Enable developer mode

This commit adds the ability to install ceilometer without a repo
server. This pattern is lifted from the os_keystone role and allows
us to further develop functional testing for this role.

Change-Id: Id81a0e8d3cd76d589c0710fb960990ade57a7083

defaults/main.yml

@@ -20,6 +20,12 @@ verbose: True
 ## APT Cache options
 cache_timeout: 600
 
+ceilometer_git_repo: https://git.openstack.org/openstack/ceilometer
+ceilometer_git_install_branch: master
+ceilometer_developer_mode: false
+ceilometer_developer_constraints:
+  - "git+{{ ceilometer_git_repo }}@{{ ceilometer_git_install_branch }}#egg=ceilometer"
+
 # Name of the virtual env to deploy into
 ceilometer_venv_tag: untagged
 ceilometer_venv_bin: "/openstack/venvs/ceilometer-{{ ceilometer_venv_tag }}/bin"
@@ -109,6 +115,10 @@ ceilometer_apt_packages:
   - rsync
   - git
 
+# Packages required in developer mode, where packages are built locally
+ceilometer_developer_mode_apt_packages:
+  - libvirt-dev
+
 # ceilometer packages that must be installed before anything else
 ceilometer_requires_pip_packages:
   - virtualenv

meta/main.yml

@@ -31,4 +31,6 @@ galaxy_info:
     - openstack
 dependencies:
   - openstack_openrc
-  - pip_lock_down
+  - role: pip_lock_down
+    when:
+      - not ceilometer_developer_mode | bool

tasks/ceilometer_install.yml

@@ -43,6 +43,43 @@
     - ceilometer-install
     - ceilometer-apt-packages
 
+- name: Install packages required in Developer Mode
+  apt:
+    pkg: "{{ item }}"
+    state: latest
+  register: install_packages
+  until: install_packages|success
+  retries: 5
+  delay: 2
+  with_items: ceilometer_developer_mode_apt_packages
+  when:
+    - ceilometer_developer_mode | bool
+  tags:
+    - ceilometer-install
+    - ceilometer-apt-packages
+
+- name: Create developer mode constraint file
+  copy:
+    dest: "/opt/developer-pip-constraints.txt"
+    content: |
+      {% for item in ceilometer_developer_constraints %}
+      {{ item }}
+      {% endfor %}
+  when:
+    - ceilometer_developer_mode | bool
+  tags:
+    - ceilometer-install
+    - ceilometer-pip-packages
+
+- name: Set constraint file fact for developer mode
+  set_fact:
+    pip_install_options: "{{ pip_install_options|default('') }} --constraint /opt/developer-pip-constraints.txt"
+  when:
+    - ceilometer_developer_mode | bool
+  tags:
+    - ceilometer-install
+    - ceilometer-pip-packages
+
 - name: Install requires pip packages
   pip:
     name: "{{ item }}"
@@ -61,7 +98,9 @@
   stat:
     path: "/var/cache/{{ ceilometer_venv_download_url | basename }}"
     get_md5: False
-  when: ceilometer_venv_enabled | bool
+  when:
+    - not ceilometer_developer_mode | bool
+    - ceilometer_venv_enabled | bool
   register: local_venv_stat
   tags:
     - ceilometer-install
@@ -71,7 +110,9 @@
   uri:
     url: "{{ ceilometer_venv_download_url | replace('tgz', 'checksum') }}"
     return_content: True
-  when: ceilometer_venv_enabled | bool
+  when:
+    - not ceilometer_developer_mode | bool
+    - ceilometer_venv_enabled | bool
   register: remote_venv_checksum
   tags:
     - ceilometer-install
@@ -90,6 +131,7 @@
   ignore_errors: true
   register: get_venv
   when:
+    - not ceilometer_developer_mode | bool
     - ceilometer_venv_enabled | bool
     - (local_venv_stat.stat.exists == False or
         {{ local_venv_stat.stat.checksum is defined and local_venv_stat.stat.checksum != remote_venv_checksum.content | trim }})
@@ -110,6 +152,7 @@
     path: "{{ ceilometer_venv_bin | dirname }}"
     state: absent
   when:
+    - not ceilometer_developer_mode | bool
     - ceilometer_venv_enabled | bool
     - ceilometer_get_venv | changed
   tags:
@@ -121,6 +164,7 @@
     path: "{{ ceilometer_venv_bin | dirname }}"
     state: directory
   when:
+    - not ceilometer_developer_mode | bool
     - ceilometer_venv_enabled | bool
     - ceilometer_get_venv | changed
   tags:
@@ -133,6 +177,7 @@
     dest: "{{ ceilometer_venv_bin | dirname }}"
     copy: "no"
   when:
+    - not ceilometer_developer_mode | bool
     - ceilometer_venv_enabled | bool
     - ceilometer_get_venv | changed
   notify: Restart ceilometer services
@@ -144,6 +189,7 @@
   command: >
     virtualenv-tools --update-path=auto {{ ceilometer_venv_bin | dirname }}
   when:
+    - not ceilometer_developer_mode | bool
     - ceilometer_venv_enabled | bool
     - ceilometer_get_venv | success
   tags:
@@ -164,7 +210,8 @@
   with_items: ceilometer_pip_packages
   when:
     - ceilometer_venv_enabled | bool
-    - ceilometer_get_venv | failed
+    - ceilometer_get_venv | failed or ceilometer_developer_mode | bool
+
   notify: Restart ceilometer services
   tags:
     - ceilometer-install
@@ -180,7 +227,9 @@
   retries: 5
   delay: 2
   with_items: ceilometer_pip_packages
-  when: not ceilometer_venv_enabled | bool
+  when:
+    - not ceilometer_developer_mode | bool
+    - not ceilometer_venv_enabled | bool
   notify: Restart ceilometer services
   tags:
     - ceilometer-install