一键配置安全的Docker远程连接脚本
#!/bin/bash # # Created by L.STONE <[email protected]> # Mod By Ryan.L <[email protected]> # ------------------------------------------------------------- # 自动创建 Docker TLS 证书 # ------------------------------------------------------------- # 以下是配置信息 # Config start IP="<your vps ip>" PASSWORD="123456" COUNTRY="CN" STATE="Beijing" CITY="" ORGANIZATION="iPlayLoli" ORGANIZATIONAL_UNIT="Dev" COMMON_NAME="$IP" EMAIL="[email protected]" # Config end # 工作目录 mkdir -p /etc/docker ~/.docker cd ~/.docker # 停止 docker service docker stop # 生成 CA 密钥 if [[ ! -f ca-key.pem ]]; then echo " - 生成 CA 密钥" openssl genrsa -aes256 -passout "pass:$PASSWORD" -out "ca-key.pem" 4096 fi # 生成 CA if [[ ! -f ca.pem ]]; then echo " - 生成 CA" openssl req -new -x509 -days 365 -key "ca-key.pem" -sha256 -out "ca.pem" -passin "pass:$PASSWORD" -subj "/C=$COUNTRY/ST=$STATE/L=$CITY/O=$ORGANIZATION/OU=$ORGANIZATIONAL_UNIT/CN=$COMMON_NAME/emailAddress=$EMAIL" fi # 生成服务器密钥 & 服务器证书 if [[ ! -f server-key.pem ]]; then echo " - 生成服务器密钥" openssl genrsa -out "server-key.pem" 4096 fi if [[ ! -f server.csr ]]; then openssl req -subj "/CN=$COMMON_NAME" -sha256 -new -key "server-key.pem" -out server.csr fi if [[ ! -f server-cert.pem ]]; then echo " - 生成服务器证书" echo "subjectAltName = IP:$IP,IP:127.0.0.1" >> extfile.cnf echo "extendedKeyUsage = serverAuth" >> extfile.cnf openssl x509 -req -days 365 -sha256 -in server.csr -passin "pass:$PASSWORD" -CA "ca.pem" -CAkey "ca-key.pem" -CAcreateserial -out "server-cert.pem" -extfile extfile.cnf fi rm -f extfile.cnf # 生成客户端证书 if [[ ! -f key.pem ]]; then openssl genrsa -out "key.pem" 4096 fi if [[ ! -f cert.pem ]]; then openssl req -subj '/CN=client' -new -key "key.pem" -out client.csr echo extendedKeyUsage = clientAuth >> extfile.cnf openssl x509 -req -days 365 -sha256 -in client.csr -passin "pass:$PASSWORD" -CA "ca.pem" -CAkey "ca-key.pem" -CAcreateserial -out "cert.pem" -extfile extfile.cnf fi chmod -v 0400 "ca-key.pem" "key.pem" "server-key.pem" chmod -v 0444 "ca.pem" "server-cert.pem" "cert.pem" # 打包客户端证书 echo " - 打包客户端证书为 tls-client-certs.tar.gz" mkdir -p "tls-client-certs" cp -f "ca.pem" "cert.pem" "key.pem" "tls-client-certs/" cd "tls-client-certs" tar zcf "tls-client-certs.tar.gz" * mv "tls-client-certs.tar.gz" ../ cd .. rm -rf "tls-client-certs" # 拷贝服务端证书 mkdir -p /etc/docker/certs.d cp -f "ca.pem" "server-cert.pem" "server-key.pem" /etc/docker/certs.d/ echo " - 修改 /etc/docker/daemon.json 文件" if [[ -f /etc/docker/daemon.json ]]; then grep "/etc/docker/certs.d/server-key.pem" /etc/docker/daemon.json > /dev/null if [[ ! $? -eq 0 ]]; then cat >/etc/docker/daemon.json<<EOF { "tlsverify": true, "tlscacert": "/etc/docker/certs.d/ca.pem", "tlscert": "/etc/docker/certs.d/server-cert.pem", "tlskey": "/etc/docker/certs.d/server-key.pem", "hosts": ["tcp://0.0.0.0:2376", "unix:///var/run/docker.sock"] } EOF fi else cat >/etc/docker/daemon.json<<EOF { "tlsverify": true, "tlscacert": "/etc/docker/certs.d/ca.pem", "tlscert": "/etc/docker/certs.d/server-cert.pem", "tlskey": "/etc/docker/certs.d/server-key.pem", "hosts": ["tcp://0.0.0.0:2376", "unix:///var/run/docker.sock"] } EOF fi # 覆盖启动参数，解决 docker 启动失败 if [[ ! -z $(command -v systemctl) ]];then mkdir -p /etc/systemd/system/docker.service.d if [[ ! -f /etc/systemd/system/docker.service.d/override.conf ]]; then cat >/etc/systemd/system/docker.service.d/override.conf<<EOF [Service] ExecStart= ExecStart=/usr/bin/dockerd EOF systemctl daemon-reload fi fi # 清理 rm -vf client.csr server.csr extfile.cnf ca.srl server-cert.pem server-key.pem cert.pem # 启动 docker service docker start # 客户端远程连接 echo "Connect to server via docker-cli:" echo "docker -H $IP:2376 --tlsverify --tlscacert ~/.docker/ca.pem --tlscert ~/.docker/cert.pem --tlskey ~/.docker/key.pem ps -a" # 客户端使用 cURL 连接 echo "Connect to server via curl:" echo "curl --cacert ~/.docker/ca.pem --cert ~/.docker/cert.pem --key ~/.docker/key.pem https://$IP:2376/containers/json" echo -e "\e[1;32mAll be done.\e[0m" [root@VM-0-7-centos ~]# tee /etc/docker/daemon.json <<-'EOF' > { > "registry-mirrors": ["https://ff07df3q.mirror.aliyuncs.com"] > } > EOF { "registry-mirrors": ["https://ff07df3q.mirror.aliyuncs.com"] } [root@VM-0-7-centos ~]# systemctl daemon-reload [root@VM-0-7-centos ~]# systemctl restart docker [root@VM-0-7-centos ~]# ls get-docker.sh [root@VM-0-7-centos ~]# vim #!/bin/bash [root@VM-0-7-centos ~]# vim gen.sh [root@VM-0-7-centos ~]# chmod +x gen.sh [root@VM-0-7-centos ~]# ./gen.sh Redirecting to /bin/systemctl stop docker.service Warning: Stopping docker.service, but it can still be activated by: docker.socket - 生成 CA 密钥 Generating RSA private key, 4096 bit long modulus .....................................................................................................................................................................++ ..................................................++ e is 65537 (0x10001) - 生成 CA No value provided for Subject Attribute L, skipped - 生成服务器密钥 Generating RSA private key, 4096 bit long modulus ...........++ .........................................................................................++ e is 65537 (0x10001) - 生成服务器证书 Signature ok subject=/CN=129.28.194.191 Getting CA Private Key Generating RSA private key, 4096 bit long modulus ...++ ................................................................................................++ e is 65537 (0x10001) Signature ok subject=/CN=client Getting CA Private Key mode of ‘ca-key.pem’ changed from 0644 (rw-r--r--) to 0400 (r--------) mode of ‘key.pem’ changed from 0644 (rw-r--r--) to 0400 (r--------) mode of ‘server-key.pem’ changed from 0644 (rw-r--r--) to 0400 (r--------) mode of ‘ca.pem’ changed from 0644 (rw-r--r--) to 0444 (r--r--r--) mode of ‘server-cert.pem’ changed from 0644 (rw-r--r--) to 0444 (r--r--r--) mode of ‘cert.pem’ changed from 0644 (rw-r--r--) to 0444 (r--r--r--) - 打包客户端证书为 tls-client-certs.tar.gz - 修改 /etc/docker/daemon.json 文件 removed ‘client.csr’ removed ‘server.csr’ removed ‘extfile.cnf’ removed ‘ca.srl’ removed ‘server-cert.pem’ removed ‘server-key.pem’ removed ‘cert.pem’ Redirecting to /bin/systemctl start docker.service Connect to server via docker-cli: docker -H <your vps ip>:2376 --tlsverify --tlscacert ~/.docker/ca.pem --tlscert ~/.docker/cert.pem --tlskey ~/.docker/key.pem ps -a Connect to server via curl: curl --cacert ~/.docker/ca.pem --cert ~/.docker/cert.pem --key ~/.docker/key.pem https://<your vps ip>:2376/containers/json
生成的证书位于 ~/.docker/tls-client-certs.tar.gz下,通过 rsync 取回
rsync -avv 47:/root/.docker/tls-client-certs.tar.gz /Users/pan/cert
通过证书控制远程docker
docker -H your-vps-ip:2376 --tlsverify --tlscacert ./ca.pem --tlscert ./cert.pem --tlskey ./key.pem ps -a