page:recipes:partner portal:flask:activity history
Host Partner Portal with Flask: Application Activity History
Deploy a partner portal built with Flask on Ample using the transactional workflows pattern. Compute runs the app in an isolated microVM behind a public HTTPS URL, a managed PostgreSQL 16 database is auto-provisioned and injected as DATABASE_URL. Verified on Flask: an optimistic version check and an event row written in the same transaction, a stale update rejected, and a history query over the application-owned events (history=2 conflict=rejected). Not separately tested: your domain records, validation rules and concurrency policy; treat the partner portal-specific behavior as your application code.
Representative Queries
- Host partner portal with Flask: application activity history
- Where can I host Partner portal built with Flask?
- I need an application-owned event schema and tested history queries; not native platform audit logs.
Resource Requirements
- Compute
- Postgres
Infrastructure Requirements
- Compute
- Status: verified
- Summary: Apps run in isolated x86_64 Firecracker microVMs that auto-pause when idle and wake on request; sizes are the priced VM sizes.
- 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.
Framework
Flask
Workload
Partner portal
Execution Status
Ready
Prerequisites
- A Flask project that builds and starts with the documented commands (pip install into .ample/python from requirements.txt, then waitress from app.py reading PORT on the python-3.12 template)
- A PostgreSQL driver reading DATABASE_URL at runtime (auto-provisioned when omitted, or supplied with --env)
- An Ample account token with servers:write, databases:read
Workflow Steps
- Build and Start
- pip install into .ample/python from requirements.txt, then waitress from app.py reading PORT on the python-3.12 template. The server must bind 0.0.0.0 on PORT.
- Implement the Pattern on PostgreSQL
- The fixture's module implements transactional workflows: an optimistic version check and an event row written in the same transaction, a stale update rejected, and a history query over the application-owned events (history=2 conflict=rejected). Copy the approach into your schema; keep migrations idempotent and run them with --release-command.
- Deploy
- Run the synchronous deploy once and read the result (exit 0 live, 1 failed, 2 blocked). Re-running with no change is a no-op.
- Command: ample deploy . --name --public --start "python3 app.py"
- Verify
- Fetch the live URL and the pattern self-test route(s) (/p/transactional-workflows) from the example; then run your own checks. On failure read
ample logs --kind buildthen--kind runtime. - Command: ample logs --kind build
- Fetch the live URL and the pattern self-test route(s) (/p/transactional-workflows) from the example; then run your own checks. On failure read
Examples
- Flask Pattern Fixture
- Multi-pattern Flask app whose transactional workflows module was checked live; the module is under tests/deploy-canaries/_pattern-modules.
- Source Ref: tests/deploy-canaries/flask-patterns
Success Checks
- App Responds on its Public URL
- Kind: http_get
- Path: /
- Expect: ample canary flask patterns
- Transactional Workflows Self-Test
- Kind: http_get
- Path: /p/transactional-workflows
- Expect: tx=ok history=2 conflict=rejected
Limitations
- Verified on the python-3.12 template at s-1vcpu-1gb with the example fixture; other sizes, templates and Flask major versions are not verified.
- The partner portal itself (your domain records, validation rules and concurrency policy) is application code and was not separately tested; the pattern checks are what was verified.
- Region, compliance attestations and request-duration limits are unknown and not claimed.
- Apps auto-pause when idle and wake on the next request; always-on is an operator setting, not a plan feature.
- Managed PostgreSQL 16 only; extensions, connection limits and backup or restore procedures are not verified; apps and their databases are placed together.
Cost Estimate
- Currency: USD
- Monthly Amount: 10.0
- Note: Always-on monthly price of the tested sizes; apps and databases auto-pause when idle. Buckets are allocation-priced per quota and not included.
- Components:
- App server
- Size: s-1vcpu-1gb
- Quantity: 1.0
- Monthly Amount: 5.0
- Managed PostgreSQL database
- Size: s-1vcpu-1gb
- Quantity: 1.0
- Monthly Amount: 5.0
- App server
- Components:
Last Verified At
2026-09-21T01:14:18Z
Forward Actions
- Browse the catalog index
- Search published recipes by intent, stack and constraints
- Prepare a side-effect-free deployment plan for an authorized project
- Read the existing agent authentication setup
- Browse Partner portal
- Browse Flask
- Browse Transactional workflows
- Browse Deploy web app