Explain what you are trying to do
Run caddy
Issues
Caddy randomly times out. I haven’t managed to get patterns such as specific times or how long it times out for
Show what you have already tried
I’ve setup logging, errors, etc to all output to journald (since I’m managing caddy with systemd, all stdout output goes to journald by default)
# logging
log / stdout "{host},{remote},{user},[{when_iso}],\"{method} {uri} {proto}\",{status},{size},{latency},\"{>Referer}\",\"{>User-Agent}\""
errors stdout {
404 www/404.html
418 www/418.html
}
I’ve also ran tcpdumps when things timeout. There is no activity at all from my external IP (work) to caddy (home)
Other relevant information
DNS is cloudflare, NOT utilizing the cloudlfare proxy. Router is pfsense port-forwarding 80 and 443 TCP to a Virtual IP (VIP) manage by keepalived. Keepalived is managing a floating IP among multiple nodes. As far as I can tell, this doesn’t seem to be an issue with a floating IP, as caddy is bound to *:443, and when it times out, hosts I’ve defined in my hosts file to point to the static IP of a single node time out as well. There are no relevant logs in caddy (it just stops logging because no activity is happening, apparently). The service doesn’t fail, so there is no failover. ss -plnt shows that it is still bound and listening to interfaces. It will randomly come back and serve requests usually between 5 and 10 minutes, with no manual intervention. The issue is not a network issues - connections like RDP, SSH, ping/ICMP through the same network drop no packets and have no issues. The exact setup with traefik instead of caddy proxied/load-balanced the exact same sites with the same variables (IP, router, network, virtual hosts, etc) for months with no issues, timeouts, etc.
build info
caddy -version
Caddy 0.11.4 (+33b00dc Tue Feb 19 09:57:34 UTC 2019) (unofficial)
(manually compiled - official build server was broken)
caddy -plugins
Server types:
http
Caddyfile loaders:
short
flag
default
Other plugins:
http.basicauth
http.bind
http.browse
http.cors
http.errors
http.expvar
http.ext
http.fastcgi
http.gzip
http.header
http.index
http.internal
http.limits
http.log
http.markdown
http.mime
http.minify
http.pprof
http.proxy
http.proxyprotocol
http.push
http.realip
http.redir
http.request_id
http.rewrite
http.root
http.s3browser
http.status
http.templates
http.timeouts
http.websocket
on
tls
tls.cluster.file
tls.dns.cloudflare