Add logging configuration to docker image

Story: 2005462
Task: 30536

Change-Id: I6cd41b442b052ef6df118ada6abaa4cc45795d49

docker/Dockerfile

@@ -16,6 +16,10 @@ FROM monasca/base:$BASE_TAG
 ENV \
     DEBUG=false \
     VERBOSE=true \
+    LOG_LEVEL=WARNING \
+    LOG_LEVEL_KAFKA=WARNING \
+    LOG_LEVEL_INFLUXDB=WARNING \
+    LOG_LEVEL_CASSANDRA=WARNING \
     ZOOKEEPER_URI=zookeeper:2181 \
     KAFKA_URI=kafka:9092 \
     KAFKA_ALARM_HISTORY_BATCH_SIZE=1000 \
@@ -40,7 +44,7 @@ ENV \
     STAY_ALIVE_ON_FAILURE="false"
 
 # Copy all necessary files to proper locations.
-COPY monasca_persister.conf.j2 /etc/monasca/
+COPY monasca-persister.conf.j2 persister-logging.conf.j2 /etc/monasca/
 
 # Run here all additional steps your service need post installation.
 # Stay with only one `RUN` and use `&& \` for next steps to don't create

docker/README.rst

@@ -71,6 +71,10 @@ CASSANDRA_PASSWORD              password                        Cassandra passwo
 CASSANDRA_KEY_SPACE             monasca                         Keyspace name where metrics are stored
 CASSANDRA_CONNECTION_TIMEOUT    5                               Cassandra timeout in seconds
 CASSANDRA_RETENTION_POLICY      45                              Data retention period in days
+LOG_LEVEL                       WARNING                         Log level for monasca persister
+LOG_LEVEL_KAFKA                 WARNING                         Log level for communication with Kafka
+LOG_LEVEL_INFLUXDB              WARNING                         Log level for communication with InfluxDB
+LOG_LEVEL_CASSANDRA             WARNING                         Log level for communication with Cassandra
 STAY_ALIVE_ON_FAILURE           false                           If true, container runs 2 hours even start fails
 =============================== =============================== ================================================
 

docker/monasca-persister.conf.j2

@@ -1,8 +1,7 @@
 [DEFAULT]
-#log_file = monasca_persister.log
-#log_dir = /var/log/monasca_persister
+# Provide logging configuration
+log_config_append = /etc/monasca/persister-logging.conf
 
-# Default log level is WARNING
 # Show debugging output in logs (sets DEBUG log level output)
 debug = {{ DEBUG }}
 # Show more verbose log output (sets INFO log level output) if debug is False

docker/persister-logging.conf.j2

@@ -0,0 +1,43 @@
+[loggers]
+keys = root, kafka, influxdb, cassandra
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = {{ LOG_LEVEL }}
+formatter = default
+handlers = console
+
+[logger_kafka]
+qualname = kafka
+level = {{ LOG_LEVEL_KAFKA }}
+formatter = default
+handlers = console
+propagate = 0
+
+[logger_influxdb]
+qualname = influxdb
+level = {{ LOG_LEVEL_INFLUXDB }}
+formatter = default
+handlers = console
+propagate = 0
+
+[logger_cassandra]
+qualname = cassandra
+level = {{ LOG_LEVEL_CASSANDRA }}
+formatter = default
+handlers = console
+propagate = 0
+
+[handler_console]
+class = logging.StreamHandler
+args = (sys.stderr,)
+level = DEBUG
+formatter = generic
+
+[formatter_generic]
+format = %(asctime)s %(levelname)s [%(name)s][%(threadName)s] %(message)s

docker/start.sh

@@ -25,12 +25,13 @@ python3 /kafka_wait_for_topics.py
 # Template all config files before start, it will use env variables.
 # Read usage examples: https://pypi.org/project/Templer/
 echo "Start script: creating config files from templates"
-templer -v -f /etc/monasca/monasca_persister.conf.j2 /etc/monasca/monasca_persister.conf
+templer -v -f /etc/monasca/monasca-persister.conf.j2 /etc/monasca/monasca-persister.conf
+templer -v -f /etc/monasca/persister-logging.conf.j2 /etc/monasca/persister-logging.conf
 
 # Start our service.
 # gunicorn --args
 echo "Start script: starting container"
-monasca-persister --config-file /etc/monasca/monasca_persister.conf
+monasca-persister --config-file /etc/monasca/monasca-persister.conf
 
 # Allow server to stay alive in case of failure for 2 hours for debugging.
 RESULT=$?