page:recipes:blog:flask:public site
Host blog with Flask: public-site delivery
Deploy a blog built with Flask on Ample using the public web service pattern. Compute runs the app in an isolated microVM behind a public HTTPS URL, and a published bucket serves public assets from the CDN host. Verified on Flask: a versioned, immutable-cached asset uploaded to a published bucket and served from the CDN URL alongside the app's own public HTTPS URL. Not separately tested: your site content and build; treat the blog-specific behavior as your application code.
Summary
- Framework: Flask
- Workload: Blog
- Release Status: published
- Support Status: verified
- Execution Status: ready
Representative Queries
- Host blog with Flask: public-site delivery
- Where can I host Blog built with Flask?
- I need an explicit origin-to-CDN delivery path and a tested public content 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.
- CDN:
- The CDN host serves objects from published buckets. It does not front app compute and is not a cache or key-value store.
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 bucket from
ample bucket createwith its credentials passed as encrypted S3_* environment variables - An Ample account token with servers:write, buckets:read
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 app.py
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.
- Wire object storage: Create the bucket(s), then pass endpoint, region, bucket and keys as --env values. Use path-style addressing. Keep private data in an unpublished bucket. Publish only the bucket that serves public assets and reference its CDN URL.
- 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" --env S3_ENDPOINT=... --env S3_REGION=... --env S3_BUCKET=... --env S3_ACCESS_KEY_ID=... --env S3_SECRET_ACCESS_KEY=... --env CDN_PUBLIC_URL=...
- Verify: Fetch the live URL and the pattern self-test route(s) (/p/versioned-static-assets) from the example; then run your own checks. On failure read
ample logs --kind buildthen--kind runtime.- Command: ample logs --kind build
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 blog itself (your site content and build) 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.
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 and databases auto-pause when idle. Buckets are allocation-priced per quota and not included.