DLPX-73610 pin unzip package to version 6.0-21ubuntu1

[pzakha]

This is a temporary workaround to DLPX-73555. It should allow resuming the sync of the linux-package-mirror on master and 6.0/stage while we are working on fixing DLPX-73555.

Testing

Build new package: http://selfservice.jenkins.delphix.com/job/devops-gate/job/master/job/linux-pkg/job/custom/job/build-package/job/custom/1/console
Run combine-packages: http://selfservice.jenkins.delphix.com/job/devops-gate/job/master/job/linux-pkg/job/master/job/combine-packages/job/pre-push/171
Run ab-pre-push: http://selfservice.jenkins.delphix.com/job/devops-gate/job/master/job/appliance-build-orchestrator-pre-push/4568/

[prakashsurya]

Out of curiosity, if we're pulling in a prebuilt package from artifactory, what is the benefit of doing this in linux-pkg, vs. doing this in appliance-build? e.g. perhaps in the "build-ancillary-repository" step?

[pzakha]

Out of curiosity, if we're pulling in a prebuilt package from artifactory, what is the benefit of doing this in linux-pkg, vs. doing this in appliance-build? e.g. perhaps in the "build-ancillary-repository" step?

Not much of a benefit to be honest, I think we could very well do it from there. I can take a look at that.

[prakashsurya]

I don't mean to imply I'd rather us do this in appliance-build, I'm just trying to fully understand the underlying architecture for the design of our build system.. and why we do what we do, where we do it.

[pzakha]

After having an offline chat with Prakash, I've made a few changes to how we fetch already built debs.

Here's a summary of the changes:

1. This is adding a new meta linux-pkg package responsible of fetching all the already-built debs we want to use. Having a single meta package will make it easier to add/remove debs from there in the future.
2. I've added instructions for how and in which cases to add additional debs.
3. I've added a SHA256 check to fetched packages to make sure that the binaries downloaded are what we expect.

Additional changes:

• removed the java8 package since it hasn't been used for a long time.
• moved td-agent-prebuilt package into this new misc-debs package.

links to re-tests:
http://selfservice.jenkins.delphix.com/job/devops-gate/job/master/job/linux-pkg/job/custom/job/build-package/job/custom/3
http://selfservice.jenkins.delphix.com/job/devops-gate/job/master/job/linux-pkg/job/master/job/combine-packages/job/pre-push/175
http://selfservice.jenkins.delphix.com/job/devops-gate/job/master/job/appliance-build-orchestrator-pre-push/4575/