adding option to create and destroy kind clusters

Makefile

@@ -4,12 +4,16 @@ TAG=$(shell cut -d'=' -f2- .release)
 .DEFAULT_GOAL := build
 .PHONY: release git-tag check-git-status build container-image pre-build tag-image publish test system-check
 
-#Docker Tasks
-#Make a release
+# Show this help.
+help:
+	@awk '/^#/{c=substr($$0,3);next}c&&/^[[:alpha:]][[:alnum:]_-]+:/{print substr($$1,1,index($$1,":")),c}1{c=0}' $(MAKEFILE_LIST) | column -s: -t
+
+# Docker Tasks
+# Make a release
 release: check-git-status test container-image tag-image publish git-tag
 	@echo "Successfully releeased version $(TAG)"
 
-#Create a git tag
+# Create a git tag
 git-tag:
 	@echo "Creating a git tag"
 	@git add .release helm/botkube deploy-all-in-one.yaml deploy-all-in-one-tls.yaml CHANGELOG.md
@@ -18,7 +22,7 @@ git-tag:
 	@git push --tags origin develop;
 	@echo 'Git tag pushed successfully' ;
 
-#Check git status
+# Check git status
 check-git-status:
 	@echo "Checking git status"
 	@if [ -n "$(shell git tag | grep $(TAG))" ] ; then echo 'ERROR: Tag already exists' && exit 1 ; fi
@@ -30,17 +34,18 @@ test: system-check
 	@echo "Starting unit and integration tests"
 	@./hack/runtests.sh
 
-#Build the binary
+# Build the binary
 build: pre-build
-	@cd cmd/botkube;GOOS_VAL=$(shell go env GOOS) GOARCH_VAL=$(shell go env GOARCH) go build -o $(shell go env GOPATH)/bin/botkube 
+	@cd cmd/botkube;GOOS_VAL=$(shell go env GOOS) GOARCH_VAL=$(shell go env GOARCH) go build -o $(shell go env GOPATH)/bin/botkube
 	@echo "Build completed successfully"
-#Build the image
+
+# Build the image
 container-image: pre-build
 	@echo "Building docker image"
 	@docker build --build-arg GOOS_VAL=$(shell go env GOOS) --build-arg GOARCH_VAL=$(shell go env GOARCH) -t $(IMAGE_REPO) -f build/Dockerfile --no-cache .
 	@echo "Docker image build successfully"
 
-#system checks
+# system checks
 system-check:
 	@echo "Checking system information"
 	@if [ -z "$(shell go env GOOS)" ] || [ -z "$(shell go env GOARCH)" ] ; \
@@ -52,17 +57,26 @@ system-check:
 	echo 'System information checks passed.'; \
 	fi ;
 
-#Pre-build checks
+# Pre-build checks
 pre-build: system-check
 
-#Tag images
+# Tag images
 tag-image:
 	@echo 'Tagging image'
 	@docker tag $(IMAGE_REPO) $(IMAGE_REPO):$(TAG)
 
-#Docker push image
+# Docker push image
 publish:
 	@echo "Pushing docker image to repository"
 	@docker login
 	@docker push $(IMAGE_REPO):$(TAG)
 	@docker push $(IMAGE_REPO):latest
+
+# Create KIND cluster
+create-kind: system-check
+	@./hack/kind-cluster.sh create-kind
+
+# Destroy KIND cluster
+destroy-kind: system-check
+	@./hack/kind-cluster.sh destroy-kind
+

hack/kind-cluster.sh

@@ -0,0 +1,58 @@
+#!/bin/bash
+# Copyright (c) 2019 InfraCloud Technologies
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+set -e
+
+install_kind() {
+  echo "Installing KIND cluster"
+  GO111MODULE="on" go get sigs.k8s.io/kind@v0.9.0
+}
+
+create_kind_cluster() {
+  install_kind
+  echo "creating KIND cluster"
+  kind create cluster --name kind-cicd
+}
+
+destroy_kind_cluster() {
+  echo "destroying KIND cluster"
+  kind delete cluster --name kind-cicd
+}
+
+help() {
+  usage="$(basename "$0") [option] -- Script to create or destroy KIND cluster.
+  Available options are destroy-kind, create-kind or help"
+  echo $usage
+}
+
+
+if [ $# -gt 1 ]; then help ;fi
+case "${1}" in
+  create-kind)
+    create_kind_cluster
+    ;;
+  destroy-kind)
+    destroy_kind_cluster
+    ;;
+  *)
+    help
+    exit 1
+esac
+