Merge pull request #304 from edx/jbau/debug/role

add a ansible_debug role that just dumps vars into json

playbooks/roles/ansible_debug/tasks/main.yml

+---
+- name: Dump all vars to json
+  template: src=dumpall.json.j2 dest=/tmp/ansible.all.json mode=0600
+  tags:
+  - dumpall
+  - debug
+
+- name: Dump lms auth|env file
+  template: src=../../edxapp/templates/lms.{{item}}.json.j2 dest=/tmp/lms.{{item}}.json mode=0600
+  with_items:
+    - env
+    - auth
+  when: "'lms' in service_variants_enabled"
+  tags:
+  - dumpall
+  - debug
+
+- name: Dump lms-preview auth|env file
+  template: src=../../edxapp/templates/lms-preview.{{item}}.json.j2 dest=/tmp/lms-preview.{{item}}.json mode=0600
+  with_items:
+    - env
+    - auth
+  when: "'lms-preview' in service_variants_enabled"
+  tags:
+  - dumpall
+  - debug
+
+- name: Dump cms auth|env file
+  template: src=../../edxapp/templates/cms.{{item}}.json.j2 dest=/tmp/cms.{{item}}.json mode=0600
+  with_items:
+    - env
+    - auth
+  when: "'cms' in service_variants_enabled"
+  tags:
+  - dumpall
+  - debug
+
+- name: Dump all vars to yaml
+  template: src=dumpall.yml.j2 dest=/tmp/ansible.all.yml mode=0600
+  tags:
+  - dumpall
+  - debug
+
+- name: fetch remote files
+  # fetch is fail-safe for remote files that don't exist
+  # setting mode is not an option
+  fetch: src=/tmp/{{item}} dest=/tmp/{{ansible_hostname}}-{{item}} flat=True
+  with_items:
+    - ansible.all.json
+    - ansible.all.yml
+    - lms.env.json
+    - lms.auth.json
+    - lms-preview.env.json
+    - lms-preview.auth.json
+    - cms.env.json
+    - cms.auth.json
+  tags:
+  - dumpall
+  - debug

playbooks/roles/ansible_debug/templates/dumpall.json.j2

+Module Variables ("vars"):
+--------------------------------
+{{ vars | to_nice_json }}
+
+Environment Variables ("environment"):
+--------------------------------
+{{ environment | to_nice_json }}
+
+GROUP NAMES Variables ("group_names"):
+--------------------------------
+{{ group_names | to_nice_json }}
+
+GROUPS Variables ("groups"):
+--------------------------------
+{{ groups | to_nice_json }}
+
+HOST Variables ("hostvars"):
+--------------------------------
+{{ hostvars | to_nice_json }}
+
+{% if lms_env_config %}
+LMS env variables:
+---------------
+{{ lms_env_config | to_nice_json }}
+{% endif %}
+
+{% if lms_auth_config %}
+LMS auth variables:
+---------------
+{{ lms_auth_config | to_nice_json }}
+{% endif %}
+
+{% if lms_preview_env_config %}
+Preview env variables:
+---------------
+{{ lms_preview_env_config | to_nice_json }}
+{% endif %}
+
+{% if lms_preview_auth_config %}
+Preview auth variables:
+---------------
+{{ lms_preview_auth_config | to_nice_json }}
+{% endif %}
+
+{% if cms_env_config %}
+CMS env variables:
+---------------
+{{ cms_env_config | to_nice_json }}
+{% endif %}
+
+{% if cms_auth_config %}
+CMS auth variables:
+---------------
+{{ cms_auth_config | to_nice_json }}
+{% endif %}

playbooks/roles/ansible_debug/templates/dumpall.yml.j2

+Module Variables ("vars"):
+--------------------------------
+{{ vars | to_nice_yaml }}
+
+Environment Variables ("environment"):
+--------------------------------
+{{ environment | to_nice_yaml }}
+
+GROUP NAMES Variables ("group_names"):
+--------------------------------
+{{ group_names | to_nice_yaml }}
+
+GROUPS Variables ("groups"):
+--------------------------------
+{{ groups | to_nice_yaml }}
+
+{% if lms_env_config %}
+LMS env variables:
+---------------
+{{ lms_env_config | to_nice_yaml }}
+{% endif %}
+
+{% if lms_auth_config %}
+LMS auth variables:
+---------------
+{{ lms_auth_config | to_nice_yaml }}
+{% endif %}
+
+{% if lms_preview_env_config %}
+Preview env variables:
+---------------
+{{ lms_preview_env_config | to_nice_yaml }}
+{% endif %}
+
+{% if lms_preview_auth_config %}
+Preview auth variables:
+---------------
+{{ lms_preview_auth_config | to_nice_yaml }}
+{% endif %}
+
+{% if cms_env_config %}
+CMS env variables:
+---------------
+{{ cms_env_config | to_nice_yaml }}
+{% endif %}
+
+{% if cms_auth_config %}
+CMS auth variables:
+---------------
+{{ cms_auth_config | to_nice_yaml }}
+{% endif %}