Docker deployment for tohtori and some refactoring

roles/base/tasks/deps_for_ansible.yml

@@ -0,0 +1,3 @@
+- name: Install python dependencies for managing apt repositories
+  apt: pkg=python-pycurl
+  tags: [nginx, repo]

roles/base/tasks/github_key.yml

@@ -0,0 +1,4 @@
+---
+- name: add github ssh keys
+  shell: ssh-keyscan github.com >> /etc/ssh/ssh_known_hosts
+  sudo: yes

roles/base/tasks/main.yml

@@ -1,4 +1,5 @@
 ---
+- include: deps_for_ansible.yml tags=base,dependencies
 - include: locale.yml tags=base,locale
 - include: users.yml tags=base,users
 - include: packages.yml tags=base,packages
@@ -7,3 +8,4 @@
 - include: ufw.yml tags=base,ufw
 - include: ntp.yml tags=base,ntp
 - include: timezone.yml tags=base,timezone
+- include: github_key.yml tags=base

roles/base/tasks/packages.yml

@@ -9,3 +9,4 @@
     - git
     - htop
     - wget
+    - ruby2.0

roles/base/tasks/swapfile.yml

@@ -0,0 +1,37 @@
+---
+- name: Write swapfile
+  command: |
+    {% if swapfile_use_dd %}
+    dd if=/dev/zero of=/swapfile bs=1M count={{ swapfile_size }} creates=/swapfile
+    {% else %}
+    fallocate -l {{ swapfile_size }} /swapfile creates=/swapfile
+    {% endif %}
+  register: write_swapfile
+  when: swapfile_size != false
+
+- name: Set swapfile permissions
+  file: path=/swapfile mode=600
+  when: swapfile_size != false
+
+- name: Create swapfile
+  command: mkswap /swapfile
+  register: create_swapfile
+  when: swapfile_size != false and write_swapfile.changed
+
+- name: Enable swapfile
+  command: swapon /swapfile
+  when: swapfile_size != false and create_swapfile.changed
+
+- name: Add swapfile to /etc/fstab
+  lineinfile: dest=/etc/fstab line="/swapfile   none    swap    sw    0   0" state=present
+  when: swapfile_size != false
+
+- name: Configure vm.swappiness
+  lineinfile: dest=/etc/sysctl.conf line="vm.swappiness = {{ swapfile_swappiness }}" regexp="^vm.swappiness[\s]?=" state=present
+  notify: Reload sysctl
+  when: swapfile_swappiness != false
+
+- name: Configure vm.vfs_cache_pressure
+  lineinfile: dest=/etc/sysctl.conf line="vm.vfs_cache_pressure = {{ swapfile_vfs_cache_pressure }}" regexp="^vm.vfs_cache_pressure[\s]?=" state=present
+  notify: Reload sysctl
+  when: swapfile_vfs_cache_pressure != false

roles/base/tasks/users.yml

@@ -5,7 +5,7 @@
 - name: create users
   user: >
     name={{ item.name }}
-    groups=admin
+    groups=admin,docker
     shell=/bin/bash
     password={{ item.password }}
   with_items: users