How to view logs from docker

The methods to view Docker logs include: using the docker logs command, for example: docker logs CONTAINER_NAME Use the docker exec command to run /bin/sh and view the log file, for example: docker exec -it CONTAINER_NAME /bin/sh ; cat /var/log/CONTAINER_NAME.log Use the docker-compose logs command of Docker Compose, for example: docker-compose -f docker-com

How to view Docker logs

Docker logs are an invaluable resource for diagnosing and solving container problems. Here are three ways to view Docker logs:

1. Use docker logs command

The docker logs command is the easiest way to view logs. It outputs the standard output and error stream of the specified container.

 <code>docker logs CONTAINER_NAME</code>

For example, to view the logs of a container named "my-container", you can use the following command:

 <code>docker logs my-container</code>

2. Use docker exec command

The docker exec command allows you to run commands in a container. You can use this command to view log files.

 <code>docker exec -it CONTAINER_NAME /bin/sh</code>

You can then view the log file using the following command:

 <code>cat /var/log/CONTAINER_NAME.log</code>

For example, to view the log file of a container named "my-container", you can use the following command:

 <code>docker exec -it my-container /bin/sh cat /var/log/my-container.log</code>

3. Use Docker Compose

If you use Docker Compose to manage your application, you can use the <code>docker-compose logs</code> command to view the logs. This command will output logs for all services.

 <code>docker-compose logs</code>

For example, to view the logs of a Docker Compose application named "my-app", you can use the following command:

 <code>docker-compose -f docker-compose.yml logs</code>

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