Adding shell scripts tests in e2e-framework

[aman556]

What this PR does / why we need it

This PR have two motive in e2e-framework.

• First it will add shell scripts to test :
  • Fluent-bit
  • cert-manager
  • contour
  • local-path-storage

Details for the Release Notes (PLEASE PROVIDE)

e2e-framework can test the packages like contour, fluent-bit, cert-manager and local-path-storage. No change in the
commands in e2e-framework for testing these packages. 
e2e-framework will be also add as a plugin in github workflow.

Which issue(s) this PR fixes

Fixes: #2243

Describe testing done for PR

Run ginkgo -v -- --packages="" --version="" --guest-cluster-name="" to check the working of shell scripts.

Special notes for your reviewer

The bash scripts to test packages follow these steps:

• Running tanzu package installed list to check the package which we are testing is already installed or not.
• Running tanzu package available list contour.community.tanzu.vmware.com for fetching the latest version of that package.
• Running tanzu package install pkgName --package-name pkgName.community.tanzu.vmware.com -f config.yaml --version "${version}" to install the package.
• Taking care of all the prerequisites.
• Ensuring that the package is working fine.
• Deleting all the prerequisites and the package.

[jpmcb]

FYI - converting this to a "Draft" PR. Please feel free to mark as ready when it's good for reviews

[aman556]

Latest approach:
The bash scripts are working as a smoke tests which are kept in test/e2e path with the structure.

├── Makefile
└── packages
    └── cert-manager
        └── 1.5.3
            └── cert-manager-test.sh

• The Makefile have make targets for each package to run the smoke tests as well as the ginkgo tests for the folders which have these test. All the changes are in test/e2e/smoke.
• make smoke-test will run all the ginkgo and smoke tests.
• To understand what shell scripts are doing i have explained in the special notes. There are smoke tests for other packages too will add in follow up PR's.
• In future using test/e2e/smoke-test/Makefile we will try to add this in github workflow.

[karuppiah7890]

@aman556 Could you kindly check the golangci-lint error and fix it? https://github.com/vmware-tanzu/community-edition/runs/4043770738?check_suite_focus=true#step:4:409

[karuppiah7890]

@aman556 If we plan to add GitHub workflows later in a separate PR, I would recommend updating the PR description including the release notes to reflect the expected state of this PR so that reviewing is easy

[aman556]

Thanks @karuppiah7890 for the feedback. I have fixed the golangci-lint error and also updated the PR description.

[karuppiah7890]

TODO

• Ensure there are no changes in Makefile file
• Ensure there are no changes in hack/tagger directory

[karuppiah7890]

General observation - we can rethink our sleep calls. I can see that it works, I just tried it out, but at times it may not work - as in, it may not be robust - sometimes we might need more sleep time. And adding more and more time to sleep can make the test run longer and also have a constant sleep / wait time. We can instead try to use kubectl wait wherever possible to have a non-constant sleep time but still maintain a max time out since we cannot sleep / wait indefinitely

[karuppiah7890]

Let's take care of improving and optimizing the sleep / wait strategy in a separate PR

[karuppiah7890]

LGTM! There are still some small nitty gritty things to take care of, which we can take care separately and also some things to smoothen out the rough edges. To avoid longer PR review times and longer PR changes, I'm going to merge this off. Let's pair on the next PR @aman556 and work on the e2e framework including the #2167 PR

I have squashed all the commits and put a small commit message (mostly from the first commit message of all the commits)

Merging it now!

[aman556]

Thanks @karuppiah7890 for giving your time in reviewing this PR and merging it will improve all the above things in the follow-up PR. Agree with all the changes for the improvement of the script. Thanks again Karuppiah means allot.