Reorganize and add more comments to examples

api-daemon/provisioner/examples/userdata/multipart-userdata.yaml

@@ -0,0 +1,16 @@
+Content-Type: multipart/mixed; boundary="==BOUNDARY=="
+MIME-Version: 1.0
+
+--==BOUNDARY==
+Content-Type: text/cloud-config; charset="us-ascii"
+
+users:
+ - blah
+
+--==BOUNDARY==
+Content-Type: text/x-shellscript; charset="us-ascii"
+
+#!/bin/bash
+echo "pvc is grand" >> /etc/motd
+
+--==BOUNDARY==--

api-daemon/provisioner/examples/userdata/userdata.yaml

@@ -0,0 +1,19 @@
+Content-Type: text/cloud-config; charset="us-ascii"
+MIME-Version: 1.0
+
+#cloud-config
+# Example user-data file. It will:
+#  1. Generate locales for us
+#  2. Update packages and install OpenSSH and sudo
+#  3. Disable the manually-enabled cloud-init target (see debootstrap_script.py)
+#  4. Reboot the system
+# You can, of course, do anything you want in here which cloud-init normally supports.
+bootcmd:
+  - "locale-gen"
+package_update: true
+packages:
+  - openssh-server
+  - sudo
+runcmd:
+  - "systemctl disable cloud-init.target"
+  - "reboot"