Same location with different proxy urls nginx

Question

We am trying to get nexus via nginx reverse proxy working as a private registry for docker images. We are able to perform all the operations such as pull,search and tag but not able to push to nexus registry .

Below is the nginx configuration under location block.

 location ~ ^/(v1|v2)/ { access_log /var/log/nginx/docker.log; proxy_set_header Host $http_host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto "https"; proxy_pass http://server908.int.org.com:5555; proxy_read_timeout 90; }

We are able to search and pull images.

x.x.x.x - admin [23/Jun/2017:14:31:20 +0800] "GET /v1/search?q=fedora&n=25 HTTP/1.1" 200 3733 "-" "docker/1.12.6 go/go1.7.4 kernel/3.10.0-514.10.2.el7.x86_64 os/linux arch/amd64 UpstreamClient(Docker-Client/1.12.6 \x5C(linux\x5C))"

x.x.x.x - admin [23/Jun/2017:14:31:39 +0800] "GET /v2/fedora/apache/manifests/latest HTTP/1.1" 200 1362 "-" "docker/1.12.6 go/go1.7.4 kernel/3.10.0-514.10.2.el7.x86_64 os/linux arch/amd64 UpstreamClient(Docker-Client/1.12.6 \x5C(linux\x5C))" x.x.x.x - admin [23/Jun/2017:14:31:40 +0800] "GET /v2/fedora/apache/manifests/sha256:8531786520bb57b155bbb39d3c670dceab554b9c4ccdb556ccfbe89b23df414c HTTP/1.1" 200 1362 "-" "docker/1.12.6 go/go1.7.4 kernel/3.10.0-514.10.2.el7.x86_64 os/linux arch/amd64 UpstreamClient(Docker-Client/1.12.6 \x5C(linux\x5C))" x.x.x.x - admin [23/Jun/2017:14:31:40 +0800] "GET /v2/fedora/apache/blobs/sha256:c786010769a8fc7975e72c2b78f902425a6387fb5dda8852b3be2849e979e290 HTTP/1.1" 200 4094 "-" "docker/1.12.6 go/go1.7.4 kernel/3.10.0-514.10.2.el7.x86_64 os/linux arch/amd64 UpstreamClient(Docker-Client/1.12.6 \x5C(linux\x5C))" x.x.x.x - admin [23/Jun/2017:14:31:40 +0800] "GET /v2/fedora/apache/blobs/sha256:4e81794d88f1b28cc1653df183400d08647143123a3f141fc8cab7cd97fc75e3 HTTP/1.1" 200 294 "-" "docker/1.12.6 go/go1.7.4 kernel/3.10.0-514.10.2.el7.x86_64 os/linux arch/amd64 UpstreamClient(Docker-Client/1.12.6 \x5C(linux\x5C))" x.x.x.x - admin [23/Jun/2017:14:31:40 +0800] "GET /v2/fedora/apache/blobs/sha256:40da690b349860b5b2cf7cee231c21a04f1461a77ee542b77a2345412f521ae0 HTTP/1.1" 200 183 "-" "docker/1.12.6 go/go1.7.4 kernel/3.10.0-514.10.2.el7.x86_64 os/linux arch/amd64 UpstreamClient(Docker-Client/1.12.6 \x5C(linux\x5C))" x.x.x.x - admin [23/Jun/2017:14:31:40 +0800] "GET /v2/fedora/apache/blobs/sha256:ebb42f0b0e1ad2d2ae815a6615b95bb59b925710df3db4b8fdb2f9fdaa14a806 HTTP/1.1" 200 294 "-" "docker/1.12.6 go/go1.7.4 kernel/3.10.0-514.10.2.el7.x86_64 os/linux arch/amd64 UpstreamClient(Docker-Client/1.12.6 \x5C(linux\x5C))" x.x.x.x - admin [23/Jun/2017:14:31:42 +0800] "GET /v2/fedora/apache/blobs/sha256:8eea4f8b1da3e8c0848778a69e4ee73ad474a7be35fcc5ce7784a0b64ce711a7 HTTP/1.1" 200 57816237 "-" "docker/1.12.6 go/go1.7.4 kernel/3.10.0-514.10.2.el7.x86_64 os/linux arch/amd64 UpstreamClient(Docker-Client/1.12.6 \x5C(linux\x5C))"

But with push we face below error.

x.x.x.x - admin [23/Jun/2017:14:32:34 +0800] "POST /v2/fedora/apache/blobs/uploads/?from=fedora%2Fssh&mount=sha256%3Aacd6cf67daf4cd1fcff55ece5a906a45e1569b81271b80136a1f5fecfa4546ed HTTP/1.1" 404 717 "-" "docker/1.12.6 go/go1.7.4 kernel/3.10.0-514.10.2.el7.x86_64 os/linux arch/amd64 UpstreamClient(Docker-Client/1.12.6 \x5C(linux\x5C))"

when we try with proxy _pass url as http://server908.int.org.com:4444, we are able to push but cant pull the images .

Is it possible in nginx to pass two different proxy_pass urls under the same location but for different request methods . Any help would be really great ..Thanks

Possible duplicate of Nginx proxy by Request Method

Drifter104
– Drifter104

2017-06-23 08:22:19 +00:00
Commented Jun 23, 2017 at 8:22 — Drifter104
– Drifter104, Commented Jun 23, 2017 at 8:22

P0pR0cK5 · Accepted Answer · 2017-06-23 09:08:46Z

With Nginx you can catch the method used in the request.

So you just have to make some adjustements for redirect on the right proxy.

location /blabla { if ($request_method = POST ) { # Proxy for POST } if ($request_method = GET ) { # Proxy for GET }

Thanks . Your solution helped me in getting it to work with minor tweaks . I have mentioned it in my answer — Alim
– Alim, Commented Jun 29, 2017 at 7:05

Alim · Accepted Answer · 2017-06-29 07:06:45Z

Its working now with below location configuration.

location / { access_log /var/log/nginx/docker.log; proxy_set_header Host $http_host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; if ($request_method !~* GET) { proxy_pass http://server908.int.org.com:4444; } if ($request_method = GET) { proxy_pass http://server908.int.org.com:5555; } proxy_read_timeout 90; }

Thanks for your help

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