caddy-frontend: Simplify Caddy wrappers

As SIGUSR1 nor SIGUSR2 can't be used to reload caddy after anything changed
in the wrapper, limit the amount of parameters send to Caddy.

software/caddy-frontend/buildout.hash.cfg

@@ -19,7 +19,7 @@ md5sum = f686f765e55d1dce2e55a400f0714b3e
 
 [template-apache-frontend]
 filename = instance-apache-frontend.cfg
-md5sum = 441ebd011cd33f17b48590cc6969970a
+md5sum = d4eb1cf0ceb223ec07337d48c8f8c388
 
 [template-apache-replicate]
 filename = instance-apache-replicate.cfg.in
@@ -75,7 +75,7 @@ md5sum = 8cde04bfd0c0e9bd56744b988275cfd8
 
 [template-caddy-wrapper]
 filename = templates/caddy-wrapper.in
-md5sum = 688d06546a12aa74ff4eea59fee624b8
+md5sum = 5213d8aca7231a4229ae5b8becce655f
 
 [template-trafficserver-records-config]
 filename = templates/trafficserver/records.config.jinja2

software/caddy-frontend/instance-apache-frontend.cfg

@@ -259,11 +259,6 @@ mode = 0700
 extra-context =
     raw caddy ${caddy:output}
     key conf dynamic-apache-frontend-template:rendered
-    key root caddy-directory:document-root
-    key host instance-parameter:configuration.domain
-    key http_port instance-parameter:configuration.plain_http_port
-    key https_port instance-parameter:configuration.port
-    key content apache-configuration:frontend-graceful-command
     key log apache-configuration:error-log
     key grace instance-parameter:configuration.mpm-graceful-shutdown-timeout
     key pidfile apache-configuration:pid-file
@@ -707,10 +702,6 @@ mode = 0700
 extra-context =
     raw caddy ${caddy:output}
     key conf nginx-configuration:output
-    key root caddy-directory:document-root
-    key host instance-parameter:configuration.domain
-    key http_port nginx-configuration:plain_port
-    key https_port nginx-configuration:port
     key log nginx-configuration:error_log
     key grace instance-parameter:configuration.mpm-graceful-shutdown-timeout
     key pidfile nginx-configuration:pid-file

software/caddy-frontend/templates/caddy-wrapper.in

@@ -2,10 +2,6 @@
 
 exec {{ caddy }} \
   -conf {{ conf }} \
-  -root {{ root }} \
-  -host {{ host }} \
-  -http-port {{ http_port }} \
-  -https-port {{ https_port }} \
   -log {{ log }} \
   -http2=true \
   -grace {{ grace }}s \