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authorIonut Staicu <github@iamntz.com>2016-09-04 23:20:54 +0300
committerIonut Staicu <github@iamntz.com>2017-01-27 06:20:25 +0200
commit09beeb87ceebf5e0beac05c997ab2d153c924a9d (patch)
tree5935dcc36c0e9cfd6633901bc2cecb9acb999a8c /doc
parent256a7735f8cb8872a7f7595590300e2fd952428e (diff)
downloadgitlab-ce-09beeb87ceebf5e0beac05c997ab2d153c924a9d.tar.gz
Added PHP & NPM doc
Diffstat (limited to 'doc')
-rw-r--r--doc/ci/examples/README.md6
-rw-r--r--doc/ci/examples/deployment/composer-npm-deploy.md150
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diff --git a/doc/ci/examples/README.md b/doc/ci/examples/README.md
index ffc310ec8c7..5711a864bc8 100644
--- a/doc/ci/examples/README.md
+++ b/doc/ci/examples/README.md
@@ -14,6 +14,12 @@ Apart from those, here is an collection of tutorials and guides on setting up yo
- [Test a Phoenix application](test-phoenix-application.md)
- [Using `dpl` as deployment tool](deployment/README.md)
- [Example project that shows how to use Review Apps](https://gitlab.com/gitlab-examples/review-apps-nginx/)
+- [Run PHP Composer & NPM scripts then deploy them to a stage server](deployment/composer-npm-deploy.md)
+- Help your favorite programming language and GitLab by sending a merge request
+ with a guide for that language.
+
+## Outside the documentation
+
- [Blog post about using GitLab CI for iOS projects](https://about.gitlab.com/2016/03/10/setting-up-gitlab-ci-for-ios-projects/)
- [Repositories with examples for various languages](https://gitlab.com/groups/gitlab-examples)
- [The .gitlab-ci.yml file for GitLab itself](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/.gitlab-ci.yml)
diff --git a/doc/ci/examples/deployment/composer-npm-deploy.md b/doc/ci/examples/deployment/composer-npm-deploy.md
new file mode 100644
index 00000000000..dc6bc396e6d
--- /dev/null
+++ b/doc/ci/examples/deployment/composer-npm-deploy.md
@@ -0,0 +1,150 @@
+## Running Composer and NPM scripts with deployment via SCP
+
+This guide covers the building dependencies of a PHP project while compiling assets via a NPM script.
+
+While is possible to create your own image with custom PHP and Node JS versione, for brevity, we will use an existing [Docker image](https://hub.docker.com/r/tetraweb/php/) that contains both PHP and NodeJS installed.
+
+
+```yaml
+image: tetraweb/php
+```
+
+The next step is to install zip/unzip packages and make composer available. We will place these on `before_scripts` section:
+
+```yaml
+before_script:
+ - apt-get update
+ - apt-get install zip unzip
+ - php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
+ - php composer-setup.php
+ - php -r "unlink('composer-setup.php');"
+```
+
+This will make sure we will have all required stuff ready to use. Next, we want to run `composer update` to fetch all PHP dependencies and `npm install` to load node packages then run the `npm` script. We need to append them into `before_script` section:
+
+```yaml
+before_script:
+ # ...
+ - php composer.phar update
+ - npm install
+ - npm run deploy
+```
+
+In this particular case, the `npm deploy` script is a Gulp script that do the following:
+
+1. Compile CSS & JS
+2. Create sprites
+3. Copy various assets (images, fonts) around
+4. Replaces some strings
+
+All these operations will put all files into a `build` folder, which is ready to be deployed to a live server.
+
+### How to transfer files on a live server?
+
+You have multiple options: rsync, scp, sftp and so on. For now, we will use scp. To make this work, you need to add a gitlab Secret Variable (accessible on _gitlab.com/your-project-name/variables_). That variable will be called `STAGING_PRIVATE_KEY` and it's the **private** ssh key of your server.
+
+#### Security tip
+Create an user that have access **only** to the folder that need to be updated!
+
+After you create that variable, you need to make sure that key will be added to the docker container on run:
+
+```yaml
+before_script:
+ # - ....
+ - 'which ssh-agent || ( apt-get update -y && apt-get install openssh-client -y )'
+ - mkdir -p ~/.ssh
+ - eval $(ssh-agent -s)
+ - '[[ -f /.dockerenv ]] && echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > ~/.ssh/config'
+```
+
+In order, this means that:
+
+1. We check if the `ssh` is available and we install it if it's not;
+2. create the `~/.ssh` folder;
+3. we make sure we're running bash;
+4. we disable host checking (we don't ask for user accept when we first connect to a server; and since every build will equal a first connect, we kind of need this)
+
+And this is basically al you need on `before_script` section.
+
+## How to deploy things?
+
+As we stated above, we need to deploy the `build` folder from the docker image to our server. To do so, we create a new job:
+
+```yaml
+stage_deploy:
+ artifacts:
+ paths:
+ - build/
+ only:
+ - dev
+ script:
+ - ssh-add <(echo "$STAGING_PRIVATE_KEY")
+ - ssh -p22 server_user@server_host "mkdir htdocs/wp-content/themes/_tmp"
+ - scp -P22 -r build/* server_user@server_host:htdocs/wp-content/themes/_tmp
+ - ssh -p22 server_user@server_host "mv htdocs/wp-content/themes/live htdocs/wp-content/themes/_old && mv htdocs/wp-content/themes/_tmp htdocs/wp-content/themes/live"
+ - ssh -p22 server_user@server_host "rm -rf htdocs/wp-content/themes/_old"
+```
+
+### What's going on here?
+
+1. `only:dev` means that this build will run only when something is pushed on the `dev` branch. You can remove this block completely and have everything be ran on every push (but probably this is something you don't want)
+2. `ssh-add ...` we will add that private key you added on the web UI to the docker container
+3. we will connect via `ssh` and create a new `_tmp` folder
+4. we will connect via `scp` and upload the `build` folder (which was generated by a `npm` script) to our previously created `_tmp` folder
+5. We will connect again to `ssh` and move the `live` folder to an `_old` folder, then move `_tmp` to `live`.
+6. We connect to ssh and remove the `_old` folder
+
+What's the deal with the artifacts? We just tell Gitlab CI to keep the `build` directory (later on, you can download that as needed).
+
+#### Why we do it this way?
+If you're using this only for stage server, you could do this in two steps:
+
+```yaml
+- ssh -p22 server_user@server_host "rm -rf htdocs/wp-content/themes/live/*"
+- scp -P22 -r build/* server_user@server_host:htdocs/wp-content/themes/live
+```
+
+The problem is that there will be a small period of time when you won't have the app on your server.
+
+So we use so many steps because we want to make sure that at any given time we have a functional app in place.
+
+## Where to go next?
+Since this was a WordPress project, I gave real life code snippets. Some ideas you can pursuit:
+
+- Having a slightly different script for `master` branch will allow you to deploy to a production server from that branch and to a stage server from any other branches;
+- Instead of pushing it live, you can push it to WordPress official repo (with creating a SVN commit & stuff);
+- You could generate i18n text domains on the fly;
+
+---
+
+Our final `.gitlab-ci.yml` will look like this:
+
+```yaml
+image: tetraweb/php
+
+before_script:
+ - apt-get update
+ - apt-get install zip unzip
+ - php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
+ - php composer-setup.php
+ - php -r "unlink('composer-setup.php');"
+ - php composer.phar update
+ - npm install
+ - npm run deploy
+ - 'which ssh-agent || ( apt-get update -y && apt-get install openssh-client -y )'
+ - mkdir -p ~/.ssh
+ - eval $(ssh-agent -s)
+ - '[[ -f /.dockerenv ]] && echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > ~/.ssh/config'
+
+stage_deploy:
+ artifacts:
+ paths:
+ - build/
+ only:
+ - dev
+ script:
+ - ssh-add <(echo "$STAGING_PRIVATE_KEY")
+ - ssh -p22 server_user@server_host "mkdir htdocs/wp-content/themes/_tmp"
+ - scp -P22 -r build/* server_user@server_host:htdocs/wp-content/themes/_tmp
+ - ssh -p22 server_user@server_host "mv htdocs/wp-content/themes/live htdocs/wp-content/themes/_old && mv htdocs/wp-content/themes/_tmp htdocs/wp-content/themes/live"
+ - ssh -p22 server_user@server_host "rm -rf htdocs/wp-content/themes/_old"