Adding appender to logging

Kafka Connect
2

I figured it out. Here is the solution.

The connect-log4j.properties file is:

log4j.rootLogger=INFO, stdout

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern =[%d] %p %X{dbz.connectorType}|%X{dbz.connectorName}|%X{dbz.connectorContext} %m (%c)%n


# loggers from CONNECT_LOG4J_LOGGERS env variable
log4j.logger.org.apache.kafka.connect=FATAL

The dockerfile is:

FROM confluentinc/cp-kafka-connect:7.9.0

COPY plugins /usr/share/java
COPY logging/connect-log4j.properties /etc/kafka/overrides/connect-log4j.properties


USER root

RUN yum install -y unzip

RUN yum update glibc-common -y

ARG NewRelic=https://download.newrelic.com/newrelic/java-agent/newrelic-agent/current/newrelic-java.zip
RUN curl -O $NewRelic
RUN unzip -o newrelic-java.zip -d /opt
USER appuser


#add this line in to increase log level
ENV  CONNECT_LOG4J_LOGGERS="org.apache.kafka.connect=FATAL"
ENV  KAFKA_LOG4J_OPTS="-Dlog4j.configuration=file:/etc/kafka/overrides/connect-log4j.properties"

Basically plugging in the properties file to the environment variable KAFKA_LOG4J_OPTS

Thanks!

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