147 lines
5.3 KiB
Markdown
147 lines
5.3 KiB
Markdown
<!--
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********************************************************************************
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WARNING:
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DO NOT EDIT "composer/README.md"
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IT IS AUTO-GENERATED
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(from the other files in "composer/" combined with a set of templates)
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********************************************************************************
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-->
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# Supported tags and respective `Dockerfile` links
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- [`1.5.2`, `1.5`, `1`, `latest` (*1.5/Dockerfile*)](https://github.com/composer/docker/blob/cbfc849e710828ff5b0cf7c0b69b79126c4d5b26/1.5/Dockerfile)
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- [`1.4.3`, `1.4` (*1.4/Dockerfile*)](https://github.com/composer/docker/blob/ea0ec1efa4b15f4ad7b809793eecbb76633dcbb8/1.4/Dockerfile)
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# Quick reference
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- **Where to get help**:
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[the Docker Community Forums](https://forums.docker.com/), [the Docker Community Slack](https://blog.docker.com/2016/11/introducing-docker-community-directory-docker-community-slack/), or [Stack Overflow](https://stackoverflow.com/search?tab=newest&q=docker)
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- **Where to file issues**:
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[https://github.com/composer/docker/issues](https://github.com/composer/docker/issues)
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- **Maintained by**:
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[Composer](https://github.com/composer/docker)
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- **Published image artifact details**:
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[repo-info repo's `repos/composer/` directory](https://github.com/docker-library/repo-info/blob/master/repos/composer) ([history](https://github.com/docker-library/repo-info/commits/master/repos/composer))
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(image metadata, transfer size, etc)
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- **Image updates**:
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[official-images PRs with label `library/composer`](https://github.com/docker-library/official-images/pulls?q=label%3Alibrary%2Fcomposer)
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[official-images repo's `library/composer` file](https://github.com/docker-library/official-images/blob/master/library/composer) ([history](https://github.com/docker-library/official-images/commits/master/library/composer))
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- **Source of this description**:
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[docs repo's `composer/` directory](https://github.com/docker-library/docs/tree/master/composer) ([history](https://github.com/docker-library/docs/commits/master/composer))
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- **Supported Docker versions**:
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[the latest release](https://github.com/docker/docker/releases/latest) (down to 1.6 on a best-effort basis)
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# What is Composer?
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Composer is a tool for dependency management in PHP, written in PHP. It allows you to declare the libraries your project depends on and it will manage (install/update) them for you.
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You can read more about Composer in our [official documentation](https://getcomposer.org/doc/).
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# Using
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Run the `composer` image:
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```sh
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docker run --rm --interactive --tty \
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--volume $PWD:/app \
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composer install
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```
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You can mount the Composer home directory from your host inside the Container to share caching and configuration files:
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```sh
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docker run --rm --interactive --tty \
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--volume $PWD:/app \
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--volume $COMPOSER_HOME:/tmp \
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composer install
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```
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By default, Composer runs as root inside the container. This can lead to permission issues on your host filesystem. You can run Composer as your local user:
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```sh
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docker run --rm --interactive --tty \
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--volume $PWD:/app \
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--user $(id -u):$(id -g) \
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composer install
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```
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When you need to access private repositories, you will either need to share your configured credentials, or mount your `ssh-agent` socket inside the running container:
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```sh
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docker run --rm --interactive --tty \
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--volume $PWD:/app \
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--volume $SSH_AUTH_SOCK:/ssh-auth.sock \
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--env SSH_AUTH_SOCK=/ssh-auth.sock \
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composer install
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```
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When combining the use of private repositories with running Composer as another (local) user, you might run into non-existant user errors. To work around this, simply mount the host passwd and group files (read-only) into the container:
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```sh
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docker run --rm --interactive --tty \
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--volume $PWD:/app \
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--volume $SSH_AUTH_SOCK:/ssh-auth.sock \
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--volume /etc/passwd:/etc/passwd:ro \
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--volume /etc/group:/etc/group:ro \
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--user $(id -u):$(id -g) \
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--env SSH_AUTH_SOCK=/ssh-auth.sock \
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composer install
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```
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## Suggestions
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### PHP Extensions
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We aim to deliver an image that is as lean as possible, built for running Composer only.
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Sometimes dependencies or Composer [scripts](https://getcomposer.org/doc/articles/scripts.md) require the availability of certain PHP extensions. In this scenario, you have two options:
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- Pass the `--ignore-platform-reqs` and `--no-scripts` flags to `install` or `update`:
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```sh
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docker run --rm --interactive --tty \
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--volume $PWD:/app \
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composer install --ignore-platform-reqs --no-scripts
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```
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- Create your own image (possibly by extending `FROM composer`).
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### Local runtime/binary
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If you want to be able to run `composer` as if it was installed on your host locally, you can define the following function in your `~/.bashrc`, `~/.zshrc` or similar:
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```sh
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composer () {
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tty=
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tty -s && tty=--tty
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docker run \
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$tty \
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--interactive \
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--rm \
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--user $(id -u):$(id -g) \
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--volume /etc/passwd:/etc/passwd:ro \
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--volume /etc/group:/etc/group:ro \
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--volume $(pwd):/app \
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composer "$@"
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}
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```
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# License
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View [license information](https://github.com/composer/composer/blob/master/LICENSE) for the software contained in this image.
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