File Not Found, Connection Refused PHP-FPM

1. Caddy version (caddy version): 2.4.5

2. How I run Caddy: Internal Web Application (dev.sf-console.listech.on.ca)

a. System environment: CentOS 8 → Docker

b. Command:

docker-compose up -d

c. Service/unit/compose file:

networks:
  web:
    external: true
  listech:
    external: true

services:
  caddy:
    image: caddy:2.4.5-alpine
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.dev-sf-console.rule=Host(`dev.sf-console.listech.on.ca`)"
      - "traefik.http.routers.dev-sf-console.entrypoints=web"
    volumes:
      - ./src:/var/www/html
      - ./caddy/data:/data
      - ./caddy/config:/config
      - ./caddy/Caddyfile:/etc/caddy/Caddyfile
    depends_on:
      - php
    networks:
      - web
      - default
      - listech

  php:
    image: lti-php-oci:7.4-fpm-alpine
    restart: unless-stopped
    user: "root:root"
    volumes:
      - ./src:/var/www/html
    networks:
      - default
      - listech

d. My complete Caddyfile or JSON config:

dev.sf-console.listech.on.ca:80 {
        root * /var/www/html
        php_fastcgi php:9000
        file_server
}

3. The problem I’m having: I am attempting to move a legacy application from our apache web server to our docker server using caddy. When accessing http://dev.sf-console.listech.on.ca/APPLICATION/shopfloor.php at random I get text reading “file not found”. When this page does load it has a heartbeat request which 404 (response in devtools is “file not found”) randomly as well.

sample curl request

curl -v http://dev.sf-console.listech.on.ca/APPLICATION/shopfloor.php
*   Trying 10.2.25.67:80...
* Connected to dev.sf-console.listech.on.ca (10.2.25.67) port 80 (#0)
> GET /APPLICATION/shopfloor.php HTTP/1.1
> Host: dev.sf-console.listech.on.ca
> User-Agent: curl/7.77.0
> Accept: */*
>
* Mark bundle as not supporting multiuse
< HTTP/1.1 404 Not Found
< Content-Length: 16
< Content-Type: text/html; charset=UTF-8
< Date: Thu, 07 Oct 2021 20:27:31 GMT
< Server: Caddy
< Status: 404 Not Found
< X-Powered-By: PHP/7.4.16
<
File not found.
* Connection #0 to host dev.sf-console.listech.on.ca left intact

4. Error messages and/or full log output:

caddy_1  | {"level":"debug","ts":1633638718.6520164,"logger":"http.handlers.reverse_proxy","msg":"upstream roundtrip","upstream":"php:9000","request":{"remote_addr":"172.18.0.2:43450","proto":"HTTP/1.1","method":"POST","host":"dev.sf-console.listech.on.ca","uri":"/APPLICATION/modules/footer/functions_ajax.php","headers":{"User-Agent":["Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:93.0) Gecko/20100101 Firefox/93.0"],"X-Forwarded-Host":["dev.sf-console.listech.on.ca"],"X-Real-Ip":["10.2.31.250"],"Accept-Encoding":["gzip, deflate"],"X-Forwarded-Port":["80"],"X-Forwarded-Proto":["http"],"Content-Length":["38"],"Content-Type":["application/x-www-form-urlencoded"],"Cookie":["PHPSESSID=874d919ca0f099f1e9e6d34524c9ba16"],"Origin":["http://dev.sf-console.listech.on.ca"],"X-Forwarded-For":["10.2.31.250, 172.18.0.2"],"X-Forwarded-Server":["a6446fd7b628"],"Accept-Language":["en-US,en;q=0.5"],"Referer":["http://dev.sf-console.listech.on.ca/APPLICATION/shopfloor.php?terminal=AY-1%20POS1"],"Accept":["*/*"]}},"headers":{"X-Powered-By":["PHP/7.4.16"],"Content-Type":["text/html; charset=UTF-8"],"Status":["404 Not Found"]},"status":404}
caddy_1  | {"level":"debug","ts":1633638719.4011023,"logger":"http.reverse_proxy.transport.fastcgi","msg":"roundtrip","request":{"remote_addr":"172.18.0.2:43450","proto":"HTTP/1.1","method":"GET","host":"dev.sf-console.listech.on.ca","uri":"/APPLICATION/shopfloor.php?terminal=AY-1%20POS1","headers":{"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8"],"Accept-Encoding":["gzip, deflate"],"Cache-Control":["max-age=0"],"Cookie":["PHPSESSID=874d919ca0f099f1e9e6d34524c9ba16"],"Upgrade-Insecure-Requests":["1"],"Accept-Language":["en-US,en;q=0.5"],"X-Real-Ip":["10.2.31.250"],"User-Agent":["Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:93.0) Gecko/20100101 Firefox/93.0"],"X-Forwarded-For":["10.2.31.250, 172.18.0.2"],"X-Forwarded-Host":["dev.sf-console.listech.on.ca"],"X-Forwarded-Port":["80"],"X-Forwarded-Proto":["http"],"X-Forwarded-Server":["a6446fd7b628"]}},"dial":"php:9000","env":{"AUTH_TYPE":"","CONTENT_LENGTH":"","CONTENT_TYPE":"","DOCUMENT_ROOT":"/var/www/html","DOCUMENT_URI":"/APPLICATION/shopfloor.php","GATEWAY_INTERFACE":"CGI/1.1","HTTP_ACCEPT":"text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8","HTTP_ACCEPT_ENCODING":"gzip, deflate","HTTP_ACCEPT_LANGUAGE":"en-US,en;q=0.5","HTTP_CACHE_CONTROL":"max-age=0","HTTP_COOKIE":"PHPSESSID=874d919ca0f099f1e9e6d34524c9ba16","HTTP_HOST":"dev.sf-console.listech.on.ca","HTTP_UPGRADE_INSECURE_REQUESTS":"1","HTTP_USER_AGENT":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:93.0) Gecko/20100101 Firefox/93.0","HTTP_X_FORWARDED_FOR":"10.2.31.250, 172.18.0.2","HTTP_X_FORWARDED_HOST":"dev.sf-console.listech.on.ca","HTTP_X_FORWARDED_PORT":"80","HTTP_X_FORWARDED_PROTO":"http","HTTP_X_FORWARDED_SERVER":"a6446fd7b628","HTTP_X_REAL_IP":"10.2.31.250","PATH_INFO":"","QUERY_STRING":"terminal=AY-1%20POS1","REMOTE_ADDR":"172.18.0.2","REMOTE_HOST":"172.18.0.2","REMOTE_IDENT":"","REMOTE_PORT":"43450","REMOTE_USER":"","REQUEST_METHOD":"GET","REQUEST_SCHEME":"http","REQUEST_URI":"/APPLICATION/shopfloor.php?terminal=AY-1%20POS1","SCRIPT_FILENAME":"/var/www/html/APPLICATION/shopfloor.php","SCRIPT_NAME":"/APPLICATION/shopfloor.php","SERVER_NAME":"dev.sf-console.listech.on.ca","SERVER_PROTOCOL":"HTTP/1.1","SERVER_SOFTWARE":"Caddy/v2.4.5"}}
caddy_1  | {"level":"debug","ts":1633638719.4066246,"logger":"http.handlers.reverse_proxy","msg":"upstream roundtrip","upstream":"php:9000","request":{"remote_addr":"172.18.0.2:43450","proto":"HTTP/1.1","method":"GET","host":"dev.sf-console.listech.on.ca","uri":"/APPLICATION/shopfloor.php?terminal=AY-1%20POS1","headers":{"User-Agent":["Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:93.0) Gecko/20100101 Firefox/93.0"],"X-Forwarded-For":["10.2.31.250, 172.18.0.2"],"X-Forwarded-Host":["dev.sf-console.listech.on.ca"],"X-Forwarded-Port":["80"],"X-Forwarded-Proto":["http"],"X-Forwarded-Server":["a6446fd7b628"],"X-Real-Ip":["10.2.31.250"],"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8"],"Accept-Encoding":["gzip, deflate"],"Cache-Control":["max-age=0"],"Cookie":["PHPSESSID=874d919ca0f099f1e9e6d34524c9ba16"],"Upgrade-Insecure-Requests":["1"],"Accept-Language":["en-US,en;q=0.5"]}},"headers":{"X-Powered-By":["PHP/7.4.16"],"Content-Type":["text/html; charset=UTF-8"],"Status":["404 Not Found"]},"status":404}

5. What I already tried:

defining root in Caddyfile. Not sure what else to try.

6. Links to relevant resources:

Well, it’s your PHP app that’s responding with a 404. You’ll need to debug why that’s the case.

If you’re coming from Apache, make sure there isn’t any special logic in .htaccess files that are necessary for your site to work. If there are, you may need to port them to Caddy, depending what they do.

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