Add common role and docker install

inventory.tmpl.ini

@@ -1,4 +1,4 @@
 [nextcloud]
-nextcloud ansible_host={{INSTANCE}} ansible_user=ubuntu
+nextcloud ansible_host={{INSTANCE}} ansible_user=ubuntu hostname=nextcloud
 [nextcloud:vars]
 ansible_ssh_common_args=-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o ProxyCommand="sh -c \"aws ssm start-session --target %h --document-name AWS-StartSSHSession --parameters portNumber=%p\""

roles/common/handlers/main.yml

@@ -0,0 +1,6 @@
+---
+
+- name: reboot
+  reboot:
+    reboot_timeout: 3600
+

roles/common/tasks/main.yaml

@@ -0,0 +1,67 @@
+---
+
+# configure system
+
+- name: Configure hostname
+  copy:
+    content: "{{ hostname }}"
+    dest: /etc/hostname
+  notify: reboot
+# yep we reboot for this
+
+- name: hostname in hosts
+  lineinfile:
+    path: /etc/hosts
+    regexp: "^127.0.0.1"
+    line: "127.0.0.1	{{ hostname }} localhost"
+
+- name: Set timezone
+  file:
+    src: /usr/share/zoneinfo/America/Los_Angeles
+    dest: /etc/localtime
+    state: link
+  notify: reboot
+
+- name: Set keyboard
+  lineinfile:
+    path: /etc/default/keyboard
+    regexp: '^XKBLAYOUT='
+    line: 'XKBLAYOUT="us"'
+  notify: reboot
+
+- name: Shaboom!!!
+  apt:
+    update_cache: yes
+    upgrade: dist
+    force_apt_get: yes
+  retries: 2
+  delay: 10
+
+- name: install base apps
+  apt:
+    force_apt_get: yes
+    name:
+      - vim
+      - less
+      - tmux
+      - telnet
+      - ntp
+      - lsof
+
+- name: edit bashrc
+  blockinfile:
+    path: /etc/bash.bashrc
+    marker: "### {mark} ANSIBLE MANAGED BLOCK {{ item.name }} ###"
+    block: "{{ item.block }}"
+  with_items:
+    - name: prompt
+      block: |
+        if [[ $USER == 'root' ]]; then
+          PS1='${debian_chroot:+($debian_chroot)}\[\033[01;31m\]\u@\h\[\033[00m\]:\[\033[01;33m\]\w\[\033[00m\]# '
+        else
+          PS1='${debian_chroot:+($debian_chroot)}\[\033[01;36m\]\u@\h\[\033[00m\]:\[\033[01;32m\]\w\[\033[00m\]\$ '
+        fi
+    - name: lscolor
+      block: |
+        alias ls='ls --color=auto'
+

roles/common/templates/rpi_custom_exporter.service

@@ -0,0 +1,11 @@
+
+[Unit]
+Description=Pi4 custom collector
+After=network.target
+
+[Service]
+ExecStart=/srv/rpi_custom_exporter/exporter.py
+Restart=on-failure
+
+[Install]
+WantedBy=multi-user.target

roles/common/templates/rpi_exporter.py

@@ -0,0 +1,26 @@
+#!/usr/bin/env python
+
+import time
+from prometheus_client.core import GaugeMetricFamily, REGISTRY, CounterMetricFamily
+from prometheus_client import start_http_server
+from gpiozero import CPUTemperature
+
+class CustomCollector(object):
+    def __init__(self):
+        pass
+
+    def collect(self):
+        val = CPUTemperature()
+        t = GaugeMetricFamily("rpi_cpu_temperature", "CPU Temperature", labels=['instance'])
+        t.add_metric(['C'], val.temperature)
+        yield t
+
+        f = GaugeMetricFamily("rpi_cpu_temperature_f", "CPU Temperature", labels=['instance'])
+        f.add_metric(['F'], val.temperature * (9.0/5.0) + 32)
+        yield t
+
+if __name__ == '__main__':
+    start_http_server(7998)
+    REGISTRY.register(CustomCollector())
+    while True:
+        time.sleep(1)

roles/common/templates/rsyslog-rng.conf

@@ -0,0 +1,2 @@
+:programname,startswith,"rng" /dev/null
+:programname,startswith,"rng" stop

roles/nextcloud/tasks/main.yaml

@@ -8,3 +8,26 @@
     - db
     - data
 
+- name: install docker
+  apt:
+    force_apt_get: yes
+    name: "{{ packages }}"
+  vars:
+    packages:
+      - docker.io
+      - docker-compose
+
+- name: Add users to docker group
+  user:
+    name: "{{ item }}"
+    groups: docker
+    append: yes
+  with_items:
+    - ubuntu
+
+- name: do some cleanup
+  command: "{{item}}"
+  with_items:
+    - "docker image prune -a --force"
+    - "docker system prune --volumes --force"
+

site.yaml

@@ -3,6 +3,11 @@
 #- name: get environment
 #  ec2_metadata_facts:
 
+- name: apply common config
+  hosts: all
+  roles:
+    - { role: common, become: yes }
+
 - name: setup nextcloud instance
   hosts: nextcloud
   roles: