{
  "manifest_version": "1.0.0",
  "template": {
    "id": "72ec54e6-61a4-4122-9a2f-623c8cfab638",
    "slug": "kafka-kraft-with-ui",
    "name": "Kafka + Kafka UI — KRaft Streaming Stack",
    "description": "Single-node Kafka in KRaft mode with a web UI — no ZooKeeper",
    "url": "https://railway.com/deploy/kafka-kraft-with-ui",
    "upstream": {
      "image": "apache/kafka:latest"
    }
  },
  "services": [
    {
      "name": "Kafka",
      "source": {
        "image": "apache/kafka:latest"
      },
      "needs_volume": true,
      "volume_mount_path": "/var/lib/kafka/data",
      "http": false
    }
  ],
  "required_inputs": [
    {
      "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"
    },
    {
      "key": "KAFKA_LISTENERS",
      "service": "Kafka",
      "description": "Provide a value for KAFKA_LISTENERS.",
      "secret": false,
      "strategy": "default",
      "default": "INTERNAL://:9092,EXTERNAL://:9094,CONTROLLER://:9093"
    },
    {
      "key": "RAILWAY_RUN_UID",
      "service": "Kafka",
      "description": "Provide a value for RAILWAY_RUN_UID.",
      "secret": false,
      "strategy": "default",
      "default": "0"
    },
    {
      "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": "default",
      "default": "1@localhost:9093"
    },
    {
      "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": "INTERNAL"
    },
    {
      "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": "INTERNAL:PLAINTEXT,EXTERNAL:PLAINTEXT,CONTROLLER: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"
    }
  ],
  "deploy": {
    "mcp": {
      "server": "railway",
      "tool": "deploy_template",
      "args": {
        "template_code": "kafka-kraft-with-ui"
      }
    },
    "cli": "railway deploy --template kafka-kraft-with-ui",
    "api": {
      "method": "POST",
      "path": "/graphql/v2",
      "body": {
        "query": "mutation templateDeploy($input: TemplateDeployV2Input!) { templateDeployV2(input: $input) { projectId workflowId } }",
        "variables": {
          "input": {
            "templateId": "72ec54e6-61a4-4122-9a2f-623c8cfab638",
            "serializedConfig": {
              "services": {
                "0a1c01c1-b056-4d43-aa12-185a4dc17336": {
                  "icon": "https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQqOKEVxLEPXLVAhlOcrfBnIOTzoCU23BwUMA&s",
                  "name": "Kafka",
                  "source": {
                    "image": "apache/kafka:latest"
                  },
                  "variables": {
                    "KAFKA_NODE_ID": {
                      "isOptional": false,
                      "description": "",
                      "defaultValue": "1"
                    },
                    "KAFKA_LOG_DIRS": {
                      "isOptional": false,
                      "description": "",
                      "defaultValue": "/var/lib/kafka/data"
                    },
                    "KAFKA_LISTENERS": {
                      "isOptional": false,
                      "description": "",
                      "defaultValue": "INTERNAL://:9092,EXTERNAL://:9094,CONTROLLER://:9093"
                    },
                    "RAILWAY_RUN_UID": {
                      "isOptional": false,
                      "description": "",
                      "defaultValue": "0"
                    },
                    "KAFKA_PROCESS_ROLES": {
                      "isOptional": false,
                      "description": "",
                      "defaultValue": "broker,controller"
                    },
                    "KAFKA_ADVERTISED_LISTENERS": {
                      "isOptional": false,
                      "description": "",
                      "defaultValue": "INTERNAL://${{RAILWAY_PRIVATE_DOMAIN}}:9092,EXTERNAL://${{RAILWAY_TCP_PROXY_DOMAIN}}:${{RAILWAY_TCP_PROXY_PORT}}"
                    },
                    "KAFKA_CONTROLLER_QUORUM_VOTERS": {
                      "isOptional": false,
                      "description": "",
                      "defaultValue": "1@localhost:9093"
                    },
                    "KAFKA_CONTROLLER_LISTENER_NAMES": {
                      "isOptional": false,
                      "description": "",
                      "defaultValue": "CONTROLLER"
                    },
                    "KAFKA_INTER_BROKER_LISTENER_NAME": {
                      "isOptional": false,
                      "description": "",
                      "defaultValue": "INTERNAL"
                    },
                    "KAFKA_TRANSACTION_STATE_LOG_MIN_ISR": {
                      "isOptional": false,
                      "description": "",
                      "defaultValue": "1"
                    },
                    "KAFKA_LISTENER_SECURITY_PROTOCOL_MAP": {
                      "isOptional": false,
                      "description": "",
                      "defaultValue": "INTERNAL:PLAINTEXT,EXTERNAL:PLAINTEXT,CONTROLLER:PLAINTEXT"
                    },
                    "KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR": {
                      "isOptional": false,
                      "description": "",
                      "defaultValue": "1"
                    },
                    "KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR": {
                      "isOptional": false,
                      "description": "",
                      "defaultValue": "1"
                    }
                  },
                  "volumeMounts": {
                    "0a1c01c1-b056-4d43-aa12-185a4dc17336": {
                      "mountPath": "/var/lib/kafka/data"
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "post_deploy": {},
  "resources": {
    "expected_services": 1,
    "needs_volume": true
  },
  "generated_at": "2026-09-23T16:14:58.907Z",
  "generator_version": "0.1.0",
  "status": "degraded",
  "validated_at": "2026-09-22T13:45:43.990Z",
  "success_rate_30d": 0,
  "validation": {
    "last_run_id": "run_aaa60937eb52494eb11d",
    "checks": [
      {
        "name": "workflow_completed",
        "passed": true
      },
      {
        "name": "all_services_deployed",
        "passed": true
      },
      {
        "name": "stays_up",
        "passed": false,
        "detail": "1 service(s) crashed within 30s"
      }
    ]
  }
}