09-k8s-二进制方式搭建:

1、创建多台虚拟机,安装Linux操作系统

(1)一台或多台机器,操作系统 CentOS7.x-86_x64

(2)硬件配置:2GB 或更多 RAM,2 个 CPU 或更多 CPU,硬盘 30GB 或更多

(3)集群中所有机器之间网络互通

(4)可以访问外网,需要拉取镜像,如果服务器不能上网,需要提前下载镜像并导入节点

(5)禁止 swap 分区

规划:

角色ip组件
master192.168.10.101kube- -apiserver, kube -controller-manager, kube-scheduler, etcd
node1192.168.10.105kubelet,kube-proxy, docker,etcd
node2192.168.10.106kubelet,kube-proxy, docker,etcd

2、操作系统初始化

通kubeadm方式安装基本一致

3、为etcd和api server自签证书

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4、部署etcd集群

Etcd 是一个分布式键值存储系统,Kubernetes 使用 Etcd 进行数据存储,所以先准备 一个 Etcd 数据库,为解决 Etcd 单点故障,应采用集群方式部署,这里使用 3 台组建集群,可容忍 1 台机器故障。

4.1准备 cfssl 证书生成工具

cfssl 是一个开源的证书管理工具,使用 json 文件生成证书,相比 openssl 更方便使用。 找任意一台服务器操作,这里用 Master 节点。

注意:wget的时候如果不对,一定要删除旧的,重新下载。只要一次性下载成功的。在这里下载成功的防止到了同级别目录jar下。遇见段错误提示。

wget https://pkg.cfssl.org/R1.2/cfssl_linux-amd64

wget https://pkg.cfssl.org/R1.2/cfssljson_linux-amd64

wget https://pkg.cfssl.org/R1.2/cfssl-certinfo_linux-amd64

chmod +x cfssl_linux-amd64 cfssljson_linux-amd64 cfssl-certinfo_linux-amd64

cp cfssl_linux-amd64 /usr/local/bin/cfssl

cp cfssljson_linux-amd64 /usr/local/bin/cfssljson

cp cfssl-certinfo_linux-amd64 /usr/bin/cfssl-certinfo

生成 Etcd 证书

(1)自签证书颁发机构(CA)

创建工作目录:

mkdir -p ~/TLS/{etcd,k8s} 

cd TLS/etcd

自签CA:

vim ca-config.json

{
  "signing": {
    "default": {
      "expiry": "87600h"
    },
    "profiles": {
      "www": {
         "expiry": "87600h",
         "usages": [
            "signing",
            "key encipherment",
            "server auth",
            "client auth"
        ]
      }
    }
  }
}

vim   ca-csr.json
{
    "CN": "etcd CA",
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "L": "Beijing",
            "ST": "Beijing"
        }
    ]
}

生成证书:

cfssl gencert -initca ca-csr.json | cfssljson -bare ca -
ls *pem

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4.2使用自签 CA 签发 Etcd

HTTPS 证书

创建证书申请文件:

{
        "CN": "etcd",
        "hosts": [
                "192.168.10.101",
                "192.168.10.105",
                "192.168.10.106"
                ],
        "key": {
                "algo": "rsa",
                "size": 2048
        },
        "names": [
                {
                         "C": "CN",
                        "L": "BeiJing",
                        "ST": "BeiJing"
                }
        ]
}

生成证书:

cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=www server-csr.json | cfssljson -bare server

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从 Github 下载二进制文件 (用的v3.4.9/etcd-v3.4.9-linux-amd64.tar.gz)

下载地址:https://github.com/etcd-io/etcd/releases

4.3 部署 Etcd 集群

以下在节点 1 上操作,为简化操作,待会将节点 1 生成的所有文件拷贝到节点 2 和节点 3.

(1)创建工作目录并解压二进制包

mkdir –p /opt/etcd/{bin,cfg,ssl} 
tar zxvf etcd-v3.4.9-linux-amd64.tar.gz 
mv etcd-v3.4.9-linux-amd64/{etcd,etcdctl} /opt/etcd/bin/

(2)创建 etcd 配置文件

vim /opt/etcd/cfg/etcd.conf
#[Member]
ETCD_NAME="etcd-1"#节点名称,集群中唯一
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"#数据目录
ETCD_LISTEN_PEER_URLS="https://192.168.10.101:2380"#本机ip,集群通信监听地址
ETCD_LISTEN_CLIENT_URLS="https://192.168.10.101:2379"#客户端访问监听地址
#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="https://192.168.10.101:2380"#集群通告地址
ETCD_ADVERTISE_CLIENT_URLS="https://192.168.10.101:2379"#客户端通告地址
ETCD_INITIAL_CLUSTER="etcd-1=https://192.168.10.101:2380,etcd-2=https://192.168.10.105:2380,etcd-3=https://192.168.10.106:2380"#集群节点地址
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"#集群 Token
ETCD_INITIAL_CLUSTER_STATE="new"#加入集群的当前状态,new 是新集群,existing 表示加入 已有集群

(3)systemd 管理 etcd

vim /usr/lib/systemd/system/etcd.service

[Unit]
Description=Etcd Server
After=network.target
After=network-online.target
Wants=network-online.target
[Service]
Type=notify
EnvironmentFile=/opt/etcd/cfg/etcd.conf
ExecStart=/opt/etcd/bin/etcd \
--cert-file=/opt/etcd/ssl/server.pem \
--key-file=/opt/etcd/ssl/server-key.pem \
--peer-cert-file=/opt/etcd/ssl/server.pem \
--peer-key-file=/opt/etcd/ssl/server-key.pem \
--trusted-ca-file=/opt/etcd/ssl/ca.pem \
--peer-trusted-ca-file=/opt/etcd/ssl/ca.pem
--logger=zap
Restart=on-failure
LimitNOFILE=65536
[Install]
WantedBy=multi-user.target

(4)拷贝刚才生成的证书

把刚才生成的证书拷贝到配置文件中的路径:

cp ~/TLS/etcd/ca*pem ~/TLS/etcd/server*pem /opt/etcd/ssl/

(5)启动并设置开机启动

systemctl daemon-reload
systemctl start etcd
systemctl enable etcd

systemctl stop etcd
 

(6)将上面节点 1 所有生成的文件拷贝到节点 2 和节点 3

scp -r /opt/etcd/ root@192.168.10.105:/opt/ 
scp /usr/lib/systemd/system/etcd.service root@192.168.10.105:/usr/lib/systemd/system/ 
scp -r /opt/etcd/ root@192.168.10.106:/opt/ 
scp /usr/lib/systemd/system/etcd.service root@192.168.10.106:/usr/lib/systemd/system/

然后在节点 2 和节点 3 分别修改 etcd.conf 配置文件中的节点名称和当前服务器 IP:

ETCD_NAME="etcd-1" # 修改此处,节点 2 改为 etcd-2,节点 3 改为 etcd-3
ETCD_LISTEN_PEER_URLS="https://192.168.31.71:2380" # 修改此处为当前服务器 IP ETCD_LISTEN_CLIENT_URLS="https://192.168.31.71:2379" # 修改此处为当前服务器 IP ETCD_INITIAL_ADVERTISE_PEER_URLS="https://192.168.31.71:2380" # 修改此处为当前 服务器 IP ETCD_ADVERTISE_CLIENT_URLS="https://192.168.31.71:2379" # 修改此处为当前服务器 IP

最后启动 etcd 并设置开机启动,同上。

(7)查看集群状态

ETCDCTL_API=3 /opt/etcd/bin/etcdctl --cacert=/opt/etcd/ssl/ca.pem --cert=/opt/etcd/ssl/server.pem --key=/opt/etcd/ssl/server-key.pem --endpoints=“https://192.168.10.101:2379,https://192.168.10.105:2379,https://192.168.10.106:2379” endpoint health

/opt/etcd/bin/etcdctl --cacert=/opt/etcd/ssl/ca.pem --cert=/opt/etcd/ssl/server.pem --key=/opt/etcd/ssl/server-key.pem --endpoints=“https://192.168.10.101:2379,https://192.168.10.105:2379,https://192.168.10.106:2379” endpoint status --write-out=table

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4.4部署Docker组件

下载地址:https://download.docker.com/linux/static/stable/x86_64/docker-19.03.9.tgz

以下在所有节点操作。这里采用二进制安装,用 yum 安装也一样。

(1)解压二进制包

tar zxvf docker-19.03.9.tgz 
mv docker/* /usr/bin

(2) systemd 管理 docker

vim /usr/lib/systemd/system/docker.service

[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com After=network-online.target firewalld.service
Wants=network-online.target
[Service]
Type=notify
ExecStart=/usr/bin/dockerd
ExecReload=/bin/kill -s HUP $MAINPID
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
TimeoutStartSec=0
Delegate=yes
KillMode=process
Restart=on-failure
StartLimitBurst=3
StartLimitInterval=60s
[Install]
WantedBy=multi-user.target

(3)创建配置文件

mkdir /etc/docker 
vim  /etc/docker/daemon.json 
{
	"registry-mirrors": ["https://b9pmyelo.mirror.aliyuncs.com"]
}

registry-mirrors 阿里云镜像加速器

(4)启动并设置开机启动

systemctl daemon-reload 
systemctl start docker 
systemctl enable docker

(5)测试安装是否成功:docker -v

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5、部署master组件

kube-apiserver, kube-controller-manager, kube-scheduler, etcd

5.1生成kube-apiserver证书(ERROR)

1、自签证书颁发机构(CA)

cd TLS/k8s

vim ca-config.json
{
  "signing": {
    "default": {
      "expiry": "87600h"
    },
    "profiles": {
      "kubernetes": {
         "expiry": "87600h",
         "usages": [
            "signing",
            "key encipherment",
            "server auth",
            "client auth"
        ]
      }
    }
  }
}

vim  ca-csr.json
{
    "CN": "kubernetes",
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "L": "Beijing",
            "ST": "Beijing",
            "O": "k8s",
            "OU": "System"
        }
    ]
}

2、生成证书

cfssl gencert -initca ca-csr.json | cfssljson -bare ca -

ls *pem

3、使用自签 CA 签发 kube-apiserver HTTPS 证书 创建证书申请文件:

vim server-csr.json

{
    "CN": "kubernetes",
    "hosts": [
      "10.0.0.1",
      "127.0.0.1",
      "192.168.10.101",
      "192.168.10.105",
      "192.168.10.106",
      "kubernetes",
      "kubernetes.default",
      "kubernetes.default.svc",
      "kubernetes.default.svc.cluster",
      "kubernetes.default.svc.cluster.local"
    ],
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "L": "BeiJing",
            "ST": "BeiJing",
            "O": "k8s",
            "OU": "System"
        }
    ]
}

4、生成证书

cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes server-csr.json | cfssljson -bare server


ls server*pem

5、下载kubernetes-server的文件

https://storage.googleapis.com/kubernetes-release/release/v1.18.13/kubernetes-server-linux-amd64.tar.gz

或者

https://github.com/kubernetes/kubernetes/tree/master/CHANGELOG

6、解压

mkdir -p /opt/kubernetes/{bin,cfg,ssl,logs}
tar zxvf kubernetes-server-linux-amd64.tar.gz
cd kubernetes/server/bin
cp kube-apiserver kube-scheduler kube-controller-manager /opt/kubernetes/bin
cp kubectl /usr/bin/

7、部署kube-apiserver

vim /opt/kubernetes/cfg/kube-apiserver.conf
KUBE_APISERVER_OPTS="--logtostderr=false \\
--v=2 \\
--log-dir=/opt/kubernetes/logs \\
--etcd-servers=https://192.168.10.101:2379,https://192.168.10.105:2379,https://192.168.10.106:2379 \\
--bind-address=192.168.10.101 \\
--secure-port=6443 \\
--advertise-address=192.168.10.101 \\
--allow-privileged=true \\
--service-cluster-ip-range=10.0.0.0/24 \\
--enable-admission-plugins=NamespaceLifecycle,LimitRanger,ServiceAccount,ResourceQuota,NodeRestriction \\
--authorization-mode=RBAC,Node \\
--enable-bootstrap-token-auth=true \\
--token-auth-file=/opt/kubernetes/cfg/token.csv \\
--service-node-port-range=30000-32767 \\
--kubelet-client-certificate=/opt/kubernetes/ssl/server.pem \\
--kubelet-client-key=/opt/kubernetes/ssl/server-key.pem \\
--tls-cert-file=/opt/kubernetes/ssl/server.pem  \\
--tls-private-key-file=/opt/kubernetes/ssl/server-key.pem \\
--client-ca-file=/opt/kubernetes/ssl/ca.pem \\
--service-account-key-file=/opt/kubernetes/ssl/ca-key.pem \\
--etcd-cafile=/opt/etcd/ssl/ca.pem \\
--etcd-certfile=/opt/etcd/ssl/server.pem \\
--etcd-keyfile=/opt/etcd/ssl/server-key.pem \\
--audit-log-maxage=30 \\
--audit-log-maxbackup=3 \\
--audit-log-maxsize=100 \\
--audit-log-path=/opt/kubernetes/logs/k8s-audit.log"
##############
–logtostderr:启用日志
—v:日志等级
–log-dir:日志目录
–etcd-servers:etcd 集群地址
–bind-address:监听地址
–secure-port:https 安全端口
–advertise-address:集群通告地址
–allow-privileged:启用授权
–service-cluster-ip-range:Service 虚拟 IP 地址段
–enable-admission-plugins:准入控制模块
–authorization-mode:认证授权,启用 RBAC 授权和节点自管理
–enable-bootstrap-token-auth:启用 TLS bootstrap 机制
–token-auth-file:bootstrap token 文件
–service-node-port-range:Service nodeport 类型默认分配端口范围
–kubelet-client-xxx:apiserver 访问 kubelet 客户端证书
–tls-xxx-file:apiserver https 证书
–etcd-xxxfile:连接 Etcd 集群证书
–audit-log-xxx:审计日志

7、把刚才生成的证书拷贝到配置文件中的路径:

cp ~/TLS/k8s/ca*pem ~/TLS/k8s/server*pem /opt/kubernetes/ssl/

8、创建上述配置文件中 token 文件

vim /opt/kubernetes/cfg/token.csv
c47ffb939f5ca36231d9e3121a252940,kubelet-bootstrap,10001,"system:node-bootstrapper"
#格式:token,用户名,UID,用户组 token 也可自行生成替换:
head -c 16 /dev/urandom | od -An -t x | tr -d ' '

9、systemd 管理 apiserver

vim /usr/lib/systemd/system/kube-apiserver.service 
[Unit]
Description=Kubernetes API Server
Documentation=https://github.com/kubernetes/kubernetes
[Service]
EnvironmentFile=/opt/kubernetes/cfg/kube-apiserver.conf
ExecStart=/opt/kubernetes/bin/kube-apiserver \$KUBE_APISERVER_OPTS
Restart=on-failure
[Install]
WantedBy=multi-user.target

10、启动并设置开机启动

systemctl daemon-reload
systemctl start kube-apiserver
systemctl enable kube-apiserver
systemctl status kube-apiserver

11、授权 kubelet-bootstrap 用户允许请求证书

kubectl create clusterrolebinding kubelet-bootstrap \
--clusterrole=system:node-bootstrapper \
--user=kubelet-bootstrap
5.2部署 kube-controller-manager

1、创建管理配置文件

vim /opt/kubernetes/cfg/kube-controller-manager.conf
KUBE_CONTROLLER_MANAGER_OPTS="--logtostderr=false \\
--v=2 \\
--log-dir=/opt/kubernetes/logs \\
--leader-elect=true \\
--master=127.0.0.1:8080 \\
--bind-address=127.0.0.1 \\
--allocate-node-cidrs=true \\
--cluster-cidr=10.244.0.0/16 \\
--service-cluster-ip-range=10.0.0.0/24 \\
--cluster-signing-cert-file=/opt/kubernetes/ssl/ca.pem \\
--cluster-signing-key-file=/opt/kubernetes/ssl/ca-key.pem  \\
--root-ca-file=/opt/kubernetes/ssl/ca.pem \\
--service-account-private-key-file=/opt/kubernetes/ssl/ca-key.pem \\
--experimental-cluster-signing-duration=87600h0m0s"
####################################################
–master:通过本地非安全本地端口 8080 连接 apiserver。
–leader-elect:当该组件启动多个时,自动选举(HA)
–cluster-signing-cert-file/–cluster-signing-key-file:自动为 kubelet 颁发证书的 CA,与 apiserver 保持一致

2、systemd 管理 controller-manager并设置开机启动

vim /usr/lib/systemd/system/kube-controller-manager.service 
[Unit]
Description=Kubernetes Controller Manager
Documentation=https://github.com/kubernetes/kubernetes
[Service]
EnvironmentFile=/opt/kubernetes/cfg/kube-controller-manager.conf
ExecStart=/opt/kubernetes/bin/kube-controller-manager \$KUBE_CONTROLLER_MANAGER_OPTS
Restart=on-failure
[Install]
WantedBy=multi-user.target
#######设置开机启动
systemctl daemon-reload
systemctl start kube-controller-manager
systemctl enable kube-controller-manager
systemctl status kube-controller-manager
5.3部署 kube-scheduler

1、创建配置文件

vim  /opt/kubernetes/cfg/kube-scheduler.conf
KUBE_SCHEDULER_OPTS="--logtostderr=false \
--v=2 \
--log-dir=/opt/kubernetes/logs \
--leader-elect \
--master=127.0.0.1:8080 \
--bind-address=127.0.0.1"
#############################
–master:通过本地非安全本地端口 8080 连接 apiserver。
–leader-elect:当该组件启动多个时,自动选举(HA)

2、systemd 管理 kube-scheduler并设置开机启动

vim /usr/lib/systemd/system/kube-scheduler.service 
[Unit]
Description=Kubernetes Scheduler
Documentation=https://github.com/kubernetes/kubernetes
[Service]
EnvironmentFile=/opt/kubernetes/cfg/kube-scheduler.conf
ExecStart=/opt/kubernetes/bin/kube-scheduler \$KUBE_SCHEDULER_OPTS
Restart=on-failure
[Install]
WantedBy=multi-user.target
####设置开机启动
systemctl daemon-reload
systemctl start kube-scheduler
systemctl enable kube-scheduler
systemctl status kube-scheduler

查看集群状态(暂时kube-apiserver启动失败,状态不对。初步搭建实在没搞透彻。后续继续测试二进制搭建)

所有组件都已经启动成功,通过 kubectl 工具查看当前集群组件状态:

kubectl get cs

6、部署node组件

kubelet, kube-proxy, docker, etcdo

mkdir -p /opt/kubernetes/{bin,cfg,ssl,logs}
tar zxvf kubernetes-server-linux-amd64.tar.gz
cd kubernetes/server/bin
cp kubelet kube-proxy /opt/kubernetes/bin
cp kubectl /usr/bin/
6.1、部署kubelete
vim  /opt/kubernetes/cfg/kubelet.conf
KUBELET_OPTS="--logtostderr=false \\
--v=2 \\
--log-dir=/opt/kubernetes/logs \\
--hostname-override=hadoop101 \\
--network-plugin=cni \\
--kubeconfig=/opt/kubernetes/cfg/kubelet.kubeconfig \\
--bootstrap-kubeconfig=/opt/kubernetes/cfg/bootstrap.kubeconfig \\
--config=/opt/kubernetes/cfg/kubelet-config.yml \\
--cert-dir=/opt/kubernetes/ssl \\
--pod-infra-container-image=lizhenliang/pause-amd64:3.0"
#
–hostname-override:显示名称,集群中唯一
–network-plugin:启用CNI
–kubeconfig:空路径,会自动生成,后面用于连接apiserver
–bootstrap-kubeconfig:首次启动向apiserver申请证书
–config:配置参数文件
–cert-dir:kubelet证书生成目录
–pod-infra-container-image:管理Pod网络容器的镜像
vim /opt/kubernetes/cfg/kubelet-config.yml
kind: KubeletConfiguration
apiVersion: kubelet.config.k8s.io/v1beta1
address: 0.0.0.0
port: 10250
readOnlyPort: 10255
cgroupDriver: cgroupfs
clusterDNS:
- 10.0.0.2
clusterDomain: cluster.local 
failSwapOn: false
authentication:
  anonymous:
    enabled: false
  webhook:
    cacheTTL: 2m0s
    enabled: true
  x509:
    clientCAFile: /opt/kubernetes/ssl/ca.pem 
authorization:
  mode: Webhook
  webhook:
    cacheAuthorizedTTL: 5m0s
    cacheUnauthorizedTTL: 30s
evictionHard:
  imagefs.available: 15%
  memory.available: 100Mi
  nodefs.available: 10%
  nodefs.inodesFree: 5%
maxOpenFiles: 1000000
maxPods: 110

2、将master一些配置文件拷贝到node节点上

scp -r /opt/kubernetes/ssl root@192.168.181.134:/opt/kube

3、生成bootstrap.kubeconfig文件

KUBE_APISERVER="https://192.168.1.71:6443" # apiserver IP:PORT
TOKEN="c47ffb939f5ca36231d9e3121a252940" # 与token.csv里保持一致
kubectl config set-cluster kubernetes \
  --certificate-authority=/opt/kubernetes/ssl/ca.pem \
  --embed-certs=true \
  --server=${KUBE_APISERVER} \
  --kubeconfig=bootstrap.kubeconfig
kubectl config set-credentials "kubelet-bootstrap" \
  --token=${TOKEN} \
  --kubeconfig=bootstrap.kubeconfig
kubectl config set-context default \
  --cluster=kubernetes \
  --user="kubelet-bootstrap" \
  --kubeconfig=bootstrap.kubeconfig
kubectl config use-context default --kubeconfig=bootstrap.kubeconfig
##################
mv bootstrap.kubeconfig /opt/kubernetes/cfg

4、systemd管理kubelet并设置开启自启动

vim /usr/lib/systemd/system/kubelet.service
[Unit]
Description=Kubernetes Kubelet
After=docker.service
[Service]
EnvironmentFile=/opt/kubernetes/cfg/kubelet.conf
ExecStart=/opt/kubernetes/bin/kubelet \$KUBELET_OPTS
Restart=on-failure
LimitNOFILE=65536
[Install]
WantedBy=multi-user.target
#开机启动
systemctl daemon-reload
systemctl start kubelet
systemctl enable kubelet

5、批准kubelet证书申请并加入集群(Master操作)

# 查看kubelet证书请求
kubectl get csr
NAME                                                   AGE    SIGNERNAME                                    REQUESTOR           CONDITION
node-csr-uCEGPOIiDdlLODKts8J658HrFq9CZ--K6M4G7bjhk8A   6m3s   kubernetes.io/kube-apiserver-client-kubelet   kubelet-bootstrap   Pending

# 批准申请
kubectl certificate approve node-csr-uCEGPOIiDdlLODKts8J658HrFq9CZ--K6M4G7bjhk8A

# 查看节点
kubectl get node
注:由于网络插件还没有部署,节点会没有准备就绪 NotReady
6.2、部署kube-proxy

1、生成kube-proxy.conf配置文件

vim /opt/kubernetes/cfg/kube-proxy.conf
KUBE_PROXY_OPTS="--logtostderr=false \\
--v=2 \\
--log-dir=/opt/kubernetes/logs \\
--config=/opt/kubernetes/cfg/kube-proxy-config.yml"
vim /opt/kubernetes/cfg/kube-proxy-config.yml
kind: KubeProxyConfiguration
apiVersion: kubeproxy.config.k8s.io/v1alpha1
bindAddress: 0.0.0.0
metricsBindAddress: 0.0.0.0:10249
clientConnection:
  kubeconfig: /opt/kubernetes/cfg/kube-proxy.kubeconfig
hostnameOverride: hadoop101
clusterCIDR: 10.0.0.0/24

2、生成kube-proxy.kubeconfig文件(master生成在传到node)

cd TLS/k8s
vim kube-proxy-csr.json
{
  "CN": "system:kube-proxy",
  "hosts": [],
  "key": {
    "algo": "rsa",
    "size": 2048
  },
  "names": [
    {
      "C": "CN",
      "L": "BeiJing",
      "ST": "BeiJing",
      "O": "k8s",
      "OU": "System"
    }
  ]
}

3、生成证书

cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes kube-proxy-csr.json | cfssljson -bare kube-proxy

scp -r /root/TLS/k8s root@192.168.10.101:/opt/TLS/

4、生成kubeconfig文件

KUBE_APISERVER="https://192.168.10.101:6443"
kubectl config set-cluster kubernetes \
  --certificate-authority=/opt/kubernetes/ssl/ca.pem \
  --embed-certs=true \
  --server=${KUBE_APISERVER} \
  --kubeconfig=kube-proxy.kubeconfig
kubectl config set-credentials kube-proxy \
  --client-certificate=./kube-proxy.pem \
  --client-key=./kube-proxy-key.pem \
  --embed-certs=true \
  --kubeconfig=kube-proxy.kubeconfig
kubectl config set-context default \
  --cluster=kubernetes \
  --user=kube-proxy \
  --kubeconfig=kube-proxy.kubeconfig
kubectl config use-context default --kubeconfig=kube-proxy.kubeconfig
######################################
cp kube-proxy.kubeconfig /opt/kubernetes/cfg/

5、systemd管理kube-proxy并启动

vim  /usr/lib/systemd/system/kube-proxy.service
[Unit]
Description=Kubernetes Proxy
After=network.target
[Service]
EnvironmentFile=/opt/kubernetes/cfg/kube-proxy.conf
ExecStart=/opt/kubernetes/bin/kube-proxy \$KUBE_PROXY_OPTS
Restart=on-failure
LimitNOFILE=65536
[Install]
WantedBy=multi-user.target
#####
systemctl daemon-reload
systemctl start kube-proxy
systemctl enable kube-proxy
systemctl status kube-proxy

7、部署集群网络

1、部署CNI网络

下载地址:https://github.com/containernetworking/plugins/releases/download/v0.8.6/cni-plugins-linux-amd64-v0.8.6.tgz

node节点操作

mkdir /opt/cni/bin
tar zxvf cni-plugins-linux-amd64-v0.8.6.tgz -C /opt/cni/bin

master节点操作

需上传kube-flannel.yml

wget https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml 

sed -i -r "s#quay.io/coreos/flannel:.*-amd64#lizhenliang/flannel:v0.12.0- amd64#g" kube-flannel.yml
kubectl apply -f kube-flannel.yml 
kubectl get pods -n kube-system 
kubectl get node

8、两种方式搭建集群的对比

学习路径:https://space.bilibili.com/302417610/,如有侵权,请联系q进行删除:3623472230

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