配置开发环境
Jimmy Song
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# Kubernetes开发环境
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# 配置Kubernetes开发环境
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## 配置开发环境
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我们将在Mac上使用docker环境编译kuberentes。
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```sh
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apt-get install -y gcc make socat git
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# install docker
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curl -fsSL https://get.docker.com/ | sh
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# install etcd
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curl -L https://github.com/coreos/etcd/releases/download/v3.0.10/etcd-v3.0.10-linux-amd64.tar.gz -o etcd-v3.0.10-linux-amd64.tar.gz && tar xzvf etcd-v3.0.10-linux-amd64.tar.gz && /bin/cp -f etcd-v3.0.10-linux-amd64/{etcd,etcdctl} /usr/bin && rm -rf etcd-v3.0.10-linux-amd64*
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# install golang
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curl -sL https://storage.googleapis.com/golang/go1.8.1.linux-amd64.tar.gz | tar -C /usr/local -zxf -
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export GOPATH=/gopath
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export PATH=$PATH:$GOPATH/bin:/usr/local/bin:/usr/local/go/bin/
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# Get essential tools for building kubernetes
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go get -u github.com/jteeuwen/go-bindata/go-bindata
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# Get kubernetes code
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mkdir -p $GOPATH/src/k8s.io
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git clone https://github.com/kubernetes/kubernetes $GOPATH/src/k8s.io/kubernetes
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cd $GOPATH/src/k8s.io/kubernetes
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# Start a local cluster
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export KUBERNETES_PROVIDER=local
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# export EXPERIMENTAL_CRI=true
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# export ALLOW_SECURITY_CONTEXT=yes
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# set dockerd --selinux-enabled
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# export NET_PLUGIN=kubenet
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hack/local-up-cluster.sh
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```
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打开另外一个终端，配置kubectl:
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```sh
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export KUBECONFIG=/var/run/kubernetes/admin.kubeconfig
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cluster/kubectl.sh
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```
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## 编译release版
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```sh
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make quick-release
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```
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## 容器集成开发环境
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## 安装依赖
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```
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hyper run -it feisky/kubernetes-dev bash
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# /hack/start-hyperd.sh
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# /hack/start-docker.sh
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# /hack/start-frakti.sh
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# /hack/start-kubernetes-frakti.sh
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# /hack/setup-kubectl.sh
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# cluster/kubectl.sh
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brew install gnu-tar
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```
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## 单元测试
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Docker环境，至少需要给容器分配4G内存，在低于3G内存的时候可能会编译失败。
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```sh
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# unit test a special package
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go test -v k8s.io/kubernetes/pkg/kubelet/kuberuntime
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```
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## 执行编译
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## e2e测试
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切换目录到kuberentes源码的根目录下执行：
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```sh
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make WHAT='test/e2e/e2e.test'
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make ginkgo
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`./build/run.sh make`可以在docker中执行跨平台编译出二进制文件。
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export KUBERNETES_PROVIDER=local
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go run hack/e2e.go -v -test --test_args='--ginkgo.focus=Port\sforwarding'
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go run hack/e2e.go -v -test --test_args='--ginkgo.focus=Feature:SecurityContext'
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```
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## Node e2e测试
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```sh
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export KUBERNETES_PROVIDER=local
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make test-e2e-node FOCUS="InitContainer" TEST_ARGS="--runtime-integration-type=cri"
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```
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## Bot命令
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- Jenkins verification: `@k8s-bot verify test this`
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- GCE E2E: `@k8s-bot cvm gce e2e test this`
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- Test all: `@k8s-bot test this please, issue #IGNORE`
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- CRI test: `@k8s-bot cri test this.`
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- Verity test: `@k8s-bot verify test this`
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- **LGTM (only applied if you are one of assignees):**: `/lgtm`
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- LGTM cancel: `/lgtm cancel`
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更多命令见[kubernetes test-infra](https://github.com/kubernetes/test-infra/blob/master/prow/commands.md)。
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## 有用的git命令
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拉取pull request到本地：
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```sh
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git fetch upstream pull/324/head:branch
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git fetch upstream pull/365/merge:branch
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```
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或者配置`.git/config`并运行`git fetch`拉取所有的pull requests:
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需要用的的docker镜像：
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```
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fetch = +refs/pull/*:refs/remotes/origin/pull/*
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gcr.io/google_containers/kube-cross:v1.7.5-2
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```
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## 用docker-machine创建虚拟机的方法
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我将该镜像备份到时速云上了，可供大家使用：
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```sh
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docker-machine create --driver google --google-project xxxx --google-machine-type n1-standard-2 --google-disk-size 30 kubernetes
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```
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index.tenxcloud.com/jimmy/kube-cross:v1.7.5-2
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```
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## Minikube启动本地cluster
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该镜像基于Ubuntu构建，大小2.15G，编译环境中包含以下软件：
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```sh
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$ minikube get-k8s-versions
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The following Kubernetes versions are available:
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- v1.5.1
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- v1.4.3
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...
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- Go1.7.5
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- etcd
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- protobuf
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- g++
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- 其他golang依赖包
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# http proxy is required in China
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$ minikube start --docker-env HTTP_PROXY=http://proxy-ip:port --docker-env HTTPS_PROXY=http://proxy-ip:port --vm-driver=xhyve --kubernetes-version="v1.6.2"
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```
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在我自己的电脑上的整个编译过程大概要半个小时。
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编译完成的二进制文件在`/_output/local/go/bin/`目录下。
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