added first config

Caddyfile.tmpl

@@ -0,0 +1,9 @@
+{
+	acme_dns desec {
+		token {env.GANDI_BEARER_TOKEN}
+	}
+
+    test.com {
+        reverse_proxy localhost:8080
+    }
+}

Containerfile

@@ -0,0 +1,9 @@
+ARG CADDY_VERSION=2
+FROM caddy:${CADDY_VERSION}-builder AS builder
+
+RUN xcaddy build \
+    --with github.com/caddy-dns/desec
+
+FROM caddy:${CADDY_VERSION}
+
+COPY --from=builder /usr/bin/caddy /usr/bin/caddy

caddy.build

@@ -0,0 +1,7 @@
+[Unit]
+Description=Build caddy image with desec.io DNS plugin
+
+[Build]
+File=%h/container/caddy/Containerfile
+ImageTag=caddy-gandi:latest
+SetWorkingDirectory=unit

caddy.container

@@ -0,0 +1,23 @@
+[Unit]
+Description=Caddy reverse proxy (Desec.io DNS challenge)
+
+[Container]
+Image=caddy.build
+ContainerName=caddy
+PublishPort=8080:80
+PublishPort=8443:443
+Volume=./Caddyfile:/etc/caddy/Caddyfile:ro,Z
+Volume=caddy-data:/data
+Volume=caddy-config:/config
+
+Secret=desec-token,type=env,target=GANDI_BEARER_TOKEN
+
+# For ACME notifications
+EnvironmentFile=./config.env
+
+[Service]
+Restart=always
+RestartSec=3
+
+[Install]
+WantedBy=default.target

config.env.tmpl

@@ -0,0 +1 @@
+ACME_EMAIL=admin@test.com