Setup Centrifugo server with apache virtual host and ssl - nginx

Question

I know most people do it backwards (apache to nginx), but the server where this project is hosted has other projects with particular configurations so... it's better to stick with what we have
What I'm trying to accomnplish is migrate an nginx virtual host configuration, for the centrifugo golang messaging server, to apache2.4 from the docs example
This is what I have
#### This part it's commented because the server says it has incorrect syntax
# <Proxy "balancer://centrifugocluster"> {
# Enumerate all upstream servers here, in case you want to clusterize
# BalancerMember http://127.0.0.1:8000 # default host and port, change it if need it
# BalancerMember http://127.0.0.1:8001;
# </Proxy>
# ProxyPass / balancer://centrifugocluster/
<VirtualHost *:80>
ServerName centrifugo.MY_HOSTING.com
Redirect permanent ^(.*) https://centrifugo.MY_HOSTING.com/$1
</VirtualHost>
<IfModule mod_ssl.c>
<VirtualHost *:443>
ServerName centrifugo.MY_HOSTING.com
SSLEngine On
SSLCertificateFile /PATH/TO/CRT/FILE.crt
SSLCertificateKeyFile /PATH/TO/KEY/FILE.key
SSLCertificateChainFile /PATH/TO/CHAIN/FILE.crt
<Location "/connection/">
# Required for websockets
RewriteEngine on
RewriteCond %{HTTP:Upgrade} =websocket [NC]
RewriteCond %{HTTP:Connection} upgrade [NC]
RewriteRule /connection/(.*) http://127.0.0.1:8000/connection/$1 [P,L]
</Location>
<Location "/">
ProxyPass http://127.0.0.1:8000/
ProxyPassReverse http://127.0.0.1:8000/
</Location>
ErrorLog ${APACHE_LOG_DIR}/PATH/SERVER_LOG/FILE.log
CustomLog ${APACHE_LOG_DIR}/PATH/ACCESS_LOG/FILE.log combined
#### This part I'm not sure how to translate it
ErrorDocument 500 "Server Error 500"
ErrorDocument 502 "Server Error 502"
ErrorDocument 503 "Server Error 503"
ErrorDocument 504 "Server Error 504"
</VirtualHost>
</IfModule>
the server has apache2.4 and ubuntu18, the centrifugo config is
{
"secret": "SECRET",
"admin_password": "PASSWORD",
"admin_secret": "ADMIN-SECRET",
"api_key": "API-KEY",
"engine": "memory",
"admin": true,
"debug": true,
"log_level": "debug"
}
current behavior
the url it's redirected to https succesfully, other projects works good with the ssl config
all directories path are checked and correct
but it says 404 page not found
when I try on the browser centrifugo.MY-HOST.com does show this 404 error
when I try with websocat library (from outside the server) websocat ws://centrifugo.MY-HOST.com/connection/websocket it says WebSocketError: Received unexpected status code. Error running
when I try with websocat library (from INSIDE the server, i mean connected by ssh) websocat ws://localhost:8000/connection/websocket it hangs... (waiting for messages I believe)
the centrifugo server it's up and listening port 8000, checked with netstat and supervisor says running
I changed 127.0.0.1 to localhost in the centrifugo config and the virtual host, added documentRoot to the path of the apache project and nothing...
what i'm doing wrong?

Answer 1

Never mind, it was my mistake in supervisor configuration. I had this:
[program:centrifugo]
command=sudo /var/www/centrifugo-server/centrifugo
autostart=true
autorestart=true
stderr_logfile=/var/log/centrifugo.error.log
stdout_logfile=/var/log/centrifugo.output.log
I placed the config file with full path to it and remove the sudo, and it works like a charm
command=/var/www/centrifugo-server/centrifugo --config=/var/www/centrifugo/config.json
I leave it here in case this could help anyone
Anyway if someone knows how to translate the balancer configuration on the virtual host, that part it's still missing, thanks