Building chaos-scheduler (#1)

* Add scheduling logic

Signed-off-by: Sanjay Nathani <[email protected]>

.circleci/config.yml

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+# Golang CircleCI 2.0 configuration file
+#
+# Check https://circleci.com/docs/2.0/language-go/ for more details
+version: 2.1
+
+jobs:
+
+  build:
+    machine: 
+      image: circleci/classic:201808-01
+    working_directory: ~/go/src/github.com/litmuschaos/chaos-scheduler
+    environment:
+      K8S_VERSION: v1.12.0
+      KUBECONFIG: /home/circleci/.kube/config
+      MINIKUBE_VERSION: v1.3.1
+      HOME: /home/circleci
+      CHANGE_MINIKUBE_NONE_USER: true
+      REPONAME: litmuschaos
+      IMGNAME: chaos-scheduler
+      IMGTAG: ci
+    steps:
+      - checkout
+      - run:
+         name: Setup kubectl
+         command: | 
+           curl -Lo kubectl https://storage.googleapis.com/kubernetes-release/release/${K8S_VERSION}/bin/linux/amd64/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/
+      - run:
+          name: Setup minikube
+          command: |
+            curl -Lo minikube https://storage.googleapis.com/minikube/releases/${MINIKUBE_VERSION}/minikube-linux-amd64  && chmod +x minikube
+            sudo install minikube /usr/local/bin
+      - run:
+          name: Start minikube
+          command: |
+            sudo -E minikube start --vm-driver=none --cpus 2 --memory 4096 --kubernetes-version=${K8S_VERSION}
+      - run: mkdir -p workspace
+      - run: 
+          name: Setup ENV
+          command: |
+            echo 'export GOPATH="$HOME/go"' >> workspace/env-vars 
+            echo 'export PATH="$GOPATH/bin:$PATH"' >> workspace/env-vars
+            echo 'export REPONAME="litmuschaos"' >> workspace/env-vars
+            echo 'export IMGNAME="chaos-scheduler"' >> workspace/env-vars
+            echo 'export IMGTAG="ci"' >> workspace/env-vars
+            cat workspace/env-vars >> $BASH_ENV
+            source $BASH_ENV
+      - run: make deps
+      - run: make gotasks
+      - run: |
+          docker build . -f build/Dockerfile -t ${REPONAME}/${IMGNAME}:${IMGTAG}
+      - run: make test 
+      - run: |
+          docker save -o workspace/image.tar ${REPONAME}/${IMGNAME}:${IMGTAG}
+      - run: bash <(curl -s https://codecov.io/bash) -vz 
+      - persist_to_workspace:
+          root: workspace 
+          paths: 
+            - image.tar
+            - env-vars
+
+  push:
+    machine: 
+      image: circleci/classic:201808-01
+    environment:
+      IMGTAG: ci
+    working_directory: ~/go/src/github.com/litmuschaos/chaos-scheduler
+    steps: 
+      - attach_workspace:
+          at: /tmp/workspace
+      - run: |
+          cat /tmp/workspace/env-vars >> $BASH_ENV
+      - checkout
+      - run: |
+          docker load -i /tmp/workspace/image.tar
+          ~/go/src/github.com/litmuschaos/chaos-scheduler/buildscripts/push --type=ci
+
+  trivy-check:
+    machine: true
+    environment:
+      TRIVYARCH: "64bit"
+    steps:
+      - run: |
+          export VERSION=$(curl --silent "https://api.github.com/repos/aquasecurity/trivy/releases/latest" | grep '"tag_name":' | sed -E 's/.*"v([^"]+)".*/\1/')
+          echo ${VERSION}
+          sudo apt-get update
+          sudo apt-get install -y rpm
+          wget https://github.com/aquasecurity/trivy/releases/download/v${VERSION}/trivy_${VERSION}_Linux-${TRIVYARCH}.tar.gz
+          tar zxvf trivy_${VERSION}_Linux-${TRIVYARCH}.tar.gz
+      - run: |
+          ./trivy --exit-code 0 --severity HIGH --no-progress litmuschaos/chaos-scheduler:ci
+          ./trivy --exit-code 0 --severity CRITICAL --no-progress litmuschaos/chaos-scheduler:ci
+          
+  release: 
+    machine: 
+      image: circleci/classic:201808-01
+    environment:
+      IMGTAG: ci
+    working_directory: ~/go/src/github.com/litmuschaos/chaos-scheduler
+    steps: 
+      - attach_workspace:
+          at: /tmp/workspace
+      - run: |
+          cat /tmp/workspace/env-vars >> $BASH_ENV
+      - checkout 
+      - run: | 
+          docker load -i /tmp/workspace/image.tar
+          ~/go/src/github.com/litmuschaos/chaos-scheduler/buildscripts/push --type=release
+
+workflows:
+  version: 2
+  operator_build_deploy: 
+    jobs:
+      - build:
+          filters:
+            ## build jobs needs to be run for branch commits as well as tagged releases
+            tags:
+              only: /.*/
+      - trivy-check:
+          requires:
+            - build
+          filters:
+            tags:
+              only: /.*/
+      - push:
+          requires: 
+            - build
+          filters:
+            ## push jobs needs to be run for branch commits as well as tagged releases
+            ## docker images push won't be performed for PRs due to ENV not being applied
+            tags:
+              only: /.*/
+      - release:
+          requires:
+            - build
+          filters:
+            ## release jobs needs to be run for tagged releases alone & not for any branch commits
+            branches:
+              ignore: /.*/
+            tags:
+              only: /.*/

.gitignore

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+build/_output
+*.swp
+*.orig
+.idea/

Makefile

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+# Makefile for building Chaos Exporter
+# Reference Guide - https://www.gnu.org/software/make/manual/make.html
+
+IS_DOCKER_INSTALLED = $(shell which docker >> /dev/null 2>&1; echo $$?)
+
+# list only our namespaced directories
+PACKAGES = $(shell go list ./...)
+
+# docker info
+DOCKER_REPO ?= litmuschaos
+DOCKER_IMAGE ?= chaos-scheduler
+DOCKER_TAG ?= latest
+
+.PHONY: all
+all: deps format lint build test dockerops
+
+.PHONY: help
+help:
+	@echo ""
+	@echo "Usage:-"
+	@echo "\tmake deps      -- sets up dependencies for image build"
+	@echo "\tmake gotasks   -- builds the chaos scheduler binary"
+	@echo "\tmake dockerops -- builds & pushes the chaos scheduler image"
+	@echo ""
+
+.PHONY: deps
+deps: _build_check_docker godeps 
+
+.PHONY: godeps
+godeps:
+	@echo ""
+	@echo "INFO:\tverifying dependencies for chaos scheduler build ..."
+	@go get  -v golang.org/x/lint/golint
+	@go get  -v golang.org/x/tools/cmd/goimports
+
+.PHONY: _build_check_docker
+_build_check_docker:
+	@if [ $(IS_DOCKER_INSTALLED) -eq 1 ]; \
+		then echo "" \
+		&& echo "ERROR:\tdocker is not installed. Please install it before build." \
+		&& echo "" \
+		&& exit 1; \
+		fi;
+
+.PHONY: gotasks
+gotasks: format lint build
+
+.PHONY: format
+format:
+	@echo "------------------"
+	@echo "--> Running go fmt"
+	@echo "------------------"
+	@go fmt $(PACKAGES)
+
+.PHONY: lint
+lint:
+	@echo "------------------"
+	@echo "--> Running golint"
+	@echo "------------------"
+	@golint $(PACKAGES)
+	@echo "------------------"
+	@echo "--> Running go vet"
+	@echo "------------------"
+	@go vet $(PACKAGES)
+
+.PHONY: build  
+build:
+	@echo "------------------"
+	@echo "--> Build Chaos Scheduler"
+	@echo "------------------"
+	@go build -o ${GOPATH}/src/github.com/litmuschaos/chaos-scheduler/build/_output/bin/chaos-scheduler -gcflags all=-trimpath=${GOPATH} -asmflags all=-trimpath=${GOPATH} github.com/litmuschaos/chaos-scheduler/cmd/manager 
+
+.PHONY: codegen
+codegen:
+	@echo "------------------"
+	@echo "--> Updating Codegen"
+	@echo "------------------"
+	${GOPATH}/src/k8s.io/code-generator/generate-groups.sh all \
+	github.com/litmuschaos/chaos-scheduler/pkg/client github.com/litmuschaos/chaos-scheduler/pkg/apis \
+	litmuschaos:v1alpha1
+
+.PHONY: test
+test:
+	@echo "------------------"
+	@echo "--> Run Go Test"
+	@echo "------------------"
+	@go test ./... -v 
+
+.PHONY: dockerops 
+dockerops: 
+	@echo "------------------"
+	@echo "--> Build & Push chaos-scheduler docker image" 
+	@echo "------------------"
+	sudo docker build . -f build/Dockerfile -t $(DOCKER_REPO)/$(DOCKER_IMAGE):$(DOCKER_TAG)