telegraf.conf
-    mode: "{{ docker_compose_file_mask }}"
-    owner: "{{ docker_user.name }}"
-  notify: restart telegraf
-  become: true
-
-- name: Install telegraf compose file
-  template:
-    src: files/telegraf/docker-compose.yml
-    dest: /opt/telegraf/docker-compose.yml
-    mode: "{{ docker_compose_file_mask }}"
-    owner: "{{ docker_user.name }}"
-    validate: docker-compose -f %s config
-  notify: restart telegraf
-  become: true

ansible/roles/telegraf/files/telegraf.conf

@@ -85,7 +85,7 @@
 ###############################################################################
 
 [[outputs.prometheus_client]]
-  listen = ":9273"
+  listen = "{{ protected_ip }}:9273"
   metric_version = 2
 
 

ansible/roles/telegraf/tasks/main.yml

@@ -0,0 +1,4 @@
+- name: Install and configure telegraf
+  import_role:
+    name: rossmcdonald.telegraf
+  become: true

ansible/roles/telegraf/vars/main.yml

@@ -0,0 +1,2 @@
+telegraf_configuration_template: files/telegraf.conf
+telegraf_aws_tags: false