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这篇文章主要介绍了Docker私有Registry如何在CentOS6.X下安装,具有一定借鉴价值,感兴趣的朋友可以参考下,希望大家阅读完这篇文章之后大有收获,下面让小编带着大家一起了解一下。
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说明:
docker.yy.com
这是docker registry服务器的域名也就是你的公司docker私有服务器的主机地址,假定ip是192.168.2.114
;因为https的SSL证书不能用IP地址,我就随便起了个名字。
registry
服务器作为上游服务器处理docker镜像的最终上传和下载,用的是官方的镜像。
nginx 1.4.x
是一个用nginx作为反向代理服务器
yum -y install gcc make file && \ yum -y install tar pcre-devel pcre-staticopenssl openssl-devel httpd-tools
/etc/hosts
,把docker.yy.com
的ip地址添加进来,例如:192.168.2.114 docker.yy.com
先把
/etc/pki/CA/cacert.pem
/etc/pki/CA/index.txt
/etc/pki/CA/index.txt.attr
/etc/pki/CA/index.txt.old
/etc/pki/CA/serial
/etc/pki/CA/serial.old
删除掉!
cd /etc/pki/CA/ openssl genrsa -out private/cakey.pem 2048
openssl req -new -x509 -key private/cakey.pem -out cacert.pem
输出:
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]:youyuan Organizational Unit Name (eg, section) []: Common Name (eg, your name or your server's hostname) []:docker.yy.com Email Address []:
会提示输入一些内容,因为是私有的,所以可以随便输入,最好记住能与后面保持一致,特别是"Common Name"。上面的自签证书cacert.pem应该生成在/etc/pki/CA下。
mkdir -p /etc/nginx/ssl cd /etc/nginx/ssl openssl genrsa -out nginx.key 2048
我们的CA中心与要申请证书的服务器是同一个,否则应该是在另一台需要用到证书的服务器上生成。
openssl req -new -key nginx.key -out nginx.csr
输出:
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]:youyuan Organizational Unit Name (eg, section) []: Common Name (eg, your name or your server's hostname) []:docker.yy.com Email Address []: Please enter the following 'extra' attributes to be sent with your certificate request A challenge password []: An optional company name []:
同样会提示输入一些内容,Commone Name一定要是你要授予证书的服务器域名或主机名,challenge password不填。
touch /etc/pki/CA/index.txt touch /etc/pki/CA/serial echo 00 > /etc/pki/CA/serial openssl ca -in nginx.csr -out nginx.crt
输出:
Using configuration from /etc/pki/tls/openssl.cnf Check that the request matches the signature Signature ok Certificate Details: Serial Number: 0 (0x0) Validity Not Before: Dec 9 09:59:20 2014 GMT Not After : Dec 9 09:59:20 2015 GMT Subject: countryName = CN stateOrProvinceName = beijing organizationName = youyuan commonName = docker.yy.com X509v3 extensions: X509v3 Basic Constraints: CA:FALSE Netscape Comment: OpenSSL Generated Certificate X509v3 Subject Key Identifier: 5D:6B:02:FF:9E:F8:EA:1B:73:19:47:39:4F:88:93:9F:E7:AC:A5:66 X509v3 Authority Key Identifier: keyid:46:DC:F1:A5:6F:39:EC:6E:77:03:3B:C4:34:03:7E:B8:0A:ED:99:41 Certificate is to be certified until Dec 9 09:59:20 2015 GMT (365 days) Sign the certificate? [y/n]:y 1 out of 1 certificate requests certified, commit? [y/n]y Write out database with 1 new entries Data Base Updated
同样会提示输入一些内容,选择
y
就可以了!
groupadd www -g 58 useradd -u 58 -g www www
cd /tmp wget http://nginx.org/download/nginx-1.4.6.tar.gz cp ./nginx-1.4.6.tar.gz /tmp/
tar zxvf ./nginx-1.4.6.tar.gz cd ./nginx-1.4.6 && \ ./configure --user=www --group=www --prefix=/opt/nginx \ --with-pcre \ --with-http_stub_status_module \ --with-http_ssl_module \ --with-http_addition_module \ --with-http_realip_module \ --with-http_flv_module && \ make && \ make install cd /tmp rm -rf /tmp/nginx-1.4.6/ rm /tmp/nginx-1.4.6.tar.gz
htpasswd -cb /opt/nginx/conf/.htpasswd ${USER} ${PASSWORD}
/opt/nginx/conf/nginx.conf
文件#daemon off; # 使用的用户和组 user www www; # 指定工作进程数(一般等于CPU总核数) worker_processes auto; # 指定错误日志的存放路径,错误日志记录级别选项为:[debug | info | notic | warn | error | crit] error_log /var/log/nginx_error.log error; #指定pid存放的路径 #pid logs/nginx.pid; # 指定文件描述符数量 worker_rlimit_nofile 51200; events { # 使用的网络I/O模型,Linux推荐epoll;FreeBSD推荐kqueue use epoll; # 允许的最大连接数 worker_connections 51200; multi_accept on; } http { include mime.types; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$upstream_addr"'; access_log /var/log/nginx_access.log main; # 服务器名称哈希表的桶大小,该默认值取决于CPU缓存 server_names_hash_bucket_size 128; # 客户端请求的Header头缓冲区大小 client_header_buffer_size 32k; large_client_header_buffers 4 32k; # 启用sendfile()函数 sendfile on; tcp_nopush on; tcp_nodelay on; keepalive_timeout 65; upstream registry { server 127.0.0.1:5000; } server { listen 443; server_name 192.168.2.114; ssl on; ssl_certificate /etc/nginx/ssl/nginx.crt; ssl_certificate_key /etc/nginx/ssl/nginx.key; client_max_body_size 0; # disable any limits to avoid HTTP 413 for large image uploads # required to avoid HTTP 411: see Issue #1486 (https://github.com/docker/docker/issues/1486) chunked_transfer_encoding on; location / { auth_basic "registry"; auth_basic_user_file /opt/nginx/conf/.htpasswd; 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; } } }
/opt/nginx/sbin/nginx -t
输出:
nginx: the configuration file /opt/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /opt/nginx/conf/nginx.conf test is successful
/opt/nginx/sbin/nginx
ps -ef | grep -i 'nginx'
如下输出就表明nginx一切正常!
root 27133 1 0 18:58 ? 00:00:00 nginx: master process /opt/nginx/sbin/nginx www 27134 27133 0 18:58 ? 00:00:00 nginx: worker process www 27135 27133 0 18:58 ? 00:00:00 nginx: worker process www 27136 27133 0 18:58 ? 00:00:00 nginx: worker process www 27137 27133 0 18:58 ? 00:00:00 nginx: worker process www 27138 27133 0 18:58 ? 00:00:00 nginx: worker process www 27139 27133 0 18:58 ? 00:00:00 nginx: worker process www 27140 27133 0 18:58 ? 00:00:00 nginx: worker process www 27141 27133 0 18:58 ? 00:00:00 nginx: worker process www 27142 27133 0 18:58 ? 00:00:00 nginx: worker process www 27143 27133 0 18:58 ? 00:00:00 nginx: worker process www 27144 27133 0 18:58 ? 00:00:00 nginx: worker process www 27145 27133 0 18:58 ? 00:00:00 nginx: worker process www 27146 27133 0 18:58 ? 00:00:00 nginx: worker process www 27147 27133 0 18:58 ? 00:00:00 nginx: worker process www 27148 27133 0 18:58 ? 00:00:00 nginx: worker process www 27149 27133 0 18:58 ? 00:00:00 nginx: worker process www 27150 27133 0 18:58 ? 00:00:00 nginx: worker process www 27151 27133 0 18:58 ? 00:00:00 nginx: worker process www 27152 27133 0 18:58 ? 00:00:00 nginx: worker process www 27153 27133 0 18:58 ? 00:00:00 nginx: worker process www 27154 27133 0 18:58 ? 00:00:00 nginx: worker process www 27155 27133 0 18:58 ? 00:00:00 nginx: worker process www 27156 27133 0 18:58 ? 00:00:00 nginx: worker process www 27157 27133 0 18:58 ? 00:00:00 nginx: worker process root 27160 42863 0 18:58 pts/0 00:00:00 grep -i nginx
service docker stop
/etc/sysconfig/docker
文件,加上如下一行DOCKER_OPTS="--insecure-registry docker.yy.com --tlsverify --tlscacert /etc/pki/CA/cacert.pem"
/etc/docker/certs.d/docker.yy.com/
目录下mkdir -p /etc/docker/certs.d/docker.yy.com/ cp /etc/pki/CA/cacert.pem /etc/docker/certs.d/docker.yy.com/ca-certificates.crt
service docker start
registry
imagedocker pull registry
mkdir -p /opt/registry docker run -d -e STORAGE_PATH=/registry -v /opt/registry:/registry -p 127.0.0.1:5000:5000 --name registry registry
命令稍加解释一下:
-p 127.0.0.1:5000:5000
registry 作为上游服务器,这个 5000 端口可以不用映射出来,因为所有的外部访问都是通过前端的nginx来提供,nginx 可以在私有网络访问 registry 。
用浏览器输入:
https://docker.yy.com
或者:curl -i -k https://abc:123@docker.yy.com
服务端的配置就到此完成!
/etc/hosts
,把docker.yy.com
的ip地址添加进来,例如:192.168.2.114 docker.yy.com
先从docker registry服务器端把文件/etc/pki/CA/cacert.pem
拷贝到本机,然后执行命令:
cat ./cacert.pem >> /etc/pki/tls/certs/ca-certificates.crt
docker.yy.com
下的registry:用浏览器输入:
https://docker.yy.com
或者:curl -i -k https://abc:123@docker.yy.com
登录: docker login -u abc -p 123 -e "test@gmail.com" https://docker.yy.com
给container起另外一个名字: docker tag centos:centos6 docker.yy.com/centos:centos6
发布: docker push docker.yy.com/centos:centos6
docker push centos:centos6
执行docker images
输出:
root@pts/0 # docker images REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE centos centos6 25c5298b1a36 8 days ago 215.8 MB
docker tag 25c5298b1a36 docker.yy.com/centos:centos6
docker push docker.yy.com/centos:centos6
docker images
输出:
root@pts/0 # docker images REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE centos centos6 25c5298b1a36 8 days ago 215.8 MB docker.yy.com/centos centos6 25c5298b1a36 8 days ago 215.8 MB
docker pull docker.yy.com/centos:centos6
docker images
输出:
root@pts/0 # docker images REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE docker.yy.com/centos centos6 25c5298b1a36 8 days ago 215.8 MB
/etc/sysconfig/docker
文件在DOCKER_OPTS
里添加-H tcp://0.0.0.0:4243 -H unix:///var/run/docker.sock
,例如:
DOCKER_OPTS="-H tcp://0.0.0.0:4243 -H unix:///var/run/docker.sock --insecure-registry docker.yy.com --tlsverify --tlscacert /etc/pki/CA/cacert.pem --registry-mirror=http://d194d5cb.m.daocloud.io"
docker run -it -d --name shipyard-rethinkdb-data --entrypoint /bin/bash shipyard/rethinkdb -l
docker run -it -P -d --name shipyard-rethinkdb --volumes-from shipyard-rethinkdb-data shipyard/rethinkdb
If your server is directly accessible on Internet,
please note your RethinkDB installation may publicly listen to
ports49153
(local instance),49154
(cluster) and49155
(web interface) and so accessible to all.
docker run -it -p 8080:8080 -d --name shipyard --link shipyard-rethinkdb:rethinkdb shipyard/shipyard
Shipyard will create a default user account with the username
admin
and the passwordshipyard
.
You should then be able to open a browser tohttp://
and see the Shipyard login.:8080
server端可以login到官方的Docker Hub,可以pull,push官方和私有仓库!
client端只能操作搭设好的私有仓库!
私有仓库不能search!
所有的build,pull,push操作只能在私有仓库的server端操作,降低企业风险!
docker login
到官方的https://index.docker.io/v1/
网站,出现x509: certificate signed by unknown authority
错误时重命名根证书!
mv /etc/pki/tls/certs/ca-certificates.crt /etc/pki/tls/certs/ca-certificates.crt.bak
重启docker服务!service docker restart
!
感谢你能够认真阅读完这篇文章,希望小编分享的“Docker私有Registry如何在CentOS6.X下安装”这篇文章对大家有帮助,同时也希望大家多多支持创新互联,关注创新互联行业资讯频道,更多相关知识等着你来学习!