docker psĬONTAINER_ID IMAGE COMMAND CREATED STATUS PORTS NAMESĬf74b6fce535 foo_image "node app.js" X min ago Up X min 3000/tcp foo_app The container_id is located in the first column. If you’re not sure which id is related to which container, you can run the docker ps command to list all running containers. The here is the id of the running container. You find these JSON log files in the /var/lib/docker/containers/ directory on a Linux Docker host. Each log file contains information about only one container and is in JSON format. These logs are emitted from output streams, annotated with the log origin, either stdout or stderr, and a timestamp. There are several different log drivers you can use except for the default json-file, like syslog, journald, fluentd, or logagent. Here’s a more elaborate explanation from the Docker docs. What’s a logging driver?Ī logging driver is a mechanism for getting info from your running containers. Containers are stateless, and the logs are stored on the Docker host in JSON files by default. You see, by default, Docker containers emit logs to the stdout and stderr output streams. Where Are Docker Container Logs Stored by Default? Let me elaborate on why with the long answer below. The short answer, that will satisfy your needs in the vast majority of cases, is: /var/lib/docker/containers//-json.logįrom here you need to ship logs to a central location, and enable log rotation for your Docker containers. Where are Docker container logs stored? There’s a short answer, and a long answer. Storing Docker Container Logs in a Central Location Using a Log Shipper.Debugging Docker Issues with Container Logs.Where Are Docker Container Logs Stored by Default?.
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