k8s开发环境

在搭建开发环境以前, 请Try KubernetesGet Started and CONCEPTShtml

 能够本身使用minikube 来搭建个环境, 本身玩一玩。 node

 

 K8s须要一些依赖。 参看官方文档linux

https://github.com/kubernetes/community/blob/master/contributors/devel/running-locally.mdgit

1. 须要安装 linuxgithub

 

2. 安装dockergolang

wget -O- https://get.docker.com/ |bash
sudo usermod -aG docker $USER

 

3. 安装etcddocker

hack/install-etcd.sh  # Installs in ./third_party/etcd
echo "export PATH=\"\$PATH:$(pwd)/third_party/etcd\"" >> ~/.profile  # Add to PATH

 

4. 安装goubuntu

sudo add-apt-repository ppa:gophers/archive
sudo apt update
sudo apt-get install golang-1.9-go
 
cat >> ~/.profile <<<'
GOROOT=`go env |grep "GOROOT" |cut -d "=" -f2`
GOROOT=${GOROOT#\"}
GOROOT=${GOROOT%\"}

GOPATH=`go env |grep GOPATH |cut -d "=" -f 2`
GOPATH=${GOPATH%\"}
GOPATH=${GOPATH#\"}'


echo "export PATH=\$PATH:/usr/lib/go-1.9/bin" >> ~/.profile
source ~/.profile

 

5. 安装 opensslapi

 

6. 安装 CFSSLbash

go get -u github.com/cloudflare/cfssl/cmd/...
echo "export PATH=\$PATH:\$GOPATH/bin" >> ~/.profile
source ~/.profile

 

7. 下载源码

git clone --depth=1 https://github.com/kubernetes/kubernetes.git



8. 编译安装k8s

cd kubernetes

hack/local-up-cluster.sh

 

 9. 能够开发了。

请参看 devel  重点 coding-conventions

 go调试, 请参考 golang debug, 推荐使用Delve

 

=============================

参考文档:

https://kubernetes.io/

开发者主要看看: Community 和 Documentation

 

附录:

编译过程:

$ hack/local-up-cluster.sh
WARNING : The kubelet is configured to not fail if swap is enabled; production deployments should disable swap.
WARNING : This script MAY be run as root for docker socket / iptables functionality; if failures occur, retry as root.
make: Entering directory '/home/ubuntu/kubernetes'
make[1]: Entering directory '/home/ubuntu/kubernetes'
+++ [0108 11:10:43] Building the toolchain targets:
    k8s.io/kubernetes/hack/cmd/teststale
    k8s.io/kubernetes/vendor/github.com/jteeuwen/go-bindata/go-bindata
+++ [0108 11:10:44] Generating bindata:
    test/e2e/generated/gobindata_util.go
~/kubernetes ~/kubernetes/test/e2e/generated
~/kubernetes/test/e2e/generated
+++ [0108 11:10:45] Building go targets for linux/amd64:
    ./vendor/k8s.io/code-generator/cmd/deepcopy-gen
+++ [0108 11:10:55] Building the toolchain targets:
    k8s.io/kubernetes/hack/cmd/teststale
    k8s.io/kubernetes/vendor/github.com/jteeuwen/go-bindata/go-bindata
+++ [0108 11:10:55] Generating bindata:
    test/e2e/generated/gobindata_util.go
~/kubernetes ~/kubernetes/test/e2e/generated
~/kubernetes/test/e2e/generated
+++ [0108 11:10:56] Building go targets for linux/amd64:
    ./vendor/k8s.io/code-generator/cmd/defaulter-gen
+++ [0108 11:11:03] Building the toolchain targets:
    k8s.io/kubernetes/hack/cmd/teststale
    k8s.io/kubernetes/vendor/github.com/jteeuwen/go-bindata/go-bindata
+++ [0108 11:11:03] Generating bindata:
    test/e2e/generated/gobindata_util.go
~/kubernetes ~/kubernetes/test/e2e/generated
~/kubernetes/test/e2e/generated
+++ [0108 11:11:04] Building go targets for linux/amd64:
    ./vendor/k8s.io/code-generator/cmd/conversion-gen
+++ [0108 11:11:13] Building the toolchain targets:
    k8s.io/kubernetes/hack/cmd/teststale
    k8s.io/kubernetes/vendor/github.com/jteeuwen/go-bindata/go-bindata
+++ [0108 11:11:13] Generating bindata:
    test/e2e/generated/gobindata_util.go
~/kubernetes ~/kubernetes/test/e2e/generated
~/kubernetes/test/e2e/generated
+++ [0108 11:11:14] Building go targets for linux/amd64:
    ./vendor/k8s.io/code-generator/cmd/openapi-gen
make[1]: Leaving directory '/home/ubuntu/kubernetes'
+++ [0108 11:11:23] Building the toolchain targets:
    k8s.io/kubernetes/hack/cmd/teststale
    k8s.io/kubernetes/vendor/github.com/jteeuwen/go-bindata/go-bindata
+++ [0108 11:11:23] Generating bindata:
    test/e2e/generated/gobindata_util.go
~/kubernetes ~/kubernetes/test/e2e/generated
~/kubernetes/test/e2e/generated
+++ [0108 11:11:24] Building go targets for linux/amd64:
    cmd/kubectl
    cmd/hyperkube
+++ [0108 11:11:24] +++ Warning: stdlib pkg with cgo flag not found.
+++ [0108 11:11:24] +++ Warning: stdlib pkg cannot be rebuilt since /usr/lib/go-1.9/pkg is not writable by ubuntu
+++ [0108 11:11:24] +++ Warning: Make /usr/lib/go-1.9/pkg writable for ubuntu for a one-time stdlib install, Or
+++ [0108 11:11:24] +++ Warning: Rebuild stdlib using the command 'CGO_ENABLED=0 go install -a -installsuffix cgo std'
+++ [0108 11:11:24] +++ Falling back to go build, which is slower
    **
make: Leaving directory '/home/ubuntu/kubernetes'
WARNING: No swap limit support
Kubelet cgroup driver defaulted to use: cgroupfs
API SERVER insecure port is free, proceeding...
API SERVER secure port is free, proceeding...
Detected host and ready to start services.  Doing some housekeeping first...
Using GO_OUT /home/ubuntu/kubernetes/_output/local/bin/linux/amd64
Starting services now!
Starting etcd
etcd --advertise-client-urls http://127.0.0.1:2379 --data-dir /tmp/tmp.lG7Vdi3iOj --listen-client-urls http://127.0.0.1:2379 --debug > "/dev/null" 2>/dev/null
Waiting for etcd to come up.
+++ [0108 11:14:07] On try 1, etcd: : http://127.0.0.1:2379
{"action":"set","node":{"key":"/_test","value":"","modifiedIndex":4,"createdIndex":4}}
Generating a 2048 bit RSA private key
...............+++
.....................................................................................................................+++
writing new private key to '/var/run/kubernetes/server-ca.key'
-----
Generating a 2048 bit RSA private key
..................+++
................................................+++
writing new private key to '/var/run/kubernetes/client-ca.key'
-----
Generating a 2048 bit RSA private key
....................................................................+++
.....................................+++
writing new private key to '/var/run/kubernetes/request-header-ca.key'
-----
2018/01/08 11:14:09 [INFO] generate received request
2018/01/08 11:14:09 [INFO] received CSR
2018/01/08 11:14:09 [INFO] generating key: rsa-2048
2018/01/08 11:14:10 [INFO] encoded CSR
2018/01/08 11:14:10 [INFO] signed certificate with serial number 715123456948917083412158572796494175744197307872
2018/01/08 11:14:10 [INFO] generate received request
2018/01/08 11:14:10 [INFO] received CSR
2018/01/08 11:14:10 [INFO] generating key: rsa-2048
2018/01/08 11:14:10 [INFO] encoded CSR
2018/01/08 11:14:10 [INFO] signed certificate with serial number 129637119914906282839116246736967141392059620053
2018/01/08 11:14:10 [INFO] generate received request
2018/01/08 11:14:10 [INFO] received CSR
2018/01/08 11:14:10 [INFO] generating key: rsa-2048
2018/01/08 11:14:11 [INFO] encoded CSR
2018/01/08 11:14:11 [INFO] signed certificate with serial number 165024087692961687999165752394062992892543742472
2018/01/08 11:14:11 [INFO] generate received request
2018/01/08 11:14:11 [INFO] received CSR
2018/01/08 11:14:11 [INFO] generating key: rsa-2048
2018/01/08 11:14:11 [INFO] encoded CSR
2018/01/08 11:14:11 [INFO] signed certificate with serial number 494758003908811925730802793525711755484053117292
2018/01/08 11:14:12 [INFO] generate received request
2018/01/08 11:14:12 [INFO] received CSR
2018/01/08 11:14:12 [INFO] generating key: rsa-2048
2018/01/08 11:14:12 [INFO] encoded CSR
2018/01/08 11:14:12 [INFO] signed certificate with serial number 413859821971649967403269044690888435909488107601
2018/01/08 11:14:12 [INFO] generate received request
2018/01/08 11:14:12 [INFO] received CSR
2018/01/08 11:14:12 [INFO] generating key: rsa-2048
2018/01/08 11:14:12 [INFO] encoded CSR
2018/01/08 11:14:12 [INFO] signed certificate with serial number 436494598670785810730542474619179243660984927821
2018/01/08 11:14:13 [INFO] generate received request
2018/01/08 11:14:13 [INFO] received CSR
2018/01/08 11:14:13 [INFO] generating key: rsa-2048
2018/01/08 11:14:13 [INFO] encoded CSR
2018/01/08 11:14:13 [INFO] signed certificate with serial number 527478716993845979463342446982400322373891769061
2018/01/08 11:14:13 [INFO] generate received request
2018/01/08 11:14:13 [INFO] received CSR
2018/01/08 11:14:13 [INFO] generating key: rsa-2048
2018/01/08 11:14:14 [INFO] encoded CSR
2018/01/08 11:14:14 [INFO] signed certificate with serial number 403955253617662981707875676047491510407377487753
2018/01/08 11:14:14 [INFO] generate received request
2018/01/08 11:14:14 [INFO] received CSR
2018/01/08 11:14:14 [INFO] generating key: rsa-2048
2018/01/08 11:14:14 [INFO] encoded CSR
2018/01/08 11:14:14 [INFO] signed certificate with serial number 162848926558084611619120993030850770010628652872
Waiting for apiserver to come up
+++ [0108 11:14:24] On try 7, apiserver: : ok
Cluster "local-up-cluster" set.
use 'kubectl --kubeconfig=/var/run/kubernetes/admin-kube-aggregator.kubeconfig' to use the aggregated API server
service "kube-dns" created
serviceaccount "kube-dns" created
configmap "kube-dns" created
deployment "kube-dns" created
Kube-dns addon successfully deployed.
kubelet ( 6858 ) is running.
Create default storage class for 
storageclass "standard" created
Local Kubernetes cluster is running. Press Ctrl-C to shut it down.

Logs:
  /tmp/kube-apiserver.log
  /tmp/kube-controller-manager.log
  /tmp/kube-proxy.log
  /tmp/kube-scheduler.log
  /tmp/kubelet.log

To start using your cluster, you can open up another terminal/tab and run:

  export KUBECONFIG=/var/run/kubernetes/admin.kubeconfig
  cluster/kubectl.sh

Alternatively, you can write to the default kubeconfig:

  export KUBERNETES_PROVIDER=local

  cluster/kubectl.sh config set-cluster local --server=https://localhost:6443 --certificate-authority=/var/run/kubernetes/server-ca.crt
  cluster/kubectl.sh config set-credentials myself --client-key=/var/run/kubernetes/client-admin.key --client-certificate=/var/run/kubernetes/client-admin.crt
  cluster/kubectl.sh config set-context local --cluster=local --user=myself
  cluster/kubectl.sh config use-context local
  cluster/kubectl.sh
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