Provide an option to serialize DAG build-step execution

[briandealwis]

Users hitting registry authentication/authorization issues find Jib's output text imply that the operations are completed.

[INFO] Retrieving registry credentials for registry.hub.docker.com...
[INFO] Getting base image gcr.io/distroless/java...
[INFO] Building dependencies layer…

For a good time: mvn jib:build -Dimage=foo/bar/baz and try to make sense of the result!

[TadCordle]

@briandealwis Is there more to do on this issue or is it fixed by #682?

[briandealwis]

I see that image push seems to push up the layers/blobs in parallel.

Jul 24, 2018 2:11:40 PM com.google.api.client.http.HttpRequest execute
CONFIG: -------------- REQUEST  --------------
HEAD https://quay.io/v2/briandealwis/jibtest/blobs/sha256:8f125ded1b483229a567e48eece98cc8867c2bee55fb73e9cd65ceecc448b7c7
Accept: 
Accept-Encoding: gzip
Authorization: <Not Logged>
User-Agent: jib 0.9.8-SNAPSHOT jib-maven-plugin Google-HTTP-Java-Client/1.23.0 (gzip)

Jul 24, 2018 2:11:40 PM com.google.api.client.http.HttpRequest execute
CONFIG: -------------- REQUEST  --------------
HEAD https://quay.io/v2/briandealwis/jibtest/blobs/sha256:a988b67f65865e95c004400d61fee34b39651fb3437fedf2e44c9d5f01ff1290
Accept: 
Accept-Encoding: gzip
Authorization: <Not Logged>
User-Agent: jib 0.9.8-SNAPSHOT jib-maven-plugin Google-HTTP-Java-Client/1.23.0 (gzip)

Jul 24, 2018 2:11:40 PM com.google.api.client.http.HttpRequest execute
CONFIG: -------------- REQUEST  --------------
HEAD https://quay.io/v2/briandealwis/jibtest/blobs/sha256:1ad24c91d38c2f3a908e16e428f6fb3d96c4743f0f65559e163b115ddaa521c9
Accept: 
Accept-Encoding: gzip
Authorization: <Not Logged>
User-Agent: jib 0.9.8-SNAPSHOT jib-maven-plugin Google-HTTP-Java-Client/1.23.0 (gzip)

Jul 24, 2018 2:11:40 PM com.google.api.client.http.HttpRequest execute
CONFIG: -------------- REQUEST  --------------
HEAD https://quay.io/v2/briandealwis/jibtest/blobs/sha256:2052c536956a5e02c60080e4e88cbbecddd2f65fb0ccfe015456b75cc77e6ea5
Accept: 
Accept-Encoding: gzip
Authorization: <Not Logged>
User-Agent: jib 0.9.8-SNAPSHOT jib-maven-plugin Google-HTTP-Java-Client/1.23.0 (gzip)

Jul 24, 2018 2:11:40 PM com.google.api.client.http.HttpRequest execute
CONFIG: -------------- REQUEST  --------------
HEAD https://quay.io/v2/briandealwis/jibtest/blobs/sha256:ba7c544469e514f1a9a4dec59ab640540d50992b288adbb34a1a63c45bf19a24
Accept: 
Accept-Encoding: gzip
Authorization: <Not Logged>
User-Agent: jib 0.9.8-SNAPSHOT jib-maven-plugin Google-HTTP-Java-Client/1.23.0 (gzip)

[briandealwis]

I'm just trying it again and everything is serialized. Oh, I just discovered why: I used jibSerialize not jibSerialized (missing the d).

/me sighs