1. The problem I’m having:
I’m using GitHub - dunglas/symfony-docker: A Docker-based installer and runtime for Symfony. Install: download and `docker compose up`., there is in this project a caddy container with classic ports 80 and 443.
My symfony app is working (I can access https://localhost/), but I need to add a new port, not linked to my symfony app, but used for the http://supervisord.org/ interface (usually port 9001).
I opened the port in my docker-compose file, but when I try to access http://localhost:9001 on my Chrome brower, I have a white page with error “ERR_CONNECTION_RESET”.
I I try a random port not opened, I have another error “ERR_CONNECTION_REFUSED”.
If I try to curl http://localhost:9001/ from my container it’s working, I can get the index.html page from the supervisor interface, but I cannot access it from the brower.
I dont know what I have to do or change from my docker compose file or CaddyFile for this to work. I need to have port 80 and 443 linked to my symfony project (/srv/app/public) and the port 9001 linked to nothing ?
Thanks you for your help, if you need more info please ask !
2. Error messages and/or full log output:
* docker ps Output (we can see the port 9001 is opened) :
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
d289fcb5a8b9 gu-market_caddy "caddy run --config …" 3 minutes ago Up 3 minutes 0.0.0.0:80->80/tcp, :::80->80/tcp, 0.0.0.0:443->443/tcp, :::443->443/tcp, 0.0.0.0:9001->9001/tcp, :::9001->9001/tcp, 0.0.0.0:443->443/udp, :::443->443/udp, 2019/tcp gu-market_caddy_1
7244028cb623 gu-market_php "docker-entrypoint /…" 3 minutes ago Up 3 minutes (healthy) 9000/tcp gu-market_php_1
0cf830cf94a8 postgres:15-alpine "docker-entrypoint.s…" 3 minutes ago Up 3 minutes 0.0.0.0:5432->5432/tcp, :::5432->5432/tcp gu-market_database_1
----
* If I check the port with netstat, I can see the port is opened
/srv/app # netstat -tulpen | grep 9001
tcp 0 0 0.0.0.0:9001 0.0.0.0:* LISTEN 134/python3
----
* If I try to curl http://localhost:9001 from my container, I can see the html from the interface, So inside the container it's working
/srv/app # curl http://localhost:9001
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>Supervisor Status</title>
<link href="stylesheets/supervisor.css" rel="stylesheet" type="text/css" />
<link href="images/icon.png" rel="icon" type="image/png" />
</head>
<body>
<div id="wrapper">
<div id="header">
<img alt="Supervisor status" src="images/supervisor.gif" />
</div>
3. Caddy version:
v2.6.4 h1:2hwYqiRwk1tf3VruhMpLcYTg+11fCdr8S3jhNAdnPy8=
4. How I installed and ran Caddy:
From the project GitHub - dunglas/symfony-docker: A Docker-based installer and runtime for Symfony. Install: download and `docker compose up`. using Docker
a. System environment:
Docker, and I’m on Ubuntu on my local.
c. Service/unit/compose file:
caddy:
build:
context: .
target: app_caddy
depends_on:
- php
environment:
SERVER_NAME: ${SERVER_NAME:-localhost, caddy:80}
MERCURE_PUBLISHER_JWT_KEY: ${CADDY_MERCURE_JWT_SECRET:-!ChangeThisMercureHubJWTSecretKey!}
MERCURE_SUBSCRIBER_JWT_KEY: ${CADDY_MERCURE_JWT_SECRET:-!ChangeThisMercureHubJWTSecretKey!}
restart: unless-stopped
volumes:
- php_socket:/var/run/php
- caddy_data:/data
- caddy_config:/config
ports:
# HTTP
- target: 80
published: ${HTTP_PORT:-80}
protocol: tcp
# HTTPS
- target: 443
published: ${HTTPS_PORT:-443}
protocol: tcp
# HTTP/3
- target: 443
published: ${HTTP3_PORT:-443}
protocol: udp
# Supervisor
- target: 9001
published: 9001
protocol: tcp
mode: host
d. My complete Caddy config:
{
# Debug
{$CADDY_DEBUG}
}
{$SERVER_NAME}
{$CADDY_EXTRA_CONFIG}
log
route {
root * /srv/app/public
mercure {
# Transport to use (default to Bolt)
transport_url {$MERCURE_TRANSPORT_URL:bolt:///data/mercure.db}
# Publisher JWT key
publisher_jwt {env.MERCURE_PUBLISHER_JWT_KEY} {env.MERCURE_PUBLISHER_JWT_ALG}
# Subscriber JWT key
subscriber_jwt {env.MERCURE_SUBSCRIBER_JWT_KEY} {env.MERCURE_SUBSCRIBER_JWT_ALG}
# Allow anonymous subscribers (double-check that it's what you want)
anonymous
# Enable the subscription API (double-check that it's what you want)
subscriptions
# Extra directives
{$MERCURE_EXTRA_DIRECTIVES}
}
vulcain
php_fastcgi unix//var/run/php/php-fpm.sock
encode zstd gzip
file_server
}