Added cron container, for logs rotating

Closes-Bug: 1615598
Change-Id: I9ffaf4c2429f80821e5efbabd4d2a70ed2650d35

docker/cron/Dockerfile.j2

@@ -0,0 +1,8 @@
+FROM {{ namespace }}/base-tools:{{ tag }}
+MAINTAINER {{ maintainer }}
+
+ENV DEBIAN_FRONTEND noninteractive
+RUN apt-get -y install --no-install-recommends \
+        cron \
+        logrotate \
+    && apt-get clean

service/cron.yaml

@@ -0,0 +1,38 @@
+service:
+  name: cron
+  daemonset: true
+  containers:
+    - name: cron
+      image: cron
+      probes:
+        readiness: "true"
+        liveness: "true"
+      volumes:
+        - name: mysql-logs
+          path: "/var/log/ccp/mysql"
+          type: host
+          readOnly: False
+        - name: rabbitmq-logs
+          path: "/var/log/ccp/rabbitmq"
+          type: host
+          readOnly: False
+        - name: keystone-logs
+          path: "/var/log/ccp/keystone"
+          type: host
+          readOnly: False
+        - name: horizon-logs
+          path: "/var/log/ccp/horizon"
+          type: host
+          readOnly: False
+      daemon:
+        command: cron -f
+        files:
+          - logrotate.conf
+          - logrotate-services.conf
+files:
+  logrotate.conf:
+    path: /etc/logrotate.conf
+    content: cron-logrotate-global.conf.j2
+  logrotate-services.conf:
+    path: /etc/logrotate.d/logrotate-services.conf
+    content: cron-logrotate-services.conf.j2

service/files/cron-logrotate-global.conf.j2

@@ -0,0 +1,12 @@
+{{ cron_rotate_interval }}
+rotate {{ cron_rotate_days }}
+copytruncate
+compress
+delaycompress
+notifempty
+missingok
+
+minsize {{ cron_rotate_minsize }}
+maxsize {{ cron_rotate_maxsize }}
+
+include /etc/logrotate.d

service/files/cron-logrotate-services.conf.j2

@@ -0,0 +1,12 @@
+{% set services = [
+    'mysql',
+    'rabbitmq',
+    'keystone',
+    'horizon',
+                  ]
+%}
+
+{% for service in services %}
+"/var/log/ccp/{{ service }}/*.log"
+{}
+{% endfor %}

service/files/defaults.yaml

@@ -15,6 +15,10 @@ configs:
   influxdb_port: 8086
   influxdb_user: ""
   snap_log_level: 3
+  cron_rotate_interval: "daily"
+  cron_rotate_days: 6
+  cron_rotate_minsize: "1M"
+  cron_rotate_maxsize: "100M"
 versions:
   influxdb_version: "0.13.0"
   grafana_version: "3.0.3-1463994644"