SmartOS: Add support for Joyent LX-Brand Zones

LX-brand zones on Joyent's SmartOS use a different metadata source
(socket file) than the KVM-based SmartOS virtualization (serial port).
This patch adds support for recognizing the different flavors of
virtualization on SmartOS and setting up a metadata source file object.
After the file object is created, the rest of the code for the datasource

LP: #1540965

1 files changed, 7 insertions, 0 deletions

diff --git a/doc/examples/cloud-config-datasources.txt b/doc/examples/cloud-config-datasources.txt
index 3bde4aac..2651c027 100644
--- a/doc/examples/cloud-config-datasources.txt
+++ b/doc/examples/cloud-config-datasources.txt
@@ -51,12 +51,19 @@ datasource:
       policy: on # [can be 'on', 'off' or 'force']
 
   SmartOS:
+    # For KVM guests:
     # Smart OS datasource works over a serial console interacting with
     # a server on the other end. By default, the second serial console is the
     # device. SmartOS also uses a serial timeout of 60 seconds.
     serial_device: /dev/ttyS1
     serial_timeout: 60
 
+    # For LX-Brand Zones guests:
+    # Smart OS datasource works over a socket interacting with
+    # the host on the other end. By default, the socket file is in
+    # the native .zoncontrol directory.
+    metadata_sockfile: /native/.zonecontrol/metadata.sock
+
     # a list of keys that will not be base64 decoded even if base64_all
     no_base64_decode: ['root_authorized_keys', 'motd_sys_info',
                        'iptables_disable']