proxy: Use own Dockerfile

+ Download prebuild caddy
+ Always set ca url

proxy/Dockerfile

@@ -1,3 +1,36 @@
-FROM abiosoft/caddy:no-stats
+#
+# DOWNLOAD
+#
+FROM alpine:3.11 as download
 
-RUN apk add --no-cache hugo
+ADD https://caddyserver.com/download/linux/amd64?plugins=http.git&license=personal&telemetry=off /caddy.tar.gz
+RUN tar -vxzf /caddy.tar.gz
+
+#
+# CADDY
+#
+FROM alpine:3.11
+LABEL maintainer "Carsten Sprung <carsten.sprung@csprung.de>"
+
+# Telemetry Stats
+ENV ENABLE_TELEMETRY="false"
+
+RUN apk add --no-cache \
+    ca-certificates \
+    git \
+    mailcap \
+    openssh-client \
+    tzdata \
+    hugo
+
+COPY --from=download /caddy /usr/bin/caddy
+
+# validate install
+RUN /usr/bin/caddy -version
+RUN /usr/bin/caddy -plugins
+
+EXPOSE 80 443 2015
+WORKDIR /srv
+
+ENTRYPOINT ["/usr/bin/caddy"]
+CMD ["--conf", "/etc/Caddyfile", "--env", "--log", "stdout", "--agree=true", "--disable-tls-alpn-challenge"]

proxy/config/common

@@ -1,4 +1,6 @@
 log / stdout "{host} - {common}"
 errors stdout
-tls {$TLS_EMAIL}
+tls {$TLS_EMAIL} {
+    ca {$CA_URL}
+}
 gzip

proxy/docker-compose.yml

@@ -15,8 +15,8 @@ services:
     environment:
       - BASE_DOMAIN=${BASE_DOMAIN}
       - CADDYPATH=/etc/caddycerts
-      - ACME_AGREE=true
       - TLS_EMAIL=${CADDY_TLS_EMAIL:-self_signed}
+      - CA_URL=${CADDY_CA_URL}
       - DEV_PASS=${CADDY_DEV_PASS}
     ports:
       - '80:80'