docker 設置TLS遠程訪問

#docker TLS遠程訪問 ##生成證書

#建立ca-key.pem，須要輸入密碼，後面會用到
openssl genrsa -aes256 -out ca-key.pem 2048

openssl req -new -x509 -days 365 -key ca-key.pem -sha256 -out ca.pem
openssl genrsa -out server-key.pem 2048

#修改`$HOST`,建議設置爲本機IP地址。
openssl req -subj "/CN=$HOST" -new -key server-key.pem -out server.csr
#修改IP地址，
echo subjectAltName = IP:10.10.10.20,IP:127.0.0.1 > extfile.cnf

openssl x509 -req -days 365 -in server.csr -CA ca.pem -CAkey ca-key.pem -CAcreateserial -out server-cert.pem -extfile extfile.cnf
openssl genrsa -out key.pem 2048
openssl req -subj '/CN=client' -new -key key.pem -out client.csr
echo extendedKeyUsage = clientAuth > extfile.cnf
openssl x509 -req -days 365 -in client.csr -CA ca.pem -CAkey ca-key.pem -CAcreateserial -out cert.pem -extfile extfile.cnf

#刪除下面兩個文件
rm -v client.csr server.csr

#修改權限
chmod -v 0400 ca-key.pem key.pem server-key.pem
chmod -v 0444 ca.pem server-cert.pem cert.pem

##docker遠程訪問 ###修改/etc/default/docker文件，添加：

DOCKER_OPTS="--tlsverify -H=unix:///var/run/docker.sock -H=0.0.0.0:4243 --tlscacert=/root/key/ca.pem --tlscert=/root/key/server-cert.pem --tlskey=/root/key/server-key.pem"

###重啓docker

service docker restart

###遠程訪問：

docker --tlsverify --tlscacert=ca.pem --tlscert=cert.pem --tlskey=key.pem -H=$HOST:4243 docker命令

###curl訪問：

curl https://127.0.0.1:4243/images/json --cert /root/key/cert.pem --key /root/key/key.pem --cacert /root/key/ca.pem

###python模塊docker-py訪問：

#!/usr/bin/python
# -*- coding:utf-8 -*-
__author__ = 'Zhenhua Zhang'

import docker
import json

tls_config = docker.tls.TLSConfig(
   client_cert=('cert.pem','key.pem'),
   verify='ca.pem'
)
c = docker.Client(base_url='https://127.0.0.1:4243',version='1.19',timeout=10,tls=tls_config)
s = c.images()
print s[0]['Id']