Use one data container for all data volumes

The previous method of using the API image for a data container
worked, but resulted in more data being bindmounted and copied
into the system.  This patch resolves that by essentially using
a distro-type as a FROM in a Dockerfile to generate
distro-type-data.  Further all of the data containers used
throughout ansible are modified to use this new data container.

Change-Id: I8846573d4f2d4b98d4f46c770bfefc6d4c5cd0b5
Partially-Implements: blueprint one-data-container

ansible/roles/cinder/defaults/main.yml

@@ -28,6 +28,10 @@ cinder_api_image: "{{ docker_registry ~ '/' if docker_registry else '' }}{{ dock
 cinder_api_tag: "{{ openstack_release }}"
 cinder_api_image_full: "{{ cinder_api_image }}:{{ cinder_api_tag }}"
 
+cinder_data_image: "{{ docker_registry ~ '/' if docker_registry else '' }}{{ docker_namespace }}/{{ kolla_base_distro }}-{{ kolla_install_type }}-data"
+cinder_data_image_tag: "{{ openstack_release }}"
+cinder_data_image_full: "{{ cinder_data_image }}:{{ cinder_data_image_tag }}"
+
 
 ####################
 # Openstack

ansible/roles/cinder/tasks/bootstrap.yml

@@ -40,8 +40,7 @@
     password: "{{ docker_registry_password }}"
     insecure_registry: "{{ docker_insecure_registry }}"
     name: cinder_data
-    image: "{{ cinder_api_image_full }}"
-    command: "/bin/sleep infinity"
+    image: "{{ cinder_data_image_full }}"
     volumes: "/var/lib/cinder/"
 
 - name: Starting Cinder bootstrap container

ansible/roles/glance/defaults/main.yml

@@ -20,6 +20,10 @@ glance_api_image: "{{ docker_registry ~ '/' if docker_registry else '' }}{{ dock
 glance_api_tag: "{{ openstack_release }}"
 glance_api_image_full: "{{ glance_api_image }}:{{ glance_api_tag }}"
 
+glance_data_image: "{{ docker_registry ~ '/' if docker_registry else '' }}{{ docker_namespace }}/{{ kolla_base_distro }}-{{ kolla_install_type }}-data"
+glance_data_image_tag: "{{ openstack_release }}"
+glance_data_image_full: "{{ glance_data_image }}:{{ glance_data_image_tag }}"
+
 
 ####################
 # Openstack

ansible/roles/glance/tasks/bootstrap.yml

@@ -40,8 +40,7 @@
     password: "{{ docker_registry_password }}"
     insecure_registry: "{{ docker_insecure_registry }}"
     name: glance_data
-    image: "{{ glance_registry_image_full }}"
-    command: "/bin/sleep infinity"
+    image: "{{ glance_data_image_full }}"
     volumes: "/var/lib/glance/"
 
 - name: Starting Glance bootstrap container

ansible/roles/mariadb/defaults/main.yml

@@ -13,3 +13,7 @@ database_cluster_name: "openstack"
 mariadb_image: "{{ docker_registry ~ '/' if docker_registry else '' }}{{ docker_namespace }}/{{ kolla_base_distro }}-{{ kolla_install_type }}-galera"
 mariadb_tag: "{{ openstack_release }}"
 mariadb_image_full: "{{ mariadb_image }}:{{ mariadb_tag }}"
+
+mariadb_data_image: "{{ docker_registry ~ '/' if docker_registry else '' }}{{ docker_namespace }}/{{ kolla_base_distro }}-{{ kolla_install_type }}-data"
+mariadb_data_tag: "{{ openstack_release }}"
+mariadb_data_image_full: "{{ mariadb_data_image }}:{{ mariadb_data_tag }}"

ansible/roles/mariadb/tasks/bootstrap.yml

@@ -49,8 +49,7 @@
     password: "{{ docker_registry_password }}"
     insecure_registry: "{{ docker_insecure_registry }}"
     name: mariadb_data
-    image: "{{ mariadb_image_full }}"
-    command: "/bin/sleep infinity"
+    image: "{{ mariadb_data_image_full }}"
     volumes: "/var/lib/mysql/"
 
 - name: Starting MariaDB bootstrap container

ansible/roles/rabbitmq/defaults/main.yml

@@ -8,6 +8,10 @@ rabbitmq_image: "{{ docker_registry ~ '/' if docker_registry else '' }}{{ docker
 rabbitmq_tag: "{{ openstack_release }}"
 rabbitmq_image_full: "{{ rabbitmq_image }}:{{ rabbitmq_tag }}"
 
+rabbitmq_data_image: "{{ docker_registry ~ '/' if docker_registry else '' }}{{ docker_namespace }}/{{ kolla_base_distro }}-{{ kolla_install_type }}-data"
+rabbitmq_data_tag: "{{ openstack_release }}"
+rabbitmq_data_image_full: "{{ rabbitmq_data_image }}:{{ rabbitmq_data_tag }}"
+
 
 ####################
 # Message-Broker

ansible/roles/rabbitmq/tasks/bootstrap.yml

@@ -20,8 +20,7 @@
     password: "{{ docker_registry_password }}"
     insecure_registry: "{{ docker_insecure_registry }}"
     name: rabbitmq_data
-    image: "{{ rabbitmq_image_full }}"
-    command: "/bin/sleep infinity"
+    image: "{{ rabbitmq_data_image_full }}"
     volumes: "/var/lib/rabbitmq/"
 
 - name: Starting RabbitMQ bootstrap container

docker/centos/binary/data/Dockerfile

@@ -0,0 +1,4 @@
+FROM centos
+MAINTAINER Kolla Project (https://launchpad.net/kolla)
+
+CMD /bin/sleep infinity

docker/centos/binary/data/build

@@ -0,0 +1 @@
+../../../../tools/build-docker-image

docker/centos/binary/galera/Dockerfile

@@ -19,7 +19,8 @@ RUN echo "[mariadb]" > /etc/yum.repos.d/MariaDB.repo && \
       percona-xtrabackup \
       pv \
       tar \
-      expect
+      expect \
+    && rm -rf /var/lib/mysql/*
 
 COPY config-galera.sh /opt/kolla/config/
 COPY config-external.sh /opt/kolla/

docker/centos/binary/rabbitmq/Dockerfile

@@ -5,7 +5,8 @@ RUN yum -y install \
    hostname \
    rabbitmq-server && \
    yum clean all && \
-   /usr/lib/rabbitmq/bin/rabbitmq-plugins enable rabbitmq_management
+   /usr/lib/rabbitmq/bin/rabbitmq-plugins enable rabbitmq_management \
+ && rm -rf /var/lib/rabbitmq/*
 
 COPY config-rabbit.sh config-external.sh /opt/kolla/
 COPY start.sh /

docker/centos/source/data/Dockerfile

@@ -0,0 +1,4 @@
+FROM centos
+MAINTAINER Kolla Project (https://launchpad.net/kolla)
+
+CMD /bin/sleep infinity

docker/centos/source/data/build

@@ -0,0 +1 @@
+../../../../tools/build-docker-image

docker/common/galera/config-galera.sh

@@ -74,13 +74,8 @@ function configure_db {
 }
 
 function populate_db {
-    if [[ $(ls /var/lib/mysql) == "" ]]; then
-        echo "POPULATING NEW DB"
-        mysql_install_db
-        chown -R mysql: /var/lib/mysql
-    else
-        echo "DB ALREADY EXISTS"
-    fi
+    mysql_install_db
+    chown -R mysql: /var/lib/mysql
 }
 
 function prepare_db {

docker/common/rabbitmq/config-rabbit.sh

@@ -2,6 +2,6 @@
 
 function set_rabbitmq_cookie {
     echo "${RABBITMQ_CLUSTER_COOKIE}" > /var/lib/rabbitmq/.erlang.cookie
-    chown rabbitmq: /var/lib/rabbitmq/.erlang.cookie
+    chown -R rabbitmq: /var/lib/rabbitmq
     chmod 400 /var/lib/rabbitmq/.erlang.cookie
 }

docker_templates/data/Dockerfile.j2

@@ -0,0 +1,4 @@
+FROM {{ base_distro }}:{{ base_distro_tag }}
+MAINTAINER Kolla Project (https://launchpad.net/kolla)
+
+CMD /bin/sleep infinity

docker_templates/galera/Dockerfile.j2

@@ -21,12 +21,16 @@ RUN yum install -y http://www.percona.com/redir/downloads/percona-release/redhat
         percona-xtrabackup \
         pv \
         tar \
-        expect
+        expect \
+    && rm -rf /var/lib/mysql/*
 
 {% elif base_distro in ['ubuntu', 'debian'] %}
 
 RUN ["/bin/false"]
 
+# TODO(sdake) when ubuntu support is implemented we will need a line
+#     && rm -rf /var/lib/mysql/
+
 {% endif %}
 
 COPY config-galera.sh /opt/kolla/config/

docker_templates/rabbitmq/Dockerfile.j2

@@ -6,14 +6,16 @@ MAINTAINER Kolla Project (https://launchpad.net/kolla)
 RUN yum -y install \
         hostname \
         rabbitmq-server \
-    && yum clean all
+    && yum clean all \
+    && rm -rf /var/lib/rabbitmq/*
 
 {% elif base_distro in ['ubuntu', 'debian'] %}
 
 RUN apt-get install -y --no-install-recommends \
         hostname \
         rabbitmq-server \
-    && apt-get clean
+    && apt-get clean \
+    && rm -rf /var/lib/rabbitmq/*
 
 {% endif %}
 

tools/init-runonce

@@ -37,7 +37,7 @@ if ! [ -f "$IMAGE" ]; then
     curl -L -o ./$IMAGE $IMAGE_URL/$IMAGE
 fi
 echo Creating glance image.
-glance image-create --name cirros --progress --disk-format qcow2 --container-format bare --visibility public --progress --file ./$IMAGE
+glance image-create --name cirros --progress --disk-format qcow2 --container-format bare --progress --file ./$IMAGE
 
 if [[ "${NETWORK_MANAGER}" == "nova" ]] ; then
     echo Configuring nova networking.