Initial commit of zuul-worker DIB element

Now that zuulv2.5 has landed, we can start building our DIBs using the
new zuul-worker element.  As part of the jenkins clean up, we'll
eventually be removing all things jenkins from our puppet manifests.

As we move forward, we'll be using DIB to bootstrap our zuul-workers
over puppet.

Change-Id: I0e76931fdb4ca0c7445b1e72dc348f0cf03eaee5
Depends-On: Idb4ef11576671180060fb5b2b1202f9bfec5fd47
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

nodepool/elements/nodepool-base/element-deps

@@ -1 +1,2 @@
 puppet
+zuul-worker

nodepool/elements/zuul-worker/element-deps

@@ -0,0 +1,2 @@
+devuser
+package-installs

nodepool/elements/zuul-worker/environment.d/05-zuul.bash

@@ -0,0 +1,16 @@
+# Copyright 2016 Red Hat, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+export DIB_DEV_USER_PWDLESS_SUDO=true
+export DIB_DEV_USER_USERNAME=zuul

nodepool/elements/zuul-worker/package-installs.yaml

@@ -0,0 +1 @@
+libselinux-python:

nodepool/elements/zuul-worker/pkg-map

@@ -0,0 +1,7 @@
+{
+  "family": {
+    "debian": {
+      "libselinux-python": ""
+    }
+  }
+}