Jenkins sur Debian 12

Installation de Jenkins sur Debian 12 Bookworm.

Composant	Version
Debian	12 Bookworm
Jenkins	LTS
Java	17

Durée estimée : 25 minutes

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1. Prérequis Java

apt update
apt install -y openjdk-17-jdk
java -version

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2. Installation Jenkins

curl -fsSL https://pkg.jenkins.io/debian-stable/jenkins.io-2023.key | tee /usr/share/keyrings/jenkins-keyring.asc > /dev/null

echo "deb [signed-by=/usr/share/keyrings/jenkins-keyring.asc] https://pkg.jenkins.io/debian-stable binary/" > /etc/apt/sources.list.d/jenkins.list

apt update
apt install -y jenkins
systemctl enable --now jenkins

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3. Firewall

ufw allow 8080/tcp
ufw reload

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4. Configuration initiale

# Mot de passe admin
cat /var/lib/jenkins/secrets/initialAdminPassword

1. Ouvrir http://IP:8080
2. Entrer le mot de passe
3. Installer plugins suggérés
4. Créer admin

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5. Docker (optionnel)

apt install -y ca-certificates curl gnupg
install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg
echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian $(. /etc/os-release && echo "$VERSION_CODENAME") stable" > /etc/apt/sources.list.d/docker.list
apt update
apt install -y docker-ce docker-ce-cli containerd.io

usermod -aG docker jenkins
systemctl restart jenkins

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6. Pipeline exemple

pipeline {
    agent any

    stages {
        stage('Build') {
            steps {
                sh 'echo "Building..."'
            }
        }
        stage('Test') {
            steps {
                sh 'echo "Testing..."'
            }
        }
        stage('Deploy') {
            steps {
                sh 'echo "Deploying..."'
            }
        }
    }

    post {
        always { cleanWs() }
    }
}

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7. Pipeline Docker

pipeline {
    agent {
        docker { image 'node:18-alpine' }
    }
    stages {
        stage('Build') {
            steps {
                sh 'npm install'
                sh 'npm run build'
            }
        }
    }
}

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8. Credentials

withCredentials([
    usernamePassword(
        credentialsId: 'my-creds',
        usernameVariable: 'USER',
        passwordVariable: 'PASS'
    )
]) {
    sh 'deploy.sh $USER $PASS'
}

---

9. Notifications

post {
    failure {
        mail to: 'team@example.com',
             subject: "Failed: ${currentBuild.fullDisplayName}",
             body: "Build failed: ${env.BUILD_URL}"
    }
}

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Comparatif Rocky vs Debian

Aspect	Rocky 9	Debian 12
Java	java-17-openjdk	openjdk-17-jdk
Repo key	rpm --import	apt keyrings
Firewall	firewalld	ufw

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Commandes

# Status
systemctl status jenkins

# Logs
journalctl -u jenkins -f

# Mot de passe initial
cat /var/lib/jenkins/secrets/initialAdminPassword

# Redémarrer
systemctl restart jenkins

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Changelog

Date	Modification
2024-12	Création initiale