turnserver: use buildout.hash.cfg to manage hashes

software/turnserver/buildout.hash.cfg

+# THIS IS NOT A BUILDOUT FILE, despite purposedly using a compatible syntax.
+# The only allowed lines here are (regexes):
+# - "^#" comments, copied verbatim
+# - "^[" section beginings, copied verbatim
+# - lines containing an "=" sign which must fit in the following categorie.
+#   - "^\s*filename\s*=\s*path\s*$" where "path" is relative to this file
+#     Copied verbatim.
+#   - "^\s*hashtype\s*=.*" where "hashtype" is one of the values supported
+#     by the re-generation script.
+#     Re-generated.
+# - other lines are copied verbatim
+# Substitution (${...:...}), extension ([buildout] extends = ...) and
+# section inheritance (< = ...) are NOT supported (but you should really
+# not need these here).
+
+[instance-cfg]
+filename = instance.cfg.in
+md5sum = d027a2dccaf15ae6e7d3a28cc02d70c3
+
+[template-turnserver]
+filename = instance-turnserver.cfg.jinja2.in
+md5sum = 02bddf180519f7649d3b1f997a496eed

software/turnserver/software.cfg

@@ -7,6 +7,7 @@ extends =
   ../../component/socat/buildout.cfg
   ../../stack/monitor/buildout.cfg
   ../../stack/slapos.cfg
+  buildout.hash.cfg
 
 
 parts +=
@@ -22,14 +23,11 @@ mode = 644
 
 [instance-cfg]
 recipe = slapos.recipe.template
-url = ${:_profile_base_location_}/instance.cfg.in
+url = ${:_profile_base_location_}/${:filename}
 output = ${buildout:directory}/instance.cfg
-md5sum = d027a2dccaf15ae6e7d3a28cc02d70c3
 
 [template-turnserver]
 <= download-base
-filename = instance-turnserver.cfg.jinja2.in
-md5sum = 02bddf180519f7649d3b1f997a496eed
 
 [versions]
 slapos.recipe.template = 4.3