{"id":9715,"date":"2021-12-28T04:40:04","date_gmt":"2021-12-28T04:40:04","guid":{"rendered":"https:\/\/blog.cloudthat.com\/?p=9715"},"modified":"2024-06-25T11:05:50","modified_gmt":"2024-06-25T11:05:50","slug":"a-tutorial-on-building-a-deployment-pipeline-with-custom-jenkins-image","status":"publish","type":"blog","link":"https:\/\/www.cloudthat.com\/resources\/blog\/a-tutorial-on-building-a-deployment-pipeline-with-custom-jenkins-image","title":{"rendered":"A Tutorial on Building a Deployment Pipeline with Custom Jenkins Image"},"content":{"rendered":"\n\n\n\n\n\n\n\n\n\n
TABLE OF CONTENT<\/strong><\/span><\/td>\n<\/tr>\n
Problem Statement<\/a><\/td>\n<\/tr>\n
Prerequisite<\/a><\/td>\n<\/tr>\n
Important steps used<\/a><\/td>\n<\/tr>\n
Github clone<\/a><\/td>\n<\/tr>\n
GitHub Configuration<\/a><\/td>\n<\/tr>\n
Deployment configuration<\/a><\/td>\n<\/tr>\n
Test Job Configuration<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Problem Statement<\/h1>\n

Creating a Dockerfile to create Jenkins container image and then automate provisioning the environment to deploy the webpages with the help of Jenkins.<\/p>\n

Prerequisite<\/h1>\n

Docker must be installed and in running state, CENTOS system is employed in this tutorial. (If you are using other operating systems then use their respective package and service manager.)<\/p>\n

We have created a Dockerfile using a base image as centos 7 and then created a Jenkins container image.<\/p>\n

Important steps used<\/h1>\n

Jenkins requires java to be installed in the backend,
\n2. Wget<\/em><\/strong> is installed to download Jenkins official repository from the web,
\n3. Then the gpg-key<\/em> <\/strong>is added for the yum repo to get authorized,
\n4. We install Jenkins as the yum repo is configured with proper gpg-key<\/em><\/strong>,
\n5. To start Jenkins service we have to install service<\/strong> utility,
\n6. For the connection to Jenkins server, it must be exposed on 8080 port,
\n7. Finally, we have a script that starts Jenkins service (with the help of the service utility) and puts the container in sleep mode so that it will not get stopped.<\/p>\n

\"\"<\/a><\/p>\n

Docker file to create Jenkins Image<\/strong><\/p>\n

Github clone<\/h1>\n

We can create the docker file by using the following command:
\ndocker build -t image_name: version workspace_name
\n<\/em><\/strong>where workspace_name = absolute path where the Dockerfile is present.<\/p>\n

We will now launch the Jenkins server by using the above image.<\/p>\n

Now using this image, we have launched the Jenkins container and created five jobs<\/em><\/p>\n

    \n
  1. Github_clone <\/em><\/li>\n
  2. Deploy <\/em><\/li>\n
  3. Test <\/em><\/li>\n
  4. Notify<\/em><\/li>\n
  5. Monitor<\/em><\/li>\n<\/ol>\n

    This job will clone from the GitHub repository on the Jenkins server and hence this code will be used for the deployment of the website.<\/p>\n

    Image-1:<\/strong> It depicts the repo URL<\/em><\/strong> from where the code will be fetched for the deployment.<\/p>\n

    \"\"<\/a><\/p>\n

    Image-1<\/strong><\/p>\n

    Image-2:<\/strong>\u00a0 It depicts the <username><\/em><\/strong> @<ip> <\/em><\/strong>(to ssh plugin) of the server on which the given commands are to be executed (ignore the warnings if any). The command is to copy the github_clone repo from the container to the document root of the web server (so that it will be hosted).<\/p>\n

    \"\"<\/a><\/p>\n

    Image-2<\/p>\n

    GitHub Configuration<\/h1>\n

    Deploy<\/strong>:<\/p>\n

    We run a container and mount the repo in the document root inside the container and then this job will deploy the code into the container by using docker in the Redhat system. ssh plugin<\/em><\/strong> is used to deploy it on a remote host because Jenkins is running on the container, therefore, we require to build this job on a remote host.<\/p>\n

    \"\"<\/a><\/p>\n

    Image-3<\/p>\n

    Deployment configuration<\/h1>\n

    If the code that is used is written in some other language then we can install its respective interpreter using the yum install <interpretor package name><\/strong> <\/em>(e.g if PHP is used then install PHP-CLI<\/em><\/strong>).<\/p>\n

    Test<\/strong>:<\/p>\n

    This job will check the status code of the web pages given by the browser and if some bugs show up then a notification will be sent to the developer with the error message embedded in it.<\/p>\n

    \"\"<\/a><\/p>\n

    Image-4<\/p>\n

    Test Job Configuration<\/h1>\n

    Using the email plugin the email notification is configured, which can be configured as shown:<\/p>\n

    \"\"<\/a><\/p>\n

    Image-5<\/p>\n

    Monitor<\/strong>:<\/p>\n

    This job is to monitor the deployment job, So, if the container crashes or fails it will automatically create a new container for the use.<\/p>\n

    \"\"<\/a><\/p>\n

    Image-6<\/p>\n

    About CloudThat:<\/strong><\/h1>\n

    CloudThat provides end-to-end support with all the AWS services. As a pioneer in the Cloud Computing consulting realm, we are\u00a0 AWS (Amazon Web Services) Advanced Consulting Partner, and Training partner. We are on a mission to build\u00a0a robust\u00a0cloud computing ecosystem by disseminating\u00a0knowledge on technological intricacies within the cloud space. Read more about CloudThat\u2019s Consulting and Expert Advisory.<\/strong><\/a><\/p>\n","protected":false},"author":219,"featured_media":9725,"parent":0,"comment_status":"open","ping_status":"open","template":"","blog_category":[3606,3607],"user_email":"prarthitm@cloudthat.com","published_by":"324","primary-authors":"","secondary-authors":"","acf":[],"_links":{"self":[{"href":"https:\/\/www.cloudthat.com\/resources\/wp-json\/wp\/v2\/blog\/9715"}],"collection":[{"href":"https:\/\/www.cloudthat.com\/resources\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.cloudthat.com\/resources\/wp-json\/wp\/v2\/types\/blog"}],"author":[{"embeddable":true,"href":"https:\/\/www.cloudthat.com\/resources\/wp-json\/wp\/v2\/users\/219"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cloudthat.com\/resources\/wp-json\/wp\/v2\/comments?post=9715"}],"version-history":[{"count":1,"href":"https:\/\/www.cloudthat.com\/resources\/wp-json\/wp\/v2\/blog\/9715\/revisions"}],"predecessor-version":[{"id":43283,"href":"https:\/\/www.cloudthat.com\/resources\/wp-json\/wp\/v2\/blog\/9715\/revisions\/43283"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cloudthat.com\/resources\/wp-json\/"}],"wp:attachment":[{"href":"https:\/\/www.cloudthat.com\/resources\/wp-json\/wp\/v2\/media?parent=9715"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.cloudthat.com\/resources\/wp-json\/wp\/v2\/blog_category?post=9715"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}