{"catalogRevision":"cat_f13ab9a494120b5e","recipeId":"page:migrate:amazon-rds-for-postgresql:json-document-metadata","recipeRevision":"r1","canonicalPath":"/migrate/amazon-rds-for-postgresql/json-document-metadata","label":"Migrate Amazon RDS for PostgreSQL: JSON document metadata","family":"Migration guide","summary":"Move PostgreSQL data from Amazon RDS for PostgreSQL to Ample, one component at a time. Destination verified on Ample: a jsonb column with a GIN index queried by path and containment, with an aggregate over matching documents (json=ok). Source procedure: Take a logical backup with `pg_dump -Fc` from a network location that can reach the instance. Not migrated automatically: Multi-AZ failover, read replicas, IAM authentication, PITR and Performance Insights have no equivalent on the managed database. Cutover: Freeze writes at the source with the user's go-ahead, take the final dump, restore, validate, redeploy with the managed DATABASE_URL, keep RDS until confirmed. Rollback: keep the source untouched until you confirm; nothing at the source is changed or deleted by this guide.","representativeQueries":["Migrate Amazon RDS for PostgreSQL: JSON document metadata","Where can I host JSON document metadata?","I need a component-scoped export/import or reconfiguration procedure for JSON document metadata, with compatibility checks, verification and rollback."],"breadcrumbIds":["discovery","migration","migration:postgres-sources","migration:amazon-rds-for-postgresql","page:migrate:amazon-rds-for-postgresql:json-document-metadata"],"breadcrumbs":[{"id":"discovery","label":"Agent hosting discovery","canonicalPath":"/discover/discovery","kind":"root"},{"id":"migration","label":"Migration sources by component","canonicalPath":"/discover/migration","kind":"facet"},{"id":"migration:postgres-sources","label":"Postgres sources","canonicalPath":"/discover/migration/postgres-sources","kind":"group"},{"id":"migration:amazon-rds-for-postgresql","label":"Amazon RDS for PostgreSQL","canonicalPath":"/discover/migration/amazon-rds-for-postgresql","kind":"atom"},{"id":"page:migrate:amazon-rds-for-postgresql:json-document-metadata","label":"Migrate Amazon RDS for PostgreSQL: JSON document metadata","canonicalPath":"/migrate/amazon-rds-for-postgresql/json-document-metadata","kind":"recipe"}],"parentIds":["migration:amazon-rds-for-postgresql","pattern:json-document-metadata","intent:migrate-postgres"],"parents":[{"id":"migration:amazon-rds-for-postgresql","label":"Amazon RDS for PostgreSQL","canonicalPath":"/discover/migration/amazon-rds-for-postgresql","kind":"atom"},{"id":"pattern:json-document-metadata","label":"JSON document metadata","canonicalPath":"/discover/pattern/json-document-metadata","kind":"atom"},{"id":"intent:migrate-postgres","label":"Migrate Postgres","canonicalPath":"/discover/intent/migrate-postgres","kind":"atom"}],"resourceRequirements":["primitive:postgres"],"infrastructureRequirements":[{"primitiveId":"primitive:postgres","label":"Postgres","canonicalPath":"/discover/primitive/postgres","status":"verified","summary":"Managed PostgreSQL 16 runs in its own microVM and is auto-provisioned when an app needs a database and no DATABASE_URL is supplied."}],"workload":"JSON document metadata","migrationSource":"Amazon RDS for PostgreSQL","releaseStatus":"published","supportStatus":"verified","executionStatus":"unbound","docsOnly":true,"prerequisites":["Authorized access to the Amazon RDS for PostgreSQL source and its export tooling","An inventory of every component in scope and out of scope","A validated backup or copy before any cutover","An Ample account token with servers:write, databases:read"],"testedConfiguration":{"template":"node-22","runtime":"node","size":"s-1vcpu-1gb","install":"npm install","build":"npm run build --if-present","start":"npm run start"},"inputSchema":null,"outputSchema":null,"workflowSteps":[{"title":"Inventory the source","body":"List what Amazon RDS for PostgreSQL provides beyond the component you are moving. Out of scope here: Multi-AZ failover, read replicas, IAM authentication, PITR and Performance Insights have no equivalent on the managed database."},{"title":"Source step 1","body":"Take a logical backup with `pg_dump -Fc` from a network location that can reach the instance"},{"title":"Source step 2","body":"Check the engine major version, extensions and parameter-group settings the app depends on"},{"title":"Source step 3","body":"Restore into a scratch managed database first and compare row counts"},{"title":"Provision and restore","body":"Deploy the app once so a managed PostgreSQL 16 database exists (or create one with `ample database create --engine postgres`), then restore the dump with pg_restore using its connection string; keep migrations idempotent.","command":"ample database create --name <db-name> --engine postgres"},{"title":"Validate before cutover","body":"Run the app's own checks and, for data, compare counts and checksums; the example checks are the pattern self-tests (/p/json-document-metadata)."},{"title":"Cut over","body":"Freeze writes at the source with the user's go-ahead, take the final dump, restore, validate, redeploy with the managed DATABASE_URL, keep RDS until confirmed."},{"title":"Rollback","body":"Point DNS or configuration back to the source. The source was never modified; deletion is a separate, user-executed step after validation."}],"examples":[{"title":"Express pattern fixture (destination)","description":"Verified destination basis: JSON document metadata.","sourceRef":"tests/deploy-canaries/express-patterns"}],"successChecks":[{"description":"destination app responds on its public URL","kind":"http_get","path":"/","expect":"ample canary express patterns"},{"description":"json-document-metadata check from the destination example","kind":"http_get","path":"/p/json-document-metadata","expect":"see the pattern fixture checks"},{"description":"data or object counts and checksums match the source","kind":"manual","expect":"operator comparison before cutover"}],"limitations":["Documentation only: nothing is executed automatically and no execution binding is offered.","The source-side procedure is documented from Amazon RDS for PostgreSQL's standard tooling and was not executed in this catalog's evidence; the destination side was verified with the pattern fixture.","No full source-product parity is claimed: Multi-AZ failover, read replicas, IAM authentication, PITR and Performance Insights have no equivalent on the managed database.","Verified on the node-22 template at s-1vcpu-1gb; region, compliance and request-duration limits are unknown.","Managed PostgreSQL 16 only; extensions, connection limits and backup or restore procedures on the managed side are not verified beyond the pattern checks."],"costEstimate":{"currency":"USD","monthlyAmount":10.0,"authoritative":true,"basis":"size prices from pricing.toml (loaded by the API) at build revision 752d2a7584688a5d233b2c53d38307d289b04d3e","components":[{"name":"app server","size":"s-1vcpu-1gb","quantity":1.0,"monthlyAmount":5.0},{"name":"managed PostgreSQL database","size":"s-1vcpu-1gb","quantity":1.0,"monthlyAmount":5.0}],"note":"Destination always-on monthly price of the tested sizes; apps auto-pause when idle. Source costs are unknown to Ample."},"evidenceSummary":[{"kind":"canary_run","summary":"Destination side verified: the Express pattern fixture deployed on Ample (npm install, npm run build --if-present, npm run start on the node-22 template) and its checks passed (a jsonb column with a GIN index queried by path and containment, with an aggregate over matching documents (json=ok)). The source-side export from Amazon RDS for PostgreSQL is documented from the vendor's standard tooling and was not executed by this catalog's evidence.","observedAt":"2026-09-21T02:34:39Z","implementationRevision":"1d28ae0 (CLI 0.1.21)","expiresAt":"2027-03-20T02:34:39Z","scope":{"checks":["/p/json-document-metadata"],"destinationOnly":true,"template":"node-22"}}],"lastVerifiedAt":"2026-09-21T02:34:39Z","mcpBinding":null,"unknowns":["region availability is unknown until a verified region fact is recorded","compliance attestations are unknown; none are claimed"],"formats":{"html":"https://ample.computer/migrate/amazon-rds-for-postgresql/json-document-metadata","markdown":"https://ample.computer/migrate/amazon-rds-for-postgresql/json-document-metadata.md","json":"https://api.ample.computer/v1/catalog/recipes/page%3Amigrate%3Aamazon-rds-for-postgresql%3Ajson-document-metadata"},"nextActions":[{"actionId":"browse-catalog","label":"Browse the catalog index","operationId":"catalog_index","method":"GET","relativePath":"/v1/catalog","origin":"api","parameters":{},"requiresAuthentication":false,"requiresApproval":false},{"actionId":"search-recipes","label":"Search published recipes by intent, stack and constraints","operationId":"search_recipes","method":"POST","relativePath":"/v1/catalog/search","origin":"api","parameters":{"body":{"limit":5,"query":"Migrate Amazon RDS for PostgreSQL: JSON document metadata"}},"requiresAuthentication":false,"requiresApproval":false},{"actionId":"plan:page:migrate:amazon-rds-for-postgresql:json-document-metadata","label":"Prepare a side-effect-free deployment plan for an authorized project","operationId":"plan_deployment","method":"POST","relativePath":"/v1/catalog/plan","origin":"api","parameters":{"body":{"inputs":{},"projectId":"<workspace or server id you own>","recipeId":"page:migrate:amazon-rds-for-postgresql:json-document-metadata","recipeRevision":"r1"}},"requiresAuthentication":true,"requiresApproval":false},{"actionId":"auth-setup","label":"Read the existing agent authentication setup","operationId":"existing_auth_setup","method":"GET","relativePath":"/mcp/setup","origin":"api","parameters":{},"requiresAuthentication":false,"requiresApproval":false},{"actionId":"browse:migration:amazon-rds-for-postgresql","label":"Browse Amazon RDS for PostgreSQL","operationId":"browse_node","method":"GET","relativePath":"/v1/catalog/nodes/migration%3Aamazon-rds-for-postgresql","origin":"api","parameters":{"nodeId":"migration:amazon-rds-for-postgresql"},"requiresAuthentication":false,"requiresApproval":false},{"actionId":"browse:pattern:json-document-metadata","label":"Browse JSON document metadata","operationId":"browse_node","method":"GET","relativePath":"/v1/catalog/nodes/pattern%3Ajson-document-metadata","origin":"api","parameters":{"nodeId":"pattern:json-document-metadata"},"requiresAuthentication":false,"requiresApproval":false},{"actionId":"browse:intent:migrate-postgres","label":"Browse Migrate Postgres","operationId":"browse_node","method":"GET","relativePath":"/v1/catalog/nodes/intent%3Amigrate-postgres","origin":"api","parameters":{"nodeId":"intent:migrate-postgres"},"requiresAuthentication":false,"requiresApproval":false}]}