1. The problem I’m having:
I’m trying to find the best way to automatically update my Caddyfile with the correct IP in the Namecheap DNS module.
2. Error messages and/or full log output:
Not relevant.
3. Caddy version:
v2.9.1 h1:OEYiZ7DbCzAWVb6TNEkjRcSCRGHVoZsJinoDR/n9oaY=
4. How I installed and ran Caddy:
Downloaded with the necessary plugins. DynamicDNS and Namecheap.
a. System environment:
Arch Linux using linux-hardened kernel, x86_64
Rootless Podman
b. Command:
systemctl --user start caddy.socket
c. Service/unit/compose file:
# container-caddy.service
# autogenerated by Podman 5.3.2
# Mon Feb 10 14:29:57 MST 2025
[Unit]
Description=Podman container-caddy.service
Documentation=man:podman-generate-systemd(1)
Wants=network-online.target
After=network-online.target
RequiresMountsFor=%t/containers
[Service]
Environment=PODMAN_SYSTEMD_UNIT=%n
Restart=on-failure
TimeoutStopSec=70
ExecStart=/usr/bin/podman run \
--cidfile=%t/%n.ctr-id \
--cgroups=no-conmon \
--rm \
--name caddy \
--replace \
--add-host pihole:172.17.0.5 \
--add-host unbound:172.17.0.10 \
--add-host vaultwarden:172.19.0.5 \
--network dns \
--network vaultwarden \
--sdnotify=container \
-d \
-v /home/riley/.config/containers/storage/caddy/caddy:/usr/bin/caddy \
-v /home/riley/.config/containers/storage/caddy/Caddyfile:/etc/caddy/Caddyfile:Z \
-v /home/riley/.config/containers/storage/caddy/caddy-config:/config \
-v /home/riley/.config/containers/storage/caddy/caddy-data:/data \
--env EMAIL=rileymotter@protonmail.com \
--env LOG_FILE=/data/access.log docker.io/library/caddy /usr/bin/caddy run \
--config /etc/caddy/Caddyfile
ExecStop=/usr/bin/podman stop \
--ignore -t 10 \
--cidfile=%t/%n.ctr-id
ExecStopPost=/usr/bin/podman rm \
-f \
--ignore -t 10 \
--cidfile=%t/%n.ctr-id
Type=notify
NotifyAccess=all
[Install]
WantedBy=default.target
d. My complete Caddy config:
{
debug
admin fd/6
dynamic_dns {
provider namecheap {
api_key redacted
user redacted
}
domains {
famdam.top @
}
versions ipv4
}
}
*.famdam.top {
tls {
dns namecheap {
api_key redacted
user redacted
api_endpoint https://api.namecheap.com/xml.response
client_ip 139.60.65.236
}
}
bind fd/3 {
protocols h1
}
bind fd/4 {
protocols h1 h2
}
bind fdgram/5 {
protocols h3
}
@vaultwarden host vaultwarden.famdam.top
handle @vaultwarden {
reverse_proxy vaultwarden:80 {
header_up X-Forwarded-For {http.request.header.X-Real-IP}
}
}
@wireguard host wireguard.famdam.top
handle @wireguard {
reverse_proxy wireguard:80 {
header_up X-Forwarded-For {http.request.header.X-Real-IP}
}
}
@pihole host pihole.famdam.top
handle @pihole {
reverse_proxy pihole:80 {
header_up X-Forwarded-For {http.request.header.X-Real-IP}
}
}
@srv-teamspeak-1 host teamspeak.famdam.top
handle @srv-teamspeak-1 {
reverse_proxy 192.168.1.60:9987 {
header_up X-Forwarded-For {http.request.header.X-Real-IP}
}
}
handle {
abort
}
encode zstd gzip
}