Add Mariadb service

There's a job that bootstraps the database and exits. This job
creates the database in a hostPath (we need to fix this later
to a persistent volume). The Pod restarts takes care of
the wait for the database to be created. If necessary we can
add code to wait for the job to finish before starting the pod

Implements blueprint openstack-services
Change-Id: Ib1ef158173d9c87d8355268f26ddbc033630cb24

bootstrap/mariadb/mariadb-job.yml.j2

@@ -0,0 +1,35 @@
+apiVersion: batch/v1
+kind: Job
+spec:
+  template:
+    metadata:
+      name: mariadb-generate
+    spec:
+      hostNetwork: True
+      containers:
+        - image: "{{ mariadb_image_full }}"
+          name: mariadb
+          volumeMounts:
+            - mountPath: {{ container_config_directory }}
+              name: mariadb-config
+            - mountPath: /var/lib/mysql
+              name: mariadb-persistent-storage
+            - mountPath: /var/log/kolla/
+              name: kolla-logs
+          env:
+            - name: KOLLA_BOOTSTRAP
+              value: ""
+            - name: KOLLA_CONFIG_STRATEGY
+              value: {{ config_strategy }}
+      volumes:
+        - name: mariadb-config
+          configMap:
+            name: mariadb-configmap
+        - name: mariadb-persistent-storage
+          hostPath:
+            path: /var/lib/kolla/mariadb
+        - name: kolla-logs
+          emptyDir: {}
+      restartPolicy: OnFailure
+metadata:
+  name: mariadb-bootstrap

services/mariadb/mariadb-pod.yml.j2

@@ -0,0 +1,28 @@
+apiVersion: v1
+kind: Pod
+spec:
+  hostNetwork: True
+  containers:
+    - image: "{{ mariadb_image_full }}"
+      name: mariadb
+      volumeMounts:
+        - mountPath: {{ container_config_directory }}
+          name: mariadb-config
+        - mountPath: /var/lib/mysql
+          name: mariadb-persistent-storage
+        - mountPath: /var/log/kolla/
+          name: kolla-logs
+      env:
+        - name: KOLLA_CONFIG_STRATEGY
+          value: {{ config_strategy }}
+  volumes:
+    - name: mariadb-config
+      configMap:
+        name: mariadb-configmap
+    - name: mariadb-persistent-storage
+      hostPath:
+        path: /var/lib/kolla/mariadb
+    - name: kolla-logs
+      emptyDir: {}
+metadata:
+   name: mariadb

services/mariadb/mariadb-service.yml.j2

@@ -0,0 +1,9 @@
+apiVersion: v1
+kind: Service
+spec:
+  ports:
+    - port: {{ mariadb_port }}
+  selector:
+    name: mariadb
+metadata:
+   name: mariadb