Configure environment and secrets for Starlette

Summary

Configuration and secrets for a Starlette app on Ample. Verified on Starlette: an --env value delivered encrypted and reported as present without being echoed (secret=set). Build and start: pip install into .ample/python from requirements.txt, then uvicorn from run.py reading PORT on the python-3.12 template.

Resource Requirements

• Compute

Infrastructure Requirements

• Compute
  Apps run in isolated x86_64 Firecracker microVMs that auto-pause when idle and wake on request; sizes are the priced VM sizes.

Workload

Configure environment and secrets

Prerequisites

1. A Starlette project (pip install into .ample/python from requirements.txt, then uvicorn from run.py reading PORT on the python-3.12 template)
2. An Ample account token with servers:write

Tested Configuration

• Template: python-3.12
• Runtime: python
• Size: s-1vcpu-1gb
• Install: python3 -m pip install --target .ample/python -r requirements.txt
• Start: PYTHONPATH=.ample/python:${PYTHONPATH:-} python3 run.py

Workflow Steps

1. Build and start
   pip install into .ample/python from requirements.txt, then uvicorn from run.py reading PORT on the python-3.12 template; the server must bind 0.0.0.0 on PORT.

2. Pass values on deploy
   Use --env KEY=value (repeatable) or --env-file; values are encrypted at rest and reused on redeploys. Declare names only in ample.toml.
   Command: ample deploy . --name --public --start "python3 run.py" --env MY_SECRET=...

3. Verify
   Fetch the live URL and /p/configuration-secrets on the example; on failure read the build and runtime logs.
   Command: ample logs --kind build

Examples

• Starlette pattern fixture
  Verified configuration and secrets on Starlette.

Success Checks

1. App responds on its public URL

   • Kind: http_get
   • Path: /
   • Expect: ample canary starlette patterns

2. Configuration-secrets check from the example

   • Kind: http_get
   • Path: /p/configuration-secrets
   • Expect: see the pattern fixture checks

Limitations

• Verified on the python-3.12 template at s-1vcpu-1gb; other sizes and Starlette major versions are not verified.
• Region, compliance attestations, and request-duration limits are unknown and not claimed.

Cost Estimate

• Currency: USD
• Monthly Amount: 5.0
• Basis: size prices from pricing.toml (loaded by the API) at build revision 1ac5595375130d45290090e82ed0f554ccd45405-dirty
• Components:
  • App server
    • Size: s-1vcpu-1gb
    • Quantity: 1.0
    • Monthly Amount: 5.0
• Note: Always-on monthly price of the tested sizes; apps auto-pause when idle. Buckets are allocation-priced per quota and not included.

Evidence Summary

• Canary Run: Starlette pattern fixture deployed on Ample (pip install into .ample/python from requirements.txt, then uvicorn from run.py reading PORT on the python-3.12 template); for this guide: an --env value delivered encrypted and reported as present without being echoed (secret=set).
  • Observed At: 2026-09-21T01:21:36Z
  • Implementation Revision: 50dbac567d2c5cc8e55e6c748a646be0025d9cfb-dirty (CLI 0.1.21)
  • Expires At: 2027-03-20T01:21:36Z

Last Verified At

2026-09-21T01:21:36Z

Unknowns

• Region availability is unknown until a verified region fact is recorded
• Compliance attestations are unknown; none are claimed.