docker

1. Docker
2. Docker Documentation
3. image: an executable package that includes everything needed to run an application–the code, a runtime, libraries, environment variables, and configuration files
4. container: a runtime instance of an image–what the image becomes in memory when executed (that is, an image with state, or a user process)
5. docker, docker container --help, docker --version, docker version, docker info, docker image ls, docker container ls --all, docker container ls -a -q, docker run hello-world,
6. Dockerfile: defines what goes on in the environment inside your container
7. docker build -t friendlyhello . ,docker run -p 4000:80 friendlyhello, docker container stop 1fa4ab2cf395
8. docker-compose.yml

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