compile varnish tmpl from docker-entrypoint script

also updates kubernetes resources to separate app & varnish into two different deployments

varnish/Dockerfile

@@ -44,14 +44,9 @@ COPY default.vcl.tmpl /etc/varnish/
 COPY *.vcl /etc/varnish/
 COPY includes /etc/varnish/includes
 
-# Set variables for *.tmpl files
-ARG PROXY_HOST=$PROXY_HOST
-ARG IMAGE_HOST=$IMAGE_HOST
-
-# Generate VCL
-RUN gomplate -f /etc/varnish/default.vcl.tmpl -o /etc/varnish/default.vcl
-RUN rm /etc/varnish/default.vcl.tmpl
+# Create entrypoint script
+COPY docker-entrypoint.sh /usr/local/bin/
+RUN chmod +x /usr/local/bin/docker-entrypoint.sh
 
 EXPOSE 6081
-CMD ["varnishd", "-F", "-f", "/etc/varnish/default.vcl", "-a", ":6081", "-s", "malloc,512m"]
-
+ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]

varnish/default.vcl.tmpl

@@ -46,17 +46,6 @@ sub vcl_recv {
     unset req.http.Cookie;
 }
 
-// Svelte-kit needs to distinguish between it's own files and the Host header.
-// The X-Forwarded-* headers below are to tell svelte-kit where it's local files are,
-// and the Host header is included in the returned html & js referencing the external
-// domain or proxy requested by client.
-// https://svelte.dev/docs/kit/adapter-node#Environment-variables-ORIGIN-PROTOCOL_HEADER-HOST_HEADER-and-PORT_HEADER
-sub vcl_backend_fetch {
-    set bereq.http.X-Forwarded-Host = "localhost";
-    set bereq.http.X-Forwarded-Port = "3000";
-    set bereq.http.X-Forwarded-Proto = "http";
-}
-
 sub vcl_synth {
     if (resp.status == 204) {
         set resp.http.Access-Control-Allow-Origin = "*";

varnish/docker-entrypoint.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+set -e
+
+# Generate VCL at runtime
+gomplate -f /etc/varnish/default.vcl.tmpl -o /etc/varnish/default.vcl
+
+# Execute startup CMD
+exec varnishd -F -f /etc/varnish/default.vcl -a :6081 -s malloc,512m