first commit

compose.yml

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+services:
+  jenkins1:
+    image: jenkins/jenkins:lts
+    container_name: jenkins1
+    ports:
+      - "8081:8080"
+    volumes:
+      - jenkins_home1:/var/jenkins_home
+      - ./init.groovy.d:/var/jenkins_home/init.groovy.d
+    environment:
+      - JENKINS_USER=admin
+      - JENKINS_PASS=password
+    networks:
+      - jenkins_network
+
+  jenkins2:
+    image: jenkins/jenkins:lts
+    container_name: jenkins2
+    ports:
+      - "8082:8080"
+    volumes:
+      - jenkins_home2:/var/jenkins_home
+      - ./init.groovy.d:/var/jenkins_home/init.groovy.d
+    environment:
+      - JENKINS_USER=admin
+      - JENKINS_PASS=password
+    networks:
+      - jenkins_network
+
+  jenkins3:
+    image: jenkins/jenkins:lts
+    container_name: jenkins3
+    ports:
+      - "8083:8080"
+    volumes:
+      - jenkins_home3:/var/jenkins_home
+      - ./init.groovy.d:/var/jenkins_home/init.groovy.d
+    environment:
+      - JENKINS_USER=admin
+      - JENKINS_PASS=password
+    networks:
+      - jenkins_network
+
+  jenkins4:
+    image: jenkins/jenkins:lts
+    container_name: jenkins4
+    ports:
+      - "8084:8080"
+    volumes:
+      - jenkins_home4:/var/jenkins_home
+      - ./init.groovy.d:/var/jenkins_home/init.groovy.d
+    environment:
+      - JENKINS_USER=admin
+      - JENKINS_PASS=password
+    networks:
+      - jenkins_network
+
+  jenkins5:
+    image: jenkins/jenkins:lts
+    container_name: jenkins5
+    ports:
+      - "8085:8080"
+    volumes:
+      - jenkins_home5:/var/jenkins_home
+      - ./init.groovy.d:/var/jenkins_home/init.groovy.d
+    environment:
+      - JENKINS_USER=admin
+      - JENKINS_PASS=password
+    networks:
+      - jenkins_network
+
+volumes:
+  jenkins_home1:
+  jenkins_home2:
+  jenkins_home3:
+  jenkins_home4:
+  jenkins_home5:
+
+networks:
+  jenkins_network:

init.groovy.d/basic-security.groovy

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+import jenkins.model.*
+import hudson.security.*
+
+def instance = Jenkins.getInstance()
+
+// ユーザー名とパスワードを設定
+def adminUsername = System.getenv("JENKINS_USER") ?: "admin"
+def adminPassword = System.getenv("JENKINS_PASS") ?: "password"
+
+// セキュリティ設定を行い、管理者アカウントを作成
+def hudsonRealm = new HudsonPrivateSecurityRealm(false)
+hudsonRealm.createAccount(adminUsername, adminPassword)
+instance.setSecurityRealm(hudsonRealm)
+
+// 全ユーザーにアクセス権を付与
+def strategy = new FullControlOnceLoggedInAuthorizationStrategy()
+strategy.setAllowAnonymousRead(false)
+instance.setAuthorizationStrategy(strategy)
+
+instance.save()

init.groovy.d/customize-jenkins.groovy

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+import jenkins.model.*
+import hudson.security.*
+import jenkins.install.InstallState
+
+def instance = Jenkins.getInstance()
+
+// プラグインの自動インストール
+def pluginManager = instance.getPluginManager()
+def updateCenter = instance.getUpdateCenter()
+updateCenter.updateAllSites()
+
+// インストールするプラグインのリスト
+def plugins = [
+    "git",
+    "workflow-aggregator",
+    "credentials-binding",
+    "docker-plugin",
+    "docker-workflow",
+    "blueocean",
+    "slack-notification",
+    "pipeline-stage-view",
+    "email-ext"
+]
+
+// プラグインがインストールされていない場合はインストール
+plugins.each {
+    if (!pluginManager.getPlugin(it)) {
+        def plugin = updateCenter.getPlugin(it)
+        if (plugin) {
+            plugin.deploy()
+        }
+    }
+}
+
+// 初期セットアップの完了状態に設定
+instance.setInstallState(InstallState.INITIAL_SETUP_COMPLETED)
+instance.save()