Configure environment and secrets for Echo

Summary

Configuration and secrets for a Echo app on Ample. Verified on Echo: an --env value delivered encrypted and reported as present without being echoed (secret=set). Build and start: CGO_ENABLED=0 go build -o app ./... then ./app on the ubuntu-24.04 template (go.sum committed for a reproducible build).

Resource 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.

Prerequisites

• A Echo project (CGO_ENABLED=0 go build -o app ./... then ./app on the ubuntu-24.04 template (go.sum committed for a reproducible build))
• An Ample account token with servers:write

Workflow Steps

1. Build and start: CGO_ENABLED=0 go build -o app ./... then ./app on the ubuntu-24.04 template (go.sum committed for a reproducible build); 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 --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

Tested Configuration

• Template: ubuntu-24.04
• Runtime: go
• Size: s-1vcpu-1gb
• Build: CGO_ENABLED=0 go build -o app ./...
• Start: ./app

Examples

Echo pattern fixture

Description: Verified configuration and secrets on Echo. Source Ref: tests/deploy-canaries/echo-patterns

Success Checks

• App responds on its public URL: Check by using / and expect to see ample canary echo patterns.
• Configuration-secrets check from the example: Check by using /p/configuration-secrets and expect to see see the pattern fixture checks.

Limitations

• Verified on the ubuntu-24.04 template at s-1vcpu-1gb; other sizes and Echo 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 Note: Always-on monthly price of the tested sizes; apps auto-pause when idle. Buckets are allocation-priced per quota and not included.

Cost Breakdown

• App Server:
  • Size: s-1vcpu-1gb
  • Quantity: 1.0
  • Monthly Amount: 5.0

Evidence Summary

• Kind: canary_run
  Summary: Echo pattern fixture deployed on Ample (CGO_ENABLED=0 go build -o app ./... then ./app on the ubuntu-24.04 template (go.sum committed for a reproducible build)); for this guide: an --env value delivered encrypted and reported as present without being echoed (secret=set). Observed At: 2026-09-21T02:34:39Z
  Expires At: 2027-03-20T02:34:39Z
  Scope: checks=[/p/configuration-secrets], template=ubuntu-24.04

Next Actions

• Action: Browse the catalog index
  Method: GET
  Relative Path: /v1/catalog
• Action: Search published recipes by intent, stack and constraints
  Method: POST
  Relative Path: /v1/catalog/search
• Action: Prepare a side-effect-free deployment plan for an authorized project
  Method: POST
  Relative Path: /v1/catalog/plan
• Action: Read the existing agent authentication setup
  Method: GET
  Relative Path: /mcp/setup
• Action: Browse Echo
  Method: GET
  Relative Path: /v1/catalog/nodes/stack%3Aframework-echo
• Action: Browse Configure deployment
  Method: GET
  Relative Path: /v1/catalog/nodes/intent%3Aconfigure-deployment
• Action: Browse Public web service
  Method: GET
  Relative Path: /v1/catalog/nodes/pattern%3Apublic-web-service