{
  "manifest_version": "1.0.0",
  "template": {
    "id": "3593f7a7-ced3-4a1e-b543-8fc80e8082a9",
    "slug": "langflow-or-visual-ai-workflow-builder-w",
    "name": "Langflow | Visual AI Workflow Builder with Postgres and a Real Volume",
    "description": "Self-host Langflow on Railway — flows, Postgres & files that persist.",
    "url": "https://railway.com/deploy/langflow-or-visual-ai-workflow-builder-w",
    "upstream": {
      "image": "langflowai/langflow:1.11.3"
    }
  },
  "status": "unvalidated",
  "validated_at": null,
  "success_rate_30d": null,
  "services": [
    {
      "name": "Postgres",
      "source": {
        "image": "ghcr.io/railwayapp-templates/postgres-ssl:18"
      },
      "needs_volume": true,
      "volume_mount_path": "/var/lib/postgresql/data",
      "tcp_ports": [
        5432
      ],
      "http": false
    },
    {
      "name": "Langflow",
      "source": {
        "image": "langflowai/langflow:1.11.3"
      },
      "needs_volume": true,
      "volume_mount_path": "/app/langflow",
      "http": true
    }
  ],
  "required_inputs": [
    {
      "key": "PGDATA",
      "service": "Postgres",
      "description": "Location where the database will be initialized",
      "secret": false,
      "strategy": "default",
      "default": "/var/lib/postgresql/data/pgdata"
    },
    {
      "key": "PGHOST",
      "service": "Postgres",
      "description": "Railway Private Domain Name.",
      "secret": false,
      "strategy": "railway_provided",
      "railway_source": "railway_private_domain"
    },
    {
      "key": "PGPORT",
      "service": "Postgres",
      "description": "Port to connect to Postgres.",
      "secret": false,
      "strategy": "default",
      "default": "5432"
    },
    {
      "key": "PGUSER",
      "service": "Postgres",
      "description": "Required variable for Data panel",
      "secret": false,
      "strategy": "railway_provided",
      "railway_source": "reference_variable"
    },
    {
      "key": "PGDATABASE",
      "service": "Postgres",
      "description": "Required variable for the data panel.",
      "secret": false,
      "strategy": "railway_provided",
      "railway_source": "reference_variable"
    },
    {
      "key": "PGPASSWORD",
      "service": "Postgres",
      "description": "Required variable for Data panel",
      "secret": true,
      "strategy": "railway_provided",
      "railway_source": "reference_variable"
    },
    {
      "key": "POSTGRES_DB",
      "service": "Postgres",
      "description": "Default database created when image is started.",
      "secret": false,
      "strategy": "default",
      "default": "railway"
    },
    {
      "key": "DATABASE_URL",
      "service": "Postgres",
      "description": "URL to connect to Postgres database.",
      "secret": false,
      "strategy": "railway_provided",
      "railway_source": "railway_private_domain"
    },
    {
      "key": "POSTGRES_USER",
      "service": "Postgres",
      "description": "User to connect to Postgres DB",
      "secret": false,
      "strategy": "default",
      "default": "postgres"
    },
    {
      "key": "SSL_CERT_DAYS",
      "service": "Postgres",
      "description": "SSL certificate expiry in days.",
      "secret": false,
      "strategy": "default",
      "default": "820"
    },
    {
      "key": "POSTGRES_PASSWORD",
      "service": "Postgres",
      "description": "Password to connect to DB",
      "secret": true,
      "strategy": "generate",
      "generate": "strong_password"
    },
    {
      "key": "DATABASE_PUBLIC_URL",
      "service": "Postgres",
      "description": "Public URL to connect to Postgres database, used by the Data panel.",
      "secret": false,
      "strategy": "railway_provided",
      "railway_source": "reference_variable"
    },
    {
      "key": "RAILWAY_DEPLOYMENT_DRAINING_SECONDS",
      "service": "Postgres",
      "description": "Allow Postgres to cleanly shut down",
      "secret": false,
      "strategy": "default",
      "default": "60"
    },
    {
      "key": "LANGFLOW_HOST",
      "service": "Langflow",
      "description": "Provide a value for LANGFLOW_HOST.",
      "secret": false,
      "strategy": "default",
      "default": "0.0.0.0"
    },
    {
      "key": "LANGFLOW_PORT",
      "service": "Langflow",
      "description": "Provide a value for LANGFLOW_PORT.",
      "secret": false,
      "strategy": "default",
      "default": "7860"
    },
    {
      "key": "RAILWAY_RUN_UID",
      "service": "Langflow",
      "description": "Provide a value for RAILWAY_RUN_UID.",
      "secret": false,
      "strategy": "default",
      "default": "0"
    },
    {
      "key": "LANGFLOW_LOG_LEVEL",
      "service": "Langflow",
      "description": "Provide a value for LANGFLOW_LOG_LEVEL.",
      "secret": false,
      "strategy": "default",
      "default": "INFO"
    },
    {
      "key": "LANGFLOW_SUPERUSER",
      "service": "Langflow",
      "description": "Provide a value for LANGFLOW_SUPERUSER.",
      "secret": false,
      "strategy": "default",
      "default": "admin"
    },
    {
      "key": "LANGFLOW_AUTO_LOGIN",
      "service": "Langflow",
      "description": "Provide a value for LANGFLOW_AUTO_LOGIN.",
      "secret": false,
      "strategy": "default",
      "default": "false"
    },
    {
      "key": "LANGFLOW_CONFIG_DIR",
      "service": "Langflow",
      "description": "Provide a value for LANGFLOW_CONFIG_DIR.",
      "secret": false,
      "strategy": "default",
      "default": "/app/langflow"
    },
    {
      "key": "LANGFLOW_SECRET_KEY",
      "service": "Langflow",
      "description": "Provide a value for LANGFLOW_SECRET_KEY.",
      "secret": true,
      "strategy": "generate",
      "generate": "random_base64_32"
    },
    {
      "key": "LANGFLOW_DATABASE_URL",
      "service": "Langflow",
      "description": "Provide a value for LANGFLOW_DATABASE_URL.",
      "secret": false,
      "strategy": "railway_provided",
      "railway_source": "reference_variable"
    },
    {
      "key": "LANGFLOW_SUPERUSER_PASSWORD",
      "service": "Langflow",
      "description": "Provide a value for LANGFLOW_SUPERUSER_PASSWORD.",
      "secret": true,
      "strategy": "generate",
      "generate": "strong_password"
    }
  ],
  "deploy": {
    "mcp": {
      "server": "railway",
      "tool": "deploy_template",
      "args": {
        "template_code": "langflow-or-visual-ai-workflow-builder-w"
      }
    },
    "cli": "railway deploy --template langflow-or-visual-ai-workflow-builder-w",
    "api": {
      "method": "POST",
      "path": "/graphql/v2",
      "body": {
        "query": "mutation templateDeploy($input: TemplateDeployV2Input!) { templateDeployV2(input: $input) { projectId workflowId } }",
        "variables": {
          "input": {
            "templateId": "3593f7a7-ced3-4a1e-b543-8fc80e8082a9",
            "serializedConfig": {
              "services": {
                "52b253e9-28ce-455a-92b1-e600fe55a0f1": {
                  "icon": "https://devicons.railway.app/i/postgresql.svg",
                  "name": "Postgres",
                  "build": {},
                  "deploy": {
                    "requiredMountPath": "/var/lib/postgresql/data"
                  },
                  "source": {
                    "image": "ghcr.io/railwayapp-templates/postgres-ssl:18"
                  },
                  "variables": {
                    "PGDATA": {
                      "isOptional": false,
                      "description": "Location where the database will be initialized",
                      "defaultValue": "/var/lib/postgresql/data/pgdata"
                    },
                    "PGHOST": {
                      "isOptional": false,
                      "description": "Railway Private Domain Name.",
                      "defaultValue": "${{RAILWAY_PRIVATE_DOMAIN}}"
                    },
                    "PGPORT": {
                      "isOptional": false,
                      "description": "Port to connect to Postgres.",
                      "defaultValue": "5432"
                    },
                    "PGUSER": {
                      "isOptional": false,
                      "description": "Required variable for Data panel",
                      "defaultValue": "${{ POSTGRES_USER }}"
                    },
                    "PGDATABASE": {
                      "isOptional": false,
                      "description": "Required variable for the data panel.",
                      "defaultValue": "${{POSTGRES_DB}}"
                    },
                    "PGPASSWORD": {
                      "isOptional": false,
                      "description": "Required variable for Data panel",
                      "defaultValue": "${{POSTGRES_PASSWORD}}"
                    },
                    "POSTGRES_DB": {
                      "isOptional": false,
                      "description": "Default database created when image is started.",
                      "defaultValue": "railway"
                    },
                    "DATABASE_URL": {
                      "isOptional": false,
                      "description": "URL to connect to Postgres database.",
                      "defaultValue": "postgresql://${{PGUSER}}:${{POSTGRES_PASSWORD}}@${{RAILWAY_PRIVATE_DOMAIN}}:5432/${{PGDATABASE}}"
                    },
                    "POSTGRES_USER": {
                      "isOptional": false,
                      "description": "User to connect to Postgres DB",
                      "defaultValue": "postgres"
                    },
                    "SSL_CERT_DAYS": {
                      "isOptional": true,
                      "description": "SSL certificate expiry in days.",
                      "defaultValue": "820"
                    },
                    "POSTGRES_PASSWORD": {
                      "isOptional": false,
                      "description": "Password to connect to DB",
                      "defaultValue": "{{POSTGRES_PASSWORD}}"
                    },
                    "DATABASE_PUBLIC_URL": {
                      "description": "Public URL to connect to Postgres database, used by the Data panel.",
                      "defaultValue": "postgresql://${{PGUSER}}:${{POSTGRES_PASSWORD}}@${{RAILWAY_TCP_PROXY_DOMAIN}}:${{RAILWAY_TCP_PROXY_PORT}}/${{PGDATABASE}}"
                    },
                    "RAILWAY_DEPLOYMENT_DRAINING_SECONDS": {
                      "isOptional": false,
                      "description": "Allow Postgres to cleanly shut down",
                      "defaultValue": "60"
                    }
                  },
                  "networking": {
                    "tcpProxies": {
                      "5432": {}
                    },
                    "serviceDomains": {}
                  },
                  "volumeMounts": {
                    "52b253e9-28ce-455a-92b1-e600fe55a0f1": {
                      "mountPath": "/var/lib/postgresql/data"
                    }
                  },
                  "haTemplateCode": "postgres-ha",
                  "haConversionConfig": {
                    "edge": {
                      "label": "Reverse Proxy",
                      "options": [
                        2,
                        3,
                        4,
                        5
                      ],
                      "nodeLabel": "HAProxy",
                      "description": "Routes traffic to the primary",
                      "defaultValue": 3
                    },
                    "replica": {
                      "label": "Replicas",
                      "options": [
                        2,
                        3,
                        4,
                        5,
                        6,
                        7
                      ],
                      "nodeLabel": "Postgres",
                      "description": "Streaming replicas for automatic failover",
                      "defaultValue": 2
                    },
                    "internal": {
                      "label": "Coordinator Nodes",
                      "options": [
                        3,
                        5,
                        7,
                        9
                      ],
                      "nodeLabel": "etcd",
                      "defaultValue": 3
                    },
                    "description": "This will convert your Postgres database to an HA cluster with Patroni failover and etcd consensus."
                  }
                },
                "6cb7b52c-ba02-4b4b-a55e-da76bbca59e0": {
                  "name": "Langflow",
                  "source": {
                    "image": "langflowai/langflow:1.11.3"
                  },
                  "variables": {
                    "LANGFLOW_HOST": {
                      "defaultValue": "0.0.0.0"
                    },
                    "LANGFLOW_PORT": {
                      "defaultValue": "7860"
                    },
                    "RAILWAY_RUN_UID": {
                      "defaultValue": "0"
                    },
                    "LANGFLOW_LOG_LEVEL": {
                      "defaultValue": "INFO"
                    },
                    "LANGFLOW_SUPERUSER": {
                      "defaultValue": "admin"
                    },
                    "LANGFLOW_AUTO_LOGIN": {
                      "defaultValue": "false"
                    },
                    "LANGFLOW_CONFIG_DIR": {
                      "defaultValue": "/app/langflow"
                    },
                    "LANGFLOW_SECRET_KEY": {
                      "defaultValue": "{{LANGFLOW_SECRET_KEY}}"
                    },
                    "LANGFLOW_DATABASE_URL": {
                      "defaultValue": "${{Postgres.DATABASE_URL}}"
                    },
                    "LANGFLOW_SUPERUSER_PASSWORD": {
                      "defaultValue": "{{LANGFLOW_SUPERUSER_PASSWORD}}"
                    }
                  },
                  "networking": {
                    "serviceDomains": {
                      "<hasDomain>:7860": {
                        "port": 7860
                      }
                    }
                  },
                  "volumeMounts": {
                    "6cb7b52c-ba02-4b4b-a55e-da76bbca59e0": {
                      "mountPath": "/app/langflow"
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "post_deploy": {},
  "resources": {
    "expected_services": 2,
    "needs_volume": true
  },
  "generated_at": "2026-09-04T17:54:19.363Z",
  "generator_version": "0.1.0"
}