cc_landscape: do nothing if config not give. install landscape-client.

ChangeLog

@@ -1,6 +1,8 @@
 0.7.1:
  - sysvinit: fix missing dependency in cloud-init job for RHEL 5.6 
  - config-drive: map hostname to local-hostname (LP: #1061964)
+ - landscape: install landscape-client package if not installed.
+   only take action if cloud-config is present (LP: #1066115)
 0.7.0:
  - add a 'exception_cb' argument to 'wait_for_url'.  If provided, this
    method will be called back with the exception received and the message.

cloudinit/config/cc_landscape.py

@@ -59,6 +59,10 @@ def handle(_name, cfg, cloud, log, _args):
         raise RuntimeError(("'landscape' key existed in config,"
                             " but not a dictionary type,"
                             " is a %s instead"), util.obj_name(ls_cloudcfg))
+    if not ls_cloudcfg:
+        return
+
+    cloud.distro.install_packages(["landscape-client"])
 
     merge_data = [
         LSC_BUILTIN_CFG,
@@ -79,7 +83,6 @@ def handle(_name, cfg, cloud, log, _args):
     util.write_file(lsc_client_fn, contents.getvalue())
     log.debug("Wrote landscape config file to %s", lsc_client_fn)
 
-    if ls_cloudcfg:
     util.write_file(LS_DEFAULT_FILE, "RUN=1\n")