Docker commands - jrcloudsolutions/tidbits GitHub Wiki

  • Docker images - -digest
  • Play with Dockerfile Scratch
  • docker container ls -s/--size
  • Put export and install command in the same layer
  • apt-get update && apt-get install -y nginx
  • Interactive built vs Dockerfile automated
  • Instruction
  • docker run -it image_name:tag_name bash <= Test bash shell
  • Container names are randomly generated by the Docker “daemon”.
  • You can identify your container with something more meaningful by assigning your own name using the – name operator in the Docker run command
  • Save your image using the Docker commit command, specifying either the ID or name of the container from you which want to create it:
  • $ docker commit keen_gauss ubuntu_testbed
  • Apply yum update to Dockerfiles
  • Yum update will update the packages on your system, but skip removing obsolete packages