Optionalize (default false) --insecure-registry.

[brendandburns]

@roberthbailey @stephenR

Fixes #7964.

[roberthbailey]

LGTM.

[k8s-bot]

GCE e2e build/test failed for commit 1985535174afa60889d47fe1b714b3a2bae6f9c7.

• Build Log
• Test Artifacts
• Internal Jenkins Results

[ixdy]

@k8s-bot test this please

[k8s-bot]

GCE e2e build/test failed for commit 1985535174afa60889d47fe1b714b3a2bae6f9c7.

• Build Log
• Test Artifacts
• Internal Jenkins Results

[brendandburns]

The e2e build error is some permission error, but this is failing to turn up clusters in my project, hang on while I figure out why...

[ixdy]

We ran out of disk space on the Jenkins master. Apologies for the noise.

[brendandburns]

Ok, I validated this in my own cluster, should be good to go from my side.

[k8s-bot]

GCE e2e build/test failed for commit 675d837.

• Build Log
• Test Artifacts
• Internal Jenkins Results

[ixdy]

@k8s-bot test this please

[k8s-bot]

GCE e2e build/test failed for commit 675d837.

• Build Log
• Test Artifacts
• Internal Jenkins Results

[dchen1107]

I believe this causes the issue on cluster initialization, I am reverting it.

[ixdy]

Interestingly, it looks like the final pre-merge Jenkins run also failed in the same way as #9760. I guess it really is starting to give some useful signal - if only we had listened to it. :)

[brendandburns]

Hrmph, sorry about that, I swear it turned up clusters successfully on my machine. I will debug further.