software/erp5testnode: use a local directory for shared parts

For now we just use a directory inside the partition as shared parts,
but we could also maybe one day also inject the shared_part_list from
this slapos.

software/erp5testnode/buildout.hash.cfg

@@ -18,4 +18,4 @@ md5sum = 307663d73ef3ef94b02567ecd322252e
 
 [template-default]
 filename = instance-default.cfg
-md5sum = a76803eedf0c66fe7649b62efc86c8fe
+md5sum = 3c2420de64f079b3b3231dfbff1633b5

software/erp5testnode/instance-default.cfg

@@ -33,6 +33,7 @@ recipe = slapos.cookbook:erp5testnode
 slapos-directory = $${directory:slapos}
 working-directory = $${directory:testnode}
 test-suite-directory = $${directory:test-suite}
+shared-part-list = $${directory:shared}
 proxy-host = $${slap-network-information:local-ipv4}
 proxy-port = 5000
 log-directory = $${directory:log}
@@ -188,6 +189,7 @@ run = $${rootdirectory:var}/run
 recipe = slapos.cookbook:mkdirectory
 slapos = $${rootdirectory:srv}/slapos
 testnode = $${rootdirectory:srv}/testnode
+shared = $${rootdirectory:srv}/shared
 test-suite = $${rootdirectory:srv}/test_suite
 log = $${basedirectory:log}/testnode
 run = $${basedirectory:run}/testnode