* implement manifest caching; refactor config with includes, and generate from ENVs in entrypoint.sh
- disabled by default; enable with -e ENABLE_MANIFEST_CACHE=true
- default times and regexes are a wild guess, make sure to tune for your use case.
- add manifest caching/anti-ratelimit usage note to README
- add -e ENABLE_MANIFEST_CACHE=true to examples, some wording changes
- add -e ENABLE_MANIFEST_CACHE=true to one the steps in test workflow.
- injects a mitmproxy between the caching layer and DockerHub's registry-1.docker.io
- it also disables VERIFY_SSL so the mitmproxy can be used;
- DEBUG_HUB's mitmweb is exposed on port 8082
- both DEBUG and DEBUG_HUB can be enabled independently
Cache immutable URLs and handle outages
1. Changes the blob cache to only cache by digest
2. Adds caching for manifests requested by digest
3. Cache but invalidate immediately (after 1s) mutable requests
4. Use invalidated cache (from 3) if the backend is down or 403 unauthorized
- now only /v2/.../blobs/... URIs are actually cached (together with their redirect catchers)
- /manifests/, /token, and /v2/ are not cached anymore, which should solve a lot of problems
- better messages for /v1 attempts
- fix usage of $connect_host:443 (which is hostname:port and causes errors to be logged) to $connect_addr (which returns an IP:port) in the proxy layer
Ricardo Pardini
naftulee
Brian Goff
ricardop
Ruud Kamphuis
Jonathan Giannuzzi
Sebastián Ramírez
Stan Yagolnitser