Add README with explanation of using CI/CD application
Change-Id: Ib35bb97ad764f633693106ba44939b85aa4811ec
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Sergey Kraynev
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===============
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Using CI/CD App
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===============
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This is a step by step guide how to use CI/CD application.
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1. Download Murano Packages/Applications
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----------------------------------------
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For users
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+++++++++
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All Applications are available in App Catalog.
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The main one is:
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http://apps.openstack.org/#tab=murano-apps&asset=CiCdEnvironment
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For Developers
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++++++++++++++
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For manually uploading the packages to Murano, user need to upload them
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in special order, otherwise it may lead to automatic loading their dependencies
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from App Catalog, which has probably the different versions of these packages.
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For development purposes special script can be used:
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https://github.com/openstack/ci-cd-pipeline-app-murano/blob/master/tools/prepare_packages.sh
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The right order of manual load packages via Murano UI is
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(same order is used in script mentioned above):
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- Puppet
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- SystemConfig
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- OpenLDAP
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- Gerrit
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- Jenkins
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- Zuul
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- NodePool
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- CICDEnvironment
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2. Install CI/CD Application via Murano UI
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------------------------------------------
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For more information how to use Murano is available here:
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http://murano.readthedocs.io/en/latest/draft/enduser-guide/quickstart.html
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For the CI/CD application in this repo specify the following parameters:
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1.First panel:
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- Root Username
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- Root Password
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- Root User Email
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- Username
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- Password
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- Email
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This is user credentials - for admin and common user.
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If you have you own .gitconfig file on desktop, you can change user credentials
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or use default settings.
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2.Second panel:
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- Instance flavor
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- Instance image
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- Key Pair
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- Availability zone
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- Instance Naming Pattern
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For successful deployment of murano app, user need to download special image
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with pre-installed murano-agent. If you want to create your own image, then
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follow the instruction:
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http://docs.openstack.org/developer/murano/image_builders/linux.html
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Then deploy your application in environment.
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3. Find links on the deployed services
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--------------------------------------
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When application is finally deployed, go to **Environments** panel, choose
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the newly deployed environment and open the **Latest Deployment Log** tab.
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Scroll down and click on Jenkins, Gerrit URLs.
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Known issue:
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Need to add mapping hostname to your local desktop to have access to Gerrit Web
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form. Also the same issue exists for Jenkins, so repeat it for Jenkins VM too.
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How to fix:
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Execute command: *sudo echo "<ip_address> <hostname> >> /etc/hosts* on your
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local desktop and on Jenkins VM (via ssh). Where:
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- <ip_address> is IP of Gerrit VM, which is available at
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**Latest Deployment Log** tab. (it's a hyperlink like http://xx.xx.xx.xx:80)
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- <hostname> is a hostname displayed in web browser URL after click
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on the link at **Latest Deployment Log** tab. (as above, it's
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http://xx.xx.xx.xx:80).
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4. Add new project
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------------------
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- Log in to Gerrit with login/password provided via UI on step 2 (they are
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also can be found at the **Latest Deployment Log** tab). Go to user’s
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**Settings** -> **SSH Public Keys**. Add your public ssh key.
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- Open **Projects** -> **List**. Choose open-paas/project-config.
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Clone project via SSH. For example:
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*git clone ssh://<username_from_step_2>@hostname:29418/open-paas/project-config*
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- Add new project to Gerrit config, like it works for Openstack Infra.
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Open gerrit/projects.yaml in project-config repo from previous step and add
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something like::
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- project: demo/petclinic
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description: petclinic description
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upstream: https://github.com/sn00p/spring-petclinic
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acl-config: /home/gerrit2/acls/open-paas/project-config.config
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Ideally ACL file should be different, but for simple example we can use
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the existing one.
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- Set correct options as default from step 2 for your ~/.gitconfig on desktop
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by adding the following lines::
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[user]
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email = user@mail.com
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name = user
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Skip this step if you have your own ~/.gitconfig and you already specified
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correct name and mail on step 2.
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- Commit changes and push to review::
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git add .
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git commit -am "Add Petclinic Project"
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git review -r origin master
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- When change is uploaded to Gerrit, re-login with root user credentials.
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Open proposed patch, set Code-Review +2 and click **Submit**.
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- Wait a while until your changes are being merged into the repository (it may
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take from 1 to 5 minutes). Re-login with user’s credentials and open
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**Projects** -> **List** again. New project should be in the project list
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now.
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5. Configure and run Jenkins job for your project
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-------------------------------------------------
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Known issue:
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We already have template for Maven job, but it is not applied by default.
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How to fix:
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To apply this job template you need to connect to Jenkins VM via ssh. Login
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as **root** and execute command:
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**jenkins-jobs update /etc/project-config/jenkins/jobs**
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- Go to Jenkins UI form, open created job and and configure it. Set
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**Source Code management** to *Git* .Set **Repository url** as it's displayed
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in Gerrit. For example:
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**ssh://<username>@<gerrit_hostname>:29418/demo/petclinic**
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Use **jenkins** user in link above instead of **<username>**.
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- If you work with the demo/petclinic test project as it demostrated on
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previous steps, then you need an additional configuration here:
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Set **Branch** to *Spring-Security*, for current project.
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In section **Build** in field **Goals and Options** write: *tomcat7:deploy*
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- Run Job and make sure that it is deployed in tomcat server.
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Currently it's hardcoded inside of the mentioned repository of custom
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petclinic project. For normal work you need to update **pom.xml** file to
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reference on correct IP address with Tomcat server. When it's ready, open URL
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with your project. For example:
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**http://<ip_of_tomcat_server>:8080/petclinic**
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6. Update project and re-run Jenkins job
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----------------------------------------
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- Clone petclinic project. For example:
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**git clone ssh://<username>@<gerrit_hostname>:29418/demo/petclinic**
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- Change branch in repo to **Spring-Security**::
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git checkout Spring-Security
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- Change the following file in this repository:
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**src/main/webapp/WEB-INF/jsp/welcome.jsp**. For example,replace word
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**Welcome** with **Hi there!**. Commit and push on review::
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git add .
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git commit -am "Patch with changes"
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git review -r origin Spring-Security
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- Re-login with root credentials and merge this patch.
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- Re-run job in Jenkins. And re-check Tomcat server again.
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