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| author | Scott Moser <smoser@ubuntu.com> | 2011-12-20 12:02:39 -0500 |
|---|---|---|
| committer | Scott Moser <smoser@ubuntu.com> | 2011-12-20 12:02:39 -0500 |
| commit | b17a271da699230be8dad5d8c0227a5c7c238503 (patch) | |
| tree | fc0f9419f83f8533cf6d6259b45c195795f4bb94 /doc | |
| parent | 13015ef25fa7e748e916c99f083e338b28861a18 (diff) | |
| parent | 57a28850fae6098a32e7c16ab90541fd785684cb (diff) | |
| download | vyos-cloud-init-b17a271da699230be8dad5d8c0227a5c7c238503.tar.gz vyos-cloud-init-b17a271da699230be8dad5d8c0227a5c7c238503.zip | |
add INSTANCE_ID to env of bootcmd, add cloud-init-per
the environment varible INSTANCE_ID is set when invoking boothooks from
multi-part input. However, previously that was not the case for things
run via bootcmd.
This adds cloud-init-per, which makes it easy for user in bootcmd or
boothook to do something per 'instance', 'always', or 'once'.
The functionality in cloud-init-per mostly duplicated what was in
cloud-init-run-module. That supported "modules", but it is unlikely
that it was used for anything other than "execute". So, cloud-init-per
now replaces cloud-init-run-module and provides legacy support for
the 'execute' path.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/examples/cloud-config.txt | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/examples/cloud-config.txt b/doc/examples/cloud-config.txt index d67b572c..4f621274 100644 --- a/doc/examples/cloud-config.txt +++ b/doc/examples/cloud-config.txt @@ -228,9 +228,13 @@ runcmd: # in the boot process, only slightly after a 'boothook' would run. # bootcmd should really only be used for things that could not be # done later in the boot process. bootcmd is very much like -# boothook, but possibly with more friendly +# boothook, but possibly with more friendly. +# * bootcmd will run on every boot +# * the INSTANCE_ID variable will be set to the current instance id. +# * you can use 'cloud-init-boot-per' command to help only run once bootcmd: - echo 192.168.1.130 us.archive.ubuntu.com > /etc/hosts + - [ cloud-init-per, once, mymkfs, mkfs, /dev/vdb ] # cloud_config_modules: # default: |