akkoma/installation/openbsd/relayd.conf

#
# Default relayd.conf file for Akkoma on OpenBSD
# Simple installation instructions:
# 1. Place in /etc
# 2. Replace <ipaddr> with your public IPv4 address
# 3. If using IPv6i, uncomment IPv6 lines and replace <ip6addr> with your public IPv6 address
# 4. Check file using 'doas relayd -n'
# 5. Reload/start relayd
#      # doas rcctl enable relayd
#      # doas rcctl start relayd
#

ext_inet="<ipaddr>"
#ext_inet6="<ip6addr>"

table <akkoma_server> { 127.0.0.1 }
table <httpd_server> { 127.0.0.1 }

http protocol plerup { # Protocol for upstream akkoma server
    #tcp { nodelay, sack, socket buffer 65536, backlog 128 } # Uncomment and adjust as you see fit
    tls ciphers "ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA0-POLY1305"
    tls ecdhe secp384r1

    # Forward some paths to the local server (as akkoma won't respond to them as you might want)
    pass request quick path "/robots.txt" forward to <httpd_server>

    # Append a bunch of headers
    match request header append "X-Forwarded-For" value "$REMOTE_ADDR" # This two header and the next one are not strictly required by akkoma but adding them won't hurt
    match request header append "X-Forwarded-By" value "$SERVER_ADDR:$SERVER_PORT"

    match request header append "Connection" value "upgrade"

}

relay wwwtls {
    listen on $ext_inet port https tls # Comment to disable listening on IPv4
#    listen on $ext_inet6 port https tls # Comment to disable listening on IPv6

    protocol plerup

    forward to <akkoma_server> port 4000 check http "/" code 200
    forward to <httpd_server> port 80 check http "/robots.txt" code 200
}