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linux k8s 源码编译及单集群测试
作者：2023面试高手 | 2024-02-11 14:04:09
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linux k8s 源码编译及单集群测试
概述
此文详细说明在 centos 7上编译 k8s 源码，并运行单个集群，测试用例 nginx
# 找不到 vim 等这种源找不到，挂到本地安装 iso 上
[root@test kubernetes]# mount /dev/cdrom /mnt
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实践
安装插件
yum install -y gcc g++ gawk autoconf automake python3-cmarkgfm
yum install -y acl libacl1-dev
yum install -y attr libattr1-dev
yum install -y libxxhash-dev libzstd-dev liblz4-dev libssl-dev jq python3-pip
yum install -y vim wget
yum install -y ca-certificates curl gnupg
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docker 在线安装
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
阿里云
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
[root@test kubernetes]# yum -y install yum-utils
yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine
yum install -y yum-utils
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
[root@test kubernetes]# yum install container-selinux
yum list docker-ce --showduplicates|sort -r
# To install the latest version, run:
yum install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
systemctl start docker
docker run hello-world
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系统重启有问题
[root@test kubernetes]# systemctl start docker
[root@test kubernetes]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
[root@test kubernetes]# docker -v
Docker version 25.0.2, build 29cf629
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containerd安装
本次采用 yum 安装模式。
二进制安装
wget https://github.com/containerd/containerd/releases/download/v1.7.13/cri-containerd-cni-1.7.13-linux-amd64.tar.gz
curl https://github.com/containerd/containerd/releases/download/v1.7.13/cri-containerd-cni-1.7.13-linux-amd64.tar.gz
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yum安装
# 获取YUM源
[root@test ~]# wget -O /etc/yum.repos.d/docker-ce.repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
--2024-02-04 13:52:47-- https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
正在解析主机 mirrors.aliyun.com (mirrors.aliyun.com)... 113.219.178.241, 101.226.26.145, 113.219.178.228, ...
正在连接 mirrors.aliyun.com (mirrors.aliyun.com)|113.219.178.241|:443... 已连接。
已发出 HTTP 请求，正在等待回应... 200 OK
长度：2081 (2.0K) [application/octet-stream]
正在保存至: “/etc/yum.repos.d/docker-ce.repo”
100%[==========================================================================================================================================>] 2,081 --.-K/s 用时 0s
2024-02-04 13:52:47 (183 MB/s) - 已保存 “/etc/yum.repos.d/docker-ce.repo” [2081/2081])
# 使用yum命令安装
[root@test ~]# yum -y install containerd.io
已加载插件：fastestmirror
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* elrepo: ftp.yz.yamagata-u.ac.jp
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
file:///mnt/repodata/repomd.xml: [Errno 14] curl#37 - "Couldn't open file /mnt/repodata/repomd.xml"
正在尝试其它镜像。
软件包 containerd.io-1.6.28-3.1.el7.x86_64 已安装并且是最新版本
无须任何处理
# 使用rpm -qa命令查看是否安装
[root@test ~]# rpm -qa | grep containerd
containerd.io-1.6.28-3.1.el7.x86_64
# 设置containerd服务启动及开机自启动
[root@test ~]# systemctl enable containerd
Created symlink from /etc/systemd/system/multi-user.target.wants/containerd.service to /usr/lib/systemd/system/containerd.service.
[root@test ~]# systemctl start containerd
# 查看containerd服务启动状态
[root@test ~]# systemctl status containerd
● containerd.service - containerd container runtime
Loaded: loaded (/usr/lib/systemd/system/containerd.service; enabled; vendor preset: disabled)
Active: active (running) since 日 2024-02-04 13:23:26 CST; 31min ago
Docs: https://containerd.io
Main PID: 2363 (containerd)
CGroup: /system.slice/containerd.service
└─2363 /usr/bin/containerd
2月 04 13:23:26 test containerd[2363]: time="2024-02-04T13:23:26.608700310+08:00" level=info msg="loading plugin \"io.containerd.grpc.v1.tasks\"..." type=io.containerd.grpc.v1
2月 04 13:23:26 test systemd[1]: Started containerd container runtime.
2月 04 13:23:26 test containerd[2363]: time="2024-02-04T13:23:26.608713874+08:00" level=info msg="loading plugin \"io.containerd.grpc.v1.version\"..." type=io.containerd.grpc.v1
2月 04 13:23:26 test containerd[2363]: time="2024-02-04T13:23:26.608726440+08:00" level=info msg="loading plugin \"io.containerd.tracing.processor.v1.otlp\"..." type...rocessor.v1
2月 04 13:23:26 test containerd[2363]: time="2024-02-04T13:23:26.608790190+08:00" level=info msg="skip loading plugin \"io.containerd.tracing.processor.v1.otlp\"..."...rocessor.v1
2月 04 13:23:26 test containerd[2363]: time="2024-02-04T13:23:26.608815589+08:00" level=info msg="loading plugin \"io.containerd.internal.v1.tracing\"..." type=io.co...internal.v1
2月 04 13:23:26 test containerd[2363]: time="2024-02-04T13:23:26.609120481+08:00" level=error msg="failed to initialize a tracing processor \"otlp\"" error="no OpenT...kip plugin"
2月 04 13:23:26 test containerd[2363]: time="2024-02-04T13:23:26.610517213+08:00" level=info msg=serving... address=/run/containerd/containerd.sock.ttrpc
2月 04 13:23:26 test containerd[2363]: time="2024-02-04T13:23:26.611638647+08:00" level=info msg=serving... address=/run/containerd/containerd.sock
2月 04 13:23:26 test containerd[2363]: time="2024-02-04T13:23:26.612263169+08:00" level=info msg="containerd successfully booted in 0.053850s"
Hint: Some lines were ellipsized, use -l to show in full.
# 安装Containerd时ctr命令亦可使用，ctr命令主要用于管理容器及容器镜像等。
# 使用ctr命令查看Containerd客户端及服务端相关信息。
[root@test ~]# ctr version
Client:
Version: 1.6.28
Revision: ae07eda36dd25f8a1b98dfbf587313b99c0190bb
Go version: go1.20.13
Server:
Version: 1.6.28
Revision: ae07eda36dd25f8a1b98dfbf587313b99c0190bb
UUID: c839d914-41a9-469f-a3ab-590ced3f6acf
[root@test ~]#
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修改containder配置文件
# 创建配置文件
containerd config default > /etc/containerd/config.toml
# 添加配置
sed -i 's/SystemdCgroup \= false/SystemdCgroup \= true/' /etc/containerd/config.toml
sed -i 's/snapshotter = "overlayfs"/snapshotter = "native"/' /etc/containerd/config.toml
sed -i '/\[plugins\."io\.containerd\.grpc\.v1\.cri"\.registry\.mirrors\]/a\ [plugins."io.containerd.grpc.v1.cri".registry.mirrors."docker.io"]\n endpoint = ["https://registry.aliyuncs.com" ,"https://registry-1.docker.io"]' /etc/containerd/config.toml
# 取消这个配置
[root@test kubernetes]# cat /etc/containerd/config.toml | grep -n "sandbox_image"
61: sandbox_image = "registry.k8s.io/pause:3.6"
systemctl restart containerd
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# 这个不要配置，测试时不要配置
SystemdCgroup = false
SystemdCgroup = true
# 被替换
[plugins."io.containerd.grpc.v1.cri".registry.mirrors]
[plugins."io.containerd.grpc.v1.cri".registry.mirrors."docker.io"]
endpoint = ["https://registry.aliyuncs.com" ,"https://registry-1.docker.io"]
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cni
这个网好的话，可是不安装，启动时会自动安装的
# 手动下载，使用命令没下载下来
wget https://github.com/containernetworking/plugins/releases/download/v1.4.0/cni-plugins-linux-amd64-v1.4.0.tgz
[root@test ~]# ls
anaconda-ks.cfg cni-plugins-linux-amd64-v1.1.1.tgz default.etcd etcd go go1.20.13.linux-amd64.tar.gz
[root@test ~]# mkdir -p /opt/cni/bin
[root@test ~]# tar -zxf cni-plugins-linux-amd64-v1.1.1.tgz -C /opt/cni/bin
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etcd
这个需要预先安装
ETCD_VER=v3.5.12
curl -L https://storage.googleapis.com/etcd/${ETCD_VER}/etcd-${ETCD_VER}-linux-amd64.tar.gz -o /tmp/etcd-${ETCD_VER}-linux-amd64.tar.gz
mkdir -p ~/etcd
tar xzvf /tmp/etcd-${ETCD_VER}-linux-amd64.tar.gz -C ~/etcd --strip-components=1
rm -f /tmp/etcd-${ETCD_VER}-linux-amd64.tar.gz
tar xzvf /data/soft/etcd-${ETCD_VER}-linux-amd64.tar.gz -C ~/etcd --strip-components=1
# 最后加入：export PATH="/root/etcd:${PATH}"
source ~/.bashrc
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执行支持 etcd 命令
[root@test ~]# etcd
{"level":"info","ts":"2024-02-03T09:30:46.682+0800","caller":"etcdmain/etcd.go:73","msg":"Running: ","args":["etcd"]}
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rsync
yum install -y rsync
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go
版本，没有选择最新的，选择次新。
wget https://golang.google.cn/dl/go1.20.13.linux-amd64.tar.gz
rm -rf /usr/local/go && tar -C /usr/local -xzf go1.20.13.linux-amd64.tar.gz
mkdir -p /data/soft/go
mkdir -p /data/soft/go/src
mkdir -p /data/soft/go/bin
export GOPATH="/data/soft/go"
export GOBIN="/data/soft/go/bin"
export PATH="/usr/local/go/bin:$GOPATH/bin:${PATH}"
source ~/.bashrc
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设置golang代理
go env -w GO111MODULE=auto
go env -w GOPROXY="https://goproxy.cn,direct"
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安装CFSSL
用于 k8s 证书生成
go install github.com/cloudflare/cfssl/cmd/...@latest
# 验证
[root@test ~]# cfssl
No command is given.
Usage:
Available commands:
sign
genkey
gencsr
ocspserve
revoke
certinfo
crl
version
gencert
ocspdump
selfsign
ocsprefresh
scan
bundle
serve
gencrl
ocspsign
info
print-defaults
Top-level flags:
[root@test ~]#
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下载kubernetes代码
mkdir $GOPATH/src/k8s.io && cd $GOPATH/src/k8s.io
git clone https://github.com/kubernetes/kubernetes.git
git checkout -b myv1.24.16 v1.24.16
# 编译
[root@test kubernetes]# make
+++ [0203 09:03:04] Building go targets for linux/amd64
k8s.io/kubernetes/cmd/kube-proxy (static)
k8s.io/kubernetes/cmd/kube-apiserver (static)
k8s.io/kubernetes/cmd/kube-controller-manager (static)
k8s.io/kubernetes/cmd/kubelet (non-static)
k8s.io/kubernetes/cmd/kubeadm (static)
k8s.io/kubernetes/cmd/kube-scheduler (static)
k8s.io/component-base/logs/kube-log-runner (static)
k8s.io/kube-aggregator (static)
k8s.io/apiextensions-apiserver (static)
k8s.io/kubernetes/cluster/gce/gci/mounter (non-static)
k8s.io/kubernetes/cmd/kubectl (static)
k8s.io/kubernetes/cmd/kubectl-convert (static)
github.com/onsi/ginkgo/v2/ginkgo (non-static)
k8s.io/kubernetes/test/e2e/e2e.test (test)
k8s.io/kubernetes/test/conformance/image/go-runner (non-static)
k8s.io/kubernetes/cmd/kubemark (static)
github.com/onsi/ginkgo/v2/ginkgo (non-static)
k8s.io/kubernetes/test/e2e_node/e2e_node.test (test)
# 生成的执行文件如下
[root@test bin]# ls
apiextensions-apiserver e2e.test go-runner kube-aggregator kube-controller-manager kubectl-convert kube-log-runner kube-proxy mounter
e2e_node.test ginkgo kubeadm kube-apiserver kubectl kubelet kubemark kube-scheduler
[root@test bin]# pwd
/root/go/src/k8s.io/kubernetes/_output/bin
# 添加环境变量
export PATH="/root/go/src/k8s.io/kubernetes/_output/bin:${PATH}"
[root@test ~]# source .bashrc
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编译启动本地单节点集群
首先通过设置环境变量DBG=1 禁止编译二进制时做任何优化和内联（必须禁止）。
同时通过设置环境变量 ENABLE_DAEMON=true 表示集群启动成功后（执行二进制文件）以守护进程的方式运行，否则过一段时间将自动退出服务。
# 此命令 sh 两个作用，一个编译，一个起单节点的集群 (第一次执行)
[root@test kubernetes]# /data/soft/go/src/k8s.io/kubernetes/hack/local-up-cluster.sh
make: 进入目录“/root/go/src/k8s.io/kubernetes”
cd /data/soft/go/src/k8s.io/kubernetes
# 第二次
ENABLE_DAEMON=true DBG=1 /data/soft/go/src/k8s.io/kubernetes/hack/local-up-cluster.sh -O
export KUBECONFIG=/var/run/kubernetes/admin.kubeconfig
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问题
遇到如下问题，一步一步如下解决
[root@test kubernetes]# kubectl describe pod nginx
Name: nginx
Namespace: default
Priority: 0
Node: <none>
Labels: app=nginx
Annotations: <none>
Status: Pending
IP:
IPs: <none>
Containers:
nginx:
Image: nginx
Port: 80/TCP
Host Port: 0/TCP
Environment: <none>
Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-6rbkk (ro)
Conditions:
Type Status
PodScheduled False
Volumes:
kube-api-access-6rbkk:
Type: Projected (a volume that contains injected data from multiple sources)
TokenExpirationSeconds: 3607
ConfigMapName: kube-root-ca.crt
ConfigMapOptional: <nil>
DownwardAPI: true
QoS Class: BestEffort
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute op=Exists for 300s
node.kubernetes.io/unreachable:NoExecute op=Exists for 300s
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Warning FailedScheduling 6m13s default-scheduler no nodes available to schedule pods
Warning FailedScheduling 65s default-scheduler no nodes available to schedule pods
[root@test kubernetes]#
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k8s没有被正常启动该如何
看日志： cat /tmp/kubelet.log
--volume-stats-agg-period duration Specifies interval for kubelet to calculate and cache the volume disk usage for all pods and volumes. To disable volume calculations, set to a negative number. (default 1m0s) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
Error: failed to run Kubelet: failed to create kubelet: get remote runtime typed version failed: rpc error: code = Unimplemented desc = unknown service runtime.v1alpha2.RuntimeService
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实际是由 # 手动修改
systemd_cgroup = true 引起
containerd config default > /etc/containerd/config.toml
sed -i 's/SystemdCgroup \= false/SystemdCgroup \= true/' /etc/containerd/config.toml
sed -i 's/snapshotter = "overlayfs"/snapshotter = "native"/' /etc/containerd/config.toml
sed -i '/\[plugins\."io\.containerd\.grpc\.v1\.cri"\.registry\.mirrors\]/a\ [plugins."io.containerd.grpc.v1.cri".registry.mirrors."docker.io"]\n endpoint = ["https://registry.aliyuncs.com" ,"https://registry-1.docker.io"]' /etc/containerd/config.toml
[root@test kubernetes]# cat /etc/containerd/config.toml | grep -n "sandbox_image"
61: sandbox_image = "registry.k8s.io/pause:3.6"
[root@test kubernetes]# vim /etc/containerd/config.toml
systemctl restart containerd
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# 不再配置下面的
[root@Master ~]# vim /etc/docker/daemon.json
{
"exec-opts": ["native.cgroupdriver=systemd"]
}
[root@Master ~]# docker info|grep Cgroup
Cgroup Driver: systemd
Cgroup Version: 1
[root@Master ~]#
[root@Master ~]# systemctl restart docker
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k8s正常启动日志
[root@test kubernetes]# ENABLE_DAEMON=true DBG=1 /data/soft/go/src/k8s.io/kubernetes/hack/local-up-cluster.sh -O
skipped the build.
API SERVER secure port is free, proceeding...
Detected host and ready to start services. Doing some housekeeping first...
Using GO_OUT /data/soft/go/src/k8s.io/kubernetes/_output/bin
Starting services now!
Starting etcd
etcd --advertise-client-urls http://127.0.0.1:2379 --data-dir /tmp/tmp.SIy3gjvswf --listen-client-urls http://127.0.0.1:2379 --log-level=warn 2> "/tmp/etcd.log" >/dev/null
Waiting for etcd to come up.
+++ [0204 15:36:47] On try 2, etcd: : {"health":"true","reason":""}
{"header":{"cluster_id":"14841639068965178418","member_id":"10276657743932975437","revision":"2","raft_term":"2"}}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'
-----
2024/02/04 15:36:47 [INFO] generate received request
2024/02/04 15:36:47 [INFO] received CSR
2024/02/04 15:36:47 [INFO] generating key: rsa-2048
2024/02/04 15:36:48 [INFO] encoded CSR
2024/02/04 15:36:48 [INFO] signed certificate with serial number 503559090451029160883764206620515450001598207346
2024/02/04 15:36:48 [INFO] generate received request
2024/02/04 15:36:48 [INFO] received CSR
2024/02/04 15:36:48 [INFO] generating key: rsa-2048
2024/02/04 15:36:49 [INFO] encoded CSR
2024/02/04 15:36:49 [INFO] signed certificate with serial number 493741312692019681510347426741341846315781053599
2024/02/04 15:36:49 [INFO] generate received request
2024/02/04 15:36:49 [INFO] received CSR
2024/02/04 15:36:49 [INFO] generating key: rsa-2048
2024/02/04 15:36:49 [INFO] encoded CSR
2024/02/04 15:36:49 [INFO] signed certificate with serial number 152285310549920910920928212323269736605793904352
2024/02/04 15:36:49 [INFO] generate received request
2024/02/04 15:36:49 [INFO] received CSR
2024/02/04 15:36:49 [INFO] generating key: rsa-2048
2024/02/04 15:36:50 [INFO] encoded CSR
2024/02/04 15:36:50 [INFO] signed certificate with serial number 125312127036331176903810097174162604078302808888
2024/02/04 15:36:50 [INFO] generate received request
2024/02/04 15:36:50 [INFO] received CSR
2024/02/04 15:36:50 [INFO] generating key: rsa-2048
2024/02/04 15:36:50 [INFO] encoded CSR
2024/02/04 15:36:50 [INFO] signed certificate with serial number 181140179293506272832484903295356268063767113896
2024/02/04 15:36:50 [INFO] generate received request
2024/02/04 15:36:50 [INFO] received CSR
2024/02/04 15:36:50 [INFO] generating key: rsa-2048
2024/02/04 15:36:50 [INFO] encoded CSR
2024/02/04 15:36:50 [INFO] signed certificate with serial number 103730507459626501912222037902428030421854814351
2024/02/04 15:36:50 [INFO] generate received request
2024/02/04 15:36:50 [INFO] received CSR
2024/02/04 15:36:50 [INFO] generating key: rsa-2048
2024/02/04 15:36:51 [INFO] encoded CSR
2024/02/04 15:36:51 [INFO] signed certificate with serial number 43096772975744811124579756033905702137004279739
2024/02/04 15:36:51 [INFO] generate received request
2024/02/04 15:36:51 [INFO] received CSR
2024/02/04 15:36:51 [INFO] generating key: rsa-2048
2024/02/04 15:36:51 [INFO] encoded CSR
2024/02/04 15:36:51 [INFO] signed certificate with serial number 592246123162051006791059223014302580834797916367
Waiting for apiserver to come up
+++ [0204 15:36:57] On try 5, apiserver: : ok
clusterrolebinding.rbac.authorization.k8s.io/kube-apiserver-kubelet-admin created
clusterrolebinding.rbac.authorization.k8s.io/kubelet-csr created
Cluster "local-up-cluster" set.
use 'kubectl --kubeconfig=/var/run/kubernetes/admin-kube-aggregator.kubeconfig' to use the aggregated API server
serviceaccount/coredns created
clusterrole.rbac.authorization.k8s.io/system:coredns created
clusterrolebinding.rbac.authorization.k8s.io/system:coredns created
configmap/coredns created
deployment.apps/coredns created
service/kube-dns created
coredns addon successfully deployed.
Checking CNI Installation at /opt/cni/bin
WARNING : The kubelet is configured to not fail even if swap is enabled; production deployments should disable swap unless testing NodeSwap feature.
2024/02/04 15:36:59 [INFO] generate received request
2024/02/04 15:36:59 [INFO] received CSR
2024/02/04 15:36:59 [INFO] generating key: rsa-2048
2024/02/04 15:37:00 [INFO] encoded CSR
2024/02/04 15:37:00 [INFO] signed certificate with serial number 274826002626477023551022370298818852502781648689
kubelet ( 12990 ) is running.
wait kubelet ready
No resources found
No resources found
No resources found
No resources found
No resources found
No resources found
No resources found
127.0.0.1 NotReady <none> 1s v1.24.16
2024/02/04 15:37:15 [INFO] generate received request
2024/02/04 15:37:15 [INFO] received CSR
2024/02/04 15:37:15 [INFO] generating key: rsa-2048
2024/02/04 15:37:16 [INFO] encoded CSR
2024/02/04 15:37:16 [INFO] signed certificate with serial number 439607026402203447424075767894402727838125873987
Create default storage class for
storageclass.storage.k8s.io/standard created
Local Kubernetes cluster is running.
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, 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
[root@test kubernetes]#
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测试
[root@test kubernetes]# export KUBECONFIG=/var/run/kubernetes/admin.kubeconfig
[root@test kubernetes]#
[root@test kubernetes]# ./cluster/kubectl.sh get nodes
NAME STATUS ROLES AGE VERSION
127.0.0.1 Ready <none> 18m v1.24.16
[root@test kubernetes]# ./cluster/kubectl.sh get services
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kubernetes ClusterIP 10.0.0.1 <none> 443/TCP 18m
[root@test kubernetes]# ./cluster/kubectl.sh get replicationcontrollers
No resources found in default namespace.
[root@test kubernetes]# ctr --namespace k8s.io image ls
REF TYPE DIGEST SIZE PLATFORMS LABELS
[root@test kubernetes]# ./cluster/kubectl.sh create -f test/fixtures/doc-yaml/user-guide/pod.yaml
pod/nginx created
[root@test kubernetes]# ./cluster/kubectl.sh get pods
NAME READY STATUS RESTARTS AGE
nginx 0/1 ContainerCreating 0 7s
# 通过此验证是否有问题
kubectl describe pod nginx
[root@test kubernetes]# ./cluster/kubectl.sh get pods
NAME READY STATUS RESTARTS AGE
nginx 1/1 Running 0 89s
[root@test kubernetes]#
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结束
linux k8s 源码编译及单集群测试 至此结束，如有疑问，欢迎评论区留言。
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