Add Docker support

.semver

@@ -1,5 +1,5 @@
 ---
 :major: 1
-:minor: 2
-:patch: 1
+:minor: 3
+:patch: 0
 :special: ''

README.md

@@ -25,7 +25,8 @@ It could be useful if you want to start from scratch a kata or a little exercise
 
 ## How To Start
 
-You have 2 different alternatives: Using our [Packagist project](https://packagist.org/packages/codelytv/php-bootstrap) with Composer, or manually cloning [this repo](https://github.com/CodelyTV/php-bootstrap/):
+You have 3 different alternatives: Using our [Packagist project](https://packagist.org/packages/codelytv/php-bootstrap) with Composer, manually cloning [this repo](https://github.com/CodelyTV/php-bootstrap/)
+or using Docker:
 
 ### Using Composer
 
@@ -67,6 +68,25 @@ Just in case you prefer to avoid dealing with `composer create-project`, you can
     6. Upload your local commits to the new remote repo: `git push -u origin master`
 7. Start coding!
 
+### Using Docker
+
+You can avoid the need of a local PHP installation using Docker.
+
+1. You will need [Docker installed](https://docs.docker.com/install/) in your computer.
+2. [Download](https://github.com/CodelyTV/php-bootstrap/archive/master.zip) this repository and unzip it in your project directory.
+3. Run the script `up.sh` available in the project's root folder. The first time it will build the Docker image and download the dependencies, and you will end up in a container sharing the project folder with your local machine.
+4. Run all the checks: `composer test`. This will do some checks that you can perform with isolated commands: 
+    1. [PHP Parallel Lint](https://github.com/JakubOnderka/PHP-Parallel-Lint): `composer lint`.
+    2. [PHP Style Check](https://github.com/squizlabs/PHP_CodeSniffer): `composer style`. If you want to fix style issues automatically: `composer fix-style`.
+    3. [PHP Unit](https://phpunit.de/): `composer phpunit`.
+5. Create your own repository:
+    1. Initialize your own Git repository: `git init`
+    2. Add the bootstrap files: `git add .`
+    3. Commit: `git commit -m "Initial commit with project boilerplate based on https://github.com/CodelyTV/php-bootstrap"`
+    4. Add your remote repository: `git remote add origin [email protected]:your-username/your-project-name`
+    5. Upload your local commits to the new remote repo: `git push -u origin master`
+6. Start coding! 
+
 ## Helpful resources
 
 ### PHP 7

docker/php.dockerfile

@@ -0,0 +1,18 @@
+FROM php:7.2.8-alpine3.7
+
+RUN curl -sS https://getcomposer.org/installer | php \
+    && mv composer.phar /usr/local/bin/ \
+    && ln -s /usr/local/bin/composer.phar /usr/local/bin/composer
+
+RUN apk add --no-cache $PHPIZE_DEPS \
+    && pecl install xdebug-2.6.0 \
+    && docker-php-ext-enable xdebug
+
+RUN adduser -D -u 1000 codelytv
+
+RUN mkdir app \
+    && chown codelytv app
+
+WORKDIR app
+
+USER codelytv

up.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+IMAGE_NAME="codelytv-bootstrap"
+
+if [[ "$(docker images -q ${IMAGE_NAME}:latest 2> /dev/null)" == "" ]]; then
+  docker build -t ${IMAGE_NAME} -f docker/php.dockerfile ./docker
+fi
+
+if [[ ! -a vendor ]]; then
+    docker run -v $(pwd):/app -t --rm ${IMAGE_NAME} sh -c "composer install"
+fi
+
+docker run -it --rm -v $(pwd):/app ${IMAGE_NAME} sh