docker registry v2 nginx

2eew

一 环境

俩台centos 7 64位

Docker 版本

Client:

Version:      1.8.2

API version:  1.20

Package Version: docker-1.8.2-7.el7.centos.x86_64

Go version:   go1.4.2

Git commit:   bb472f0/1.8.2

Built:        

OS/Arch:      linux/amd64

Server:

Version:      1.8.2

API version:  1.20

Package Version:

Go version:   go1.4.2

Git commit:   bb472f0/1.8.2

Built:        

OS/Arch:      linux/amd64

Register V2.0

Register server 镜像服务器 192.168.33.75

Register client 测试镜像docker服务器 192.168.153.86

二 搭建过程

在Register server 上（192.168.33.75）

2.1 安装需要的软件

yum install gcc make pcre-devel pcre openssl-devel httpd-tools -y

其中  pcre-devel pcre 是在nginx需要的用的软件包

Openssl-devel 是制作key的时候需要用的软件包

Httpd-tools 是生成nginx用户密码需要用的软件包

2.2 更改hosts,添加

[iyunv@localhost ~]# vim /etc/hosts

192.168.33.75 dockertest.xxxx.com

2.3 生成根密钥

先看下/etc/pki/CA 下有没有

Cacert.pem index.txt index.txt.attr index.txt.old serial serial.old

有的话全部删除，然后

[iyunv@localhost ~]# cd /etc/pki/CA/

生成根密钥

[iyunv@localhost ~]#openssl genrsa -out private/cakey.pem 2048
生成根证书
openssl req -new -x509 -key private/cakey.pem -out cacert.pem
输出，其中最主要的是红色表明的
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [XX]:CN
State or Province Name (full name) []:beijing
Locality Name (eg, city) [Default City]:beijing
Organization Name (eg, company) [Default Company Ltd]:beijing
Organizational Unit Name (eg, section) []:beijing
Common Name (eg, your name or your server's hostname) []:dockertest.xxxx.com
Email Address []:abcd@qq.com
其中CN一定要写自己的私有镜像库的域名
Email要记住，后面要用到
上面的自签证书cacert.pem在/etc/pki/CA/目录下
2.4 为nginx web服务器生成ssl密钥
[iyunv@localhost CA]# mkdir /usr/local/nginx/ssl
[iyunv@localhost CA]# cd /usr/local/nginx/ssl
[iyunv@localhost CA]# openssl genrsa -out nginx.key 2048
为nginx生成证书签署请求
[iyunv@localhost CA]# openssl req -new -key nginx.key -out nginx.csr
输出，其中最主要的是红色表明的
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [XX]:CN
State or Province Name (full name) []:beijing
Locality Name (eg, city) [Default City]:beijing
Organization Name (eg, company) [Default Company Ltd]:beijing
Organizational Unit Name (eg, section) []:beijing
Common Name (eg, your name or your server's hostname) []:dockertest.xxxx.com
Email Address []:abcd@qq.com
A challenge password []:
An optional company name []:
其中Common Name 和email要和上面的一样，challenge password不填
私有CA根据请求来签发证书
[iyunv@localhost CA]# touch /etc/pki/CA/index.txt
[iyunv@localhost CA]# touch /etc/pki/CA/serial
[iyunv@localhost CA]# echo 00 > /etc/pki/CA/serial
[iyunv@localhost CA]#openssl ca -in nginx.csr -out nginx.crt
Using configuration from /etc/pki/tls/openssl.cnf
Check that the request matches the signature
Signature ok
Certificate Details:
        Serial Number: 1 (0x1)
        Validity
            Not Before: Jan 11 06:04:22 2016 GMT
            Not After : Jan 10 06:04:22 2017 GMT
        Subject:
            countryName               = CN
            stateOrProvinceName       = beijing
            organizationName          = beijing
            organizationalUnitName    = beijing
            commonName                = dockertest.hc360.org
            emailAddress              = 122727569@qq.com
        X509v3 extensions:
            X509v3 Basic Constraints:
                CA:FALSE
            Netscape Comment:
                OpenSSL Generated Certificate
            X509v3 Subject Key Identifier:
                80:2C:A4:5D:55:92:2E:E0:38:26:9A:A0:F2:7E:29:6A:24:3D:FE:DF
            X509v3 Authority Key Identifier:
                keyid:60:BE:EA:F3:43:79:DC:46:D3:A2:00:2A:2E:8A:D6:10:93:5C:54:59

Certificate is to be certified until Jan 10 06:04:22 2017 GMT (365 days)
Sign the certificate? [y/n]:y
直接输入y，确认就好了。
三 安装配置nginx
3.1 安装nginx
Nginx 版本必须大于1.7.5，我使用的是1.8的
[iyunv@localhost CA]# tar zxvf nginx-1.8.0.tar.gz
cd nginx-1.8.0
mkdir /usr/local/nginx
./configure --prefix=/usr/local/nginx  --with-http_ssl_module --with-http_stub_status_module  --with-pcre  --with-http_addition_module --with-http_realip_module  --with-http_flv_module
make && make install
3.2 生成htpasswd
[iyunv@localhost]# htpasswd -cb /usr/local/nginx/conf/.htpasswd admin admin
生成的用户名和密码都是admin，到时登录私有仓库的时候用。
3.3 配置nginx
[iyunv@localhost]# cd /usr/local/nginx/conf/
[iyunv@localhost]# cp nginx.conf nginx.conf.bak
[iyunv@localhost]#  vim nginx.conf
user  root root;
worker_processes  auto;

error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

pid        logs/nginx.pid;

worker_rlimit_nofile 51200;
events {
    use epoll;
    worker_connections  51200;
    multi_accept on;
}
http {
    include       mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  logs/access.log  main;

    server_names_hash_bucket_size 128;

    client_header_buffer_size 32k;

    large_client_header_buffers 4 32k;

    sendfile        on;
    tcp_nopush     on;
    tcp_nodelay    on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;
    upstream registry {
server 127.0.0.1:5000;
}
server {
        listen       443;
        server_name  192.168.33.75;
add_header Docker-Distribution-Api-Version registry/2.0 always;
sslon;
ssl_certificate /usr/local/nginx/ssl/nginx.crt; #crt的位置
    ssl_certificate_key /usr/local/nginx/ssl/nginx.key; #key的位置
client_max_body_size 0;
chunked_transfer_encoding on;
location / {
      auth_basic "registry";
      auth_basic_user_file /usr/local/nginx/conf/.htpasswd; #htpasswd的位置

      root   html;
      index  index.html index.htm;

      proxy_pass                  http://registry;
      #proxy_set_header  Host           $http_host;
      proxy_set_header  X-Real-IP      $remote_addr;
      proxy_set_header  Authorization  "";

      client_body_buffer_size     128k;
      proxy_connect_timeout       90;
      proxy_send_timeout          90;
      proxy_read_timeout          90;
      proxy_buffer_size           8k;
      proxy_buffers               4 32k;
      proxy_busy_buffers_size     64k;  #如果系统很忙的时候可以申请更大的proxy_buffers 官方推荐*2
      proxy_temp_file_write_size  64k;  #proxy缓存临时文件的大小
    }
location /_ping {
      auth_basic off;
       proxy_pass http://registry;
    }
location /v1/_ping {
      auth_basic off;
      proxy_pass http://registry;
    }
    }

}
其中红色标明的地方一定要注意
如果不添加add_header Docker-Distribution-Api-Version registry/2.0 always;
无法用https访问私有仓库
如果不注解掉
#proxy_set_header  Host           $http_host;
这个的话，私有仓库可以用https登录，但是push的时候会报错，
The push refers to a repository [dockertest.hc360.org/ubuntu_v1] (len: 1)
af88597ec24b: Pushing
dial tcp 192.168.33.75:80: connection refused
不注解的话它连接的是真实ip地址，无法代理
这个具体含义，大家查下nginx 反向代理 proxy_set_header
3.4验证配置
[iyunv@localhost ~]# /usr/local/nginx/sbin/nginx -t
如果没有错误的话，启动nginx
[iyunv@localhost ~]# /usr/local/nginx/sbin/nginx
四 搭建docker registry V2
4.1 更改docker配置文件
[iyunv@localhost ~]# systemctl stop docker
[iyunv@localhost ~]# vim /etc/sysconfig/docker
OPTIONS='--selinux-enabled --insecure-registry dockertest.xxxx.com'
更改成这样，添加--insecure-registry dockertest.xxxx.com 红色的是私有仓库的域名，更前面生成密钥时候的域名对应
配置密钥文件
Mkdir -p /etc/docker/certs.d/hc.docker.io
Cp /etc/pki/CA/cacert.pem ./hc.docker.io/ca-certificates.crt
cat /etc/pki/CA/cacert.pem  >> /etc/pki/tls/certs/ca-bundle.crt
[iyunv@localhost ~]#systemctl restart docker
[iyunv@localhost ~]#vim config.yml
version: 0.1
log:
    level: debug
    formatter: text
    fields:
        service: registry
        environment: staging
storage:
    delete:
        enabled: true
    cache:
        layerinfo: inmemory
    filesystem:
        rootdirectory: /var/lib/registry
http:
    addr: :5000
    secret: admin
[iyunv@localhost ~]#mkdir data
docker run -d -p 5000:5000 --restart=always --name registry -v `pwd`/config.yml:/etc/docker/registry/config.yml -v `pwd`/data:/var/lib/registry registry:2
4.2 验证
[iyunv@localhost ~]# curl https://admin:admin@dockertest.xxxx.com/v2/
结果返回{}
登录
[iyunv@localhost ~]docker login https://dockertest.xxxx.com
Username: admin
Password:        #admin
Email: abcd@qq.com
WARNING: login credentials saved in /root/.docker/config.json
Login Succeeded
4.3 验证push镜像到私有仓库
在登录的前题下，本机验证
[iyunv@localhost ~]# docker pull centos
[iyunv@localhost ~]# docker images
daocloud.io/centos                       latest              60e65a8e4030        2 weeks ago         196.6 MB
[iyunv@localhost ~]# docker tag 60e65a8e4030 dockertest.hc360.org/centos_test_v12
[iyunv@localhost ~]# docker push dockertest.xxxx.com/centos_test_v12
The push refers to a repository [dockertest.xxxx.com/centos_test_v12] (len: 1)
60e65a8e4030: Pushed
60e65a8e4030: Preparing
838c1c5c4f83: Pushed
838c1c5c4f83: Preparing
latest: digest: sha256:3019f69254dcceb22a65859a3a414386ffbdd2908afba1b39e73220845c6cec8 size: 7228
查看push结果
[iyunv@localhost ~]# curl  https://admin:admin@dockertest.hc360.org/v2/_catalog
{"repositories":["centos_test_v12"]}
五 在client端测试
5.1 配置密钥
[iyunv@localhost ~]#scp /etc/pki/CA/cacert.pem root@192.168.153.86:/root/
在192.168.153.86这台服务器上
[iyunv@docker-minion2 ~]# cat /root/cacert.pem >> /etc/pki/tls/certs/ca-bundle.crt
[iyunv@docker-minion2 ~]#vim /etc/sysconfig/docker
OPTIONS='--selinux-enabled --insecure-registry dockertest.xxxx.com'
[iyunv@docker-minion2 ~]# systemctl restart docker
最好重启下服务器吧，我第一次更改完无法登录。重启后可以登录了，可能是没有加载密钥
[iyunv@docker-minion2 ~]# docker login https://dockertest.hc360.org
Username: admin
Password:
Email: 122727569@qq.com
WARNING: login credentials saved in /root/.docker/config.json
Login Succeeded
5.2 验证
和上面验证方法一样
能登录上传基本没有什么问题