https://github.com/claudio-code/learning-docker
:whale2: It project has used to learning about docker in different stacks
https://github.com/claudio-code/learning-docker
Last synced: 3 months ago
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:whale2: It project has used to learning about docker in different stacks
- Host: GitHub
- URL: https://github.com/claudio-code/learning-docker
- Owner: Claudio-code
- Created: 2022-09-17T23:58:22.000Z (almost 3 years ago)
- Default Branch: main
- Last Pushed: 2023-11-01T11:47:29.000Z (over 1 year ago)
- Last Synced: 2025-02-15T20:54:06.490Z (4 months ago)
- Language: Dockerfile
- Size: 25.4 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
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Metadata Files:
- Readme: README.md
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README
:whale2: About project
## Dockerfile Glossary
**ADD**: Command used in Dockerfile to copy files and folders to container.
**CMD**: Command used in Dockerfile to specify default command to execute when start container.
**COPY**: Command used in Dockerfile to copy files and folders to container.
**ENTRYPOINT**: Command used in Dockerfile to specify default command to execute when start container, but can't be replaced when start container.
**ENV**: Command used in Dockerfile to define environment variables what will be in container build and running.
**EXPOSE**: Command used in Dockerfile to define port that the container will execute allowed communication with another containers or with host.
**FROM**: Command used in Dockerfile to specify base image that will be used to build container.
**LABEL**: Command used in Dockerfile to add metadata in image, like information of author and descriptions.
**MAINTAINER**: Command used in Dockerfile to specify author of image.
**RUN**: Command used in Dockerfile to execute commands during container build.
**USER**: Command used in Dockerfile to specify user that will be used to execute commands in container.
**VOLUME**: Command used in Dockerfile to define volume mount point, allowed data share between host and container.
**WORKDIR**: Command used in Dockerfile do define work directory in container, where command will be executed.
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## Timeline: build docker image
1. **Create Dockerfile**: First pass in build docker image is create Dockerfile. It file contain necessary instructions to build image, with base choice, dependency installation and environment configuration.
2. **Build image**: After create Dockerfile is necessary execute command `docker build` to start build image process. At that time docker will read Dockerfile and compile image according to specify in file.
3. **Tag image**: After finish build is possible add tags in image to facility identification and versioning. Example can add tag indicating application version or destiny environment.