adding option to create and destroy kind clusters

[Abhishek627]

ISSUE TYPE

• Feature Pull Request

SUMMARY

Created a script to create and destroy KIND clusters which can be used to execute test and CD jobs. Added make targets for those and default make help.

Fixes #320

[Abhishek627]

@PrasadG193 Let me know this looks good or you had something else in mind.

[rahulchheda]

@Abhishek627 E2E tests seems to fail, could you resolve them. Here is the gist for it.

--- FAIL: TestRun/update (4.00s)
        --- FAIL: TestRun/update/update_resource (4.00s)
            --- FAIL: TestRun/update/update_resource/update_resource_when_IncludeDiff_is_set_to_false (2.00s)
                update.go:135: 
                    	Error Trace:	update.go:135
                    	Error:      	Not equal: 
                    	            	expected: notify.EventStatus{Type:"update", Level:"warn", Reason:"", Error:"", Messages:[]string(nil)}
                    	            	actual  : notify.EventStatus{Type:"create", Level:"info", Reason:"", Error:"", Messages:[]string(nil)}
                    	            	
                    	            	Diff:
                    	            	--- Expected
                    	            	+++ Actual
                    	            	@@ -1,4 +1,4 @@
                    	            	 (notify.EventStatus) {
                    	            	- Type: (config.EventType) (len=6) update,
                    	            	- Level: (config.Level) (len=4) "warn",
                    	            	+ Type: (config.EventType) (len=6) create,
                    	            	+ Level: (config.Level) (len=4) "info",
                    	            	  Reason: (string) "",
                    	Test:       	TestRun/update/update_resource/update_resource_when_IncludeDiff_is_set_to_false
                update.go:136: 
                    	Error Trace:	update.go:136
                    	Error:      	Not equal: 
                    	            	expected: "Pod *test/test-pod-update-diff-false* has been updated in *test-cluster-1* cluster\n"
                    	            	actual  : "Pod *test/test-pod-update-diff-false* has been created in *test-cluster-1* cluster\n```\nRecommendations:\n- pod 'test-pod-update-diff-false' creation without labels should be avoided.\n```"
                    	            	
                    	            	Diff:
                    	            	--- Expected
                    	            	+++ Actual
                    	            	@@ -1,2 +1,5 @@
                    	            	-Pod *test/test-pod-update-diff-false* has been updated in *test-cluster-1* cluster
                    	            	-
                    	            	+Pod *test/test-pod-update-diff-false* has been created in *test-cluster-1* cluster
                    	            	+```
                    	            	+Recommendations:
                    	            	+- pod 'test-pod-update-diff-false' creation without labels should be avoided.
                    	            	+```
                    	Test:       	TestRun/update/update_resource/update_resource_when_IncludeDiff_is_set_to_false
            --- PASS: TestRun/update/update_resource/create_and_update_pod_in_configured_namespace (2.00s)
        --- PASS: TestRun/update/skip_update_event (0.00s)
            --- PASS: TestRun/update/skip_update_event/skip_update_event_for_namespaces_not_configured (0.00s)
            --- PASS: TestRun/update/skip_update_event/skip_update_event_for_resources_not_added (0.00s)
    --- PASS: TestRun/delete (0.00s)
        --- PASS: TestRun/delete/delete_resource (0.00s)
            --- PASS: TestRun/delete/delete_resource/skip_delete_event_for_resources_not_configured (0.00s)
FAIL
FAIL	github.com/infracloudio/botkube/test/e2e	30.060s
FAIL
Error: Makefile:34: recipe for target 'test' failed
make: *** [test] Error 1
Error: Process completed with exit code 2.

[PrasadG193]

@rahulchheda e2e test failure issue is unrelated. We are tracking that with #384

[chetanpdeshmukh]

Hello @Abhishek627 ,
Thanks again for the PR!

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