您好，登录后才能下订单哦！
密码登录
登录注册
点击 登录注册 即表示同意《亿速云用户服务条款》
Kubernetes集群部署的方式有哪些？针对这个问题，今天小编总结这篇有关Kubernetes集群部署的文章，文章重点讲解了Kubernetes二进制的部署等部署方式。
Minikube是一个工具，可以在本地快速运行一个单点的Kubernetes，仅用于尝试Kubernetes或日常开发的用户使用。
部署地址: https://kubernetes.io/docs/setup/minikube/
Kubeadm也是一个工具，提供kubeadm init和kubeadm join,用于快速部署Kubernetes集群。
部署地址:https://kubernetes.io/docs/reference/setup-tools/kubeadm/kubeadm/
推荐，从官方下载发行版的二进制包，手动部署每个组件，组成Kubernetes集群。
下载地址:https://github.com/kubernetes/kubernetes/releases
| 组件 | 使用的证书 |
|---|---|
| etcd | ca.pem, server.pem, server-key.pem |
| flannel | ca.pem，server.pem, server-key.pem |
| kube- apiserver | ca.pem, server.pem, server-key.pem |
| kubelet | ca.pem, ca-key.pem |
| kube-proxy | ca.pem, kube-proxy.pem, kube-proxy-key.pem |
| kubectl | ca.pem, admin.pem, admin-key.pem |
二进制包下载地址
https://github.com/etcd-io/etcd/releases
1、自签ETCD证书
2、ETCD部署
3、Node安装docker
4、Flannel部署（先写入子网到etcd）
1、自签APIServer证书
2、部署APIServer组件（token，csv）
3、部署controller-manager（指定apiserver证书）和scheduler组件
1、生成kubeconfig（bootstrap，kubeconfig和kube-proxy.kubeconfig）
2、部署kubelet组件
3、部署kube-proxy组件
1、kubectl get csr && kubectl certificate approve 允许颁发证书，加入群集
2、添加一个node节点
3、查看kubectl get node 节点
Nginx1:192.168.35.104/24
Nginx2:192.168.35.105/24
master1:192.168.35.100/24
master2:192.168.35.103/24
node1：192.168.35.101/24
node2：192.168.35.102/24
[root@localhost ~]# mkdir k8s
[root@localhost ~]# cd k8s/
[root@localhost k8s]# ls ##从宿主机拖进来
etcd-cert.sh etcd.sh
[root@localhost k8s]# mkdir etcd-cert
[root@localhost k8s]# mv etcd-cert.sh etcd-certvim etcd.sh
#!/bin/bash
# example: ./etcd.sh etcd01 192.168.1.10 etcd02=https://192.168.1.11:2380,etcd03=https://192.168.1.12:2380
ETCD_NAME=$1
ETCD_IP=$2
ETCD_CLUSTER=$3
WORK_DIR=/opt/etcd
cat <<EOF >$WORK_DIR/cfg/etcd
#[Member]
ETCD_NAME="${ETCD_NAME}"
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
ETCD_LISTEN_PEER_URLS="https://${ETCD_IP}:2380"
ETCD_LISTEN_CLIENT_URLS="https://${ETCD_IP}:2379"
#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="https://${ETCD_IP}:2380"
ETCD_ADVERTISE_CLIENT_URLS="https://${ETCD_IP}:2379"
ETCD_INITIAL_CLUSTER="etcd01=https://${ETCD_IP}:2380,${ETCD_CLUSTER}"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
ETCD_INITIAL_CLUSTER_STATE="new"
EOF
cat <<EOF >/usr/lib/systemd/system/etcd.service
[Unit]
Description=Etcd Server
After=network.target
After=network-online.target
Wants=network-online.target
[Service]
Type=notify
EnvironmentFile=${WORK_DIR}/cfg/etcd
ExecStart=${WORK_DIR}/bin/etcd \
--name=\${ETCD_NAME} \
--data-dir=\${ETCD_DATA_DIR} \
--listen-peer-urls=\${ETCD_LISTEN_PEER_URLS} \
--listen-client-urls=\${ETCD_LISTEN_CLIENT_URLS},http://127.0.0.1:2379 \
--advertise-client-urls=\${ETCD_ADVERTISE_CLIENT_URLS} \
--initial-advertise-peer-urls=\${ETCD_INITIAL_ADVERTISE_PEER_URLS} \
--initial-cluster=\${ETCD_INITIAL_CLUSTER} \
--initial-cluster-token=\${ETCD_INITIAL_CLUSTER_TOKEN} \
--initial-cluster-state=new \
--cert-file=${WORK_DIR}/ssl/server.pem \
--key-file=${WORK_DIR}/ssl/server-key.pem \
--peer-cert-file=${WORK_DIR}/ssl/server.pem \
--peer-key-file=${WORK_DIR}/ssl/server-key.pem \
--trusted-ca-file=${WORK_DIR}/ssl/ca.pem \
--peer-trusted-ca-file=${WORK_DIR}/ssl/ca.pem
Restart=on-failure
LimitNOFILE=65536
[Install]
WantedBy=multi-user.target
EOF
systemctl daemon-reload
systemctl enable etcd
systemctl restart etcdvim etcd-cert.sh
cat > ca-config.json <<EOF
{
"signing": {
"default": {
"expiry": "87600h"
},
"profiles": {
"www": {
"expiry": "87600h",
"usages": [
"signing",
"key encipherment",
"server auth",
"client auth"
]
}
}
}
}
EOF
cat > ca-csr.json <<EOF
{
"CN": "etcd CA",
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"L": "Beijing",
"ST": "Beijing"
}
]
}
EOF
cfssl gencert -initca ca-csr.json | cfssljson -bare ca -
#-----------------------
cat > server-csr.json <<EOF
{
"CN": "etcd",
"hosts": [
"10.206.240.188",
"10.206.240.189",
"10.206.240.111"
],
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"L": "BeiJing",
"ST": "BeiJing"
}
]
}
EOF
cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=www server-csr.json | cfssljson -bare server
[root@localhost k8s]# vim cfssl.sh
curl -L https://pkg.cfssl.org/R1.2/cfssl_linux-amd64 -o /usr/local/bin/cfssl
curl -L https://pkg.cfssl.org/R1.2/cfssljson_linux-amd64 -o /usr/local/bin/cfssljson
curl -L https://pkg.cfssl.org/R1.2/cfssl-certinfo_linux-amd64 -o /usr/local/bin/cfssl-certinfo
chmod +x /usr/local/bin/cfssl /usr/local/bin/cfssljson /usr/local/bin/cfssl-certinfo
[root@localhost k8s]# bash cfssl.sh //下载cfssl官方包
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 9.8M 100 9.8M 0 0 77052 0 0:02:14 0:02:14 --:--:-- 94447
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 2224k 100 2224k 0 0 66701 0 0:00:34 0:00:34 --:--:-- 71949
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 6440k 100 6440k 0 0 74368 0 0:01:28 0:01:28 --:--:-- 93942
[root@localhost k8s]# ls /usr/local/bin/
cfssl cfssl-certinfo cfssljson
##cfssl 生成证书工具、cfssljson通过传入json文件生成证书、cfssl-certinfo查看证书信息
[root@localhost k8s]# cd etcd-cert/
cat > ca-config.json <<EOF
{
"signing": {
"default": {
"expiry": "87600h"
},
"profiles": {
"www": {
"expiry": "87600h",
"usages": [
"signing",
"key encipherment",
"server auth",
"client auth"
]
}
}
}
}
EOF cat > ca-csr.json <<EOF
{
"CN": "etcd CA",
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"L": "Beijing",
"ST": "Beijing"
}
]
}
EOFcfssl gencert -initca ca-csr.json | cfssljson -bare ca -
2020/01/15 18:15:15 [INFO] generating a new CA key and certificate from CSR
2020/01/15 18:15:15 [INFO] generate received request
2020/01/15 18:15:15 [INFO] received CSR
2020/01/15 18:15:15 [INFO] generating key: rsa-2048
2020/01/15 18:15:15 [INFO] encoded CSR
2020/01/15 18:15:15 [INFO] signed certificate with serial number 661808851940283859099066838380794010566731982441cat > server-csr.json <<EOF
{
"CN": "etcd",
"hosts": [
"192.168.35.100",
"192.168.35.101",
"192.168.35.102"
],
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"L": "BeiJing",
"ST": "BeiJing"
}
]
}
EOFcfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=www server-csr.json | cfssljson -bare server
www server-csr.json | cfssljson -bare server
2020/01/15 18:24:09 [INFO] generate received request
2020/01/15 18:24:09 [INFO] received CSR
2020/01/15 18:24:09 [INFO] generating key: rsa-2048
2020/01/15 18:24:09 [INFO] encoded CSR
2020/01/15 18:24:09 [INFO] signed certificate with serial number 613252568370198035643630635602034323043189506463
2020/01/15 18:24:09 [WARNING] This certificate lacks a "hosts" field. This makes it unsuitable for
websites. For more information see the Baseline Requirements for the Issuance and Management
of Publicly-Trusted Certificates, v.1.1.6, from the CA/Browser Forum (https://cabforum.org);
specifically, section 10.2.3 ("Information Requirements").[root@localhost etcd-cert]# cd /root/k8s/
[root@localhost k8s]# ls ##直接拉取到目录下
cfssl.sh etcd.sh flannel-v0.10.0-linux-amd64.tar.gz
etcd-cert etcd-v3.3.10-linux-amd64.tar.gz kubernetes-server-linux-amd64.tar.gz[root@localhost k8s]# tar xf etcd-v3.3.10-linux-amd64.tar.gz
[root@localhost k8s]# ls etcd-v3.3.10-linux-amd64
Documentation etcd etcdctl README-etcdctl.md README.md READMEv2-etcdctl.md
[root@localhost k8s]# mkdir /opt/etcd/{cfg,bin,ssl} -p ##配置文件，命令文件，证书
[root@localhost k8s]# mv etcd-v3.3.10-linux-amd64/etcd etcd-v3.3.10-linux-amd64/etcdctl /opt/etcd/bin/##证书拷贝
[root@localhost k8s]# cp etcd-cert/*.pem /opt/etcd/ssl/
##进入卡住状态等待其他节点加入
[root@localhost k8s]# bash etcd.sh etcd01 192.168.35.100 etcd02=https://192.168.35.101:2380,etcd03=https://192.168.35.102:2380[root@localhost etcd-cert]# ps -ef | grep etcd
root 81594 1 0 12:25 ? 00:00:18 /opt/etcd/bin/etcd --name=etcd01 --data-dir=/var/lib/etcd/default.etcd --listen-peer-urls=https://192.168.35.100:2380 --listen-client-urls=https://192.168.35.100:2379,http://127.0.0.1:2379 --advertise-client-urls=https://192.168.35.100:2379 --initial-advertise-peer-urls=https://192.168.35.100:2380 --initial-cluster=etcd01=https://192.168.35.100:2380,etcd02=https://192.168.35.101:2380,etcd03=https://192.168.35.102:2380 --initial-cluster-token=etcd-cluster --initial-cluster-state=new --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
root 82044 79438 0 13:12 pts/0 00:00:00 grep --color=auto etcd
systemctl stop firewalld.service
setenforce 0[root@localhost k8s]# scp -r /opt/etcd/ root@192.168.35.101:/opt/
[root@localhost k8s]# scp -r /opt/etcd/ root@192.168.35.102:/opt[root@localhost k8s]# scp /usr/lib/systemd/system/etcd.service root@192.168.35.101:/usr/lib/systemd/system/
[root@localhost k8s]# scp /usr/lib/systemd/system/etcd.service root@192.168.35.102:/usr/lib/systemd/system/[root@localhost ~]# vim /opt/etcd/cfg/etcd
#[Member]
ETCD_NAME="etcd02"
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
ETCD_LISTEN_PEER_URLS="https://192.168.35.101:2380"
ETCD_LISTEN_CLIENT_URLS="https://192.168.35.101:2379"
#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="https://192.168.35.101:2380"
ETCD_ADVERTISE_CLIENT_URLS="https://192.168.35.101:2379"
ETCD_INITIAL_CLUSTER="etcd01=https://192.168.35.128:2380,etcd02=https://192.168.35.195:2380,etcd03=https://192.168.35.138:2380"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
ETCD_INITIAL_CLUSTER_STATE="new"[root@localhost ~]# vim /opt/etcd/cfg/etcd
#[Member]
ETCD_NAME="etcd03"
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
ETCD_LISTEN_PEER_URLS="https://192.168.35.102:2380"
ETCD_LISTEN_CLIENT_URLS="https://192.168.35.102:2379"
#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="https://192.168.35.102:2380"
ETCD_ADVERTISE_CLIENT_URLS="https://192.168.35.102:2379"
ETCD_INITIAL_CLUSTER="etcd01=https://192.168.35.128:2380,etcd02=https://192.168.35.195:2380,etcd03=https://192.168.35.138:2380"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
ETCD_INITIAL_CLUSTER_STATE="new"[root@localhost system]# cd /root/k8s/
[root@localhost k8s]# bash etcd.sh etcd01 192.168.35.100 etcd02=https://192.168.35.101:2380,etcd03=https://192.168.35.102:2380[root@localhost ~]# systemctl start etcd
[root@localhost ~]# systemctl status etcd[root@localhost k8s]# bash etcd.sh etcd01 192.168.35.100 etcd02=https://192.168.35.101:2380,etcd03=https://192.168.35.102:2380[root@localhost k8s]# cd etcd-cert/
[root@localhost etcd-cert]# /opt/etcd/bin/etcdctl --ca-file=ca.pem --cert-file=server.pem --key-file=server-key.pem --endpoints="https://192.168.35.100:2379,https://192.168.35.101:2379,https://192.168.35.102:2379" cluster-health
member 12a96220ac829a49 is healthy: got healthy result from https://192.168.35.195:2379
member 76797989afd0ecba is healthy: got healthy result from https://192.168.35.128:2379
member ff469df2baaba1da is healthy: got healthy result from https://192.168.35.138:2379
cluster is healthyyum install -y yum-utils device-mapper-persistent-data lvm2yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repoyum install -y docker-cesystemctl stop firewalld.service
setenforce 0systemctl start docker.service
systemctl enable docker.service tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://cz1numin.mirror.aliyuncs.com"]
}
EOF
##重载并重启服务
systemctl daemon-reload
systemctl restart dockervim /etc/sysctl.conf
net.ipv4.ip_forward=1
##重载配置、重启网卡、重启服务
sysctl -p
service network restart
systemctl restart docker[root@localhost etcd-cert]# /opt/etcd/bin/etcdctl --ca-file=ca.pem --cert-file=server.pem --key-file=server-key.pem --endpoints="https://192.168.35.100:2379,https://192.168.35.101:2379,https://192.168.35.102:2379" set /coreos.com/network/config '{ "Network": "172.17.0.0/16", "Backend": {"Type": "vxlan"}}'
{ "Network": "172.17.0.0/16", "Backend": {"Type": "vxlan"}}[root@localhost etcd-cert]# /opt/etcd/bin/etcdctl --ca-file=ca.pem --cert-file=server.pem --key-file=server-key.pem --endpoints="https://192.168.35.100:2379,https://192.168.35.101:2379,https://192.168.35.102:2379" get /coreos.com/network/config
{ "Network": "172.17.0.0/16", "Backend": {"Type": "vxlan"}}[root@localhost k8s]# scp flannel-v0.10.0-linux-amd64.tar.gz root@192.168.35.101:/root
root@192.168.35.101's password:
flannel-v0.10.0-linux-amd64.tar.gz 100% 9479KB 66.6MB/s 00:00
[root@localhost k8s]# scp flannel-v0.10.0-linux-amd64.tar.gz root@192.168.35.102:/root
root@192.168.35.102's password:
flannel-v0.10.0-linux-amd64.tar.gz 100% 9479KB 75.7MB/s 00:00 [root@localhost ~]# tar zxvf flannel-v0.10.0-linux-amd64.tar.gz
flanneld
mk-docker-opts.sh
README.md[root@localhost ~]# ls /opt/
containerd etcd rh
[root@localhost ~]# mkdir /opt/kubernetes/{cfg,bin,ssl} -p
[root@localhost ~]# ls /opt/
containerd etcd kubernetes rh
[root@localhost ~]# mv mk-docker-opts.sh flanneld /opt/kubernetes/bin/
[root@localhost ~]# ls /opt/kubernetes/bin/
flanneld mk-docker-opts.sh
[root@localhost ~]# vim flannel.sh
#!/bin/bash
ETCD_ENDPOINTS=${1:-"http://127.0.0.1:2379"}
cat <<EOF >/opt/kubernetes/cfg/flanneld
FLANNEL_OPTIONS="--etcd-endpoints=${ETCD_ENDPOINTS} \
-etcd-cafile=/opt/etcd/ssl/ca.pem \
-etcd-certfile=/opt/etcd/ssl/server.pem \
-etcd-keyfile=/opt/etcd/ssl/server-key.pem"
EOF
cat <<EOF >/usr/lib/systemd/system/flanneld.service
[Unit]
Description=Flanneld overlay address etcd agent
After=network-online.target network.target
Before=docker.service
[Service]
Type=notify
EnvironmentFile=/opt/kubernetes/cfg/flanneld
ExecStart=/opt/kubernetes/bin/flanneld --ip-masq \$FLANNEL_OPTIONS
ExecStartPost=/opt/kubernetes/bin/mk-docker-opts.sh -k DOCKER_NETWORK_OPTIONS -d /run/flannel/subnet.env
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF
systemctl daemon-reload
systemctl enable flanneld
systemctl restart flanneld[root@localhost ~]# bash flannel.sh https://192.168.35.100:2379,https://192.168.35.101:2379,https://192.168.35.102:2379
Created symlink from /etc/systemd/system/multi-user.target.wants/flanneld.service to /usr/lib/systemd/system/flanneld.service.[root@localhost ~]# vim /usr/lib/systemd/system/docker.service
[Service]
Type=notify
# the default is not to use systemd for cgroups because the delegate issues still
# exists and systemd currently does not support the cgroup feature set required
# for containers run by docker
EnvironmentFile=/run/flannel/subnet.env
ExecStart=/usr/bin/dockerd $DOCKER_NETWORK_OPTIONS -H fd:// --containerd=/run/containerd/containerd.sock
ExecReload=/bin/kill -s HUP $MAINPID
TimeoutSec=0
RestartSec=2
Restart=always[root@localhost ~]# cat /run/flannel/subnet.env
DOCKER_OPT_BIP="--bip=172.17.23.1/24"
DOCKER_OPT_IPMASQ="--ip-masq=false"
DOCKER_OPT_MTU="--mtu=1450"
DOCKER_NETWORK_OPTIONS=" --bip=172.17.23.1/24 --ip-masq=false --mtu=1450"[root@localhost ~]# systemctl daemon-reload
[root@localhost ~]# systemctl restart docker[root@localhost ~]# ifconfig
docker0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 172.17.23.1 netmask 255.255.255.0 broadcast 172.17.23.255
ether 02:42:7d:9a:31:89 txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.35.101 netmask 255.255.255.0 broadcast 192.168.35.255
inet6 fe80::d4e2:ef9e:6820:145a prefixlen 64 scopeid 0x20<link>
inet6 fe80::2a3:b621:ca01:463e prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:01:82:fd txqueuelen 1000 (Ethernet)
RX packets 1148980 bytes 1135571843 (1.0 GiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 594986 bytes 64240523 (61.2 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
flannel.1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1450
inet 172.17.23.0 netmask 255.255.255.255 broadcast 0.0.0.0
inet6 fe80::58e3:97ff:fe97:28f2 prefixlen 64 scopeid 0x20<link>
ether 5a:e3:97:97:28:f2 txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 141 overruns 0 carrier 0 collisions 0[root@localhost ~]# docker run -it centos:7 /bin/bash
Unable to find image 'centos:7' locally
7: Pulling from library/centos
ab5ef0e58194: Pull complete
Digest: sha256:4a701376d03f6b39b8c2a8f4a8e499441b0d567f9ab9d58e4991de4472fb813c
Status: Downloaded newer image for centos:7
[root@809ba7f7fdbe /]# yum install net-tools -y #安装工具后才能使用ifconfig命令
[root@809ba7f7fdbe /]# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1450
inet 172.17.23.2 netmask 255.255.255.0 broadcast 172.17.23.255
ether 02:42:ac:11:17:02 txqueuelen 0 (Ethernet)
RX packets 17384 bytes 13962588 (13.3 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 5915 bytes 323222 (315.6 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
loop txqueuelen 1 (Local Loopback)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0注释：这里过程就省略了，只看下重要的结果
[root@localhost ~]# vim /usr/lib/systemd/system/docker.service
[root@localhost ~]# cat /run/flannel/subnet.env
DOCKER_OPT_BIP="--bip=172.17.56.1/24"
DOCKER_OPT_IPMASQ="--ip-masq=false"
DOCKER_OPT_MTU="--mtu=1450"
DOCKER_NETWORK_OPTIONS=" --bip=172.17.56.1/24 --ip-masq=false --mtu=1450"[root@localhost ~]# ifconfig
docker0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 172.17.56.1 netmask 255.255.255.0 broadcast 172.17.56.255
ether 02:42:4b:66:50:5b txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
flannel.1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1450
inet 172.17.56.0 netmask 255.255.255.255 broadcast 0.0.0.0
inet6 fe80::50f6:daff:fe4e:af02 prefixlen 64 scopeid 0x20<link>
ether 52:f6:da:4e:af:02 txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 106 overruns 0 carrier 0 collisions 0[root@localhost ~]# docker run -it centos:7 /bin/bash
Unable to find image 'centos:7' locally
7: Pulling from library/centos
ab5ef0e58194: Pull complete
Digest: sha256:4a701376d03f6b39b8c2a8f4a8e499441b0d567f9ab9d58e4991de4472fb813c
Status: Downloaded newer image for centos:7
[root@5d34e9d6766e /]# yum install net-tools -y
[root@5d34e9d6766e /]# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1450
inet 172.17.56.2 netmask 255.255.255.0 broadcast 172.17.56.255
ether 02:42:ac:11:38:02 txqueuelen 0 (Ethernet)
RX packets 17199 bytes 13954199 (13.3 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 6723 bytes 367133 (358.5 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
loop txqueuelen 1 (Local Loopback)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0[root@localhost ~]# ping 172.17.56.1
PING 172.17.56.1 (172.17.56.1) 56(84) bytes of data.
64 bytes from 172.17.56.1: icmp_seq=1 ttl=64 time=0.307 ms
64 bytes from 172.17.56.1: icmp_seq=2 ttl=64 time=0.385 ms
64 bytes from 172.17.56.1: icmp_seq=3 ttl=64 time=0.302 ms[root@809ba7f7fdbe /]# ping 172.17.56.2
PING 172.17.56.2 (172.17.56.2) 56(84) bytes of data.
64 bytes from 172.17.56.2: icmp_seq=1 ttl=62 time=0.487 ms
64 bytes from 172.17.56.2: icmp_seq=2 ttl=62 time=0.273 ms
64 bytes from 172.17.56.2: icmp_seq=3 ttl=62 time=0.234 ms[root@localhost k8s]# ls
etcd-cert etcd-v3.3.10-linux-amd64.tar.gz master.zip
etcd.sh flannel-v0.10.0-linux-amd64.tar.gz
etcd-v3.3.10-linux-amd64 kubernetes-server-linux-amd64.tar.gz
[root@localhost k8s]# unzip master.zip
Archive: master.zip
inflating: apiserver.sh
inflating: controller-manager.sh
inflating: scheduler.sh
[root@localhost k8s]# mkdir /opt/kubernetes/{cfg,bin,ssl} -p
[root@localhost k8s]# mkdir k8s-cert #apiserver自签证书目录
[root@localhost k8s]# cd k8s-cert/
[root@localhost k8s-cert]# ls
k8s-cert.sh
//k8s-cert.sh脚本
cat > ca-config.json <<EOF
{
"signing": {
"default": {
"expiry": "87600h"
},
"profiles": {
"kubernetes": {
"expiry": "87600h",
"usages": [
"signing",
"key encipherment",
"server auth",
"client auth"
]
}
}
}
}
EOF
cat > ca-csr.json <<EOF
{
"CN": "kubernetes",
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"L": "Beijing",
"ST": "Beijing",
"O": "k8s",
"OU": "System"
}
]
}
EOF
cfssl gencert -initca ca-csr.json | cfssljson -bare ca -
#-----------------------
cat > server-csr.json <<EOF
{
"CN": "kubernetes",
"hosts": [
"10.0.0.1",
"127.0.0.1",
"192.168.35.100", //master1
"192.168.35.103", //master2
"192.168.35.200", //vip
"192.168.35.104", //nginx1（master）
"192.168.35.105", //nginx2（backup）
"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"
}
]
}
EOF
cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes server-csr.json | cfssljson -bare server
#-----------------------
cat > admin-csr.json <<EOF
{
"CN": "admin",
"hosts": [],
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"L": "BeiJing",
"ST": "BeiJing",
"O": "system:masters",
"OU": "System"
}
]
}
EOF
cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes admin-csr.json | cfssljson -bare admin
#-----------------------
cat > kube-proxy-csr.json <<EOF
{
"CN": "system:kube-proxy",
"hosts": [],
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"L": "BeiJing",
"ST": "BeiJing",
"O": "k8s",
"OU": "System"
}
]
}
EOF
cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes kube-proxy-csr.json | cfssljson -bare kube-proxy[root@localhost k8s-cert]# bash k8s-cert.sh
2020/02/05 15:04:48 [INFO] generating a new CA key and certificate from CSR
2020/02/05 15:04:48 [INFO] generate received request
2020/02/05 15:04:48 [INFO] received CSR
2020/02/05 15:04:48 [INFO] generating key: rsa-2048
2020/02/05 15:04:49 [INFO] encoded CSR
2020/02/05 15:04:49 [INFO] signed certificate with serial number 213037901624270895781178406733487458634913677457
2020/02/05 15:04:49 [INFO] generate received request
2020/02/05 15:04:49 [INFO] received CSR
2020/02/05 15:04:49 [INFO] generating key: rsa-2048
2020/02/05 15:04:49 [INFO] encoded CSR
2020/02/05 15:04:49 [INFO] signed certificate with serial number 459900166635201812257861637517291405808825101980
2020/02/05 15:04:49 [WARNING] This certificate lacks a "hosts" field. This makes it unsuitable for
websites. For more information see the Baseline Requirements for the Issuance and Management
of Publicly-Trusted Certificates, v.1.1.6, from the CA/Browser Forum (https://cabforum.org);
specifically, section 10.2.3 ("Information Requirements").
2020/02/05 15:04:49 [INFO] generate received request
2020/02/05 15:04:49 [INFO] received CSR
2020/02/05 15:04:49 [INFO] generating key: rsa-2048
2020/02/05 15:04:49 [INFO] encoded CSR
2020/02/05 15:04:49 [INFO] signed certificate with serial number 229556723754610484918666718008179982380721010192
2020/02/05 15:04:49 [WARNING] This certificate lacks a "hosts" field. This makes it unsuitable for
websites. For more information see the Baseline Requirements for the Issuance and Management
of Publicly-Trusted Certificates, v.1.1.6, from the CA/Browser Forum (https://cabforum.org);
specifically, section 10.2.3 ("Information Requirements").
2020/02/05 15:04:49 [INFO] generate received request
2020/02/05 15:04:49 [INFO] received CSR
2020/02/05 15:04:49 [INFO] generating key: rsa-2048
2020/02/05 15:04:49 [INFO] encoded CSR
2020/02/05 15:04:49 [INFO] signed certificate with serial number 435030710152838930041815329750301323468065876772
2020/02/05 15:04:49 [WARNING] This certificate lacks a "hosts" field. This makes it unsuitable for
websites. For more information see the Baseline Requirements for the Issuance and Management
of Publicly-Trusted Certificates, v.1.1.6, from the CA/Browser Forum (https://cabforum.org);
specifically, section 10.2.3 ("Information Requirements").
[root@localhost k8s-cert]# ls *pem
admin-key.pem ca-key.pem kube-proxy-key.pem server-key.pem
admin.pem ca.pem kube-proxy.pem server.pem
[root@localhost k8s-cert]# cp ca*pem server*pem /opt/kubernetes/ssl/[root@localhost k8s-cert]# cd ..
[root@localhost k8s]# ls
apiserver.sh flannel-v0.10.0-linux-amd64.tar.gz
controller-manager.sh k8s-cert
etcd-cert kubernetes-server-linux-amd64.tar.gz
etcd.sh master.zip
etcd-v3.3.10-linux-amd64 scheduler.sh
etcd-v3.3.10-linux-amd64.tar.gz
[root@localhost k8s]# tar zxvf kubernetes-server-linux-amd64.tar.gz [root@localhost k8s]# cd /root/k8s/kubernetes/server/bin/
[root@localhost bin]# ls
apiextensions-apiserver kube-controller-manager.tar
cloud-controller-manager kubectl
cloud-controller-manager.docker_tag kubelet
cloud-controller-manager.tar kube-proxy
hyperkube kube-proxy.docker_tag
kubeadm kube-proxy.tar
kube-apiserver kube-scheduler
kube-apiserver.docker_tag kube-scheduler.docker_tag
kube-apiserver.tar kube-scheduler.tar
kube-controller-manager mounter
kube-controller-manager.docker_tag
[root@localhost bin]# cp kube-apiserver kubectl kube-controller-manager kube-scheduler /opt/kubernetes/bin/[root@localhost k8s]# head -c 16 /dev/urandom | od -An -t x | tr -d ' '
b639a2717c79839fd7fab7bac97dca32 #随机生成的序列号
[root@localhost k8s]# vim /opt/kubernetes/cfg/token.csv
b639a2717c79839fd7fab7bac97dca32,kubelet-bootstrap,10001,"system:kubelet-bootstrap"
##序列号 用户名 id 角色[root@localhost k8s]# bash apiserver.sh 192.168.35.100 https://192.168.35.100:2379,https://192.168.35.101:2379,https://192.168.35.102:2379
Created symlink from /etc/systemd/system/multi-user.target.wants/kube-apiserver.service to /usr/lib/systemd/system/kube-apiserver.service.[root@localhost k8s]# ps aux | grep kube
root 83786 92.7 14.4 358828 269812 ? Ssl 15:56 0:06 /opt/kubernetes/bin/kube-apiserver --logtostderr=true --v=4 --etcd-servers=https://192.168.35.100:2379,https://192.168.35.101:2379,https://192.168.35.102:2379 --bind-address=192.168.35.100 --secure-port=6443 --advertise-address=192.168.35.100 --allow-privileged=true --service-cluster-ip-range=10.0.0.0/24 --enable-admission-plugins=NamespaceLifecycle,LimitRanger,ServiceAccount,ResourceQuota,NodeRestriction --authorization-mode=RBAC,Node --kubelet-https=true --enable-bootstrap-token-auth --token-auth-file=/opt/kubernetes/cfg/token.csv --service-node-port-range=30000-50000 --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
root 83794 0.0 0.0 112676 980 pts/0 S+ 15:56 0:00 grep --color=auto kube[root@localhost k8s]# cat /opt/kubernetes/cfg/kube-apiserver
KUBE_APISERVER_OPTS="--logtostderr=true \
--v=4 \
--etcd-servers=https://192.168.35.100:2379,https://192.168.35.101:2379,https://192.168.35.102:2379 \
--bind-address=192.168.35.100 \
--secure-port=6443 \
--advertise-address=192.168.35.100 \
--allow-privileged=true \
--service-cluster-ip-range=10.0.0.0/24 \
--enable-admission-plugins=NamespaceLifecycle,LimitRanger,ServiceAccount,ResourceQuota,NodeRestriction \
--authorization-mode=RBAC,Node \
--kubelet-https=true \
--enable-bootstrap-token-auth \
--token-auth-file=/opt/kubernetes/cfg/token.csv \
--service-node-port-range=30000-50000 \
--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"[root@localhost k8s]# netstat -ntap | grep 6443
tcp 0 0 192.168.35.100:6443 0.0.0.0:* LISTEN 83786/kube-apiserve
tcp 0 0 192.168.35.100:44312 192.168.35.100:6443 ESTABLISHED 83786/kube-apiserve
tcp 0 0 192.168.35.100:6443 192.168.35.100:44312 ESTABLISHED 83786/kube-apiserve
[root@localhost k8s]# netstat -ntap | grep 8080
tcp 0 0 127.0.0.1:8080 0.0.0.0:* LISTEN 83786/kube-apiserve [root@localhost k8s]# ./scheduler.sh 127.0.0.1
Created symlink from /etc/systemd/system/multi-user.target.wants/kube-scheduler.service to /usr/lib/systemd/system/kube-scheduler.service.
[root@localhost k8s]# ps aux | grep ku
postfix 83202 0.0 0.2 91732 4008 ? S 15:10 0:00 pickup -l -t unix -u
root 83786 4.3 18.3 427420 342812 ? Ssl 15:56 0:12 /opt/kubernetes/bin/kube-apiserver --logtostderr=true --v=4 --etcd-servers=https://192.168.35.100:2379,https://192.168.35.101:2379,https://192.168.35.102:2379 --bind-address=192.168.35.100 --secure-port=6443 --advertise-address=192.168.35.100 --allow-privileged=true --service-cluster-ip-range=10.0.0.0/24 --enable-admission-plugins=NamespaceLifecycle,LimitRanger,ServiceAccount,ResourceQuota,NodeRestriction --authorization-mode=RBAC,Node --kbelet-https=true --enable-bootstrap-token-auth --token-auth-file=/opt/kubernetes/cfg/token.csv --service-node-port-range=30000-50000 --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
root 83904 0.8 1.0 45360 20356 ? Ssl 16:01 0:00 /opt/kubernetes/bin/kube-scheduler --logtostderr=true --v=4 --master=127.0.0.1:8080 --leader-elect
root 83912 0.0 0.0 112676 984 pts/0 R+ 16:01 0:00 grep --color=auto ku[root@localhost k8s]# chmod +x controller-manager.sh
[root@localhost k8s]# ./controller-manager.sh 127.0.0.1
Created symlink from /etc/systemd/system/multi-user.target.wants/kube-controller-manager.service to /usr/lib/systemd/system/kube-controller-manager.service.[root@localhost k8s]# /opt/kubernetes/bin/kubectl get cs
NAME STATUS MESSAGE ERROR
scheduler Healthy ok
controller-manager Healthy ok
etcd-2 Healthy {"health":"true"}
etcd-1 Healthy {"health":"true"}
etcd-0 Healthy {"health":"true"} [root@localhost k8s]# cd kubernetes/server/bin/
[root@localhost bin]# ls
apiextensions-apiserver kube-controller-manager.tar
cloud-controller-manager kubectl
cloud-controller-manager.docker_tag kubelet
cloud-controller-manager.tar kube-proxy
hyperkube kube-proxy.docker_tag
kubeadm kube-proxy.tar
kube-apiserver kube-scheduler
kube-apiserver.docker_tag kube-scheduler.docker_tag
kube-apiserver.tar kube-scheduler.tar
kube-controller-manager mounter
kube-controller-manager.docker_tag
[root@localhost bin]# scp kubelet kube-proxy root@192.168.35.101:/opt/kubernetes/bin/
root@192.168.35.101's password:
kubelet 100% 168MB 87.4MB/s 00:01
kube-proxy 100% 48MB 90.9MB/s 00:00
[root@localhost bin]# scp kubelet kube-proxy root@192.168.35.102:/opt/kubernetes/bin/
root@192.168.35.102's password:
kubelet 100% 168MB 93.4MB/s 00:01
kube-proxy 100% 48MB 100.5MB/s 00:00 [root@localhost ~]# ls
anaconda-ks.cfg initial-setup-ks.cfg 公共 图片 音乐
flannel.sh node.zip 模板 文档 桌面
flannel-v0.10.0-linux-amd64.tar.gz README.md 视频 下载
[root@localhost ~]# unzip node.zip
Archive: node.zip
inflating: proxy.sh
inflating: kubelet.sh [root@localhost k8s]# mkdir kubeconfig
[root@localhost k8s]# cd kubeconfig/
[root@localhost kubeconfig]# ls
kubeconfig.sh
kubeconfig.sh脚本如下 ：
# 创建 TLS Bootstrapping Token
#BOOTSTRAP_TOKEN=$(head -c 16 /dev/urandom | od -An -t x | tr -d ' ')
BOOTSTRAP_TOKEN=0fb61c46f8991b718eb38d27b605b008
cat > token.csv <<EOF
${BOOTSTRAP_TOKEN},kubelet-bootstrap,10001,"system:kubelet-bootstrap"
EOF
#---------------------- #此部分删掉
APISERVER=$1
SSL_DIR=$2
# 创建kubelet bootstrapping kubeconfig
export KUBE_APISERVER="https://$APISERVER:6443"
# 设置集群参数
kubectl config set-cluster kubernetes \
--certificate-authority=$SSL_DIR/ca.pem \
--embed-certs=true \
--server=${KUBE_APISERVER} \
--kubeconfig=bootstrap.kubeconfig
# 设置客户端认证参数
kubectl config set-credentials kubelet-bootstrap \
--token=${BOOTSTRAP_TOKEN} \
--kubeconfig=bootstrap.kubeconfig
# 设置上下文参数
kubectl config set-context default \
--cluster=kubernetes \
--user=kubelet-bootstrap \
--kubeconfig=bootstrap.kubeconfig
# 设置默认上下文
kubectl config use-context default --kubeconfig=bootstrap.kubeconfig
#----------------------
# 创建kube-proxy kubeconfig文件
kubectl config set-cluster kubernetes \
--certificate-authority=$SSL_DIR/ca.pem \
--embed-certs=true \
--server=${KUBE_APISERVER} \
--kubeconfig=kube-proxy.kubeconfig
kubectl config set-credentials kube-proxy \
--client-certificate=$SSL_DIR/kube-proxy.pem \
--client-key=$SSL_DIR/kube-proxy-key.pem \
--embed-certs=true \
--kubeconfig=kube-proxy.kubeconfig
kubectl config set-context default \
--cluster=kubernetes \
--user=kube-proxy \
--kubeconfig=kube-proxy.kubeconfig
kubectl config use-context default --kubeconfig=kube-proxy.kubeconfig[root@localhost kubeconfig]# cat /opt/kubernetes/cfg/token.csv
b639a2717c79839fd7fab7bac97dca32,kubelet-bootstrap,10001,"system:kubelet-bootstr[root@localhost kubeconfig]# vim kubeconfig.sh
# 设置客户端认证参数
kubectl config set-credentials kubelet-bootstrap \
--token=b639a2717c79839fd7fab7bac97dca32 \
--kubeconfig=bootstrap.kubeconfig[root@localhost kubeconfig]# vim /etc/profile
//在末行插入
export PATH=$PATH:/opt/kubernetes/bin/
[root@localhost kubeconfig]# source /etc/profile #声明
[root@localhost kubeconfig]# kubectl get cs #查看状态
NAME STATUS MESSAGE ERROR
scheduler Healthy ok
controller-manager Healthy ok
etcd-1 Healthy {"health":"true"}
etcd-2 Healthy {"health":"true"}
etcd-0 Healthy {"health":"true"} [root@localhost kubeconfig]# mv kubeconfig.sh kubeconfig
[root@localhost kubeconfig]# ls
kubeconfig
[root@localhost kubeconfig]# vim kubeconfig
[root@localhost kubeconfig]# bash kubeconfig 192.168.35.100 /root/k8s/k8s-cert/
Cluster "kubernetes" set.
User "kubelet-bootstrap" set.
Context "default" created.
Switched to context "default".
Cluster "kubernetes" set.
User "kube-proxy" set.
Context "default" created.
Switched to context "default".
[root@localhost kubeconfig]# ls
bootstrap.kubeconfig kubeconfig kube-proxy.kubeconfig[root@localhost kubeconfig]# scp bootstrap.kubeconfig kube-proxy.kubeconfig root@192.168.35.101:/opt/kubernetes/cfg/
root@192.168.35.101's password:
bootstrap.kubeconfig 100% 2168 2.7MB/s 00:00
kube-proxy.kubeconfig 100% 6270 5.1MB/s 00:00
[root@localhost kubeconfig]# scp bootstrap.kubeconfig kube-proxy.kubeconfig root@192.168.35.102:/opt/kubernetes/cfg/
root@192.168.35.102's password:
bootstrap.kubeconfig 100% 2168 1.8MB/s 00:00
kube-proxy.kubeconfig 100% 6270 5.9MB/s 00:00[root@localhost kubeconfig]# kubectl create clusterrolebinding kubelet-bootstrap --clusterrole=system:node-bootstrapper --user=kubelet-bootstrap
clusterrolebinding.rbac.authorization.k8s.io/kubelet-bootstrap created[root@localhost ~]# bash kubelet.sh 192.168.35.101
Created symlink from /etc/systemd/system/multi-user.target.wants/kubelet.service to /usr/lib/systemd/system/kubelet.service.[root@localhost ~]# ps aux | grep kube
root 85079 0.0 0.8 300512 16424 ? Ssl 13:49 0:02 /opt/kubernetes/bin/flanneld --ip-masq --etcd-endpoints=https://192.168.35.100:2379,https://192.168.35.101:2379,https://192.168.35.102:2379 -etcd-cafile=/opt/etcd/ssl/ca.pem -etcd-certfile=/opt/etcd/ssl/server.pem -etcd-keyfile=/opt/etcd/ssl/server-key.pem
root 109665 0.6 2.3 370688 42948 ? Ssl 18:46 0:00 /opt/kubernetes/bin/kubelet --logtostderr=true --v=4 --hostname-override=192.168.35.101 --kubeconfig=/opt/kubernetes/cfg/kubelet.kubeconfig --bootstrap-kubeconfig=/opt/kubernetes/cfg/bootstrap.kubeconfig --config=/opt/kubernetes/cfg/kubelet.config --cert-dir=/opt/kubernetes/ssl --pod-infra-container-image=registry.cn-hangzhou.aliyuncs.com/google-containers/pause-amd64:3.0
root 109762 0.0 0.0 112676 980 pts/0 S+ 18:47 0:00 grep --color=auto kube[root@localhost ~]# systemctl status kubelet.service
● kubelet.service - Kubernetes Kubelet
Loaded: loaded (/usr/lib/systemd/system/kubelet.service; enabled; vendor preset: disabled)
Active: active (running) since 三 2020-02-05 18:46:35 CST; 3min 1s ago
Main PID: 109665 (kubelet)
Memory: 61.6M
CGroup: /system.slice/kubelet.service
└─109665 /opt/kubernetes/bin/kubelet --logtostderr=true --v=4 --hostnam...
2月 05 18:46:35 localhost.localdomain kubelet[109665]: I0205 18:46:35.374771 109...
2月 05 18:46:35 localhost.localdomain kubelet[109665]: I0205 18:46:35.601115 109...
2月 05 18:46:35 localhost.localdomain kubelet[109665]: I0205 18:46:35.619113 109...
2月 05 18:46:35 localhost.localdomain kubelet[109665]: I0205 18:46:35.619153 109...
2月 05 18:46:35 localhost.localdomain kubelet[109665]: I0205 18:46:35.619192 109...
2月 05 18:46:35 localhost.localdomain kubelet[109665]: I0205 18:46:35.619229 109...
2月 05 18:46:35 localhost.localdomain kubelet[109665]: I0205 18:46:35.619294 109...
2月 05 18:46:35 localhost.localdomain kubelet[109665]: I0205 18:46:35.619302 109...
2月 05 18:46:35 localhost.localdomain kubelet[109665]: I0205 18:46:35.620575 109...
2月 05 18:46:35 localhost.localdomain kubelet[109665]: I0205 18:46:35.622388 109...
Hint: Some lines were ellipsized, use -l to show in full.[root@localhost kubeconfig]# kubectl get csr
NAME AGE REQUESTOR CONDITION
node-csr-HF551kae9hkzNGwirEbd2uAiStXnawpEI-y7nLP4sTU 5m9s kubelet-bootstrap Pending
Pending（等待集群给该节点颁发证书）[root@localhost kubeconfig]# kubectl certificate approve node-csr-HF551kae9hkzNGwirEbd2uAiStXnawpEI-y7nLP4sTU
certificatesigningrequest.certificates.k8s.io/node-csr-HF551kae9hkzNGwirEbd2uAiStXnawpEI-y7nLP4sTU approved[root@localhost kubeconfig]# kubectl get csr
NAME AGE REQUESTOR CONDITION
node-csr-HF551kae9hkzNGwirEbd2uAiStXnawpEI-y7nLP4sTU 9m18s kubelet-bootstrap Approved,Issued
Approved,Issued（已经被允许加入群集）[root@localhost kubeconfig]# kubectl get node
NAME STATUS ROLES AGE VERSION
192.168.35.101 Ready <none> 2m18s v1.12.3[root@localhost ~]# bash proxy.sh 192.168.35.101
Created symlink from /etc/systemd/system/multi-user.target.wants/kube-proxy.service to /usr/lib/systemd/system/kube-proxy.service.
[root@localhost ~]# systemctl status kube-proxy.service
● kube-proxy.service - Kubernetes Proxy
Loaded: loaded (/usr/lib/systemd/system/kube-proxy.service; enabled; vendor preset: disabled)
Active: active (running) since 三 2020-02-05 18:59:58 CST; 33s ago
Main PID: 111731 (kube-proxy)
Memory: 8.9M
CGroup: /system.slice/kube-proxy.service
‣ 111731 /opt/kubernetes/bin/kube-proxy --logtostderr=true --v=4 --host...
2月 05 19:00:28 localhost.localdomain kube-proxy[111731]: I0205 19:00:28.692738 ...
2月 05 19:00:28 localhost.localdomain kube-proxy[111731]: I0205 19:00:28.695213 ...
2月 05 19:00:28 localhost.localdomain kube-proxy[111731]: I0205 19:00:28.713256 ...
2月 05 19:00:28 localhost.localdomain kube-proxy[111731]: I0205 19:00:28.724431 ...
2月 05 19:00:28 localhost.localdomain kube-proxy[111731]: I0205 19:00:28.727449 ...
2月 05 19:00:28 localhost.localdomain kube-proxy[111731]: I0205 19:00:28.727463 ...
2月 05 19:00:29 localhost.localdomain kube-proxy[111731]: I0205 19:00:29.754834 ...
2月 05 19:00:29 localhost.localdomain kube-proxy[111731]: I0205 19:00:29.799929 ...
2月 05 19:00:31 localhost.localdomain kube-proxy[111731]: I0205 19:00:31.754579 ...
2月 05 19:00:31 localhost.localdomain kube-proxy[111731]: I0205 19:00:31.797581 ...
Hint: Some lines were ellipsized, use -l to show in full.[root@localhost ~]# scp -r /opt/kubernetes/ root@192.168.35.102:/opt/
The authenticity of host '192.168.35.102 (192.168.35.102)' can't be established.
ECDSA key fingerprint is SHA256:JsLSnAul/dncM/HPvpJWWB09dHLzpIfArHv1fWjQyA8.
ECDSA key fingerprint is MD5:d1:b7:d7:74:c6:4a:2a:7b:fc:33:8c:9c:3a:f2:6e:8a.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.35.102' (ECDSA) to the list of known hosts.
root@192.168.35.102's password:
flanneld 100% 238 100.8KB/s 00:00
bootstrap.kubeconfig 100% 2168 5.8MB/s 00:00
kube-proxy.kubeconfig 100% 6270 11.5MB/s 00:00
kubelet 100% 378 885.4KB/s 00:00
kubelet.config 100% 268 812.9KB/s 00:00
kubelet.kubeconfig 100% 2297 5.7MB/s 00:00
kube-proxy 100% 190 546.5KB/s 00:00
mk-docker-opts.sh 100% 2139 3.5MB/s 00:00
scp: /opt//kubernetes/bin/flanneld: Text file busy
kubelet 100% 168MB 116.0MB/s 00:01
kube-proxy 100% 48MB 122.2MB/s 00:00
kubelet.crt 100% 2193 729.3KB/s 00:00
kubelet.key 100% 1675 3.5MB/s 00:00
kubelet-client-2020-02-05-18-55-07.pem 100% 1277 488.0KB/s 00:00
kubelet-client-current.pem 100% 1277 423.3KB/s 00:00[root@localhost ~]# scp /usr/lib/systemd/system/{kubelet,kube-proxy}.service root@192.168.35.102:/usr/lib/systemd/system/
root@192.168.35.102's password:
kubelet.service 100% 264 113.9KB/s 00:00
kube-proxy.service 100% 231 529.7KB/s 00:00[root@localhost ~]# cd /opt/kubernetes/ssl/
[root@localhost ssl]# rm -rf *[root@localhost ssl]# cd ../cfg/
[root@localhost cfg]# ls
bootstrap.kubeconfig kubelet kubelet.kubeconfig kube-proxy.kubeconfig
flanneld kubelet.config kube-proxy
[root@localhost cfg]# vim kubelet
KUBELET_OPTS="--logtostderr=true \
--v=4 \
--hostname-override=192.168.35.102 \
--kubeconfig=/opt/kubernetes/cfg/kubelet.kubeconfig \
--bootstrap-kubeconfig=/opt/kubernetes/cfg/bootstrap.kubeconfig \
--config=/opt/kubernetes/cfg/kubelet.config \
--cert-dir=/opt/kubernetes/ssl \
--pod-infra-container-image=registry.cn-hangzhou.aliyuncs.com/google-containers/pause-amd64:3.0"
[root@localhost cfg]# vim kubelet.config
kind: KubeletConfiguration
apiVersion: kubelet.config.k8s.io/v1beta1
address: 192.168.35.102
port: 10250
readOnlyPort: 10255
cgroupDriver: cgroupfs
clusterDNS:
- 10.0.0.2
clusterDomain: cluster.local.
failSwapOn: false
authentication:
anonymous:
enabled: true
[root@localhost cfg]# vim kube-proxy
KUBE_PROXY_OPTS="--logtostderr=true \
--v=4 \
--hostname-override=192.168.35.102 \
--cluster-cidr=10.0.0.0/24 \
--proxy-mode=ipvs \
--kubeconfig=/opt/kubernetes/cfg/kube-proxy.kubeconfig"[root@localhost cfg]# systemctl start kubelet.service
[root@localhost cfg]# systemctl enable kubelet.service
Created symlink from /etc/systemd/system/multi-user.target.wants/kubelet.service to /usr/lib/systemd/system/kubelet.service.
[root@localhost cfg]# systemctl start kube-proxy.service
[root@localhost cfg]# systemctl enable kube-proxy.service
Created symlink from /etc/systemd/system/multi-user.target.wants/kube-proxy.service to /usr/lib/systemd/system/kube-proxy.service.[root@localhost kubeconfig]# kubectl get csr
NAME AGE REQUESTOR CONDITION
node-csr-HF551kae9hkzNGwirEbd2uAiStXnawpEI-y7nLP4sTU 32m kubelet-bootstrap Approved,Issued
node-csr-TszRzIg1T7JcfFKuwrCb82bqv7mcwvX1xZD8KMQJZCY 2m25s kubelet-bootstrap Pending[root@localhost kubeconfig]# kubectl certificate approve node-csr-TszRzIg1T7JcfFKuwrCb82bqv7mcwvX1xZD8KMQJZCY
certificatesigningrequest.certificates.k8s.io/node-csr-TszRzIg1T7JcfFKuwrCb82bqv7mcwvX1xZD8KMQJZCY approved[root@localhost kubeconfig]# kubectl get node
[root@localhost kubeconfig]# kubectl get node
NAME STATUS ROLES AGE VERSION192.168.35.101 Ready <none> 24m v1.12.3 192.168.35.102 Ready <none> 17m v1.12.3
看完上述内容，你们对Kubernetes的集群部署有进一步的了解吗？如果还想学到更多技能或想了解更多相关内容，请关注亿速云行业资讯频道，感谢各位的阅读！
免责声明：本站发布的内容（图片、视频和文字）以原创、转载和分享为主，文章观点不代表本网站立场，如果涉及侵权请联系站长邮箱：is@yisu.com进行举报，并提供相关证据，一经查实，将立刻删除涉嫌侵权内容。