Docker开启TLS和CA认证的方法步骤

hostname

# !/bin/bash
# 一键生成TLS和CA证书
# Create : 2021-08-25
# Update : 2021-08-25
# @Autor : wuduoqiang
# 服务器主机名
SERVER="6c377ffb8e86"
# 密码
PASSWORD="2cx&BUjsV4u%3TW9"
# 国家
COUNTRY="CN"
# 省份
STATE="海南省"
# 城市
CITY="海口市"
# 机构名称
ORGANIZATION="小强崽公司"
# 机构单位
ORGANIZATIONAL_UNIT="小强崽单位"
# 邮箱
EMAIL="875667601@qq.com"
# 生成CA密钥
openssl genrsa -aes256 -passout pass:$PASSWORD  -out ca-key.pem 2048
# 生成CA证书
openssl req -new -x509 -passin "pass:$PASSWORD" -days 3650 -key ca-key.pem -sha256 -out ca-cert.pem -subj "/C=$COUNTRY/ST=$STATE/L=$CITY/O=$ORGANIZATION/OU=$ORGANIZATIONAL_UNIT/CN=$SERVER/emailAddress=$EMAIL"
# 生成服务端密钥
openssl genrsa -out server-key.pem 2048
# 生成服务端证书签名的请求文件
openssl req -subj "/CN=$SERVER" -new -key server-key.pem -out server-req.csr
# 生成服务端证书
openssl x509 -req -days 3650 -in server-req.csr -CA ca-cert.pem -CAkey ca-key.pem -passin "pass:$PASSWORD" -CAcreateserial -out server-cert.pem
# 生成客户端密钥
openssl genrsa -out client-key.pem 2048
# 生成客户端证书签名的请求文件
openssl req -subj '/CN=client' -new -key client-key.pem -out client-req.csr
# 生成客户端证书
sh -c 'echo "extendedKeyUsage=clientAuth" >> extfile.cnf'
openssl x509 -req -days 3650 -in client-req.csr -CA ca-cert.pem -CAkey ca-key.pem  -passin "pass:$PASSWORD" -CAcreateserial -out client-cert.pem -extfile extfile.cnf
# 更改密钥权限
chmod 0400 ca-key.pem server-key.pem client-key.pem
# 更改证书权限
chmod 0444 ca-cert.pem server-cert.pem client-cert.pem
# 删除无用文件
# rm ca-cert.srl client-req.csr server-req.csr extfile.cnf

ca.srl：CA签发证书的序列号记录文件
ca-cert.pem：CA证书
ca-key.pem：CA密钥
server-key.pem：服务端密钥
server-req.csr：服务端证书签名请求文件
server-cert.pem：服务端证书
client-key.pem：客户端密钥
extfile.cnf：客户端证书扩展配置文件
client-req.csr：客户端证书签名请求文件
client-cert.pem：客户端证书

# -subj /C=$COUNTRY/ST=$STATE/L=$CITY/O=$ORGANIZATION/OU=$ORGANIZATIONAL_UNIT/CN=$SERVER/emailAddress=$EMAIL
-subj 是 指定证书申请人的信息
C  是 Country Name
ST 是 State or Province Name
L  是 Locality Name
O  是 Organization Name
OU 是 Organizational Unit Name
CN 是 Common Name
emailAddress 是 Email Address

# 编辑文件
vim /etc/systemd/system/docker.service
# 修改内容,注意证书的指定位置
ExecStart=/usr/bin/dockerd \
--tlsverify \
--tlscacert=/etc/docker/ca-cert.pem \
--tlscert=/etc/docker/server-cert.pem \
--tlskey=/etc/docker/server-key.pem \
-H unix:///var/run/docker.sock \
-H tcp://0.0.0.0:2375
# 重启服务
systemctl daemon-reload && systemctl restart docker

docker -H 192.168.8.248:2375 images

docker -H 6c377ffb8e86:2375 images

curl https://192.168.8.248:2375/info --cert ./client-cert.pem --key ./client-key.pem --cacert ./ca-cert.pem

curl https://6c377ffb8e86:2375/info --cert ./client-cert.pem --key ./client-key.pem --cacert ./ca-cert.pem

version: '3'
services:
  jenkins:
    restart: always
    image: 192.168.8.247/xiaoqiangzai/jenkins:latest
    container_name: jenkins
    ports:
      - '8888:8080'
      - '50000:50000'
    volumes:
      - ./data/jenkins_home:/var/jenkins_home
      - ./data/war/jenkins.war:/usr/share/jenkins/jenkins.war
    environment:
      JENKINS_OPTS: "--prefix=/jenkins"
    extra_hosts:
      - "6c377ffb8e86:192.168.8.248"

version: '3'
services:
  portainer:
    restart: always
    image: portainer/portainer-ce:latest
    container_name: portainer
    privileged: true
    ports:
      - '9000:9000'
    volumes:
      - ./data/data:/data
      - ./data/public:/public
    extra_hosts:
      - "6c377ffb8e86:192.168.8.248"