Make Heka collect MariaDB logs

Partially implements: blueprint heka
Change-Id: Ib5e740683cee296bcac69228f525594850d62a27

ansible/roles/common/tasks/config.yml

@@ -32,3 +32,4 @@
     - "haproxy"
     - "rabbitmq"
     - "openstack"
+    - "mariadb"

ansible/roles/common/templates/heka-mariadb.toml.j2

+[mariadb_log_decoder]
+type = "SandboxDecoder"
+filename = "lua_decoders/os_mysql_log.lua"
+
+[mariadb_logstreamer_input]
+type = "LogstreamerInput"
+decoder = "mariadb_log_decoder"
+log_directory = "/var/log/kolla"
+file_match = 'mariadb/mariadb\.log'
+differentiator = ['mariadb']

ansible/roles/common/templates/heka.json.j2

@@ -24,6 +24,12 @@
             "dest": "/etc/heka/heka-openstack.toml",
             "owner": "heka",
             "perm": "0600"
+        },
+        {
+            "source": "{{ container_config_directory }}/heka-mariadb.toml",
+            "dest": "/etc/heka/heka-mariadb.toml",
+            "owner": "heka",
+            "perm": "0600"
         }
     ]
 }

ansible/roles/mariadb/tasks/bootstrap.yml

@@ -51,6 +51,7 @@
     volumes:
       - "{{ node_config_directory }}/mariadb/:{{ container_config_directory }}/:ro"
       - "mariadb:/var/lib/mysql"
+      - "kolla_logs:/var/log/kolla/"
   when:
     - delegate_host == 'None'
     - inventory_hostname == groups['mariadb'][0]

ansible/roles/mariadb/tasks/start.yml

@@ -8,6 +8,7 @@
     volumes:
       - "{{ node_config_directory }}/mariadb/:{{ container_config_directory }}/:ro"
       - "mariadb:/var/lib/mysql"
+      - "kolla_logs:/var/log/kolla/"
   when: delegate_host != 'None' or
         ( groups['mariadb'] | length ) == 1 or
         ( delegate_host == 'None' and inventory_hostname != groups['mariadb'][0] )

ansible/roles/mariadb/templates/galera.cnf.j2

@@ -3,6 +3,8 @@
 bind-address={{ hostvars[inventory_hostname]['ansible_' + api_interface]['ipv4']['address'] }}
 port={{ mariadb_port }}
 
+log-error=/var/log/kolla/mariadb/mariadb.log
+
 binlog_format=ROW
 default-storage-engine=innodb
 innodb_autoinc_lock_mode=2

docker/mariadb/extend_start.sh

@@ -23,6 +23,14 @@ if [[ $(stat -c %U:%G /var/lib/mysql) != "mysql:mysql" ]]; then
     sudo chown mysql: /var/lib/mysql
 fi
 
+# Create log directory, with appropriate permissions
+if [[ ! -d "/var/log/kolla/mariadb" ]]; then
+    mkdir -p /var/log/kolla/mariadb
+fi
+if [[ $(stat -c %a /var/log/kolla/mariadb) != "755" ]]; then
+    chmod 755 /var/log/kolla/mariadb
+fi
+
 # This catches all cases of the BOOTSTRAP variable being set, including empty
 if [[ "${!KOLLA_BOOTSTRAP[@]}" ]] && [[ ! -e /var/lib/mysql/cluster.exists ]]; then
     ARGS="--wsrep-new-cluster"