build(dev): replace LocalStack with moto for local S3 emulation - #859
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bencap wants to merge 1 commit into
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build(dev): replace LocalStack with moto for local S3 emulation#859bencap wants to merge 1 commit into
bencap wants to merge 1 commit into
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LocalStack archived its Community edition in March 2026 and moved S3 behind a paid token, so `docker compose up` fails with auth errors for anyone pulling the current image. Swap in moto (Apache-2.0), which is built for boto3 and runs the CSV upload/download flow with an unmodified client -- no path-style or expect-100-continue workarounds, unlike Adobe S3Mock (Java-SDK-first). moto has no auto-create, so a one-shot curl container PUTs the upload bucket once moto is up; this removes the awslocal-based init script. The app reaches moto at moto:5000 internally; the host port is 5001 to avoid the macOS AirPlay Receiver on 5000. Refs #768
Coverage Report for CI Build 33022288160Coverage decreased (-0.2%) to 88.841%Details
Uncovered ChangesNo uncovered changes found. Coverage Regressions25 previously-covered lines in 4 files lost coverage.
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Summary
Replaces LocalStack with moto for local S3 emulation. LocalStack archived its Community edition in March 2026 and moved S3 behind a paid token, so
docker compose upfails with auth errors for anyone pulling the current image.Why moto (not S3Mock or Floci)
PutObjectfails against it (tested 4.6.0 and 5.2.0) because its expect-100-continue handshake drops the connection. It would require path-style + Expect workarounds in our shareds3_client()— which also serves production.Changes
docker-compose-dev.yml:localstack→moto+ one-shotmoto-init(curlimages/curl) that PUTs the upload bucket once moto is up.bin/localstack-init.sh(and theawslocaldependency).settings/.env.template:S3_ENDPOINT_URL=http://moto:5000.5001:5000.