docker container

• docker container run -p 80:80 --name webhost -d nginx -p => --publish: Remember publishing ports is always in HOST:CONTAINE format.

• docker container port webhost(Quick port check)

• docker container inspect --format '{{ .NetworkSettings.IPAddress }}' webhost --format => A common option for formattiong the output of commands using Go templates

• docker network ls(show networks)

• docker network inspect(inspect a network)

• docker network create --drive(create a network)

• docker network connect(Attach a network to container)

• docker network disconnect(Detach a network from container)

• DNS

  • Containere

• Containers are usually immutable and ephemeral

  • immutable infrastructure: only re-deploy containers, never change
  • this is ideal scenario, but what about databases, or unique data ?
  • docker gives us features to ensure these separation of concerns
  • this is known as persistent data
  • two ways: volumes and bind mounts
  • volumes: make special location outside of container UFS
  • bind mounts: link container path to host path