CODEWITHSUNDEEP
docker
t6nand
t6nand

Reputation: 780

Accessing logs folder of running docker container

Suppose my application generate logs in a folder /app/logs/ . For convenience multiple log files are generated (based on different runtime contexts) for better monitoring. If I containerize my application using Docker, how can I access my logs generated at runtime in logs folder?

My application doesn't have a nohup type of logging and certainly 

docker logs -f <container-id>

doesn't seem to work.

Upvotes: 0

Views: 922

Answers (1)

Matt
Matt

Reputation: 74879

docker logs will only show the stderr and stdout from the process you are running.

Containers work well with a centralised logging system as it fits with their ephemeral/scalable design. Use syslog, loggly, graylog, logstash, fluentd etc to push your docker logs over the network to a server. Access all your app and context logs in one location.

If that seems like too much...

You can access the logs directly from the host

docker exec <container-id> cat /apps/logs/context.log

You can log to a shared data volume

docker volume create logs
docker run -v logs:/apps/logs <image>

You can log to a host directory

docker run -v /apps/logs:/apps/logs <image>

Upvotes: 2

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