Version and validation updates for romana networking.

[cgilmour]

This is a small update for Romana to update the version being installed, and make sure the version validation is correct - it now requires v1.7.x or higher.

It has been tested on AWS only, with a variety of versions:

• 1.6.0 - error attempting to create cluster, because version is unsupported
• 1.7.10 - no errors
• 1.8.3 - no errors

Hoping this can be squeezed into the upcoming 1.8 release.

[Globegitter]

@cgilmour Is updating an exsting cluster from romana preview.2 to GA also supported? (Given it is on k8s 1.7/1.8?)

[cgilmour]

@Globegitter yes.
If you're doing it manually, you'd need to update the image labels to v2.0.0, and make sure these two things are in your romana-agent daemonset spec: updateStrategy and additional environment variable

[justinsb]

/ok-to-test

/lgtm

Thanks for the update @cgilmour !

[k8s-ci-robot]

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[chrislovecnm]

travis is taking the day off. Closing and re-openning

[chrislovecnm]

Grumble ... Travis what is going on :(

[chrislovecnm]

@justinsb PTAL in the AM see if travis gets a clue

[justinsb]

Aha! Travis says "abuse detected": https://travis-ci.org/kubernetes/kops/requests

Will see if I can figure out what that actually means, and then force-merge after local testing