Add project fuel-nailgun-agent repo

Before this we kept node discovery agent
in stackforge/fuel-web repo:

* https://github.com/stackforge/fuel-web/blob/master/bin/agent
* https://github.com/stackforge/fuel-web/blob/master/bin/nailgun-agent.cron

I am suggesting to move it because:

* written on Ruby instead of Python;
* installed on nodes unlike Nailgun;
* it is client for Nailgun API;
* need another core-reviewers team;
* need to be tested differently.

We kept changes history from fuel-web repository
Closes-Bug: #1473893

Change-Id: I4ac73151f076ba230fa7951d55e9b2d13236ad7d

gerrit/acls/stackforge/fuel-nailgun-agent.config

@@ -0,0 +1,16 @@
+[access "refs/heads/*"]
+abandon = group fuel-nailgun-agent-core
+create = group fuel-nailgun-agent-core
+label-Code-Review = -2..+2 group fuel-nailgun-agent-core
+label-Verified = -1..+1 group fuel-ci
+label-Workflow = -1..+1 group fuel-nailgun-agent-core
+
+[access "refs/tags/*"]
+pushSignedTag = group fuel-nailgun-agent-core
+
+[receive]
+requireChangeId = true
+requireContributorAgreement = true
+
+[submit]
+mergeContent = true

gerrit/projects.yaml

@@ -1775,6 +1775,12 @@
     is capable of doing bare metal provisioning of physical nodes, installing OpenStack
     on them, and much more.
   docimpact-group: fuel
+- project: stackforge/fuel-nailgun-agent
+  upstream: https://github.com/warpc/fuel-nailgun-agent.git
+  groups:
+    - fuel
+  description: Node discovery agent for Fuel
+  docimpact-group: fuel
 - project: stackforge/fuel-ostf
   description: Fuel testing
   groups:

gerritbot/channels.yaml

@@ -84,6 +84,7 @@ fuel-tracker:
       - stackforge/fuel-astute
       - stackforge/fuel-ostf
       - stackforge/fuel-main
+      - stackforge/fuel-nailgun-agent
       - stackforge/fuel-provision
       - stackforge/fuel-dev-tools
       - stackforge/fuel-docs

zuul/layout.yaml

@@ -6338,6 +6338,11 @@ projects:
       - name: merge-check
       - name: noop-jobs
 
+  - name: stackforge/fuel-nailgun-agent
+    template:
+      - name: merge-check
+      - name: noop-jobs
+
   - name: stackforge/fuel-ostf
     template:
       - name: merge-check