Proxmox VE and Traefik Reverse Proxy

[scherepanov]

Hi guys!

I configured proxmox with traefik reverse proxy with enabled Lets Encrypt and almost work fine.

But some POST requests (VM start/stop/rest) returns 501 error. In access log of pve-proxy I see only this:

::ffff:127.0.0.1 - root@pam [14/07/2017:13:28:15 +0200] "GET /api2/json/nodes/dev/qemu/110/status/current HTTP/1.1" 200 248
::ffff:127.0.0.1 - root@pam [14/07/2017:13:28:16 +0200] "GET /api2/json/nodes/dev/qemu/110/pending HTTP/1.1" 200 621
::ffff:127.0.0.1 - - [14/07/2017:13:28:16 +0200] "POST /api2/extjs/nodes/dev/qemu/110/status/start HTTP/1.1" 501 -
::ffff:127.0.0.1 - root@pam [14/07/2017:13:28:16 +0200] "GET /api2/json/nodes/dev/qemu/110/status/current HTTP/1.1" 200 248

If I connected via 8006 port, all works. How I can get more info about the proxy errors?

 

[dcsapak]

does the journal say anything for this?

 

[scherepanov]

does the journal say anything for this?

In journalctl I see only traefik debug log

Here is output of journalctl -f

Jul 14 15:30:04 dev traefik[29473]: time="2017-07-14T15:30:04+02:00" level=debug msg="Round trip: https\://localhost:8006, code: 200, duration: 2.839487ms tls:version: 303, tls:resume:false, tls:csuite:c02f, tls:server:console.xxx.xxxxx"
Jul 14 15:30:07 dev traefik[29473]: time="2017-07-14T15:30:07+02:00" level=debug msg="Round trip: https\://localhost:8006, code: 200, duration: 2.636456ms tls:version: 303, tls:resume:false, tls:csuite:c02f, tls:server:console.xxx.xxxxx"
Jul 14 15:30:08 dev traefik[29473]: time="2017-07-14T15:30:08+02:00" level=debug msg="Round trip: https\://localhost:8006, code: 200, duration: 2.353228ms tls:version: 303, tls:resume:false, tls:csuite:c02f, tls:server:console.xxx.xxxxx"
Jul 14 15:30:10 dev traefik[29473]: time="2017-07-14T15:30:10+02:00" level=debug msg="Round trip: https\://localhost:8006, code: 200, duration: 3.280778ms tls:version: 303, tls:resume:false, tls:csuite:c02f, tls:server:console.xxx.xxxxx"
Jul 14 15:30:14 dev traefik[29473]: time="2017-07-14T15:30:14+02:00" level=debug msg="Round trip: https\://localhost:8006, code: 200, duration: 3.035886ms tls:version: 303, tls:resume:false, tls:csuite:c02f, tls:server:console.xxx.xxxxx"
Jul 14 15:30:17 dev traefik[29473]: time="2017-07-14T15:30:17+02:00" level=debug msg="Round trip: https\://localhost:8006, code: 200, duration: 3.499691ms tls:version: 303, tls:resume:false, tls:csuite:c02f, tls:server:console.xxx.xxxxx"
Jul 14 15:30:25 dev traefik[29473]: time="2017-07-14T15:30:25+02:00" level=debug msg="Round trip: https\://localhost:8006, code: 200, duration: 5.742967ms tls:version: 303, tls:resume:false, tls:csuite:c02f, tls:server:console.xxx.xxxxx"
Jul 14 15:30:37 dev traefik[29473]: time="2017-07-14T15:30:37+02:00" level=debug msg="Round trip: https\://localhost:8006, code: 200, duration: 5.177639ms tls:version: 303, tls:resume:false, tls:csuite:c02f, tls:server:console.xxx.xxxxx"
Jul 14 15:30:40 dev traefik[29473]: time="2017-07-14T15:30:40+02:00" level=debug msg="Round trip: https\://localhost:8006, code: 200, duration: 2.390707ms tls:version: 303, tls:resume:false, tls:csuite:c02f, tls:server:console.xxx.xxxxx"
Jul 14 15:30:40 dev traefik[29473]: time="2017-07-14T15:30:40+02:00" level=debug msg="Round trip: https\://localhost:8006, code: 501, duration: 1.023502ms tls:version: 303, tls:resume:false, tls:csuite:c02f, tls:server:console.xxx.xxxxx"

PS: Error present in proxmox 4 and still exists after update to version 5.

 

[scherepanov]

After investigation I came to a conclusion that the problem was on the traefik side, because all works fine on traefik v1.2.3 and broken in the next releases.

 

[Vassilis Kipouros]

Would you be kind enough to share your configuration files for this?

Thanx