Oft used docker cmds

docker.md

Docker Basics

• docker ps Shows you running containers (note the last column name)
• docker logs <name> Shows you logs from the running container
• docker logs -f <name> Tails logs from a running container
• docker build -t <image_tag_name> . Builds the current dir as a docker image
• docker run <image> creates a container running the specified image
  • --rm remove the container when it exits (good for dev)
  • -e use to set environment variables in the conatiner - one assignment per flag
  • --name set a name for the running container
  • -p forward a host ports traffic to the container port <host>:<container>, e.g., 5000:5000
• docker run -it <image> <command> start a container running the specified image and then interactively run the command inside the container.
  • used for debugging
  • docker run -it <image> /bin/bash for a shell on a non running container. i.e., it won't run the CMD specified in the Dockerfile
• docker exec <container> <command> run a command in a running container
• docker stop -t1 <container> Stop a running container
• docker restart <container restarts the container with the previous arguments