--- title: "Copying Static Files to a CDN and Purging Cloudflare Cache via Jenkins Pipeline" description: "How to use a Jenkins Pipeline to automatically copy static assets to a CDN content server, then purge Cloudflare cache via API — saving manual deployment time." canonical_url: "https://blog.markkulab.net/en/post/jenkins-copy-file-to-cdn-and-clean-cloudflare-cahce" author: "Mark Ku" author_url: "https://blog.markkulab.net/en/author/mark-ku" site: "Mark Ku's Tech Notes" date_published: "2023-11-19 01:01:35 +0800" category: "DevOps" tags: ["jenkins", "cloudflare", "cdn", "pipeline", "automation", "powershell", "devops"] language: "en" license: "CC BY 4.0" license_url: "https://creativecommons.org/licenses/by/4.0/" attribution: "when reusing or quoting, credit the author and link back to the original" --- # Copying Static Files to a CDN and Purging Cloudflare Cache via Jenkins Pipeline ## Goal When working with various frontend frameworks, you always end up with static files. Manually copying them to a CDN takes too much time, so I spent some time writing a Jenkins script that automatically copies the static files to the CDN during the build, and purges the Cloudflare cache at the same time. ## First, when creating the "Live - Copy Next JS public folder to CDN assets" Jenkins Job, check "This project is parameterized" and add a String Parameter so you can pass optional parameters when running the job ![image](https://blog.markkulab.net/content/markku/posts/jenkins-copy-file-to-cdn-and-clean-cloudflare-cahce/images/1.png) ![image](https://blog.markkulab.net/content/markku/posts/jenkins-copy-file-to-cdn-and-clean-cloudflare-cahce/images/2.png) ### Next, write a pipeline that copies the project's `public` folder to the content server ``` properties([pipelineTriggers([githubPush()])]) pipeline { agent any tools {nodejs "Node Core"} options { buildDiscarder logRotator(artifactDaysToKeepStr: '', artifactNumToKeepStr: '20', daysToKeepStr: '', numToKeepStr: '20') disableConcurrentBuilds() } stages { stage("GitHub Pull") { steps { script { def branchName = CdnEnv if (CdnEnv == "staging") { branchName = "staging-master" } else if (CdnEnv == "production") { branchName = "master" } echo "CdnEnv value: ${env.CdnEnv}" echo "branchName value: ${branchName}" git branch: branchName, url: "https://xxxxxxxxxxxxxxxxxx@github.com/iBuypowerUS/iBuypower.NextJS.git" } } } stage("Copy assets to content server ") { steps { powershell(script: """ robocopy \"${WORKSPACE}\\public\" \"\\\\192.168.0.20\\Content\\\\${CdnEnv}\\assets\" /E /MIR /MT:100 \r\n """, returnStatus: true) } } } } ``` ### Then, when creating the "Live - Clear Cloudflare cache" Jenkins Job, also check "This project is parameterized" and add a String Parameter ![image](https://blog.markkulab.net/content/markku/posts/jenkins-copy-file-to-cdn-and-clean-cloudflare-cahce/images/3.png) ![image](https://blog.markkulab.net/content/markku/posts/jenkins-copy-file-to-cdn-and-clean-cloudflare-cahce/images/4.png) ### Pipeline for purging the Cloudflare cache ``` pipeline { agent any environment { CLOUDFLARE_EMAIL = 'mark.ku@xyz.com' CLOUDFLARE_API_KEY = 'xxxxxxx' CLOUDFLARE_ZONE_ID = 'xxxxxxxxxxxxxxxxxxxxxxxxx' } stages { stage('Purge Cloudflare Cache') { steps { script { // PowerShell script to purge Cloudflare cache powershell """ \$headers = @{ "X-Auth-Email" = "${env.CLOUDFLARE_EMAIL}" "X-Auth-Key" = "${env.CLOUDFLARE_API_KEY}" "Content-Type" = "application/json" } \$body = @{ prefixes = @("${PrefixUrl}") } | ConvertTo-Json \$response = Invoke-RestMethod -Uri "https://api.cloudflare.com/client/v4/zones/${env.CLOUDFLARE_ZONE_ID}/purge_cache" -Method POST -Headers \$headers -Body \$body Write-Host prefix: \"${PrefixUrl}\" - response: \$response """ } } } } } ``` ## Finally, other jobs can simply trigger these two ``` stages { stage('Copy Next JS public folder to CDN assets') { steps { script { build job: 'Live - Copy Next JS public folder to CDN assets', parameters: [string(name: 'CdnEnv', value: "$cdnEnv")] } } } stage('Clear Cloudflare cache') { steps { script { build job: 'Live - Clear Cloudflare cache' , parameters: [string(name: 'PrefixUrl', value: "content.ibuypower.com/$cdnEnv/assets")] } } } // Original process... ... } ``` ## P.S. Permission issues on Windows After installing Jenkins on Windows, certain commands or plugins easily run into permission errors because Jenkins runs under its own service account rather than an Administrator account. To fix this, press Ctrl+Windows, type `services.msc`, right-click the Jenkins service, open Properties, switch to the Log On tab, choose "This account", fill in `administrator` (or another privileged account) and its password, then restart the Jenkins service. ![image](https://blog.markkulab.net/content/markku/posts/jenkins-copy-file-to-cdn-and-clean-cloudflare-cahce/images/5.png) --- ## About this article and its author Originally published on [Mark Ku's Tech Notes](https://blog.markkulab.net/en/post/jenkins-copy-file-to-cdn-and-clean-cloudflare-cahce) License: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/) — when reusing or quoting, credit the author and link back to the original ### About the author **[Mark Ku](https://blog.markkulab.net/en/author/mark-ku)** — Software Solution Provider - 10+ years senior software engineer, now an AI Builder - Focused on large-platform architecture — North-American e-commerce, AI SaaS subscription billing - Combining AI Agents and automation to build evolvable product foundations ### Free tools built by the author All of these are free to use: - [Free PDF Sign Tool](https://blog.markkulab.net/en/tools/pdf-sign): Online PDF sign tool — draw, type, or upload a signature, then drag, resize, and download. 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No sign-up, nothing uploaded to a server, and mermaid.live share links work as-is. - [React Intl Phone Number](https://blog.markkulab.net/en/tools/react-intl-phone-number): react-intl-phone-number is an open-source React component: framework-agnostic and antd-free, with E.164 in/out, a searchable flag / country-code dropdown, configurable validation levels (strict / mobile-strict / loose), themeable CSS, and i18n — phone logic powered by google-libphonenumber. Lightweight and fully typed. Free and open source (MIT). - [Uptime Kuma Cluster](https://blog.markkulab.net/en/tools/uptime-kuma-cluster): Turn single-node Uptime Kuma into a highly available cluster: OpenResty + Lua smart load balancing, shared MariaDB state, health checks and automatic failover, plus cluster-management REST APIs. One Docker Compose command to start. 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