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Cloudflare 代理 Docker 鏡像倉庫的兩種方式

云計(jì)算 云原生
雖然Cloudflare Workers為我們應(yīng)用提供了workers.dev 域名,但是該域名被墻,這里我們還需要自定義一個(gè)域名,我的lishuai.fun的域名就是在Cloudflare ,這里添加自定義域后Cloudflare 會幫我做dns解析以及證書。

前提條件:

1、一個(gè)cloudflare賬號

2、一個(gè)域名

使用 Cloudflare Workers 來部署我們的鏡像加速服務(wù),這里我的賬號是使用的免費(fèi)計(jì)劃,每天100,000次請求,個(gè)人用足夠了;

首先安裝 wrangler 命令行工具 https://developers.cloudflare.com/workers/cli-wrangler/install-update;

安裝后執(zhí)行 wrangler login 會自動跳轉(zhuǎn)到瀏覽器進(jìn)行身份驗(yàn)證,我們在頁面中選擇allow;

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方式一

安裝

這里使用hammal這個(gè)項(xiàng)目,首先將項(xiàng)目下載到本地;

git clone https://github.com/ImSingee/hammal.git
cd hammal
mv wrangler.toml.sample wrangler.toml

獲取 account_id id;

wrangler whoami

或者頁面上查看:

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#創(chuàng)建 KV namespace;

?  hammal-demo: wrangler kv:namespace create docker_cache
 ?? wrangler 3.59.0 (update available 3.60.1)
-------------------------------------------------------
?? Creating namespace with title "docker-proxy-docker_cache"
? Success!
Add the following to your configuration file in your kv_namespaces array:
{ binding = "docker_cache", id = "00fe55d37f61**********47bf" }

修改wrangler.toml文件;

name = "docker-proxy" //要?jiǎng)?chuàng)建的cloudflare worlers 應(yīng)用程序的名稱
account_id = "1492*********" //上一步查看到的account id
workers_dev = true
main = "./src/index.ts"
compatibility_date = "2021-12-07"
//將創(chuàng)建KV namespace 中的id 寫入下方,注意 binding = "HAMMAL_CACHE" 不需要修改
kv_namespaces = [
         { binding = "HAMMAL_CACHE", id = "00fe55d3*****95ac1063847bf" }
]

部署應(yīng)用

?  hammal-demo git:(main) ? wrangler deploy
 ?? wrangler 3.59.0 (update available 3.60.1)
-------------------------------------------------------
Total Upload: 5.59 KiB / gzip: 1.78 KiB
Your worker has access to the following bindings:
- KV Namespaces:
  - HAMMAL_CACHE: 00fe5*******1063847bf
Uploaded docker-proxy (1.05 sec)
Published docker-proxy (4.16 sec)
  https://docker-proxy.121324124.workers.dev
Current Deployment ID: 0794aebc-*****087e01014b44
Current Version ID: 0794aeb*******087e01014b44


Note: Deployment ID has been renamed to Version ID. Deployment ID is present to maintain compatibility with the previous behavior of this command. This output will change in a future version of Wrangler. To learn more visit: https://developers.cloudflare.com/workers/configuration/versions-and-deployments

部署后我們就可以在頁面上看到這個(gè)應(yīng)用了。

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添加自定義域名

雖然Cloudflare Workers為我們應(yīng)用提供了workers.dev 域名,但是該域名被墻,這里我們還需要自定義一個(gè)域名,我的lishuai.fun的域名就是在Cloudflare ,這里添加自定義域后Cloudflare  會幫我做dns解析以及證書。

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添加后如下:

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使用

直接使用

比如我們要下載busybox:1.30  這個(gè)鏡像,直接使用就是下載 proxy.lishuai.fun/busybox:1.30。

[root@dev-tools ~]# docker pull proxy.lishuai.fun/busybox:1.30
1.30: Pulling from busybox
53071b97a884: Pull complete 
Digest: sha256:4b6ad3a68d34da29bf7c8ccb5d355ba8b4babcad1f99798204e7abb43e54ee3d
Status: Downloaded newer image for proxy.lishuai.fun/busybox:1.30
proxy.lishuai.fun/busybox:1.30

作為 docker registry mirro使用

沒添加前我們pull nginx鏡像會報(bào)錯(cuò)。

[root@dev-tools ~]# docker pull nginx:1.20 
1.20: Pulling from library/nginx
214ca5fb9032: Pulling fs layer 
50836501937f: Pulling fs layer 
d838e0361e8e: Pulling fs layer 
fcc7a415e354: Waiting 
dc73b4533047: Waiting 
e8750203e985: Waiting 
error pulling image configuration: Get "https://production.cloudflare.docker.com/registry-v2/docker/registry/v2/blobs/sha256/05/0584b370e957bf9d09e10f424859a02ab0fda255103f75b3f8c7d410a4e96ed5/data?verify=1718097591-sHWoUPhk%2BwR4vjhRQiG7UTsSwLM%3D": read tcp 192.168.3.24:54228->104.16.98.215:443: read: connection reset by peer

配置registry mirror,創(chuàng)建/etc/docker/daemon.json 文件,并將下面內(nèi)容寫入文件;

cat  /etc/docker/daemon.json 
{
  "registry-mirrors": ["https://proxy.lishuai.fun"]
}

重啟docker;

systemctl  daemon-reload
systemctl restart docker

再次下載鏡像

[root@dev-tools ~]# docker pull nginx:1.20 
1.20: Pulling from library/nginx
214ca5fb9032: Pull complete 
50836501937f: Pull complete 
d838e0361e8e: Pull complete 
fcc7a415e354: Pull complete 
dc73b4533047: Pull complete 
e8750203e985: Pull complete 
Digest: sha256:38f8c1d9613f3f42e7969c3b1dd5c3277e635d4576713e6453c6193e66270a6d
Status: Downloaded newer image for nginx:1.20
docker.io/library/nginx:1.2

我們還可以查看訪問日志;

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獲取其他鏡像源鏡像

目前 hammal 支持獲取 k8s.gcr.io, gcr.io, quay.io 的鏡像,可以通過修改 handler.ts 中的 DEFAULT_BACKEND_HOST 添加;

方式二

安裝

使用cloudflare-docker-proxy 這個(gè)項(xiàng)目,這個(gè)項(xiàng)目可以一個(gè)服務(wù)代理多個(gè)鏡像倉庫,比如docker,k8s.gcr.io, gcr.io, quay.io;

git clone https://github.com/ciiiii/cloudflare-docker-proxy.git
 cd cloudflare-docker-proxy

配置代理倉庫

注意:這里將docker.libcuda.so 改為你自己的域名。

如果你只想代理dockerhub 修改為:

const routes = {
  "docker.libcuda.so": "https://registry-1.docker.io",
};

如果代理多個(gè)倉庫則修改為

const routes = {
  "docker.libcuda.so": "https://registry-1.docker.io",
  "quay.libcuda.so": "https://quay.io",
  "gcr.libcuda.so": "https://gcr.io",
  "k8s-gcr.libcuda.so": "https://k8s.gcr.io",
  "k8s.libcuda.so": "https://registry.k8s.io",
  "ghcr.libcuda.so": "https://ghcr.io",
  "cloudsmith.libcuda.so": "https://docker.cloudsmith.io",
};

如果想修改應(yīng)用程序名稱,則修改wrangler.toml 文件。

部署wrangler deploy

部署后還需要在應(yīng)用程序要添加自定義域名,如果代理多個(gè)倉庫這里就需要添加多個(gè);

這里我部署時(shí)候只代理了dockerhub ,這里也就添加一個(gè)域名,還是使用proxy-demo.lishuai.fun 這個(gè)域名,用來和方式一做區(qū)分;

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使用

直接使用

可以看到 通過proxy-demo.lishuai.fun/grafana/grafana:8.3.1 下載鏡像可以正常下載

[root@dev-tools ~]# ls /etc/docker/
key.json
[root@dev-tools ~]# docker pull  grafana/grafana:8.3.1
8.3.1: Pulling from grafana/grafana
97518928ae5f: Already exists 
a8f5f0c09c3c: Pulling fs layer 
9643e582a667: Pulling fs layer 
ad4af0290117: Pulling fs layer 
d096601a4afa: Waiting 
65e4610b9997: Waiting 
e64bd165f497: Waiting 
6f30ef190861: Waiting 
48ef5f0dbcfe: Waiting 
d095202b1b92: Waiting 
error pulling image configuration: Get "https://production.cloudflare.docker.com/registry-v2/docker/registry/v2/blobs/sha256/3b/3b1fc05e7c9aadd934d297ffe7804b61beb33a71b80c124c49f2a974a66e6ac5/data?verify=1718099366-5KAdXT8gn5AZ6gSj0I38FWgAOgc%3D": dial tcp 104.23.124.189:443: i/o timeout
[root@dev-tools ~]# docker pull  proxy-demo.lishuai.fun/grafana/grafana:8.3.1
8.3.1: Pulling from grafana/grafana
97518928ae5f: Already exists 
a8f5f0c09c3c: Pull complete 
9643e582a667: Pull complete 
ad4af0290117: Pull complete 
d096601a4afa: Pull complete 
65e4610b9997: Pull complete 
e64bd165f497: Pull complete 
6f30ef190861: Pull complete 
48ef5f0dbcfe: Pull complete 
d095202b1b92: Pull complete 
Digest: sha256:259b847ed7e3f58e6056438fd3bc353f48fbe9b77ed3b204ae619ba80e10aed9
Status: Downloaded newer image for proxy-demo.lishuai.fun/grafana/grafana:8.3.1
proxy-demo.lishuai.fun/grafana/grafana:8.3.1

作為 docker registry mirro使用

創(chuàng)建/etc/docker/daemon.json ,并重啟docker服務(wù);

[root@dev-tools ~]# cat /etc/docker/daemon.json
{
  "registry-mirrors": ["https://proxy-demo.lishuai.fun"]
}
[root@dev-tools ~]# systemctl daemon-reload 
[root@dev-tools ~]# systemctl  restart docker

直接下載 grafana/grafana:8.4.1的鏡像是可以成功下載的;

[root@dev-tools ~]# docker pull  grafana/grafana:8.4.1
8.4.1: Pulling from grafana/grafana
59bf1c3509f3: Already exists 
4164a319d242: Pull complete 
4a2f14a47a81: Pull complete 
dc89330ee24a: Pull complete 
380ee6bf29fe: Pull complete 
85f29e9b1e76: Pull complete 
b08bc2f18db4: Pull complete 
6e094f1959b8: Pull complete 
c2264af70d0b: Pull complete 
c4d0c131d223: Pull complete 
Digest: sha256:6dab2275e060b2fbb5dd9813e79b4aa3bde71aa6c8d340180a0bfa6c047605f2
Status: Downloaded newer image for grafana/grafana:8.4.1
docker.io/grafana/grafana:8.4.1

總結(jié)

兩種方式都很好,愛用哪種用哪種?。?!

責(zé)任編輯:武曉燕 來源: 云原生實(shí)踐者
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