gistfile1.txt

# Directory where plugin .hpi files will be stored
# File: plugins.yaml

# Define plugins with specific versions
# Example YAML file to track plugin versions

---
plugins:
  - name: git
    version: 5.1.0
  - name: credentials
    version: 1271.v54b_1c2c6388a_
  - name: ssh-slaves
    version: 1.32.0

# download_plugins.sh
# Run this shell script to download specified versions of Jenkins plugins

#!/bin/bash
set -euo pipefail

REPO_URL="https://raw.githubusercontent.com/YOUR_GITHUB_USER/YOUR_REPO_NAME/main/plugins.yaml"
PLUGINS_YAML="plugins.yaml"
JENKINS_PLUGIN_DIR=plugins
UPDATE_CENTER="https://updates.jenkins.io/download/plugins"

echo "📥 Downloading plugins.yaml from GitHub..."
curl -fsSL "$REPO_URL" -o "$PLUGINS_YAML"

mkdir -p "$JENKINS_PLUGIN_DIR"

for row in $(yq -r '.plugins[] | @base64' "$PLUGINS_YAML"); do
    _jq() {
        echo ${row} | base64 --decode | jq -r ${1}
    }
    name=$(_jq '.name')
    version=$(_jq '.version')
    echo "⬇ Downloading $name:$version"
    curl -fsSL "$UPDATE_CENTER/$name/$version/$name.hpi" -o "$JENKINS_PLUGIN_DIR/$name.hpi"
done

# init.groovy.d/install_plugins.groovy
// Place this in Jenkins /var/lib/jenkins/init.groovy.d/

import jenkins.model.*
import hudson.PluginWrapper

Jenkins.instance.pluginManager.doCheckUpdatesServer()

File pluginDir = new File(Jenkins.instance.rootDir, "plugins")
pluginDir.listFiles().each { file ->
    if (file.name.endsWith(".hpi")) {
        def shortName = file.name.replace(".hpi", "")
        if (!Jenkins.instance.pluginManager.getPlugin(shortName)) {
            println "Installing plugin: ${shortName}"
            Jenkins.instance.pluginManager.dynamicLoad(file)
        }
    }
}
Jenkins.instance.save()

println "Plugin installation completed."