1、安装配置CFSSL
1.1、下载配置CFSSL
# 使用wget下载cfssl包
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
# 移动下载好的包
mv cfssl_linux-amd64 /app/kubernetes/bin/cfssl
mv cfssljson_linux-amd64 /app/kubernetes/bin/cfssljson
mv cfssl-certinfo_linux-amd64 /app/kubernetes/bin/cfssl-certinfo
# 赋予执行权限
chmod +x /app/kubernetes/bin/*
# 设置系统环境变量(可二选一,推荐1)
# 方式1:
vim /etc/profile
export PATH=$PATH:/app/kubernetes/bin
source /etc/profile
#方式2:
mv cfssl_linux-amd64 /usr/local/bin/cfssl
mv cfssljson_linux-amd64 /usr/local/bin/cfssljson
mv cfssl-certinfo_linux-amd64 /usr/local/bin/cfssl-certinfo
# cfssl同步到两个节点上
scp /app/kubernetes/bin/cfssl* k8s-node-1:/app/kubernetes/bin
scp /app/kubernetes/bin/cfssl* k8s-node-2:/app/kubernetes/bin
# 同步profile配置文件
scp /etc/profile k8s-node-1:/etc
scp /etc/profile k8s-node-2:/etc
# 然后分别在两个节点上 执行
source /etc/profile
1.2、初始话CFSSL
mkdir /usr/local/src/ssl && cd /usr/local/src/ssl
cfssl print-defaults config > ca-config.json
cfssl print-defaults csr > ca-csr.json
1.3、创建用来生成 CA 文件的 JSON 配置文件
vim ca-config.json
{
"signing": {
"default": {
"expiry": "8760h"
},
"profiles": {
"kubernetes": {
"usages": [
"signing",
"key encipherment",
"server auth",
"client auth"
],
"expiry": "8760h"
}
}
}
}
1.4、创建用来生成 CA 证书签名请求(CSR)的 JSON 配置文件
vim ca-csr.json
{
"CN": "kubernetes",
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"ST": "BeiJing",
"L": "BeiJing",
"O": "k8s",
"OU": "System"
}
]
}
1.5、生成CA证书(ca.pem)和密钥(ca-key.pem)
cfssl gencert -initca ca-csr.json | cfssljson -bare ca
[root@k8s-master-2 ssl]# ls -l ca*
-rw-r--r-- 1 root root 290 6月 11 11:52 ca-config.json
-rw-r--r-- 1 root root 1001 6月 11 11:55 ca.csr
-rw-r--r-- 1 root root 208 6月 11 11:53 ca-csr.json
-rw------- 1 root root 1679 6月 11 11:55 ca-key.pem
-rw-r--r-- 1 root root 1359 6月 11 11:55 ca.pem
1.6、分发证书
cp ca.csr ca.pem ca-key.pem ca-config.json /app/kubernetes/ssl
scp ca.csr ca.pem ca-key.pem ca-config.json k8s-node-1:/app/kubernetes/ssl
scp ca.csr ca.pem ca-key.pem ca-config.json k8s-node-2:/app/kubernetes/ssl
2、安装etcd
2.1、 准备etcd软件包
wget https://github.com/etcd-io/etcd/releases/download/v3.3.13/\
etcd-v3.3.13-linux-amd64.tar.gz
tar xf etcd-v3.3.13-linux-amd64.tar.gz && cd etcd-v3.3.13-linux-amd64/
cp etcd* /app/kubernetes/bin/
scp etcd* k8s-node-1:/app/kubernetes/bin/
scp etcd* k8s-node-2:/app/kubernetes/bin/
2.2、 创建 etcd 证书签名请求
vim etcd-csr.json
# 注意将hosts中的ip地址改写为自己机器的
{
"CN": "etcd",
"hosts": [
"127.0.0.1",
"192.168.189.139",
"192.168.189.131",
"192.168.189.132"
],
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"ST": "BeiJing",
"L": "BeiJing",
"O": "k8s",
"OU": "System"
}
]
}
2.3、 生成 etcd 证书和私钥
cfssl gencert -ca=/app/kubernetes/ssl/ca.pem \
-ca-key=/app/kubernetes/ssl/ca-key.pem \
-config=/app/kubernetes/ssl/ca-config.json \
-profile=kubernetes etcd-csr.json | cfssljson -bare etcd
2.4、 将证书移动到/opt/kubernetes/ssl目录下
scp etcd*.pem /app/kubernetes/ssl/
scp etcd*.pem k8s-node-1:/app/kubernetes/ssl/
scp etcd*.pem k8s-node-2:/app/kubernetes/ssl/
rm -rf etcd.csr etcd-csr.json
2.5、 设置ETCD配置文件
vim /app/kubernetes/cfg/etcd.conf
#[member]
ETCD_NAME="etcd-node1"
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
# ETCD_SNAPSHOT_COUNTER="10000"
# ETCD_HEARTBEAT_INTERVAL="100"
# ETCD_ELECTION_TIMEOUT="1000"
# 注意将ip地址改为自己机器的
ETCD_LISTEN_PEER_URLS="https://192.168.189.139:2380"
ETCD_LISTEN_CLIENT_URLS="https://192.168.189.139:2379,https://127.0.0.1:2379"
# ETCD_MAX_SNAPSHOTS="5"
# ETCD_MAX_WALS="5"
# ETCD_CORS=""
#[cluster]
# 注意将ip地址改为自己机器的
ETCD_INITIAL_ADVERTISE_PEER_URLS="https://192.168.189.139:2380"
# if you use different ETCD_NAME (e.g. test),
# set ETCD_INITIAL_CLUSTER value for this name, i.e. "test=http://..."
ETCD_INITIAL_CLUSTER="etcd-node1=https://192.168.189.139:2380,etcd-node2=https://192.168.189.131:2380,etcd-node3=https://192.168.189.132:2380"
ETCD_INITIAL_CLUSTER_STATE="new"
ETCD_INITIAL_CLUSTER_TOKEN="k8s-etcd-cluster"
# 注意将ip地址改为自己机器的
ETCD_ADVERTISE_CLIENT_URLS="https://192.168.189.139:2379"
#[security]
CLIENT_CERT_AUTH="true"
ETCD_CA_FILE="/app/kubernetes/ssl/ca.pem"
ETCD_CERT_FILE="/app/kubernetes/ssl/etcd.pem"
ETCD_KEY_FILE="/app/kubernetes/ssl/etcd-key.pem"
PEER_CLIENT_CERT_AUTH="true"
ETCD_PEER_CA_FILE="/app/kubernetes/ssl/ca.pem"
ETCD_PEER_CERT_FILE="/app/kubernetes/ssl/etcd.pem"
ETCD_PEER_KEY_FILE="/app/kubernetes/ssl/etcd-key.pem"
2.6、 创建etcd启动服务
vim /etc/systemd/system/etcd.service
[Unit]
Description=Etcd Server
After=network.target
[Service]
Type=simple
WorkingDirectory=/var/lib/etcd
EnvironmentFile=-/app/kubernetes/cfg/etcd.conf
# set GOMAXPROCS to number of processors
ExecStart=/bin/bash -c "GOMAXPROCS=$(nproc) /app/kubernetes/bin/etcd"
Type=notify
[Install]
WantedBy=multi-user.target
2.7、 复制相关文件到其它机器
scp /app/kubernetes/cfg/etcd.conf k8s-node-1:/app/kubernetes/cfg/
scp /app/kubernetes/cfg/etcd.conf k8s-node-2:/app/kubernetes/cfg/
scp /etc/systemd/system/etcd.service k8s-node-1:/etc/systemd/system/
scp /etc/systemd/system/etcd.service k8s-node-2:/etc/systemd/system/
修改另外两台机器的etcd.conf文件中的ETCD_NAME和监听IP,如下图所示,其中标蓝线的地方,ip都更换为当前机器的ip
然后在每个机器上面创建 /var/lib/etcd的文件夹 mkdir /var/lib/etcd 然后启动服务
systemctl daemon-reload && systemctl enable etcd
systemctl start etcd && systemctl status etcd
systemctl daemon-reload&& systemctl restart etcd && systemctl status etcd
2.8、 验证集群
复制etcdctl可执行文件到/usr/local/bin下 cp etcdctl /usr/local/bin 文件在解压包中
etcdctl --endpoints=https://192.168.189.139:2379 \
--ca-file=/app/kubernetes/ssl/ca.pem \
--cert-file=/app/kubernetes/ssl/etcd.pem \
--key-file=/app/kubernetes/ssl/etcd-key.pem cluster-health
如果成功,则输出
[root@k8s-master-2 etcd-v3.3.13-linux-amd64]# etcdctl \
--endpoints=https://192.168.189.139:2379 \
--ca-file=/app/kubernetes/ssl/ca.pem \
--cert-file=/app/kubernetes/ssl/etcd.pem \
--key-file=/app/kubernetes/ssl/etcd-key.pem cluster-health
member 503e8f4db410fddd is healthy: got healthy result from \
https://192.168.189.139:2379
member 9e40edb005055a20 is healthy: got healthy result from \
https://192.168.189.131:2379
member e2e15ce4d2c75a68 is healthy: got healthy result from \
https://192.168.189.132:2379
====================================================
Kubernetes-1.14.2的源码包+kernel-ml-4.18.9.tar.gz 有百度云盘资源,链接:https://pan.baidu.com/s/1NZW2DV64DkybD6QI42lw7Q ; 提取码:t5bv
====================================================
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