{"catalogRevision":"cat_f13ab9a494120b5e","recipeId":"page:migrate:google-cloud-sql-for-postgresql:json-document-metadata","recipeRevision":"r1","canonicalPath":"/migrate/google-cloud-sql-for-postgresql/json-document-metadata","label":"Migrate Google Cloud SQL for PostgreSQL: JSON document metadata","family":"Migration guide","summary":"Move PostgreSQL data from Google Cloud SQL 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` through the Cloud SQL Auth Proxy or an authorized network. Not migrated automatically: Cloud SQL Auth Proxy/IAM authentication, high availability and PITR have no equivalent on the managed database. Cutover: Freeze writes with the user's go-ahead, take the final dump, restore, validate, redeploy with the managed DATABASE_URL, keep Cloud SQL until confirmed. Rollback: keep the source untouched until you confirm; nothing at the source is changed or deleted by this guide.","representativeQueries":["Migrate Google Cloud SQL 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:google-cloud-sql-for-postgresql","page:migrate:google-cloud-sql-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:google-cloud-sql-for-postgresql","label":"Google Cloud SQL for PostgreSQL","canonicalPath":"/discover/migration/google-cloud-sql-for-postgresql","kind":"atom"},{"id":"page:migrate:google-cloud-sql-for-postgresql:json-document-metadata","label":"Migrate Google Cloud SQL for PostgreSQL: JSON document metadata","canonicalPath":"/migrate/google-cloud-sql-for-postgresql/json-document-metadata","kind":"recipe"}],"parentIds":["migration:google-cloud-sql-for-postgresql","pattern:json-document-metadata","intent:migrate-postgres"],"parents":[{"id":"migration:google-cloud-sql-for-postgresql","label":"Google Cloud SQL for PostgreSQL","canonicalPath":"/discover/migration/google-cloud-sql-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":"Google Cloud SQL for PostgreSQL","releaseStatus":"published","supportStatus":"verified","executionStatus":"unbound","docsOnly":true,"prerequisites":["Authorized access to the Google Cloud SQL 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 Google Cloud SQL for PostgreSQL provides beyond the component you are moving. Out of scope here: Cloud SQL Auth Proxy/IAM authentication, high availability and PITR have no equivalent on the managed database."},{"title":"Source step 1","body":"Take a logical backup with `pg_dump -Fc` through the Cloud SQL Auth Proxy or an authorized network"},{"title":"Source step 2","body":"Check the engine major version, extensions and flags 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 with the user's go-ahead, take the final dump, restore, validate, redeploy with the managed DATABASE_URL, keep Cloud SQL 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 Google Cloud SQL 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: Cloud SQL Auth Proxy/IAM authentication, high availability and PITR 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 7cf090725a6f16dd91af7d28356fe72c1b404d6e","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 Google Cloud SQL 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/google-cloud-sql-for-postgresql/json-document-metadata","markdown":"https://ample.computer/migrate/google-cloud-sql-for-postgresql/json-document-metadata.md","json":"https://api.ample.computer/v1/catalog/recipes/page%3Amigrate%3Agoogle-cloud-sql-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 Google Cloud SQL for PostgreSQL: JSON document metadata"}},"requiresAuthentication":false,"requiresApproval":false},{"actionId":"plan:page:migrate:google-cloud-sql-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:google-cloud-sql-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:google-cloud-sql-for-postgresql","label":"Browse Google Cloud SQL for PostgreSQL","operationId":"browse_node","method":"GET","relativePath":"/v1/catalog/nodes/migration%3Agoogle-cloud-sql-for-postgresql","origin":"api","parameters":{"nodeId":"migration:google-cloud-sql-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}]}