Adding testenv worker wrapper script

Adds a script 60-setup-testenvs which is run by os-refresh-config. On
first boot this carves up the host into a number of test environments
and starts a gearman worker for each environment, noop if run more
than once. Each test environment will have a seed, 3 vm's all on
their own bridge.

Depends-on: Ie33736850ec8186f0c90b82b6fbb0fd57fe47dc9
Change-Id: I46b2c95ccbda484b4de03585b830ac578df0e937

elements/testenv-worker/README.md

@@ -0,0 +1,22 @@
+Install and configure a tripleo testenv worker
+
+Carves up this host into a number of test environments and registers each one with gearman.
+
+Configuration
+-------------
+
+      gearman-worker:
+        host: 127.0.0.1 # gearman broker host
+        port:
+        mem-per-env: 16   # Indicates each testenv should have 16G of Mem
+        cpu-per-env: 4    # Indicates each testenv should have 4 cpu cores
+        disk-per-env: 80  # Indicates each testenv should have 80G of disk space
+        auth_user: admin
+        auth_tenant: admin
+        auth_url: http://127.0.0.1:5000
+        auth_passwd: password
+      neutron:
+        ovs:
+          physical_bridge:  # A bridge name for the public_interface and seed interfaces
+          public_interface: # The interface that should be moved onto physical_bridge
+                            # in order to comunicate with seed VM's