Dont know why i get 502

[Mohammed90 (Mohammed Al Sahaf)]

Alright, so the 404 is coming from Portainer. What’s your Portainer configuration? Have you set the VIRTUAL_HOST var?

@Mooncore

{"level":"debug","ts":1752947621.4754343,"logger":"http.handlers.reverse_proxy","msg":"upstream roundtrip","upstream":"portainer:8000","duration":0.000840268,"request":{"remote_ip":"172.19.0.4","remote_port":"39282","client_ip":"172.19.0.4","proto":"HTTP/1.1","method":"GET","host":"hls.mooncore.online","uri":"/portainer","headers":{"Cf-Ray":["961c146a1d633294-WAW"],"Cf-Warp-Tag-Id":["09afab3e-a3ca-4aa1-913b-d474d30694ee"],"Sec-Fetch-Mode":["navigate"],"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"],"X-Forwarded-Host":["hls.mooncore.online"],"Dnt":["1"],"Sec-Fetch-User":["?1"],"X-Forwarded-For":["172.19.0.4"],"Accept-Encoding":["gzip, br"],"Cdn-Loop":["cloudflare; loops=1"],"Cf-Visitor":["{\"scheme\":\"https\"}"],"Sec-Gpc":["1"],"Accept-Language":["en-US,en;q=0.5"],"User-Agent":["Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.0"],"Priority":["u=0, i"],"X-Forwarded-Proto":["https"],"Cf-Ipcountry":["PL"],"Via":["1.1 Caddy"],"Cookie":["REDACTED"],"Sec-Fetch-Dest":["document"],"Upgrade-Insecure-Requests":["1"],"Sec-Fetch-Site":["none"],"Cf-Connecting-Ip":["37.190.179.101"]},"tls":{"resumed":false,"version":772,"cipher_suite":4867,"proto":"","server_name":"hls.mooncore.online"}},"headers":{"Date":["Sat, 19 Jul 2025 17:53:41 GMT"],"Content-Length":["9"],"Content-Type":["text/plain; charset=utf-8"]},"status":404}
{"level":"debug","ts":1752947622.1802983,"logger":"http.handlers.reverse_proxy","msg":"selected upstream","dial":"portainer:8000","total_upstreams":1}
{"level":"debug","ts":1752947622.1813881,"logger":"http.handlers.reverse_proxy","msg":"upstream roundtrip","upstream":"portainer:8000","duration":0.000844583,"request":{"remote_ip":"172.19.0.4","remote_port":"39282","client_ip":"172.19.0.4","proto":"HTTP/1.1","method":"GET","host":"hls.mooncore.online","uri":"/portainer","headers":{"Upgrade-Insecure-Requests":["1"],"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"],"Cf-Ray":["961c146e7f6f3294-WAW"],"Cookie":["REDACTED"],"Cf-Connecting-Ip":["37.190.179.101"],"Dnt":["1"],"Sec-Fetch-User":["?1"],"X-Forwarded-For":["172.19.0.4"],"X-Forwarded-Host":["hls.mooncore.online"],"Cdn-Loop":["cloudflare; loops=1"],"Sec-Fetch-Dest":["document"],"Accept-Language":["en-US,en;q=0.5"],"Accept-Encoding":["gzip, br"],"Cf-Ipcountry":["PL"],"Cf-Visitor":["{\"scheme\":\"https\"}"],"Sec-Fetch-Mode":["navigate"],"X-Forwarded-Proto":["https"],"User-Agent":["Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.0"],"Priority":["u=0, i"],"Via":["1.1 Caddy"],"Cf-Warp-Tag-Id":["09afab3e-a3ca-4aa1-913b-d474d30694ee"],"Sec-Fetch-Site":["none"],"Sec-Gpc":["1"]},"tls":{"resumed":false,"version":772,"cipher_suite":4867,"proto":"","server_name":"hls.mooncore.online"}},"headers":{"Date":["Sat, 19 Jul 2025 17:53:42 GMT"],"Content-Length":["9"],"Content-Type":["text/plain; charset=utf-8"]},"status":404}
{"level":"debug","ts":1752947637.8789194,"logger":"http.handlers.reverse_proxy","msg":"selected upstream","dial":"portainer:8000","total_upstreams":1}
{"level":"debug","ts":1752947637.8797169,"logger":"http.handlers.reverse_proxy","msg":"upstream roundtrip","upstream":"portainer:8000","duration":0.000639882,"request":{"remote_ip":"172.19.0.4","remote_port":"39282","client_ip":"172.19.0.4","proto":"HTTP/1.1","method":"GET","host":"hls.mooncore.online","uri":"/","headers":{"Cf-Ipcountry":["PL"],"X-Forwarded-For":["172.19.0.4"],"X-Forwarded-Host":["hls.mooncore.online"],"User-Agent":["curl/8.14.1"],"Accept-Encoding":["gzip, br"],"X-Forwarded-Proto":["https"],"Accept":["*/*"],"Cdn-Loop":["cloudflare; loops=1"],"Cf-Ray":["961c14d07ced3542-WAW"],"Cf-Visitor":["{\"scheme\":\"https\"}"],"Cf-Warp-Tag-Id":["09afab3e-a3ca-4aa1-913b-d474d30694ee"],"Via":["1.1 Caddy"],"Cf-Connecting-Ip":["37.190.179.101"]},"tls":{"resumed":false,"version":772,"cipher_suite":4867,"proto":"","server_name":"hls.mooncore.online"}},"headers":{"Date":["Sat, 19 Jul 2025 17:53:57 GMT"],"Content-Length":["9"],"Content-Type":["text/plain; charset=utf-8"]},"status":404}
{"level":"debug","ts":1752947640.7642026,"logger":"http.handlers.reverse_proxy","msg":"selected upstream","dial":"portainer:8000","total_upstreams":1}
{"level":"debug","ts":1752947640.7650208,"logger":"http.handlers.reverse_proxy","msg":"upstream roundtrip","upstream":"portainer:8000","duration":0.000656586,"request":{"remote_ip":"172.19.0.4","remote_port":"39282","client_ip":"172.19.0.4","proto":"HTTP/1.1","method":"GET","host":"hls.mooncore.online","uri":"/portainer/","headers":{"Accept-Encoding":["gzip, br"],"Cf-Ipcountry":["PL"],"Cf-Visitor":["{\"scheme\":\"https\"}"],"Cf-Warp-Tag-Id":["09afab3e-a3ca-4aa1-913b-d474d30694ee"],"Accept":["*/*"],"Cdn-Loop":["cloudflare; loops=1"],"X-Forwarded-Proto":["https"],"Cf-Connecting-Ip":["37.190.179.101"],"Via":["1.1 Caddy"],"User-Agent":["curl/8.14.1"],"Cf-Ray":["961c14e29d3b349a-WAW"],"X-Forwarded-For":["172.19.0.4"],"X-Forwarded-Host":["hls.mooncore.online"]},"tls":{"resumed":false,"version":772,"cipher_suite":4867,"proto":"","server_name":"hls.mooncore.online"}},"headers":{"Content-Type":["text/plain; charset=utf-8"],"Date":["Sat, 19 Jul 2025 17:54:00 GMT"],"Content-Length":["9"]},"status":404}
{"level":"debug","ts":1752947643.8350043,"logger":"http.handlers.reverse_proxy","msg":"selected upstream","dial":"portainer:8000","total_upstreams":1}
{"level":"debug","ts":1752947643.8358881,"logger":"http.handlers.reverse_proxy","msg":"upstream roundtrip","upstream":"portainer:8000","duration":0.000723936,"request":{"remote_ip":"172.19.0.4","remote_port":"39282","client_ip":"172.19.0.4","proto":"HTTP/1.1","method":"GET","host":"hls.mooncore.online","uri":"/portainer","headers":{"User-Agent":["curl/8.14.1"],"Cf-Ipcountry":["PL"],"Accept":["*/*"],"Cf-Visitor":["{\"scheme\":\"https\"}"],"X-Forwarded-For":["172.19.0.4"],"Cf-Warp-Tag-Id":["09afab3e-a3ca-4aa1-913b-d474d30694ee"],"X-Forwarded-Host":["hls.mooncore.online"],"Accept-Encoding":["gzip, br"],"Cdn-Loop":["cloudflare; loops=1"],"Cf-Connecting-Ip":["37.190.179.101"],"Via":["1.1 Caddy"],"Cf-Ray":["961c14f5bed2c3bb-WAW"],"X-Forwarded-Proto":["https"]},"tls":{"resumed":false,"version":772,"cipher_suite":4867,"proto":"","server_name":"hls.mooncore.online"}},"headers":{"Content-Type":["text/plain; charset=utf-8"],"Date":["Sat, 19 Jul 2025 17:54:03 GMT"],"Content-Length":["9"]},"status":404}

Also, does Portainer know it’s served on the subpath /portainer? This is crucial

The "subfolder problem", OR, "why can't I reverse proxy my app into a subfolder?"

Have you ever tried to reverse proxy an app into its own little subfolder of your domain name? Makes things neat, doesn’t it? Using example.com/foo/ for one app, example.com/bar/ for another. If you’re coming here from one of the selfhosted communities, you might be thinking along the lines of example.com/sonarr/, example.com/radarr/ etc. Chances are, you’ve tried some configuration along these lines: example.com { redir /sonarr /sonarr/ handle_path /sonarr/* { reverse_proxy localhost…