https://github.com/kibitan/docker_sample
https://github.com/kibitan/docker_sample
Last synced: 2 months ago
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- Host: GitHub
- URL: https://github.com/kibitan/docker_sample
- Owner: kibitan
- Created: 2018-10-23T13:27:27.000Z (over 6 years ago)
- Default Branch: master
- Last Pushed: 2018-10-31T16:08:10.000Z (over 6 years ago)
- Last Synced: 2025-02-08T09:47:35.201Z (4 months ago)
- Language: Python
- Size: 15.6 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Docker sample
## catch up Docker
- [Get Started, Part 1: Orientation and setup | Docker Documentation](https://docs.docker.com/v17.09/get-started/)
- [Get Started, Part 2: Containers | Docker Documentation](https://docs.docker.com/v17.09/get-started/part2/)
- [Get Started, Part 3: Services | Docker Documentation](https://docs.docker.com/v17.09/get-started/part3/) - only until docker-compose part
# useful tool
- GUI for docker container: [Kitematic](https://kitematic.com/)
# useful link
- [Best practices for writing Dockerfiles | Docker Documentation](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/)
- [Create ephemeral containers](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#general-guidelines-and-recommendations)
- [Understand build context](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#understand-build-context)
- [Exclude with .dockerignore](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#exclude-with-dockerignore)
- [Use multi-stage builds](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#use-multi-stage-builds)
- [Decouple applications](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#decouple-applications)
- [Leverage build cache](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#leverage-build-cache)
- [RUN](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#run)
- [ENV](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#env)
- [EXPOSE](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#expose)
- [ADD or COPY](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#add-or-copy)
- [USER](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#user)
- [WORKDIR](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#workdir)
- [Use multi-stage builds | Docker Documentation](https://docs.docker.com/develop/develop-images/multistage-build/)
- [Docker development best practices | Docker Documentation](https://docs.docker.com/develop/dev-best-practices/#use-cicd-for-testing-and-deployment)
## questions
- [What is the difference between "expose" and "publish" in Docker? - Stack Overflow](https://stackoverflow.com/questions/22111060/what-is-the-difference-between-expose-and-publish-in-docker)
- [Get Started, Part 2: Containers | Docker Documentation](https://docs.docker.com/get-started/part2/#run-the-app)
> This port remapping of 4000:80 demonstrates the difference between EXPOSE within the Dockerfile and what the publish value is set to when running docker run -p. In later steps, map port 4000 on the host to port 80 in the container and use http://localhost.
## debug
- [Dockerfileを作っている最中にデバッグするときの基本的な手順 | GENDOSU@NET](https://gendosu.jp/archives/2838)
```
$ docker ps -a
$ docker commit builddebug
$ docker run --rm -it builddebug /bin/bash
```
- login on container `docker run --rm -it /bin/bash`
## Cheetsheet - container
### images
#### build image
`docker build -t friendlyhello .`
#### see the images
`docker image ls`
### container
#### run container
`docker run -p 4000:80 friendlyhello`
#### run container in background
`docker run -d -p 4000:80 friendlyhello`
#### debug
`docker run --rm -it friendlyhello bash`
#### see current cuntainers
`docker container ls`
#### stop container
`docker container stop`
#### history of layers
`docker history friendlyhello`
- [docker history | Docker Documentation](https://docs.docker.com/engine/reference/commandline/history/)
### registry
#### tag
`docker tag image username/repository:tag`
#### publish
`docker push username/repository:tag`
#### run from docker hub
`docker run -p 4000:80 kibitan/get-started:part2`
## Cheetsheet - service
### deploy
`docker stack deploy -c docker-compose.yml app_name`
### ls
`docker service ls`
### list tasks
`docker service ps app_name`
### down a app
`docker stack rm getstartedlab`