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https://github.com/harisekhon/jenkins
Jenkins CI/CD - Advanced Jenkinsfile & Groovy Shared Library of reusable functions and pipelines - AWS, GCP, Docker, Kubernetes, ArgoCD, Slack notifications, Git Merge, Terraform, Cloudflare, Jenkins Job Backups, most major Docker registries, DockerHub, GHCR, ECR, GCR, GAR, ACR, GitLab, Quay
https://github.com/harisekhon/jenkins
argocd aws ci ci-cd ci-cd-pipeline cicd cloudflare devops docker gcp gi gitops groovy hacktoberfest jenkins jenkins-ci jenkinsfile kubernetes library terraform
Last synced: 6 days ago
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Jenkins CI/CD - Advanced Jenkinsfile & Groovy Shared Library of reusable functions and pipelines - AWS, GCP, Docker, Kubernetes, ArgoCD, Slack notifications, Git Merge, Terraform, Cloudflare, Jenkins Job Backups, most major Docker registries, DockerHub, GHCR, ECR, GCR, GAR, ACR, GitLab, Quay
- Host: GitHub
- URL: https://github.com/harisekhon/jenkins
- Owner: HariSekhon
- License: mit
- Created: 2022-01-17T10:12:13.000Z (almost 3 years ago)
- Default Branch: master
- Last Pushed: 2024-10-11T22:49:31.000Z (2 months ago)
- Last Synced: 2024-12-08T01:30:44.574Z (15 days ago)
- Topics: argocd, aws, ci, ci-cd, ci-cd-pipeline, cicd, cloudflare, devops, docker, gcp, gi, gitops, groovy, hacktoberfest, jenkins, jenkins-ci, jenkinsfile, kubernetes, library, terraform
- Language: Groovy
- Homepage: https://www.linkedin.com/in/HariSekhon
- Size: 981 KB
- Stars: 68
- Watchers: 5
- Forks: 44
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
- Codeowners: .github/CODEOWNERS
Awesome Lists containing this project
README
# Jenkins - Advanced Jenkinsfile & Groovy Shared Library
[](https://github.com/HariSekhon/Jenkins/stargazers)
[](https://github.com/HariSekhon/Jenkins/network)
[](https://github.com/HariSekhon/Jenkins)
[](https://github.com/HariSekhon/Jenkins/blob/master/LICENSE)
[](https://www.linkedin.com/in/HariSekhon/)
[](https://github.com/HariSekhon/Jenkins/commits/master)
[](https://app.codacy.com/gh/HariSekhon/Jenkins/dashboard)
[](https://sonarcloud.io/summary/new_code?id=HariSekhon_Jenkins)
[](https://sonarcloud.io/summary/new_code?id=HariSekhon_Jenkins)
[](https://sonarcloud.io/summary/new_code?id=HariSekhon_Jenkins)
[](https://sonarcloud.io/summary/new_code?id=HariSekhon_Jenkins)
[](https://harisekhon.github.io/CI-CD/)
[](https://github.com/HariSekhon/Jenkins)
[](https://gitlab.com/HariSekhon/Jenkins)
[](https://dev.azure.com/harisekhon/GitHub/_git/Jenkins)
[](https://bitbucket.org/HariSekhon/Jenkins)
[](https://github.com/HariSekhon/Jenkins/actions/workflows/jenkinsfile.yaml)
[](https://github.com/HariSekhon/Jenkins/actions/workflows/groovyc.yaml)
[](https://github.com/HariSekhon/Jenkins/actions/workflows/yaml.yaml)
[](https://github.com/HariSekhon/Jenkins/actions/workflows/markdown.yaml)
[](https://github.com/HariSekhon/Jenkins/actions/workflows/validate.yaml)
[](https://github.com/HariSekhon/Jenkins/actions/workflows/grype.yaml)
[](https://github.com/HariSekhon/Jenkins/actions/workflows/kics.yaml)
[](https://github.com/HariSekhon/Jenkins/actions/workflows/semgrep.yaml)
[](https://github.com/HariSekhon/Jenkins/actions/workflows/semgrep-cloud.yaml)
[](https://github.com/HariSekhon/Jenkins/actions/workflows/sonarcloud.yaml)
[](https://github.com/HariSekhon/Jenkins/actions/workflows/trivy.yaml)
Advanced Jenkinsfile & Jenkins Shared Library.
- [Jenkinsfile](https://github.com/HariSekhon/Jenkins/blob/master/Jenkinsfile) - epic Jenkinsfile template - full of real-world tricks from Production
- [vars/](https://github.com/HariSekhon/Jenkins/tree/master/vars) - Groovy Shared Library reusable functions - used in Production for years
Additional Jenkins scripts are available in my [HariSekhon/DevOps-Bash-tools](https://github.com/HariSekhon/DevOps-Bash-tools) repo for Jenkins Rest API and Jenkins Groovy scripts for the Admin Script Console, and Jenkins-on-Kubernetes in my [HariSekhon/Kubernetes-configs](https://github.com/HariSekhon/Kubernetes-configs) repo.
## Useful Notes
[HariSekhon/Knowledge-Base - Jenkins](https://github.com/HariSekhon/Knowledge-Base/blob/main/jenkins.md)
[HariSekhon/Knowledge-Base - Jenkins-on-Kubernetes](https://github.com/HariSekhon/Knowledge-Base/blob/main/jenkins-on-kubernetes.md)
## QuickStart
Jenkinsfile:
```groovy
// load this library straight from github - the '_' at the end imports all functions
@Library('github.com/harisekhon/jenkins@master') _
pipeline {
stages {
stage('Simple Example'){
steps {
// call any function from this libary by its filename under vars/... without the .groovy extension
//
// see each var/.groovy file for any arguments
//
// calls vars/printEnv.groovy
printEnv()
// run logins for anything you have environment variable secrets/tokens for,
// including AWS, GCP, DockerHub, GHCR, ECR, GCR, GAR, ACR, GitLab, Quay
// see examples of individual service login functions in the next Stage
login()
// show all the cloud systems you're logged in to and who you're logged in as
printAuth()
// uses whichever package manager is available - portable, used by other functions too
installPackages(['curl', 'unzip'])
// launch a GCP Cloud Build job, by default against your cloudbuild.yaml if no args given
gcpCloudBuild()
// download tools to $HOME/bin
downloadTerraform('1.2.3')
downloadJenkinsCLI()
// prompts for human click approval before proceeding to next step ie. production deployment
approval()
// GitOps update docker image version for app1 & app2 in Kubernetes Kustomize
gitKustomizeImage(['myrepo/app1', 'myrepo/app2'])
// trigger ArgoCD deployment to Kubernetes for app 'my-app'
argoDeploy('my-app')
// see groovy files under vars/ for more documentation, details and many more useful functions
}
}
}
// send notifications on broken builds and recoveries
post {
failure {
// finds Git committers who broke build,
// resolves their Slack user IDs and
// actively notifies them with @user1 @user2 tags
slackNotify()
}
fixed {
// calls one or more notify functions to send Slack messages, emails etc.
// such as slackNotify()
// Uppercase N because lowercase clashes with java keyword
// Use Notify() instead of multiple calls to different notify functions
Notify()
}
}
}
```
some slightly more advanced functions:
```groovy
@Library('github.com/harisekhon/jenkins@master') _
pipeline {
stages {
stage('Advanced Example'){
steps {
// run individual login functions instead of login()
// log in to GCP cloud with a service account key
gcpActivateServiceAccount()
// set up GOOGLE_APPLICATION_CREDENTIALS keyfile for 3rd party apps like Terraform
gcpSetupApplicationCredentials()
// log in to DockerHub
dockerLogin()
// log in to AWS Elastic Container Registry
dockerLoginECR()
// log in to Google Container Registry
dockerLoginGCR()
// flexible custom targeted binary downloads instead of convenience functions like downloadTerraform(), downloadJenkinsCLI():
//
// download, extract and install a specific version of a binary to /usr/local/bin if root or $HOME/bin if run as a user
// here ${version} is a variable previously defined, while {os} and {arch} with no dollar sign are auto-inferred placeholders
installBinary(url: "https://releases.hashicorp.com/terraform/${version}/terraform_${version}_{os}_{arch}.zip", binary: 'terraform')
installBinary(url: "$JENKINS_URL/jnlpJars/jenkins-cli.jar")
// run a script with locks to prevent another script or deployment happening at same time
// newer runs will wait to acquire the locks, older pending runs will be skipped
// third arg is optional to time out this script after 30 minutes
scriptLockExecute('/path/to/script.sh', ['deployment lock', 'script lock'], 30)
// GitOps update docker image version for app1 & app2 in Kubernetes Kustomize, images served from GCR registry
gitKustomizeImage(["$GCR_REGISTRY/$GCR_PROJECT/app1", "$GCR_REGISTRY/$GCR_PROJECT/app2"])
// parallelizes deployments by triggering syncs before deployment wait
// if you want to save an extra 30 secs, use 2 parallel stages for these 2 syncs
argoSync('app1')
argoSync('app2')
// waits on each app being fully deployed and passing healthchecks
argoDeploy('app1')
argoDeploy('app2')
}
}
}
}
```
## Ready Made Pipeline Templates
### GCP CloudBuild and Deploy Docker Images to Kubernetes via ArgoCD
Builds Docker images and deploys them to [Kubernetes](https://github.com/HariSekhon/Kubernetes-configs) via [ArgoCD](https://github.com/HariSekhon/Kubernetes-configs/tree/master/argocd/base). Optionally scans the repo code, built container images, and purges Cloudflare Cache.
```groovy
@Library('github.com/harisekhon/jenkins@master') _
gcpDeployKubernetesPipeline(
project: 'my-gcp-project',
region: 'europe-west2',
app: 'my-app',
env: 'uk-production',
images: [
"my-app-webapp",
"my-app-sidecar",
],
gcr_registry: 'eu.gcr.io',
gcp_serviceaccount_key: 'jenkins-gcp-serviceaccount-key', // Jenkins credential id
cloudflare_email: '[email protected]', // optional, triggers Cloudflare Cache Purge
cloudflare_zone_id: '12a34b5c6d7ef8a901b2c3def45ab6c7', // if both these are set and Jenkins 'cloudflare-api-key' credential is available
)
```
See [gcpDeployKubernetesPipeline.groovy](https://github.com/HariSekhon/Jenkins/blob/master/vars/gcpDeployKubernetesPipeline.groovy) for more details, options etc.
See [Jenkins on Kubernetes Diagram](#jenkins-on-kubernetes-diagram) further down.
### Terraform CI/CD
Handles all logins, Terraform fmt, validate, plan, approval, apply etc.
Non-apply branches do Plan only so you can see if you want to merge.
On the apply branch, eg. `master` or `main`, only prompts for approval is there are actual changes in the Terraform plan output.
Saves the Terraform plan output and an approval will only apply that exact plan for safety.
```groovy
@Library('github.com/harisekhon/jenkins@master') _
terraformPipeline(version: '1.1.7',
dir: 'deployments/dev',
apply_branch_pattern: 'master',
creds: [
string(credentialsId: 'jenkins-gcp-serviceaccount-key', variable: 'GCP_SERVICEACCOUNT_KEY')
],
container: 'gcloud-sdk',
yamlFile: 'ci/kubernetes-agent-pod.yaml')
```
Applied, ignoring informational fmt check:
Plan found no changes so skipped Apply or asking for Approval:
Plan found changes but Approval was not authorized, so Apply did not proceed:
### Git Merges & Backports
Automatically merge one branch into another upon any change eg. backport between environment branches such as any hotfixes in Staging to Dev:
```groovy
@Library('github.com/harisekhon/jenkins@master') _
// git merge from staging branch into dev branch
gitMergePipeline('staging', 'dev')
```
### Git Update Jenkinsfile Library Tag
Enumerates all Jenkins Jobs and Git Tags and Branches to give user a pop-up with parameter choices about which Pipeline's Jenkinsfile to update its `@Library` tag for, and optionally build that pipeline afterwards.
```groovy
@Library('jenkins@master') _
jenkinsfileLibraryUpdatePipeline(
env: [
"[email protected]",
"JENKINS_CLI_ARGS=-webSocket"
],
creds: [string(credentialsId: 'job-config-backups', variable: 'JENKINS_API_TOKEN')],
container: 'gcloud-sdk',
yamlFile: 'ci/kubernetes-agent-pod.yaml'
)
```
### Jenkins Job Configuration Backups
Download and commit all Jenkins job configurations to the calling Git repo every 3 hours (configurable via optional `cron: '...'` parameter)
```groovy
@Library('github.com/harisekhon/jenkins@master') _
jenkinsBackupJobConfigsPipeline(
dir: 'jobs', // directory in current repo to download and git commit to
env: [
"[email protected]",
"JENKINS_CLI_ARGS=-webSocket" // -webSocket gets through reverse proxies like Kubernetes Ingress
],
creds: [
string(credentialsId: 'jenkins-api-token', variable: 'JENKINS_API_TOKEN')
],
container: 'gcloud-sdk',
yamlFile: 'ci/kubernetes-agent-pod.yaml')
)
```
## More Documentation
Read the comments at the top of each library function under [vars/](https://github.com/HariSekhon/Jenkins/tree/master/vars)`.groovy` for more details.
If you want to prevent changes to this library re-triggering the last run of your pipelines, configure it as a a Shared Library in your global Jenkins configuration and untick "Include @Library changes in job recent changes".
See this [Jenkins Documentation](https://www.jenkins.io/doc/book/pipeline/shared-libraries/#using-libraries) for more details.
## Jenkins on Kubernetes Diagram
For more excellent diagrams like this, see my Diagrams-as-Code repo:
## Production
### Option 1 - Hashref
Import the library as shown above directly from this repo, replacing `@master` with `@` to fix to an immutable version (tags are not immutable). This is a GitHub security best practice for CI/CD as seen in this [doc](https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-third-party-actions).
### Option 2 - Public Fork (fully automated)
Fork this repo for more control and visibility over all updates.
Enable the [fork-sync](https://github.com/HariSekhon/Jenkins/blob/master/.github/workflows/fork-sync.yaml) github actions workflow in your fork to keep the master branch sync'd every few hours.
You can then create tags or environment branches to stage updates across dev/staging/production.
If using environment branches, enable the [fork-update-pr](https://github.com/HariSekhon/Jenkins/blob/master/.github/workflows/fork-update-pr.yaml) github actions workflow to automatically raise GitHub Pull Requests for your environment branches to audit, authorize & control updates.
### Option 3 - Private Copy (semi-automated)
Download the functions you want into your private jenkins shared library repo.
You can use the [vars/download.sh](https://github.com/HariSekhon/Jenkins/blob/master/vars/download.sh) script to help you download given `*.groovy` files and periodically run it to get updates to these previously downloaded functions.
You will be responsible for committing and reconciling any divergences in your local copies.
## Star History
[](https://star-history.com/#HariSekhon/Jenkins&Date)
## More Core Repos
### Knowledge
[](https://github.com/HariSekhon/Knowledge-Base)
[](https://github.com/HariSekhon/Diagrams-as-Code)
### DevOps Code
[](https://github.com/HariSekhon/DevOps-Bash-tools)
[](https://github.com/HariSekhon/DevOps-Python-tools)
[](https://github.com/HariSekhon/DevOps-Perl-tools)
[](https://github.com/HariSekhon/DevOps-Golang-tools)
### Containerization
[](https://github.com/HariSekhon/Kubernetes-configs)
[](https://github.com/HariSekhon/Dockerfiles)
### CI/CD
[](https://github.com/HariSekhon/GitHub-Actions)
[](https://github.com/HariSekhon/Jenkins)
### DBA - SQL
[](https://github.com/HariSekhon/SQL-scripts)
### DevOps Reloaded
[](https://github.com/HariSekhon/Nagios-Plugins)
[](https://github.com/HariSekhon/HAProxy-configs)
[](https://github.com/HariSekhon/Terraform)
[](https://github.com/HariSekhon/Packer-templates)
[](https://github.com/HariSekhon/Nagios-Plugin-Kafka)
### Templates
[](https://github.com/HariSekhon/Templates)
[](https://github.com/HariSekhon/Template-repo)
### Misc
[](https://github.com/HariSekhon/Spotify-tools)
[](https://github.com/HariSekhon/Spotify-playlists)
The rest of my original source repos are
[here](https://github.com/HariSekhon?tab=repositories&q=&type=source&language=&sort=stargazers).
Pre-built Docker images are available on my [DockerHub](https://hub.docker.com/u/harisekhon/).
