apache-frontend: add rfc5861 (stale-while-revalidate) plugin to ats

component/trafficserver/buildout.cfg

@@ -31,6 +31,7 @@ configure-options =
   --with-ncurses=${ncurses:location}
   --with-tcl=${tcl:location}/lib/
   --with-zlib=${zlib:location}
+  --enable-experimental-plugins
 environment =
   PATH=${make:location}/bin:${libtool:location}/bin:${pkgconfig:location}/bin:%(PATH)s
   LDFLAGS = -L${tcl:location}/lib -Wl,-rpath=${tcl:location}/lib -Wl,-rpath=${openssl:location}/lib

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

@@ -29,6 +29,7 @@ parts =
   trafficserver-configuration-directory
   trafficserver-records-config
   trafficserver-remap-config
+  trafficserver-plugin-config
   trafficserver-storage-config
 
 ## Monitoring part
@@ -454,6 +455,7 @@ input-port = 23432
 hostname = $${slap-parameter:frontend-name}
 remap = map / http://$${instance-parameter:ipv4-random}:$${apache-configuration:cache-through-port}
 disk-cache-config = $${trafficserver-directory:cache-path} 8G volume=$${slap-parameter:frontend-name}
+plugin-config = ${trafficserver:location}/libexec/trafficserver/rfc5861.so
 
 [trafficserver-configuration-directory]
 recipe = plone.recipe.command
@@ -490,6 +492,14 @@ mode = 700
 context =
     key content trafficserver-variable:remap
 
+[trafficserver-plugin-config]
+< = jinja2-template-base
+template = ${template-empty:target}
+rendered = $${trafficserver-configuration-directory:target}/plugin.config
+mode = 700
+context =
+    key content trafficserver-variable:plugin-config
+
 [trafficserver-storage-config]
 < = jinja2-template-base
 template = ${template-empty:target}