youngoli commented on a change in pull request #14397:
URL: https://github.com/apache/beam/pull/14397#discussion_r606616857
##########
File path: sdks/go/pkg/beam/options/jobopts/options.go
##########
@@ -31,6 +31,18 @@ import (
"github.com/apache/beam/sdks/go/pkg/beam/log"
)
+func init() {
+ flag.Var(&SdkHarnessContainerImageOverrides,
+ "sdk_harness_container_image_override",
+ "Overrides for SDK harness container images. Could be for the "+
+ "local SDK or for a remote SDK that pipeline has to
support due "+
+ "to a cross-language transform. Each entry consist of
two values "+
+ "separated by a comma where first value gives a regex
to "+
+ "identify the container image to override and the
second value "+
+ "gives the replacement container image. Multiple
entries can be "+
+ "specified by using this flag multiple times.")
Review comment:
I haven't been able to find the documentation for the Java version of
this flag (despite being relatively sure it exists, based on [this
line](https://github.com/apache/beam/blob/76c49ac276fc804ccc058c901dc6cb9e063b2529/runners/google-cloud-dataflow-java/build.gradle#L345)),
but the Python version works identically, it requires you to use the flag once
per entry.
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