{
  "manifest_version": "1.0.0",
  "template": {
    "id": "c781721a-9dfe-4600-b219-19cce2728fa7",
    "slug": "kafka-stack",
    "name": "Kafka Stack",
    "description": "Apache Kafka (KRaft) and Kafbat UI in one click. No ZooKeeper needed.",
    "url": "https://railway.com/deploy/kafka-stack",
    "upstream": {
      "image": "ghcr.io/kafbat/kafka-ui:latest"
    }
  },
  "services": [
    {
      "name": "kafka",
      "source": {
        "image": "apache/kafka:latest"
      },
      "needs_volume": false,
      "http": false
    },
    {
      "name": "kafka-ui",
      "source": {
        "image": "ghcr.io/kafbat/kafka-ui:latest"
      },
      "needs_volume": true,
      "volume_mount_path": "/etc/kafkaui",
      "http": true
    }
  ],
  "required_inputs": [
    {
      "key": "CLUSTER_ID",
      "service": "kafka",
      "description": "Provide a value for CLUSTER_ID.",
      "secret": false,
      "strategy": "default",
      "default": "MkU3OEVBNTcwNTJENDM2Qk"
    },
    {
      "key": "KAFKA_NODE_ID",
      "service": "kafka",
      "description": "Provide a value for KAFKA_NODE_ID.",
      "secret": false,
      "strategy": "default",
      "default": "1"
    },
    {
      "key": "KAFKA_LOG_DIRS",
      "service": "kafka",
      "description": "Provide a value for KAFKA_LOG_DIRS.",
      "secret": false,
      "strategy": "default",
      "default": "/var/lib/kafka/data/kraft-combined-logs"
    },
    {
      "key": "KAFKA_LISTENERS",
      "service": "kafka",
      "description": "Provide a value for KAFKA_LISTENERS.",
      "secret": false,
      "strategy": "default",
      "default": "PLAINTEXT://0.0.0.0:9092,CONTROLLER://0.0.0.0:9093"
    },
    {
      "key": "KAFKA_PROCESS_ROLES",
      "service": "kafka",
      "description": "Provide a value for KAFKA_PROCESS_ROLES.",
      "secret": false,
      "strategy": "default",
      "default": "broker,controller"
    },
    {
      "key": "KAFKA_ADVERTISED_LISTENERS",
      "service": "kafka",
      "description": "Provide a value for KAFKA_ADVERTISED_LISTENERS.",
      "secret": false,
      "strategy": "railway_provided",
      "railway_source": "railway_private_domain"
    },
    {
      "key": "KAFKA_CONTROLLER_QUORUM_VOTERS",
      "service": "kafka",
      "description": "Provide a value for KAFKA_CONTROLLER_QUORUM_VOTERS.",
      "secret": false,
      "strategy": "railway_provided",
      "railway_source": "railway_private_domain"
    },
    {
      "key": "KAFKA_AUTO_CREATE_TOPICS_ENABLE",
      "service": "kafka",
      "description": "Provide a value for KAFKA_AUTO_CREATE_TOPICS_ENABLE.",
      "secret": false,
      "strategy": "default",
      "default": "true"
    },
    {
      "key": "KAFKA_CONTROLLER_LISTENER_NAMES",
      "service": "kafka",
      "description": "Provide a value for KAFKA_CONTROLLER_LISTENER_NAMES.",
      "secret": false,
      "strategy": "default",
      "default": "CONTROLLER"
    },
    {
      "key": "KAFKA_INTER_BROKER_LISTENER_NAME",
      "service": "kafka",
      "description": "Provide a value for KAFKA_INTER_BROKER_LISTENER_NAME.",
      "secret": false,
      "strategy": "default",
      "default": "PLAINTEXT"
    },
    {
      "key": "KAFKA_TRANSACTION_STATE_LOG_MIN_ISR",
      "service": "kafka",
      "description": "Provide a value for KAFKA_TRANSACTION_STATE_LOG_MIN_ISR.",
      "secret": false,
      "strategy": "default",
      "default": "1"
    },
    {
      "key": "KAFKA_LISTENER_SECURITY_PROTOCOL_MAP",
      "service": "kafka",
      "description": "Provide a value for KAFKA_LISTENER_SECURITY_PROTOCOL_MAP.",
      "secret": false,
      "strategy": "default",
      "default": "CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT"
    },
    {
      "key": "KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR",
      "service": "kafka",
      "description": "Provide a value for KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR.",
      "secret": false,
      "strategy": "default",
      "default": "1"
    },
    {
      "key": "KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR",
      "service": "kafka",
      "description": "Provide a value for KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR.",
      "secret": false,
      "strategy": "default",
      "default": "1"
    },
    {
      "key": "AUTH_TYPE",
      "service": "kafka-ui",
      "description": "Provide a value for AUTH_TYPE.",
      "secret": false,
      "strategy": "default",
      "default": "LOGIN_FORM"
    },
    {
      "key": "SERVER_PORT",
      "service": "kafka-ui",
      "description": "Provide a value for SERVER_PORT.",
      "secret": false,
      "strategy": "default",
      "default": "8080"
    },
    {
      "key": "KAFKA_CLUSTERS_0_NAME",
      "service": "kafka-ui",
      "description": "Provide a value for KAFKA_CLUSTERS_0_NAME.",
      "secret": false,
      "strategy": "default",
      "default": "local"
    },
    {
      "key": "DYNAMIC_CONFIG_ENABLED",
      "service": "kafka-ui",
      "description": "Provide a value for DYNAMIC_CONFIG_ENABLED.",
      "secret": false,
      "strategy": "default",
      "default": "true"
    },
    {
      "key": "SPRING_SECURITY_USER_NAME",
      "service": "kafka-ui",
      "description": "Provide a value for SPRING_SECURITY_USER_NAME.",
      "secret": false,
      "strategy": "default",
      "default": "kafka"
    },
    {
      "key": "SPRING_SECURITY_USER_PASSWORD",
      "service": "kafka-ui",
      "description": "Provide a value for SPRING_SECURITY_USER_PASSWORD.",
      "secret": true,
      "strategy": "generate",
      "generate": "strong_password"
    },
    {
      "key": "KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS",
      "service": "kafka-ui",
      "description": "Provide a value for KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS.",
      "secret": false,
      "strategy": "railway_provided",
      "railway_source": "railway_private_domain"
    }
  ],
  "deploy": {
    "mcp": {
      "server": "railway",
      "tool": "deploy_template",
      "args": {
        "template_code": "kafka-stack"
      }
    },
    "cli": "railway deploy --template kafka-stack",
    "api": {
      "method": "POST",
      "path": "/graphql/v2",
      "body": {
        "query": "mutation templateDeploy($input: TemplateDeployV2Input!) { templateDeployV2(input: $input) { projectId workflowId } }",
        "variables": {
          "input": {
            "templateId": "c781721a-9dfe-4600-b219-19cce2728fa7",
            "serializedConfig": {
              "services": {
                "1a173b44-8396-4138-b8cb-291b40c08f6a": {
                  "icon": "https://svn.apache.org/repos/asf/kafka/site/logos/originals/png/ICON%20-%20White%20on%20Transparent.png",
                  "name": "kafka",
                  "source": {
                    "image": "apache/kafka:latest"
                  },
                  "variables": {
                    "CLUSTER_ID": {
                      "defaultValue": "MkU3OEVBNTcwNTJENDM2Qk"
                    },
                    "KAFKA_NODE_ID": {
                      "defaultValue": "1"
                    },
                    "KAFKA_LOG_DIRS": {
                      "defaultValue": "/var/lib/kafka/data/kraft-combined-logs"
                    },
                    "KAFKA_LISTENERS": {
                      "defaultValue": "PLAINTEXT://0.0.0.0:9092,CONTROLLER://0.0.0.0:9093"
                    },
                    "KAFKA_PROCESS_ROLES": {
                      "defaultValue": "broker,controller"
                    },
                    "KAFKA_ADVERTISED_LISTENERS": {
                      "defaultValue": "PLAINTEXT://${{RAILWAY_PRIVATE_DOMAIN}}:9092"
                    },
                    "KAFKA_CONTROLLER_QUORUM_VOTERS": {
                      "defaultValue": "1@${{RAILWAY_PRIVATE_DOMAIN}}:9093"
                    },
                    "KAFKA_AUTO_CREATE_TOPICS_ENABLE": {
                      "defaultValue": "true"
                    },
                    "KAFKA_CONTROLLER_LISTENER_NAMES": {
                      "defaultValue": "CONTROLLER"
                    },
                    "KAFKA_INTER_BROKER_LISTENER_NAME": {
                      "defaultValue": "PLAINTEXT"
                    },
                    "KAFKA_TRANSACTION_STATE_LOG_MIN_ISR": {
                      "defaultValue": "1"
                    },
                    "KAFKA_LISTENER_SECURITY_PROTOCOL_MAP": {
                      "defaultValue": "CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT"
                    },
                    "KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR": {
                      "defaultValue": "1"
                    },
                    "KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR": {
                      "defaultValue": "1"
                    }
                  },
                  "volumeMounts": {}
                },
                "3a7aa7e7-fbc3-495c-9102-d6bd1495b746": {
                  "icon": "https://svn.apache.org/repos/asf/kafka/site/logos/originals/png/ICON%20-%20White%20on%20Transparent.png",
                  "name": "kafka-ui",
                  "source": {
                    "image": "ghcr.io/kafbat/kafka-ui:latest"
                  },
                  "variables": {
                    "AUTH_TYPE": {
                      "defaultValue": "LOGIN_FORM"
                    },
                    "SERVER_PORT": {
                      "defaultValue": "8080"
                    },
                    "KAFKA_CLUSTERS_0_NAME": {
                      "defaultValue": "local"
                    },
                    "DYNAMIC_CONFIG_ENABLED": {
                      "defaultValue": "true"
                    },
                    "SPRING_SECURITY_USER_NAME": {
                      "defaultValue": "kafka"
                    },
                    "SPRING_SECURITY_USER_PASSWORD": {
                      "defaultValue": "{{SPRING_SECURITY_USER_PASSWORD}}"
                    },
                    "KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS": {
                      "defaultValue": "${{kafka.RAILWAY_PRIVATE_DOMAIN}}:9092"
                    }
                  },
                  "networking": {
                    "serviceDomains": {
                      "<hasDomain>:8080": {
                        "port": 8080
                      }
                    }
                  },
                  "volumeMounts": {
                    "3a7aa7e7-fbc3-495c-9102-d6bd1495b746": {
                      "mountPath": "/etc/kafkaui"
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "post_deploy": {},
  "resources": {
    "expected_services": 2,
    "needs_volume": true
  },
  "generated_at": "2026-09-10T16:14:52.212Z",
  "generator_version": "0.1.0",
  "status": "validated",
  "validated_at": "2026-09-09T08:21:52.453Z",
  "success_rate_30d": 1,
  "validation": {
    "last_run_id": "run_67313da5325d452f8f4c",
    "checks": [
      {
        "name": "workflow_completed",
        "passed": true
      },
      {
        "name": "all_services_deployed",
        "passed": true
      },
      {
        "name": "stays_up",
        "passed": true
      }
    ],
    "typical_ready_seconds": 83,
    "typical_build_seconds": 0,
    "typical_start_seconds": 10,
    "slowest_service": "kafka-ui"
  }
}