Provide support for nova dev mode in kolla

Add a possibility to mount sources as volumes to containers,
in "more than documentation" way. That will let us to use kolla
as a replacement for devstack.

Partially implements: blueprint mount-sources
Co-Authored-By: zhulingjie <easyzlj@gmail.com>

Change-Id: I10677e5ad22f2107a0657feeeaf32287ab9f8e28

ansible/roles/nova/defaults/main.yml

@@ -21,6 +21,7 @@ nova_services:
       - "{{ nova_instance_datadir_volume }}:/var/lib/nova/"
       - "{% if enable_cinder_backend_nfs | bool %}/var/lib/nova/mnt:/var/lib/nova/mnt:shared{% endif %}"
       - "nova_libvirt_qemu:/etc/libvirt/qemu"
+      - "{{ kolla_dev_repos_directory ~ '/nova/nova:/var/lib/kolla/venv/lib/python2.7/site-packages/nova' if nova_dev_mode | bool else '' }}"
     dimensions: "{{ nova_libvirt_dimensions }}"
   nova-ssh:
     container_name: "nova_ssh"
@@ -33,6 +34,7 @@ nova_services:
       - "kolla_logs:/var/log/kolla"
       - "{{ nova_instance_datadir_volume }}:/var/lib/nova"
       - "{% if enable_cinder_backend_nfs | bool %}/var/lib/nova/mnt:/var/lib/nova/mnt:shared{% endif %}"
+      - "{{ kolla_dev_repos_directory ~ '/nova/nova:/var/lib/kolla/venv/lib/python2.7/site-packages/nova' if nova_dev_mode | bool else '' }}"
     dimensions: "{{ nova_ssh_dimensions }}"
   placement-api:
     container_name: "placement_api"
@@ -43,6 +45,7 @@ nova_services:
       - "{{ node_config_directory }}/placement-api/:{{ container_config_directory }}/:ro"
       - "/etc/localtime:/etc/localtime:ro"
       - "kolla_logs:/var/log/kolla/"
+      - "{{ kolla_dev_repos_directory ~ '/nova/nova:/var/lib/kolla/venv/lib/python2.7/site-packages/nova' if nova_dev_mode | bool else '' }}"
     dimensions: "{{ placement_api_dimensions }}"
   nova-api:
     container_name: "nova_api"
@@ -55,6 +58,7 @@ nova_services:
       - "/etc/localtime:/etc/localtime:ro"
       - "/lib/modules:/lib/modules:ro"
       - "kolla_logs:/var/log/kolla/"
+      - "{{ kolla_dev_repos_directory ~ '/nova/nova:/var/lib/kolla/venv/lib/python2.7/site-packages/nova' if nova_dev_mode | bool else '' }}"
     dimensions: "{{ nova_api_dimensions }}"
   nova-consoleauth:
     container_name: "nova_consoleauth"
@@ -65,6 +69,7 @@ nova_services:
       - "{{ node_config_directory }}/nova-consoleauth/:{{ container_config_directory }}/:ro"
       - "/etc/localtime:/etc/localtime:ro"
       - "kolla_logs:/var/log/kolla/"
+      - "{{ kolla_dev_repos_directory ~ '/nova/nova:/var/lib/kolla/venv/lib/python2.7/site-packages/nova' if nova_dev_mode | bool else '' }}"
     dimensions: "{{ nova_consoleauth_dimensions }}"
   nova-novncproxy:
     container_name: "nova_novncproxy"
@@ -75,6 +80,7 @@ nova_services:
       - "{{ node_config_directory }}/nova-novncproxy/:{{ container_config_directory }}/:ro"
       - "/etc/localtime:/etc/localtime:ro"
       - "kolla_logs:/var/log/kolla/"
+      - "{{ kolla_dev_repos_directory ~ '/nova/nova:/var/lib/kolla/venv/lib/python2.7/site-packages/nova' if nova_dev_mode | bool else '' }}"
     dimensions: "{{ nova_novncproxy_dimensions }}"
   nova-scheduler:
     container_name: "nova_scheduler"
@@ -85,6 +91,7 @@ nova_services:
       - "{{ node_config_directory }}/nova-scheduler/:{{ container_config_directory }}/:ro"
       - "/etc/localtime:/etc/localtime:ro"
       - "kolla_logs:/var/log/kolla/"
+      - "{{ kolla_dev_repos_directory ~ '/nova/nova:/var/lib/kolla/venv/lib/python2.7/site-packages/nova' if nova_dev_mode | bool else '' }}"
     dimensions: "{{ nova_scheduler_dimensions }}"
   nova-spicehtml5proxy:
     container_name: "nova_spicehtml5proxy"
@@ -95,6 +102,7 @@ nova_services:
       - "{{ node_config_directory }}/nova-spicehtml5proxy/:{{ container_config_directory }}/:ro"
       - "/etc/localtime:/etc/localtime:ro"
       - "kolla_logs:/var/log/kolla/"
+      - "{{ kolla_dev_repos_directory ~ '/nova/nova:/var/lib/kolla/venv/lib/python2.7/site-packages/nova' if nova_dev_mode | bool else '' }}"
     dimensions: "{{ nova_spicehtml5proxy_dimensions }}"
   nova-serialproxy:
     container_name: "nova_serialproxy"
@@ -105,6 +113,7 @@ nova_services:
       - "{{ node_config_directory }}/nova-serialproxy/:{{ container_config_directory }}/:ro"
       - "/etc/localtime:/etc/localtime:ro"
       - "kolla_logs:/var/log/kolla/"
+      - "{{ kolla_dev_repos_directory ~ '/nova/nova:/var/lib/kolla/venv/lib/python2.7/site-packages/nova' if nova_dev_mode | bool else '' }}"
     dimensions: "{{ nova_serialproxy_dimensions }}"
   nova-conductor:
     container_name: "nova_conductor"
@@ -115,6 +124,7 @@ nova_services:
       - "{{ node_config_directory }}/nova-conductor/:{{ container_config_directory }}/:ro"
       - "/etc/localtime:/etc/localtime:ro"
       - "kolla_logs:/var/log/kolla/"
+      - "{{ kolla_dev_repos_directory ~ '/nova/nova:/var/lib/kolla/venv/lib/python2.7/site-packages/nova' if nova_dev_mode | bool else '' }}"
     dimensions: "{{ nova_conductor_dimensions }}"
   nova-compute:
     container_name: "nova_compute"
@@ -136,6 +146,7 @@ nova_services:
       - "libvirtd:/var/lib/libvirt"
       - "{{ nova_instance_datadir_volume }}:/var/lib/nova/"
       - "{% if enable_cinder_backend_nfs | bool %}/var/lib/nova/mnt:/var/lib/nova/mnt:shared{% endif %}"
+      - "{{ kolla_dev_repos_directory ~ '/nova/nova:/var/lib/kolla/venv/lib/python2.7/site-packages/nova' if nova_dev_mode | bool else '' }}"
     dimensions: "{{ nova_compute_dimensions }}"
   nova-compute-ironic:
     container_name: "nova_compute_ironic"
@@ -146,6 +157,7 @@ nova_services:
       - "{{ node_config_directory }}/nova-compute-ironic/:{{ container_config_directory }}/:ro"
       - "/etc/localtime:/etc/localtime:ro"
       - "kolla_logs:/var/log/kolla/"
+      - "{{ kolla_dev_repos_directory ~ '/nova/nova:/var/lib/kolla/venv/lib/python2.7/site-packages/nova' if nova_dev_mode | bool else '' }}"
     dimensions: "{{ nova_compute_ironic_dimensions }}"
 
 ####################
@@ -298,3 +310,11 @@ nova_enabled_notification_topics: "{{ nova_notification_topics | selectattr('ena
 ####################
 vmware_vcenter_datastore_regex: ".*"
 ovs_bridge: "nsx-managed"
+
+
+####################
+# Kolla
+####################
+nova_git_repository: "{{ kolla_dev_repos_git }}/{{ project_name }}"
+nova_dev_repos_pull: "{{ kolla_dev_repos_pull }}"
+nova_dev_mode: "{{ kolla_dev_mode }}"

ansible/roles/nova/handlers/main.yml

@@ -156,7 +156,6 @@
       or policy_overwriting.changed | bool
       or nova_conductor_container.changed | bool
 
-
 - name: Restart nova-consoleauth container
   vars:
     service_name: "nova-consoleauth"

ansible/roles/nova/tasks/bootstrap_service.yml

@@ -15,6 +15,6 @@
       BOOTSTRAP:
     name: "bootstrap_nova"
     restart_policy: "never"
-    volumes: "{{ nova_api.volumes }}"
+    volumes: "{{ nova_api.volumes|reject('equalto', '')|list }}"
   run_once: True
   delegate_to: "{{ groups[nova_api.group][0] }}"

ansible/roles/nova/tasks/clone.yml

@@ -0,0 +1,6 @@
+---
+- name: Cloning nova source repository for development
+  git:
+    repo: "{{ nova_git_repository }}"
+    dest: "{{ kolla_dev_repos_directory }}/{{ project_name }}"
+    update: "{{ nova_dev_repos_pull }}"

ansible/roles/nova/tasks/deploy.yml

@@ -23,6 +23,9 @@
     - inventory_hostname in groups['compute']
     - nova_compute_virt_type == "xenapi"
 
+- include_tasks: clone.yml
+  when: nova_dev_mode | bool
+
 - include_tasks: config.yml
 
 - include_tasks: config-nova-fake.yml