Split reactor files

There now are reactor files to run highstate on:

* New nodes only
* Master nodes
* Minion nodes

cluster/gce/templates/salt-master.sh

@@ -38,7 +38,7 @@ cat <<EOF >/etc/salt/master.d/reactor.conf
 # React to new minions starting by running highstate on them.
 reactor:
   - 'salt/minion/*/start':
-    - /srv/reactor/start.sls
+    - /srv/reactor/highstate-new.sls
 EOF
 
 # Install Salt

cluster/saltbase/reactor/highstate-all.sls

@@ -1,9 +0,0 @@
-# This runs highstate on the ALL nodes.
-#
-# Used from the vSphere provider. The IP addresses of the minons are passed to
-# the apiserver as arguments and every minion has static routes to every other
-# minion. This means every node should be refreshed when a node is added.
-#
-highstate_run:
-  cmd.state.highstate:
-    - tgt: '*'

cluster/saltbase/reactor/highstate-masters.sls

@@ -0,0 +1,10 @@
+# This runs highstate on the master node(s).
+#
+# Some of the cluster deployment scripts pass the list of minion addresses to
+# the apiserver as a command line argument. This list needs to be updated if a
+# new minion is started, so run highstate on the master(s) when this happens.
+#
+highstate_master:
+  cmd.state.highstate:
+    - tgt: 'roles:kubernetes-master'
+    - expr_form: grain

cluster/saltbase/reactor/highstate-minions.sls

@@ -0,0 +1,11 @@
+# This runs highstate on the minion nodes.
+#
+# Some of the cluster deployment scripts use the list of minions on the minions
+# themselves (for example: every minion is configured with static routes to
+# every other minion on a vSphere deployment). To propagate changes throughout
+# the pool, run highstate on all minions whenever a single minion starts.
+#
+highstate_minions:
+  cmd.state.highstate:
+    - tgt: 'roles:kubernetes-pool'
+    - expr_form: grain

cluster/saltbase/reactor/highstate-new.sls

@@ -0,0 +1,4 @@
+# This runs highstate only on the NEW node, regardless of type.
+highstate_new:
+  cmd.state.highstate:
+    - tgt: {{ data['id'] }}

cluster/saltbase/reactor/start.sls

@@ -1,5 +0,0 @@
-
-# This runs highstate on the target node
-highstate_run:
-  cmd.state.highstate:
-    - tgt: {{ data['id'] }}

cluster/vagrant/provision-master.sh

@@ -92,7 +92,7 @@ cat <<EOF >/etc/salt/master.d/reactor.conf
 # React to new minions starting by running highstate on them.
 reactor:
   - 'salt/minion/*/start':
-    - /srv/reactor/start.sls
+    - /srv/reactor/highstate-new.sls
 EOF
 
 cat <<EOF >/etc/salt/master.d/salt-output.conf

cluster/vsphere/templates/salt-master.sh

@@ -42,7 +42,9 @@ cat <<EOF >/etc/salt/master.d/reactor.conf
 # React to new minions starting by running highstate on them.
 reactor:
   - 'salt/minion/*/start':
-    - /srv/reactor/highstate-all.sls
+    - /srv/reactor/highstate-new.sls
+    - /srv/reactor/highstate-masters.sls
+    - /srv/reactor/highstate-minions.sls
 EOF
 
 mkdir -p /srv/salt/nginx