如何搭建Docker私有倉庫呢

我們為大家收集整理了關於如何搭建Docker私有倉庫，以方便大家參考。

1.Docker registry 說明

本文記錄的個人完整搭建docker registry操作過程，官方雖然提供了Docker Hub作為一個公開的集中倉庫，但是天朝的網絡可想而知，第一次pull一個鏡像不是失敗就是時間很長，為了解決這個問題需要創建一個私有的倉庫在本地pull 本地push。我使用的docker版本是:1.5.0

2、安裝docker-registry

代碼如下:

docker run -d -e SETTINGS_FLAVOR=dev -e STORAGE_PATH=/tmp/registry -v /alidata/registry:/tmp/registry -p 5000:5000 registry

# 如果本地沒有下載過docker-registry，則首次會pull registry 運行時會映射路徑和端口，以後就可以從/data/registry下找到私有倉庫

3、客戶端上的操作

#從本地倉庫上獲取有哪些鏡像

代碼如下:

curl -X GET http://registry.wpython.com:5000/v1/search

curl http://registry.wpython.com:5000/v1/search

{"num_results": 1, "query": "", "results": [{"description": "", "name": "library/centos6"}]}

# 拉取到本地

代碼如下:

docker pull library/centos6

# tag 一個鏡像

代碼如下:

docker tag 8552ea9a16f9 registry.wpython.com:5000/centos6_x86_64.mini

# 將新的docker images push 到本地倉庫

代碼如下:

docker push registry.wpython.com:5000/centos6_x86_64.mini

4、加入nginx認證

Docker 啟動監聽端口後，使用的是 http，可以遠程來管理 Docker 主機。

這樣的場景存在弊端，API 層面是沒有提供用戶驗證、Token 之類身份驗證功能，任何人都可以通過地址加端口來控制 Docker 主機，為了避免這樣的情況發生，Docker 官方也支持 https 方式，不過需要我們自己來生成證書。

新版本的docker 也強制必須使用https否則會報錯

# 安裝nginx過程略

創建一個登陸用戶(如果沒有htpasswd命令 請安裝httpd-tools這個包)

代碼如下:

htpasswd -c /alidata/server/nginx/docker-registry.htpasswd admin

New password:

Re-type new password:

Adding password for user admin

# 生成根密鑰

代碼如下:

cd /etc/pki/CA/

openssl genrsa -out private/cakey.pem 2048

# 生成根證書

代碼如下:

openssl req -new -x509 -key private/cakey.pem -out cacert.pem

Country Name (2 letter code) [AU]:CN

State or Province Name (full name) [Some-State]:Brijing

Locality Name (eg, city) []:Chaoyang

Organization Name (eg, company) [Internet Widgits Pty Ltd]:

Organizational Unit Name (eg, section) []:

Common Name (e.g. server FQDN or YOUR name) []:registry.wpython.com

Email Address []:

# 為nginx服務器生成ssl密鑰

代碼如下:

cd /alidata/server/nginx/ssl

openssl genrsa -out nginx.key 2048

# 為nginx生成的證書簽署請求

代碼如下:

openssl req -new -key nginx.key -out nginx.csr

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) [AU]:CN

State or Province Name (full name) [Some-State]:Beijing

Locality Name (eg, city) []:Chaoyang

Organization Name (eg, company) [Internet Widgits Pty Ltd]:

Organizational Unit Name (eg, section) []:

Common Name (e.g. server FQDN or YOUR name) []:registry.wpython.com

Email Address []:

Please enter the following 'extra' attributes

to be sent with your certificate request

A challenge password []:

An optional company name []:

# 私有CA根據請求來簽發證書

代碼如下:

openssl ca -in nginx.csr -out nginx.crt

# 如果報如下錯誤：

Using configuration from /usr/local/ssl/openssl.cnf

/etc/pki/CA/index.txt: No such file or directory

unable to open '/etc/pki/CA/index.txt'

140137408210600:error:02001002:system library:fopen:No such file or directory:bss_file.c:398:fopen('/etc/pki/CA/index.txt','r')

140137408210600:error:20074002:BIO routines:FILE_CTRL:system lib:bss_file.c:400:

# 執行以下命令

代碼如下:

cd /etc/pki/CA/

mkdir newcerts

touch index.txt

touch serial

echo 01 > serial

cd -

openssl ca -in nginx.csr -out nginx.crt

Using configuration from /usr/local/ssl/openssl.cnf

Check that the request matches the signature

Signature ok

Certificate Details:

Serial Number: 1 (0x1)

Validity

Not Before: May 12 04:15:08 2015 GMT

Not After : May 11 04:15:08 2016 GMT

Subject:

countryName = CN

stateOrProvinceName = Beijing

organizationName = Internet Widgits Pty Ltd

commonName = registry.wpython.com

emailAddress = [email protected]

X509v3 extensions:

X509v3 Basic Constraints:

CA:FALSE

Netscape Comment:

OpenSSL Generated Certificate

X509v3 Subject Key Identifier:

B5:20:C7:47:26:D9:26:54:12:F7:36:7E:4E:3A:F0:D9:0E:2C:F7:BD

X509v3 Authority Key Identifier:

keyid:93:F7:86:72:1B:2B:24:CD:AF:24:EF:53:F4:E1:FA:EC:E7:70:1A:90

Certificate is to be certified until May 11 04:15:08 2016 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

# 發現根證書

代碼如下:

# cp /etc/pki/tls/certs/ca-bundle.crt{,.bak} 備份以防出錯

# cat /etc/pki/CA/cacert.pem >> /etc/pki/tls/certs/ca-bundle.crt

# 創建nginx配置文件

代碼如下:

# vi /alidata/server/nginx/conf/vhosts/www.wpython.com.conf

upstream docker-registry {

server localhost:5000;

}

server {

listen 8080;

server_name registry.wpython.com;

# enabled ssl

ssl on;

ssl_certificate /alidata/server/nginx/ssl/nginx.crt;

ssl_certificate_key /alidata/server/nginx/ssl/nginx.key;

proxy_set_header Host $http_host;

proxy_set_header X-Real-IP $remote_addr;

client_max_body_size 0;

chunked_transfer_encoding on;

location / {

auth_basic "Restricted";

auth_basic_user_file docker-registry.htpasswd;

proxy_pass http://docker-registry;

}

location /_ping {

auth_basic off;

proxy_pass http://docker-registry;

}

location /v1/_ping {

auth_basic off;

proxy_pass http://docker-registry;

}

}

# 完成測試

代碼如下:

# docker login https://registry.wpython.com:8080

Username: admin

Password:

希望大家可以學會如何搭建Docker私有倉庫.想了解更多精彩內容，請關注我們的網站!

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