main.yml

---
#
# edX Configuration
#
# github:     https://github.com/edx/configuration
# wiki:       https://openedx.atlassian.net/wiki/display/OpenOPS
# code style: https://openedx.atlassian.net/wiki/display/OpenOPS/Ansible+Code+Conventions
# license:    https://github.com/edx/configuration/blob/master/LICENSE.TXT
#
#
#
# Tasks for role edx_service
#
# Overview:
#
# This role performs the repetive tasks that most edX roles
# require in our default configuration.
#
# Example play:
#
# Rather than being included in the play, this role
# is included as a dependency by other roles in the meta/main.yml
# file.  The including role should add the following
# depency definition.
#
# dependencies:
#   - role: edx_service
#     edx_service_name: "hotg"
#     edx_service_config: "{{ structure_to_be_written_to_config_file_in_/edx/etc }}"
#     edx_service_repos:
#       - PROTOCOL: [https/ssh]
#         DOMAIN: github.com
#         PATH: edx
#         REPO: hotg
#         VERSION: master
#         DESTINATION: "/edx/app/hotg/hotg"
#         SSH_KEY: <required if PROTOCOL==ssh>
#       - PROTOCOL
#         ...
#     edx_service_user: hotg_system_user
#     edx_service_home: "/edx/app/hotg"
#     edx_service_packages:
#       debian: [ pkg1, pkg2, pkg3 ]      
#       redhat: [ pkg4, pkg5 ]
#
# Assumes that the home directory has been created above.
# In some cases(vagrant boxes) the home directory gets created
# but does not have the corrent owner and group. In vagrant for
# example we were seeing it defaulting to `root` for both.
# The item that is a blank string("") ensures the ownership
# of the home directory is always correct before proceeding.
- name: Create edx_service app, venv, data, and staticfiles dirs
  file:
    path: "{{ edx_service_home }}/{{ item }}"
    state: directory
    owner: "{{ edx_service_name }}"
    group: "{{ common_web_group }}"
  with_items:
    - ""
    - "venvs"
    - "data"
    - "staticfiles"
  tags:
    - install
    - install:base

- name: Create /edx/var and /edx/etc dirs
  file:
    path: "{{ item }}/{{ edx_service_name }}"
    state: directory
    owner: "{{ edx_service_user }}"
    group: "{{ common_web_group }}"
    mode: "0755"
  with_items:
    - "/edx/var"
    - "/edx/etc"
  tags:
    - install
    - install:base

- name: Create edx_service log dir
  file:
    path: "{{ item }}"
    state: directory
    owner: "syslog"
    group: "syslog"
  with_items:
    - "{{ COMMON_LOG_DIR }}/{{ edx_service_name }}"
  tags:
    - install
    - install:base

- name: Write out app config file
  template:
    src: "config.yml.j2"
    dest: "{{ COMMON_CFG_DIR  }}/{{ edx_service_name }}.yml"
    mode: "0644"
  when: edx_service_config is defined
  tags:
    - install
    - install:configuration
    - install:app-configuration
  
- name: Install a bunch of system packages on which edx_service relies
  apt:
    name: "{{ item }}"
    state: present
    update_cache: true
    cache_valid_time: 3600
  with_items: "{{ edx_service_packages.debian }}"
  when: ansible_distribution in common_debian_variants
  tags:
    - install
    - install:system-requirements

- name: Install a bunch of system packages on which edx_service relies
  yum:
    name: "{{ item }}"
    state: present
  with_items: "{{ edx_service_packages.redhat }}"
  when: ansible_distribution in common_redhat_variants
  tags:
    - install
    - install:system-requirements

- name: Get instance information
  action: ec2_facts
  tags:
    - to-remove

- name: Tag instance
  ec2_tag_local:
  args:
    resource: "{{ ansible_ec2_instance_id }}"
    region: "{{ ansible_ec2_placement_region }}"
    tags:
      - Name: "version:{{ edx_service_name }}"
        Value: "{{ item.0.DOMAIN }}/{{ item.0.PATH }}/{{ item.0.REPO }} {{ item.1.after |truncate(7,True,'') }}"
  when: item.1.after is defined and COMMON_TAG_EC2_INSTANCE and edx_service_repos is defined
  with_together: 
    - "{{ edx_service_repos }}"
    - "{{ code_checkout.results }}"
  tags:
    - to-remove

#TODO: restart supervisor- depends on supervisor being refactored into this role