add "runcmd" support in CloudConfig

runcmd allows simple running of commands at rc.local like time frame
see doc/examples/cloud-config.txt for more info.

1 files changed, 18 insertions, 0 deletions

diff --git a/doc/examples/cloud-config.txt b/doc/examples/cloud-config.txt
index f4de88e8..49ee7b26 100644
--- a/doc/examples/cloud-config.txt
+++ b/doc/examples/cloud-config.txt
@@ -155,3 +155,21 @@ ssh_keys:
 # default: false (service available)
 disable_ec2_metadata: true
 
+# run commands
+# default: none
+# runcmd contains a list of either lists or a string
+# each item will be executed in order at rc.local like level with
+# output to the console
+# - if the item is a list, the items will be properly executed as if
+#   passed to execve(3) (with the first arg as the command).
+# - if the item is a string, it will be simply written to the file and
+#   will be interpreted by 'sh'
+#
+# Note, that the list has to be proper yaml, so you have to escape
+# any characters yaml would eat (':' can be problematic)
+runcmd:
+ - [ ls, -l, / ]
+ - [ sh, -xc, "echo $(date) ': hello world!'" ]
+ - [ sh, -c, echo "=========hello world'=========" ]
+ - ls -l /root
+ - [ wget, "http://slashdot.org", -O, /tmp/index.html ]