GET - fetch pipeline log POST - store pipeline log
Backend: S3 (tested with Minio, AWS should work)
POST
curl http://192.168.0.26:31112/function/pipeline-log -d '{"repoPath": "alexellis/super-pancake", "commitSHA": "a3ef55c", "function": "slack-fn1", "source": "builder","data": "Line1\nLine2\n"}'
GET
curl "http://192.168.0.26:31112/function/pipeline-log?repoPath=alexellis/super-pancake&commitSHA=a3ef55c&function=slack-fn1" -i
Add verification of sender via HMAC secret