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104 lines
2.9 KiB
Markdown
104 lines
2.9 KiB
Markdown
Yii and Docker
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==============
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For development and deployments Yii applications can be run as Docker containers. A container is like a lightweight isolated virtual machine that maps its services to host's ports, i.e. a webserver in a container on port 80 is available on port 8888 on your (local)host.
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Containers can solve many issues such as having identical software versions at developer's computer and the server, fast deployments or simulating multi-server architecture while developing.
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You can read more about Docker containers on [docker.com](https://www.docker.com/why-docker).
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## Requirements
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- `docker`
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- `docker-compose`
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Visit the [download page](https://www.docker.com/products/container-runtime) to get the Docker tooling.
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## Installation
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After installation, you should be able to run `docker ps` and see an output similar to
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```
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CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS
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```
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This means your Docker daemon is up and running.
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Additionally run `docker-compose version`, your output should look like this
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```
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docker-compose version 1.20.0, build unknown
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docker-py version: 3.1.3
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CPython version: 3.6.4
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OpenSSL version: OpenSSL 1.1.0g 2 Nov 2017
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```
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With Compose you can configure manage all services required for your application, such as databases and caching.
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## Resources
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- PHP-base images for Yii can be found at [yii2-docker](https://github.com/yiisoft/yii2-docker)
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- Docker support for [yii2-app-basic](https://github.com/yiisoft/yii2-app-basic#install-with-docker)
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- Docker support for [yii2-app-advanced](https://github.com/yiisoft/yii2-app-advanced/pull/347) is in development
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## Usage
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Basic commands for Docker are
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docker-compose up -d
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to start all services in your stack, in the background
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docker-compose ps
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to list running services
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docker-compose logs -f
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to view logs for all services, continuously
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docker-compose stop
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to stop all services in your stack, gracefully
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docker-compose kill
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to stop all services in your stack, immediately
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docker-compose down -v
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to stop and remove all services, **be aware of data loss when not using host-volumes**
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To run commands in a container
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docker-compose run --rm php composer install
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runs composer installation in a new container
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docker-compose exec php bash
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executes a bash in a *running* `php` service
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## Advanced topics
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### Yii framework tests
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You can run the dockerized framework tests for Yii itself as described [here](https://github.com/yiisoft/yii2/blob/master/tests/README.md#dockerized-testing).
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### Database administration tools
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When running MySQL as (`mysql`), you can add phpMyAdmin container to your stack like the following:
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```
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phpmyadmin:
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image: phpmyadmin/phpmyadmin
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ports:
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- '8888:80'
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environment:
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- PMA_ARBITRARY=1
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- PMA_HOST=mysql
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depends_on:
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- mysql
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```
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