Websocket issues from 2.9* #7329
Description
Issue Details
so recently i needed to create a new docker build for my work which i have used before, however because i was using latest tag in the builder the version of caddy was much greater than the last time i built it, and this has highlighted some issues with websockets, i then worked back with the builder numbers until i got to 2.8 where everything is working again.
basically when reverse_proxying a websocket it closes the connection without any valid reason.
here is the dockerfile
FROM caddy:2.8-builder-alpine AS builder
RUN xcaddy build \
--with github.com/caddy-dns/cloudflare@188b4850c0f2f5565a6310810c936ea960e2210f \
--with github.com/caddy-dns/route53@v1.5.0
FROM caddy:alpine
COPY --from=builder /usr/bin/caddy /usr/bin/caddy
here is the Caddyfile (anonymized)
*.mydomain.com *.dev.mydomain.com {
#PORTAL
@portal_http {
host portal.dev.mydomain.com
}
@portal_ws {
host portal.dev.mydomain.com
header Connection *Upgrade*
header Upgrade websocket
}
handle @portal_ws {
header {
Identifier "soketi"
}
reverse_proxy portal_soketi:6001 {
header_up Connection {http.request.header.Connection}
header_up Upgrade {http.request.header.Upgrade}
}
}
reverse_proxy @portal_http portal_web {
header_up Host {host}
header_up X-Real-IP {remote}
header_up X-Forwarded-Port 443
health_timeout 5s
}
tls {
dns route53
}
}
Assistance Disclosure
No response
If AI was used, describe the extent to which it was used.
websockets not working from builder version 2.9 upwards.