Enable userhosts in ERP5 tests

Run ERP5 tests under [usershosts](https://lab.nexedi.com/nexedi/userhosts) wrapper with the same host mapping as zope instances.

This will allow to simplify configuration of services such as memcached and also be a more realistic environment.

This revealed problems with userhosts, at least on Debian 9,  that have been fixed in userhosts!2 , so at the same time we update userhosts to get these fixes.

/reviewed-on !303

component/userhosts/buildout.cfg

@@ -13,6 +13,6 @@ location = ${userhosts-get:location}/userhosts
 [userhosts-get]
 recipe = slapos.recipe.build:gitclone
 repository = https://lab.nexedi.com/nexedi/userhosts.git
-revision = 48241da33416ef76097c9cdd6c70b8a57b4b69a8
+revision = 1d3b463e7856db6e674a06258c0840206e6a7b72
 git-executable = ${git:location}/bin/git
 location = ${buildout:parts-directory}/userhosts

stack/erp5/buildout.hash.cfg

@@ -87,7 +87,7 @@ md5sum = d1f33d406d528ae27d973e2dd0efb1ba
 
 [template-zope]
 filename = instance-zope.cfg.in
-md5sum = 490001726c0dd93cc94960d83a2f08e5
+md5sum = 6aec575a632a2a2672a54bcaedae81cb
 
 [template-balancer]
 filename = instance-balancer.cfg.in

stack/erp5/instance-zope.cfg.in

@@ -30,12 +30,22 @@ memcached-url = {{ dumps(slapparameter_dict['memcached-url']) }}
 cloudooo-url = {{ dumps(slapparameter_dict['cloudooo-url']) }}
 test-instance-path = ${directory:unit-test-path}
 prepend-path = ${buildout:bin-directory}
-run-unit-test = ${buildout:bin-directory}/runUnitTest
-run-test-suite = ${buildout:bin-directory}/runTestSuite
+run-unit-test = ${buildout:bin-directory}/runUnitTest.real
+run-test-suite = ${buildout:bin-directory}/runTestSuite.real
 openssl-binary = ${test-certificate-authority:openssl-binary}
 run-unit-test-binary = {{ parameter_dict['bin-directory'] }}/runUnitTest
 run-test-suite-binary = {{ parameter_dict['bin-directory'] }}/runTestSuite
 
+[{{ section('run-unit-test-userhosts-wrapper') }}]
+<= userhosts-wrapper-base
+wrapped-command-line = ${test-runner:run-unit-test}
+wrapper-path = ${buildout:bin-directory}/runUnitTest
+
+[{{ section('run-test-suite-userhosts-wrapper') }}]
+<= userhosts-wrapper-base
+wrapped-command-line = ${test-runner:run-test-suite}
+wrapper-path = ${buildout:bin-directory}/runTestSuite
+
 [test-certificate-authority]
 recipe = slapos.cookbook:certificate_authority
 openssl-binary = ${binary-link:target-directory}/openssl
@@ -168,6 +178,14 @@ template = inline: {{ '
 rendered = ${directory:etc}/hosts
 context = key host_dict hosts-parameter:host-dict
 
+[userhosts-wrapper-base]
+recipe = slapos.cookbook:wrapper
+environment =
+  HOSTALIASES=${hostaliases:rendered}
+  HOSTS=${hosts:rendered}
+parameters-extra = true
+command-line = '{{ parameter_dict['userhosts'] }}' ${:wrapped-command-line}
+
 {# Hack to deploy SSL certs via instance parameters -#}
 {% for zodb in zodb_dict.itervalues() -%}
 {%   set storage_dict = zodb.setdefault('storage-dict', {}) -%}
@@ -190,10 +208,8 @@ pem = {{dumps(storage_dict.pop(k))}}
 {# endhack -#}
 
 [runzope-base]
-recipe = slapos.cookbook:wrapper
-environment =
-  HOSTALIASES=${hostaliases:rendered}
-  HOSTS=${hosts:rendered}
+<= userhosts-wrapper-base
+environment +=
   TMP=${directory:tmp}
   TMPDIR=${directory:tmp}
   HOME=${buildout:directory}
@@ -204,8 +220,7 @@ environment =
 {% if slapparameter_dict.get('wendelin-core-zblk-fmt') %}
   WENDELIN_CORE_ZBLK_FMT={{ slapparameter_dict['wendelin-core-zblk-fmt'] }}
 {% endif %}
-parameters-extra = true
-command-line = '{{ parameter_dict['userhosts'] }}' '{{ bin_directory }}/runzope' -C '${:configuration-file}'
+wrapped-command-line = '{{ bin_directory }}/runzope' -C '${:configuration-file}'
 private-dev-shm = {{ slapparameter_dict['private-dev-shm'] }}
 
 [{{ section('zcml') }}]