{ "manifest_version": "1.0.0", "template": { "id": "3d34edaf-f313-48fa-9b28-be4abb049a27", "slug": "lowcoder", "name": "Lowcoder | Open-Source Retool Alternative with MongoDB & Redis", "description": "Drag-and-drop internal tools, admin panels and dashboards, self-hosted", "url": "https://railway.com/deploy/lowcoder", "upstream": { "image": "lowcoderorg/lowcoder-ce-frontend:2.7.6" } }, "status": "unvalidated", "validated_at": null, "success_rate_30d": null, "services": [ { "name": "Redis", "source": { "image": "redis:8.10.2-alpine" }, "needs_volume": true, "volume_mount_path": "/data", "http": false }, { "name": "lowcoder-node", "source": { "image": "lowcoderorg/lowcoder-ce-node-service:2.7.6" }, "needs_volume": false, "http": false }, { "name": "lowcoder-api", "source": { "image": "lowcoderorg/lowcoder-ce-api-service:2.7.6" }, "needs_volume": false, "http": false }, { "name": "MongoDB", "source": { "image": "mongo:7.0.43" }, "needs_volume": true, "volume_mount_path": "/data/db", "http": false }, { "name": "Lowcoder", "source": { "image": "lowcoderorg/lowcoder-ce-frontend:2.7.6" }, "needs_volume": false, "http": true } ], "required_inputs": [ { "key": "REDIS_PASSWORD", "service": "Redis", "description": "Auto-generated Redis password", "secret": true, "strategy": "generate", "generate": "strong_password" }, { "key": "PORT", "service": "lowcoder-node", "description": "Port the Node service listens on - leave as is", "secret": false, "strategy": "default", "default": "6060" }, { "key": "API_HOST", "service": "lowcoder-node", "description": "API service on the private network", "secret": false, "strategy": "railway_provided", "railway_source": "railway_private_domain" }, { "key": "NODE_OPTIONS", "service": "lowcoder-node", "description": "Node heap cap - the bundled data source plugins need about 300 MB at boot", "secret": false, "strategy": "default", "default": "--max-old-space-size=384" }, { "key": "LOWCODER_NODE_SERVICE_SECRET", "service": "lowcoder-node", "description": "Encrypts data source configs exchanged with the API service (generated)", "secret": true, "strategy": "generate", "generate": "random_base64_32" }, { "key": "LOWCODER_NODE_SERVICE_SECRET_SALT", "service": "lowcoder-node", "description": "Salt for the secret above (generated)", "secret": true, "strategy": "generate", "generate": "random_base64_32" }, { "key": "PORT", "service": "lowcoder-api", "description": "Port the API service listens on - leave as is", "secret": false, "strategy": "default", "default": "8080" }, { "key": "JAVA_OPTS", "service": "lowcoder-api", "description": "JVM memory caps so the API service fits in 512 MB (Trial). On Hobby you can raise -Xmx (e.g. 768m) for large query results and drop TieredStopAtLevel=1 for full JIT", "secret": false, "strategy": "default", "default": "-Xms64m -Xmx256m -XX:MaxMetaspaceSize=160m -XX:ReservedCodeCacheSize=48m -XX:TieredStopAtLevel=1 -XX:MaxDirectMemorySize=64m -Xss512k -XX:+UseSerialGC" }, { "key": "MALLOC_ARENA_MAX", "service": "lowcoder-api", "description": "Limits glibc malloc arenas - keeps the JVM's native memory small", "secret": false, "strategy": "default", "default": "2" }, { "key": "LOWCODER_REDIS_URL", "service": "lowcoder-api", "description": "Redis on the private network", "secret": false, "strategy": "railway_provided", "railway_source": "railway_private_domain" }, { "key": "LOWCODER_PUBLIC_URL", "service": "lowcoder-api", "description": "Public URL of Lowcoder (invite links, emails, OAuth callbacks) - set it to your custom domain after adding one", "secret": false, "strategy": "railway_provided", "railway_source": "railway_domain" }, { "key": "LOWCODER_MONGODB_URL", "service": "lowcoder-api", "description": "MongoDB on the private network", "secret": false, "strategy": "railway_provided", "railway_source": "railway_private_domain" }, { "key": "LOWCODER_API_KEY_SECRET", "service": "lowcoder-api", "description": "Signs personal API keys - changing it invalidates every key", "secret": true, "strategy": "generate", "generate": "random_base64_32" }, { "key": "LOWCODER_WORKSPACE_MODE", "service": "lowcoder-api", "description": "SAAS: every sign-up gets its own workspace. ENTERPRISE: everyone joins the first workspace", "secret": false, "strategy": "default", "default": "SAAS" }, { "key": "LOWCODER_ADMIN_SMTP_PORT", "service": "lowcoder-api", "description": "SMTP port", "secret": false, "strategy": "default", "default": "587" }, { "key": "LOWCODER_MAX_REQUEST_SIZE", "service": "lowcoder-api", "description": "Max upload / query request and response size", "secret": false, "strategy": "default", "default": "20m" }, { "key": "LOWCODER_NODE_SERVICE_URL", "service": "lowcoder-api", "description": "Node service (JS execution and data source plugins) on the private network", "secret": false, "strategy": "railway_provided", "railway_source": "railway_private_domain" }, { "key": "LOWCODER_DB_ENCRYPTION_SALT", "service": "lowcoder-api", "description": "Salt for the database encryption above - never change it after first boot", "secret": false, "strategy": "generate", "generate": "random_base64_32" }, { "key": "LOWCODER_EMAIL_AUTH_ENABLED", "service": "lowcoder-api", "description": "Email + password sign-in. Keep true: the web UI hides the login and sign-up forms unless this is exactly true, and the super-admin signs in with it", "secret": false, "strategy": "default", "default": "true" }, { "key": "LOWCODER_SUPERUSER_PASSWORD", "service": "lowcoder-api", "description": "Super-admin password (generated). It is re-applied on every boot, so change it here, not in the UI", "secret": true, "strategy": "generate", "generate": "strong_password" }, { "key": "LOWCODER_SUPERUSER_USERNAME", "service": "lowcoder-api", "description": "Your email - the super-admin login, created on first boot", "secret": false, "strategy": "ask_user" }, { "key": "LOWCODER_NODE_SERVICE_SECRET", "service": "lowcoder-api", "description": "Shared with the Node service - encrypts data source configs passed to it", "secret": true, "strategy": "railway_provided", "railway_source": "reference_variable" }, { "key": "LOWCODER_EMAIL_SIGNUP_ENABLED", "service": "lowcoder-api", "description": "Allow new accounts to sign up with email (needed for invite links). In the default SAAS mode every sign-up gets its own isolated workspace; set false to close sign-ups", "secret": false, "strategy": "default", "default": "true" }, { "key": "LOWCODER_DB_ENCRYPTION_PASSWORD", "service": "lowcoder-api", "description": "Encrypts data source credentials stored in MongoDB. BACK IT UP - changing it makes saved credentials unreadable", "secret": true, "strategy": "generate", "generate": "strong_password" }, { "key": "RAILWAY_HEALTHCHECK_TIMEOUT_SEC", "service": "lowcoder-api", "description": "First boot runs the MongoDB migrations before the health check can pass", "secret": false, "strategy": "default", "default": "600" }, { "key": "LOWCODER_NODE_SERVICE_SECRET_SALT", "service": "lowcoder-api", "description": "Shared with the Node service", "secret": true, "strategy": "railway_provided", "railway_source": "reference_variable" }, { "key": "MONGO_INITDB_ROOT_PASSWORD", "service": "MongoDB", "description": "Auto-generated MongoDB root password", "secret": true, "strategy": "generate", "generate": "strong_password" }, { "key": "MONGO_INITDB_ROOT_USERNAME", "service": "MongoDB", "description": "MongoDB root user", "secret": false, "strategy": "default", "default": "lowcoder" }, { "key": "RAILWAY_DEPLOYMENT_DRAINING_SECONDS", "service": "MongoDB", "description": "Time for MongoDB to shut down cleanly on redeploy", "secret": false, "strategy": "default", "default": "60" }, { "key": "PORT", "service": "Lowcoder", "description": "Port the Lowcoder web server (nginx) listens on - leave as is", "secret": false, "strategy": "default", "default": "3000" }, { "key": "LOWCODER_API_SERVICE_URL", "service": "Lowcoder", "description": "API service on the private network (nginx proxies /api here)", "secret": false, "strategy": "railway_provided", "railway_source": "railway_private_domain" }, { "key": "LOWCODER_MAX_REQUEST_SIZE", "service": "Lowcoder", "description": "Max upload / request size - keep in sync with the API service", "secret": false, "strategy": "default", "default": "20m" }, { "key": "LOWCODER_NODE_SERVICE_URL", "service": "Lowcoder", "description": "Node service on the private network", "secret": false, "strategy": "railway_provided", "railway_source": "railway_private_domain" }, { "key": "LOWCODER_MAX_QUERY_TIMEOUT", "service": "Lowcoder", "description": "Proxy timeout in seconds for long-running queries", "secret": false, "strategy": "default", "default": "120" } ], "deploy": { "mcp": { "server": "railway", "tool": "deploy_template", "args": { "template_code": "lowcoder" } }, "cli": "railway deploy --template lowcoder", "api": { "method": "POST", "path": "/graphql/v2", "body": { "query": "mutation templateDeploy($input: TemplateDeployV2Input!) { templateDeployV2(input: $input) { projectId workflowId } }", "variables": { "input": { "templateId": "3d34edaf-f313-48fa-9b28-be4abb049a27", "serializedConfig": { "services": { "0e5119ca-f9d7-434a-8b07-85719b7b6a56": { "icon": "https://devicons.railway.app/i/redis.svg", "name": "Redis", "build": {}, "deploy": { "startCommand": "/bin/sh -c \"chown -R redis:redis /data && exec docker-entrypoint.sh redis-server --requirepass $REDIS_PASSWORD --appendonly yes\"", "healthcheckPath": null, "restartPolicyType": "ON_FAILURE", "restartPolicyMaxRetries": 10 }, "source": { "image": "redis:8.10.2-alpine" }, "variables": { "REDIS_PASSWORD": { "isOptional": false, "description": "Auto-generated Redis password", "defaultValue": "{{REDIS_PASSWORD}}" } }, "networking": { "serviceDomains": {} }, "volumeMounts": { "482b05f3-75b5-4ccf-969b-5456cd7296c0": { "mountPath": "/data" } } }, "5c578a3f-723d-4b17-9c73-ae1e4c18e979": { "icon": "https://raw.githubusercontent.com/nomideusz/lowcoder-railway/main/icon.svg", "name": "lowcoder-node", "build": {}, "deploy": { "startCommand": "/bin/sh -c \"cd /lowcoder/node-service/app && exec gosu lowcoder node ./build/server.js\"", "healthcheckPath": "/", "restartPolicyType": "ON_FAILURE", "restartPolicyMaxRetries": 10 }, "source": { "image": "lowcoderorg/lowcoder-ce-node-service:2.7.6" }, "variables": { "PORT": { "isOptional": false, "description": "Port the Node service listens on - leave as is", "defaultValue": "6060" }, "API_HOST": { "isOptional": false, "description": "API service on the private network", "defaultValue": "http://${{lowcoder-api.RAILWAY_PRIVATE_DOMAIN}}:8080" }, "NODE_OPTIONS": { "isOptional": false, "description": "Node heap cap - the bundled data source plugins need about 300 MB at boot", "defaultValue": "--max-old-space-size=384" }, "LOWCODER_NODE_SERVICE_SECRET": { "isOptional": false, "description": "Encrypts data source configs exchanged with the API service (generated)", "defaultValue": "{{LOWCODER_NODE_SERVICE_SECRET}}" }, "LOWCODER_NODE_SERVICE_SECRET_SALT": { "isOptional": false, "description": "Salt for the secret above (generated)", "defaultValue": "{{LOWCODER_NODE_SERVICE_SECRET_SALT}}" } }, "networking": { "serviceDomains": {} }, "volumeMounts": {} }, "84fc5da9-4ff4-4398-b432-42e2d1da13da": { "icon": "https://raw.githubusercontent.com/nomideusz/lowcoder-railway/main/icon.svg", "name": "lowcoder-api", "build": {}, "deploy": { "startCommand": null, "healthcheckPath": "/api/status/health", "restartPolicyType": "ON_FAILURE", "restartPolicyMaxRetries": 10 }, "source": { "image": "lowcoderorg/lowcoder-ce-api-service:2.7.6" }, "variables": { "PORT": { "isOptional": false, "description": "Port the API service listens on - leave as is", "defaultValue": "8080" }, "JAVA_OPTS": { "isOptional": false, "description": "JVM memory caps so the API service fits in 512 MB (Trial). On Hobby you can raise -Xmx (e.g. 768m) for large query results and drop TieredStopAtLevel=1 for full JIT", "defaultValue": "-Xms64m -Xmx256m -XX:MaxMetaspaceSize=160m -XX:ReservedCodeCacheSize=48m -XX:TieredStopAtLevel=1 -XX:MaxDirectMemorySize=64m -Xss512k -XX:+UseSerialGC" }, "MALLOC_ARENA_MAX": { "isOptional": false, "description": "Limits glibc malloc arenas - keeps the JVM's native memory small", "defaultValue": "2" }, "LOWCODER_REDIS_URL": { "isOptional": false, "description": "Redis on the private network", "defaultValue": "redis://default:${{Redis.REDIS_PASSWORD}}@${{Redis.RAILWAY_PRIVATE_DOMAIN}}:6379" }, "LOWCODER_PUBLIC_URL": { "isOptional": false, "description": "Public URL of Lowcoder (invite links, emails, OAuth callbacks) - set it to your custom domain after adding one", "defaultValue": "https://${{Lowcoder.RAILWAY_PUBLIC_DOMAIN}}" }, "LOWCODER_MONGODB_URL": { "isOptional": false, "description": "MongoDB on the private network", "defaultValue": "mongodb://${{MongoDB.MONGO_INITDB_ROOT_USERNAME}}:${{MongoDB.MONGO_INITDB_ROOT_PASSWORD}}@${{MongoDB.RAILWAY_PRIVATE_DOMAIN}}:27017/lowcoder?authSource=admin" }, "LOWCODER_API_KEY_SECRET": { "isOptional": false, "description": "Signs personal API keys - changing it invalidates every key", "defaultValue": "{{LOWCODER_API_KEY_SECRET}}" }, "LOWCODER_WORKSPACE_MODE": { "isOptional": false, "description": "SAAS: every sign-up gets its own workspace. ENTERPRISE: everyone joins the first workspace", "defaultValue": "SAAS" }, "LOWCODER_ADMIN_SMTP_HOST": { "isOptional": true, "description": "Optional SMTP server for invitation and password-reset emails (Railway allows outbound SMTP on Pro only)", "defaultValue": "" }, "LOWCODER_ADMIN_SMTP_PORT": { "isOptional": true, "description": "SMTP port", "defaultValue": "587" }, "LOWCODER_MAX_REQUEST_SIZE": { "isOptional": false, "description": "Max upload / query request and response size", "defaultValue": "20m" }, "LOWCODER_NODE_SERVICE_URL": { "isOptional": false, "description": "Node service (JS execution and data source plugins) on the private network", "defaultValue": "http://${{lowcoder-node.RAILWAY_PRIVATE_DOMAIN}}:6060" }, "LOWCODER_DB_ENCRYPTION_SALT": { "isOptional": false, "description": "Salt for the database encryption above - never change it after first boot", "defaultValue": "{{LOWCODER_DB_ENCRYPTION_SALT}}" }, "LOWCODER_EMAIL_AUTH_ENABLED": { "isOptional": false, "description": "Email + password sign-in. Keep true: the web UI hides the login and sign-up forms unless this is exactly true, and the super-admin signs in with it", "defaultValue": "true" }, "LOWCODER_SUPERUSER_PASSWORD": { "isOptional": false, "description": "Super-admin password (generated). It is re-applied on every boot, so change it here, not in the UI", "defaultValue": "{{LOWCODER_SUPERUSER_PASSWORD}}" }, "LOWCODER_SUPERUSER_USERNAME": { "isOptional": false, "description": "Your email - the super-admin login, created on first boot", "defaultValue": "{{LOWCODER_SUPERUSER_USERNAME}}" }, "LOWCODER_ADMIN_SMTP_PASSWORD": { "isOptional": true, "description": "SMTP password", "defaultValue": "" }, "LOWCODER_ADMIN_SMTP_USERNAME": { "isOptional": true, "description": "SMTP username", "defaultValue": "" }, "LOWCODER_NODE_SERVICE_SECRET": { "isOptional": false, "description": "Shared with the Node service - encrypts data source configs passed to it", "defaultValue": "${{lowcoder-node.LOWCODER_NODE_SERVICE_SECRET}}" }, "LOWCODER_EMAIL_SIGNUP_ENABLED": { "isOptional": false, "description": "Allow new accounts to sign up with email (needed for invite links). In the default SAAS mode every sign-up gets its own isolated workspace; set false to close sign-ups", "defaultValue": "true" }, "LOWCODER_DB_ENCRYPTION_PASSWORD": { "isOptional": false, "description": "Encrypts data source credentials stored in MongoDB. BACK IT UP - changing it makes saved credentials unreadable", "defaultValue": "{{LOWCODER_DB_ENCRYPTION_PASSWORD}}" }, "RAILWAY_HEALTHCHECK_TIMEOUT_SEC": { "isOptional": false, "description": "First boot runs the MongoDB migrations before the health check can pass", "defaultValue": "600" }, "LOWCODER_NODE_SERVICE_SECRET_SALT": { "isOptional": false, "description": "Shared with the Node service", "defaultValue": "${{lowcoder-node.LOWCODER_NODE_SERVICE_SECRET_SALT}}" }, "LOWCODER_EMAIL_NOTIFICATIONS_SENDER": { "isOptional": true, "description": "Sender address for Lowcoder emails", "defaultValue": "" } }, "networking": { "serviceDomains": {} }, "volumeMounts": {} }, "910c7225-ae68-46a4-a670-276bf7a739dc": { "icon": "https://devicons.railway.app/i/mongodb.svg", "name": "MongoDB", "build": {}, "deploy": { "startCommand": "docker-entrypoint.sh mongod --bind_ip_all --ipv6 --wiredTigerCacheSizeGB 0.25", "healthcheckPath": null, "restartPolicyType": "ON_FAILURE", "restartPolicyMaxRetries": 10 }, "source": { "image": "mongo:7.0.43" }, "variables": { "MONGO_INITDB_ROOT_PASSWORD": { "isOptional": false, "description": "Auto-generated MongoDB root password", "defaultValue": "{{MONGO_INITDB_ROOT_PASSWORD}}" }, "MONGO_INITDB_ROOT_USERNAME": { "isOptional": false, "description": "MongoDB root user", "defaultValue": "lowcoder" }, "RAILWAY_DEPLOYMENT_DRAINING_SECONDS": { "isOptional": false, "description": "Time for MongoDB to shut down cleanly on redeploy", "defaultValue": "60" } }, "networking": { "serviceDomains": {} }, "volumeMounts": { "ff3af33a-9898-4b1a-b0a6-e5ed4b630180": { "mountPath": "/data/db" } } }, "c51cefc7-bf1a-41b6-bb84-dc535ea47121": { "icon": "https://raw.githubusercontent.com/nomideusz/lowcoder-railway/main/icon.svg", "name": "Lowcoder", "build": {}, "deploy": { "startCommand": "/bin/sh -c \"grep -q '^resolver' /etc/nginx/server.conf || { R=$(awk '/^nameserver/{print $2; exit}' /etc/resolv.conf); case $R in *:*) R=[$R];; esac; sed -i -e '1i resolver '$R' valid=10s;' -e 's#proxy_pass __LOWCODER_API_SERVICE_URL__;#set $lc_up __LOWCODER_API_SERVICE_URL__; proxy_pass $lc_up;#' -e 's#proxy_pass __LOWCODER_NODE_SERVICE_URL__;#set $lc_up __LOWCODER_NODE_SERVICE_URL__; proxy_pass $lc_up;#' /etc/nginx/server.conf; }; exec /docker-entrypoint.sh nginx -g 'daemon off;'\"", "healthcheckPath": "/", "restartPolicyType": "ON_FAILURE", "restartPolicyMaxRetries": 10 }, "source": { "image": "lowcoderorg/lowcoder-ce-frontend:2.7.6" }, "variables": { "PORT": { "isOptional": false, "description": "Port the Lowcoder web server (nginx) listens on - leave as is", "defaultValue": "3000" }, "LOWCODER_API_SERVICE_URL": { "isOptional": false, "description": "API service on the private network (nginx proxies /api here)", "defaultValue": "http://${{lowcoder-api.RAILWAY_PRIVATE_DOMAIN}}:8080" }, "LOWCODER_MAX_REQUEST_SIZE": { "isOptional": false, "description": "Max upload / request size - keep in sync with the API service", "defaultValue": "20m" }, "LOWCODER_NODE_SERVICE_URL": { "isOptional": false, "description": "Node service on the private network", "defaultValue": "http://${{lowcoder-node.RAILWAY_PRIVATE_DOMAIN}}:6060" }, "LOWCODER_MAX_QUERY_TIMEOUT": { "isOptional": false, "description": "Proxy timeout in seconds for long-running queries", "defaultValue": "120" } }, "networking": { "serviceDomains": { "": {} } }, "volumeMounts": {} } } } } } } } }, "post_deploy": { "healthcheck": { "service": "Lowcoder", "method": "GET", "path": "/", "expect_status": 200 } }, "resources": { "expected_services": 5, "needs_volume": true }, "generated_at": "2026-10-14T10:14:43.564Z", "generator_version": "0.1.0" }