Add Placement API service

This is a separate REST API stack and data model used to track resource
provider inventories and usages, along with different classes of
resources.

SSL support for placement api will be added in separate CRs.

Change-Id: I8bec585dd5d9eb7f52c1cd50e1e3d44aba6bbe9d

docker/placement-api/Dockerfile.j2

@@ -0,0 +1,12 @@
+FROM {{ image_spec("nova-base") }}
+MAINTAINER {{ maintainer }}
+
+COPY daemon.sh /usr/local/bin/daemon.sh
+
+RUN apt-get install -y --no-install-recommends \
+        apache2  \
+        libapache2-mod-wsgi \
+    && apt-get clean \
+    && chmod 755 /usr/local/bin/daemon.sh \
+    && usermod -aG www-data nova \
+    && echo > /etc/apache2/ports.conf

docker/placement-api/daemon.sh

@@ -0,0 +1,4 @@
+#!/bin/bash -ex
+
+source /etc/apache2/envvars
+/usr/sbin/apache2 -DNO_DETACH

service/files/apache-placement-api.conf.j2

@@ -0,0 +1,25 @@
+Listen {{ placement.port.cont }}
+<VirtualHost *:{{ placement.port.cont }}>
+    WSGIDaemonProcess placement-api processes={{ placement.wsgi.processes }} threads={{ placement.wsgi.threads }} user=nova display-name=%{GROUP} python-path=/var/lib/microservices/venv/lib/python2.7/site-packages
+    WSGIProcessGroup placement-api
+    WSGIScriptAlias / /var/lib/microservices/venv/bin/nova-placement-api
+    WSGIApplicationGroup %{GLOBAL}
+    WSGIPassAuthorization On
+    <IfVersion >= 2.4>
+      ErrorLogFormat "%M"
+    </IfVersion>
+    <Directory /var/lib/microservices/venv/bin>
+        Order allow,deny
+        Allow from all
+        Require all granted
+    </Directory>
+</VirtualHost>
+
+Alias /placement /var/lib/microservices/venv/bin/nova-placement-api
+<Location /placement>
+    SetHandler wsgi-script
+    Options +ExecCGI
+    WSGIProcessGroup placement-api
+    WSGIApplicationGroup %{GLOBAL}
+    WSGIPassAuthorization On
+</Location>

service/files/defaults.yaml

@@ -214,10 +214,24 @@ configs:
           ram: 16384
           disk: 160
           vcpus: 8
+  placement:
+    enabled: true
+    port:
+      cont: 8780
+      ingress: placement
+    wsgi:
+      processes: 4
+      threads: 4
 
 versions:
   novnc_version: "0.6.1"
 
+secret_configs:
+  placement:
+    account:
+      username: placement
+      password: password
+
 sources:
   openstack/nova:
     git_url: https://git.openstack.org/openstack/nova.git

service/files/nova.conf.j2

@@ -196,6 +196,20 @@ driver = {{ searchlight.notification_driver }}
 notify_on_state_change = vm_and_task_state
 {% endif %}
 
+{% if placement.enabled %}
+[placement]
+auth_uri = {{ address("keystone", keystone.public_port, with_scheme=True) }}
+auth_url = {{ address("keystone", keystone.admin_port, with_scheme=True) }}
+auth_type = password
+project_domain_name = {{ service_account.domain }}
+user_domain_name = {{ service_account.domain }}
+project_name = {{ service_account.project }}
+username = {{ placement.account.username }}
+password = {{ placement.account.password }}
+memcached_servers = {{ address("memcached", memcached.port) }}
+os_region_name = RegionOne
+{% endif %}
+
 {# messaging macros templates #}
 {{ oslo_messaging[messaging.backend.notifications]('notifications_config') }}
 {{ oslo_messaging[messaging.backend.rpc]('rpc_config') }}

service/placement-api.yaml

@@ -0,0 +1,59 @@
+dsl_version: 0.4.0
+service:
+  name: placement-api
+  ports:
+    - {{ placement.port }}
+  annotations:
+    service:
+      prometheus.io/probe: "true"
+  containers:
+    - name: placement-api
+      image: placement-api
+      pre:
+        - name: placement-user-create
+          type: single
+          command: openstack user create --domain {{ service_account.domain }} --password {{ placement.account.password }} {{ placement.account.username }}
+          dependencies:
+            - keystone-create-domain
+        - name: placement-role-add
+          dependencies:
+            - keystone-create-project
+            - placement-user-create
+          type: single
+          command: openstack role add --project {{ service_account.project }} --user {{ placement.account.username }} admin
+        - name: placement-service-create
+          dependencies:
+            - keystone
+          type: single
+          command: openstack service create --name nova --description "Placement Service" placement
+        - name: placement-public-endpoint-create
+          dependencies:
+            - placement-service-create
+          type: single
+          command: openstack endpoint create --region RegionOne placement public {{ address('placement-api', placement.port, external=True, with_scheme=True) }}/placement
+        - name: placement-internal-endpoint-create
+          dependencies:
+            - placement-service-create
+          type: single
+          command: openstack endpoint create --region RegionOne placement internal {{ address('placement-api', placement.port, with_scheme=True) }}/placement
+        - name: placement-admin-endpoint-create
+          dependencies:
+            - placement-service-create
+          type: single
+          command: openstack endpoint create --region RegionOne placement admin {{ address('placement-api', placement.port, with_scheme=True) }}/placement
+
+      daemon:
+        command: daemon.sh
+        files:
+          - nova.conf
+          - apache-placement-api.conf
+
+files:
+  nova.conf:
+    path: /etc/nova/nova.conf
+    content: nova.conf.j2
+    perm: "0644"
+  apache-placement-api.conf:
+    path: /etc/apache2/conf-enabled/nova-placement-api.conf
+    content: apache-placement-api.conf.j2
+    perm: "0600"