Difference between revisions of "Dockerfile"
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↑ https://en.wikiversity.org/wiki/DevOps/Docker/Dockerfile
↑ https://kapeli.com/cheat_sheets/Dockerfile.docset/Contents/Resources/Documents/index
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| − | Dockerfile is a text file where you define instructions used to create your Docker images, check official Dockerfile Reference documentation: https://docs.docker.com/engine/reference/builder/<ref>https://en.wikiversity.org/wiki/DevOps/Docker/Dockerfile</ref> | + | <code>Dockerfile</code> is a text file where you define instructions used to create your Docker images, check official Dockerfile Reference documentation: https://docs.docker.com/engine/reference/builder/<ref>https://en.wikiversity.org/wiki/DevOps/Docker/Dockerfile</ref> |
For creating this file with instructions usually called Dockerfile you can use the following keywords<ref>https://kapeli.com/cheat_sheets/Dockerfile.docset/Contents/Resources/Documents/index</ref>: | For creating this file with instructions usually called Dockerfile you can use the following keywords<ref>https://kapeli.com/cheat_sheets/Dockerfile.docset/Contents/Resources/Documents/index</ref>: | ||
| − | * ADD | + | * <code>[[ADD]]</code> |
| − | * ARG | + | * <code>[[ARG]]</code> |
| − | * [[CMD]] | + | * <code>[[CMD]]</code> for executing containers. https://docs.docker.com/engine/reference/builder/#cmd |
| − | * COPY | + | * <code>[[COPY]]</code> |
| − | * [[ENTRYPOINT]]: https://docs.docker.com/engine/reference/builder/#entrypoint | + | * <code>[[ENTRYPOINT]]</code>: https://docs.docker.com/engine/reference/builder/#entrypoint |
| − | * ENV | + | * <code>[[ENV]]</code> |
| − | * [[EXPOSE]] | + | * <code>[[EXPOSE]]</code> |
| − | * FROM https://docs.docker.com/engine/reference/builder/#from | + | * <code>[[FROM]]</code> https://docs.docker.com/engine/reference/builder/#from |
* [[HEALTHCHECK]] https://docs.docker.com/engine/reference/builder/#healthcheck (>= [[Docker 1.12]]) | * [[HEALTHCHECK]] https://docs.docker.com/engine/reference/builder/#healthcheck (>= [[Docker 1.12]]) | ||
* LABEL | * LABEL | ||
* ONBUILD | * ONBUILD | ||
| − | * RUN: https://docs.docker.com/engine/reference/builder/#run | + | * <code>[[RUN]]:</code> https://docs.docker.com/engine/reference/builder/#run |
* SHELL | * SHELL | ||
* STOPSIGNAL | * STOPSIGNAL | ||
| − | * USER | + | * <code>[[USER]]</code>:</code> https://docs.docker.com/engine/reference/builder/#user |
* [[VOLUME]], creates a [[mount point]] | * [[VOLUME]], creates a [[mount point]] | ||
* WORKDIR | * WORKDIR | ||
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# Read Understand how CMD and ENTRYPOINT interact https://docs.docker.com/engine/reference/builder/#understand-how-cmd-and-entrypoint-interact | # Read Understand how CMD and ENTRYPOINT interact https://docs.docker.com/engine/reference/builder/#understand-how-cmd-and-entrypoint-interact | ||
# Learn about [[start configuration behavior and restart policy]] | # Learn about [[start configuration behavior and restart policy]] | ||
| − | # Learn | + | # Learn how to use <code>.[[dockerignore]]</code> file |
| − | # Read Dockerfile best practices https://docs.docker.com/develop/develop-images/dockerfile_best-practices/ | + | # Read <code>Dockerfile</code> best practices https://docs.docker.com/develop/develop-images/dockerfile_best-practices/ |
== Related terms == | == Related terms == | ||
| + | * [[Dockerfile examples]] | ||
| + | * <code>[[docker build]]</code> | ||
| + | * <code>[[docker-compose build]]</code>, <code>[[image]]:, [[build:]], [[dockerfile:]], [[args:]]</code> | ||
* [[Docker Engine release notes]] | * [[Docker Engine release notes]] | ||
* [[BuildKit]] Dockerfile-agnostic builder toolkit | * [[BuildKit]] Dockerfile-agnostic builder toolkit | ||
| − | * <code>[[docker start]]</code> | + | * <code>[[docker start]]</code>, <code>[[docker run]]</code> |
| − | * <code>[[ | + | * [[Buildpack]] |
| − | * <code>[[ | + | * <code>[[.dockerignore]]</code> |
| − | * [[ | + | * <code>[[Makefile]]</code> |
| + | * [[Caddyfile]] | ||
== See also == | == See also == | ||
| + | * {{Dockerfile}} | ||
| + | * {{docker build}} | ||
* {{docker-compose}} | * {{docker-compose}} | ||
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[[Category:Docker]] | [[Category:Docker]] | ||
Latest revision as of 17:41, 22 February 2024
Dockerfile is a text file where you define instructions used to create your Docker images, check official Dockerfile Reference documentation: https://docs.docker.com/engine/reference/builder/[1]
For creating this file with instructions usually called Dockerfile you can use the following keywords[2]:
ADDARGCMDfor executing containers. https://docs.docker.com/engine/reference/builder/#cmdCOPYENTRYPOINT: https://docs.docker.com/engine/reference/builder/#entrypointENVEXPOSEFROMhttps://docs.docker.com/engine/reference/builder/#from- HEALTHCHECK https://docs.docker.com/engine/reference/builder/#healthcheck (>= Docker 1.12)
- LABEL
- ONBUILD
RUN:https://docs.docker.com/engine/reference/builder/#run- SHELL
- STOPSIGNAL
USER: https://docs.docker.com/engine/reference/builder/#user- VOLUME, creates a mount point
- WORKDIR
Activities[edit]
- Learn differences between RUN and CMD or ENTRYPOINT: https://stackoverflow.com/a/25150809
- Read Understand how CMD and ENTRYPOINT interact https://docs.docker.com/engine/reference/builder/#understand-how-cmd-and-entrypoint-interact
- Learn about start configuration behavior and restart policy
- Learn how to use
.dockerignorefile - Read
Dockerfilebest practices https://docs.docker.com/develop/develop-images/dockerfile_best-practices/
Related terms[edit]
- Dockerfile examples
docker builddocker-compose build,image:, build:, dockerfile:, args:- Docker Engine release notes
- BuildKit Dockerfile-agnostic builder toolkit
docker start,docker run- Buildpack
.dockerignoreMakefile- Caddyfile
See also[edit]
Dockerfile: FROM, RUN, CMD, ENTRYPOINT, WORKDIR, COPY, ADD, USER, ENV, ARG, HEALTHCHECK,hadolint, LABEL, EXPOSEdocker build [ --tag | --platform | --help ] FROM, Dockerfile, .dockerignore, requirements.txt, docker build --help, docker tagdocker-compose,docker-compose.yml: [services|volumes|networks|up|down|restart|logs|create|changelog|version|secrets|config|-v|-h|exec], docker-compose pull,Environment:, Docker-compose.yml examples,.env, release notes, expose:, docker-compose --env-file,services.deploy.resources
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