证书主机：远程docker主机携带证书连接的实现方法

#!/bin/bash
mkdir -p /root/tls/pem
#DOMAIN_HOST=`ifconfig eth0 | grep "inet" | awk '{ print $2}' | sed -n '1p;1q'`
DOMAIN_HOST=`hostname`
HOST=$DOMAIN_HOST
# 自定义信息
PASSWORD="HeDongHudj"
COUNTRY=CN
PROVINCE=gd
CITY=gz
ORGANIZATION=dounine
GROUP=dg
NAME=lake
SUBJ="/C=$COUNTRY/ST=$PROVINCE/L=$CITY/O=$ORGANIZATION/OU=$GROUP/CN=$HOST"
# 自定义信息
#============================================================================================
#此形式是自己给自己签发证书,自己就是CA机构,也可以交给第三方机构去签发
openssl genrsa -passout pass:$PASSWORD -aes256 -out /root/tls/pem/ca-key.pem 4096
# 2.用根证书RSA私钥生成自签名的根证书(营业执照)
openssl req -new -x509 -days 365 -passin pass:$PASSWORD -key /root/tls/pem/ca-key.pem -sha256 -subj $SUBJ -out /root/tls/pem/ca.pem
#============================================================================================
#给主机签发证书
# 1.服务端生成自己的私钥
openssl genrsa -out /root/tls/pem/server-key.pem 4096
# 2.服务端生成证书(里面包含公钥与服务端信息)
openssl req -new -sha256 -key /root/tls/pem/server-key.pem -out /root/tls/pem/server.csr -subj "/CN=$DOMAIN_HOST"
# 3.通过什么形式与我进行连接,可设置多个IP地扯用逗号分隔
echo subjectAltName=IP:x.x.x.x,IP:0.0.0.0 > /tmp/extfile.cnf
# 4.权威机构对证书进行进行盖章生效
openssl x509 -passin pass:$PASSWORD -req -days 365 -sha256 -in /root/tls/pem/server.csr -CA /root/tls/pem/ca.pem -CAkey /root/tls/pem/ca-key.pem -CAcreateserial -out /root/tls/pem/server-cert.pem -extfile /tmp/extfile.cnf
#============================================================================================
#给客户端签发证书
openssl genrsa -out /root/tls/pem/client-key.pem 4096
openssl req -subj '/CN=client' -new -key /root/tls/pem/client-key.pem -out /root/tls/pem/client.csr
echo extendedKeyUsage = clientAuth > /tmp/extfile.cnf
openssl x509 -passin pass:$PASSWORD -req -days 365 -sha256 -in /root/tls/pem/client.csr -CA /root/tls/pem/ca.pem -CAkey /root/tls/pem/ca-key.pem -CAcreateserial -out /root/tls/pem/client-cert.pem -extfile /tmp/extfile.cnf
#============================================================================================
# 清理文件
rm -rf /root/tls/pem/ca-key.pem
rm -rf /root/tls/pem/{server,client}.csr
rm -rf /root/tls/pem/ca.srl
# 最终文件
# ca.pem  ==  CA机构证书
# client-cert.pem  ==  客户端证书
# client-key.pem  ==  客户私钥
# server-cert.pem  == 服务端证书
# server-key.pem  ==  服务端私钥

$ vi /usr/lib/systemd/system/docker.service

$ systemctl daemon-reload
$ systemctl restart docker