Running Confluence over https with docker and Caddy reverse proxy

[tiero]

Hi! I read almost all previous questions about this topic and I cannot solve it, unfortunately.

My situation:

I run Confluence as docker container behind a reverse proxy (Caddy) that is also inside a container.

I Should say that running over unsecured HTTP all works correctly so it cannot be a problem of the reverse proxy/caddy, now I'm trying to move over https and doesn't seem to work.

Here's my docker-compose file

version: '3'
services:
# Confluence
confluence:
container_name: confluence
image: atlassian/confluence-server
ports:
- 8090:8090
- 8091:8091
environment:
- ATL_PROXY_NAME=confluence.mydomain.io
- ATL_PROXY_PORT=443
- ATL_TOMCAT_SCHEME=https
- ATL_TOMCAT_SECURE=true
volumes:
- $HOME/.confluence:/var/atlassian/application-data/confluence
restart: unless-stopped

# Caddy
caddy:
container_name: caddy
image: abiosoft/caddy
ports:
- 80:80
- 443:443
environment:
- CLOUDFLARE_DNS_API_TOKEN=MyTokenXXXX
volumes:
- $HOME/.caddy:/root/.caddy
- $HOME/Caddyfile:/etc/Caddyfile
depends_on:
- confluence
restart: unless-stopped

Here's my server.xml after startup

<?xml version="1.0" encoding="utf-8"?>

<Server port="8000"shutdown="SHUTDOWN">

<Listener className="org.apache.catalina.startup.VersionLoggerListener"/>
<Listener className="org.apache.catalina.core.AprLifecycleListener"
SSLEngine="on"/>
<Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener"/>
<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"/>
<Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener"/><Service name="Catalina">

<Connector port="8090"
maxThreads="100"
minSpareThreads="10"
connectionTimeout="20000"
enableLookups="false"
protocol="HTTP/1.1"
redirectPort="8443"
acceptCount="10"
secure="true"
scheme="https"
proxyName="confluence.mydomain.io"
proxyPort="443"relaxedPathChars="[]|"
relaxedQueryChars="[]|{}^\`&quot;&lt;&gt;"
bindOnInit="false"
maxHttpHeaderSize="8192"
useBodyEncodingForURI="true"
disableUploadTimeout="true" />

<Engine name="Standalone"
defaultHost="localhost"
debug="0">
<Host name="localhost"
debug="0"
appBase="webapps"
unpackWARs="true"
autoDeploy="false"
startStopThreads="4">
<Context path=""
docBase="../confluence"
debug="0"
reloadable="false"
useHttpOnly="true">
<!-- Logging configuration for Confluence is specified in confluence/WEB-INF/classes/log4j.properties -->
<Manager pathname=""/>
<Valve className="org.apache.catalina.valves.StuckThreadDetectionValve"
threshold="60"/>
</Context>
<Context path="${confluence.context.path}/synchrony-proxy"
docBase="../synchrony-proxy"
debug="0"
reloadable="false"
useHttpOnly="true">
<Valve className="org.apache.catalina.valves.StuckThreadDetectionValve"
threshold="60"/>
</Context></Host>
</Engine></Service></Server>

confluence.mydomain.io {
  proxy / confluence:8090 {
    transparent
  }
}

 Here's my Caddyfile

If I go over Chrome it says `ERR_TOO_MANY_REDIRECTS`

Any clue?