Add common Ansible role

operations/common/tasks/apt.yml

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+---
+#
+# Installs upgrades and configures package manager.
+#
+
+- name: Upgrade packages
+  apt:
+    update_cache: yes
+    upgrade: dist
+  register: result
+
+- name: Update GRUB
+  command: update-grub
+  environment:
+    UCF_FORCE_CONFFNEW: YES
+  when: result | changed
+
+- name: Install Debian utilities
+  apt:
+    name: "{{ item }}"
+    state: present
+  with_items:
+    - debconf-utils
+    - unattended-upgrades
+
+- name: Enable unattended upgrades
+  debconf:
+    name: unattended-upgrades
+    question: unattended-upgrades/enable_auto_updates
+    vtype: boolean
+    value: "true"
+  register: result
+
+- name: Reconfigure unattended upgrades
+  command: dpkg-reconfigure -f noninteractive unattended-upgrades
+  when: result | changed

operations/common/tasks/main.yml

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+---
+#
+# Common tasks.
+#
+
+- name: Configure packages
+  include: apt.yml
+
+- name: Configure time
+  include: time.yml
+
+- name: Configure utilities
+  include: util.yml

operations/common/tasks/time.yml

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+---
+#
+# Configures time and synchronization.
+#
+
+- name: Set timezone to Etc/UTC
+  file:
+    src: /usr/share/zoneinfo/Etc/UTC
+    dest: /etc/timezone
+    force: yes
+    state: link
+  register: result
+
+- name: Reconfigure tzdata
+  command: dpkg-reconfigure -f noninterractive tzdata
+  when: result | changed
+
+- name: Install NTP daemon
+  apt:
+    name: ntp
+    state: present
+
+- name: Start NTP daemon
+  service:
+    name: ntp
+    state: started

operations/common/tasks/util.yml

@@ -0,0 +1,15 @@
+---
+#
+# Installs common utilities.
+#
+
+- name: Install utilities
+  apt:
+    name: "{{ item }}"
+    state: present
+  with_items:
+    - bmon
+    - htop
+    - iotop
+    - screen
+    - vim

operations/tracker.yml

@@ -0,0 +1,9 @@
+---
+#
+# Configures trackers.
+#
+
+- name: Tracker
+  hosts: trackers
+  roles:
+    - common