user_data for nova_compute module

[John Test]

Hello

I have a question regarding user_data parameter for nova_compute
http://docs.ansible.com/nova_compute_module.html

Is it possible to see some examples?

What I am trying to do:
Pass information to run commands / install software inside the instance after it is launched


Thanks!

[John Test]

Figured it out thanks to sivel on IRC.
In case anyone else is wondering just do a lookup('file', 'filename')
The file called "filename" can be a bash script file, cloud init file, etc.
Make sure the file starts with the appropriate header such as
#!/bin/bash or #cloud-config etc.

[Brian Coca]

lookup('pipe', 'script') might be more appropriate, it will succeed in
many cases that file will fail.

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Brian Coca

[John Test]

pipe is failing on me

pb_set_proxy: "{{ lookup('pipe', 'proxy-set.sh') }}"

/bin/sh: 1: proxy-set.sh: not found
ERROR: lookup_plugin.pipe(proxy-set.sh) returned 127

I know it says not found but it is present and in same dir.


I actually have another problem

I am using 2 user_data parameters like this in the same nova_compute task

   user_data: "{{ lookup('file', 'proxy-set.sh') }}"
   user_data: "{{ lookup('file', 'misc-install.sh') }}"

Only the misc-install.sh is working and the proxy-set.sh is not.
What's the correct way to do this?

Thanks!

[Matt Martz]

I don't really think pipe is what you need.  pipe executes a command and returns the result.  I think 'file' is still appropriate.

As far as your double user_data, you can only include one "blob" of data.  You could try concatenating the scripts such as:

user_data: "{{ lookup('file', 'proxy-set.sh') ~ '\n' ~ lookup('file', 'misc-install.sh') }}"

To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/a96e7a58-525b-4cbe-a7d3-4fc1bef6435d%40googlegroups.com.

For more options, visit https://groups.google.com/d/optout.

--

Matt Martz
@sivel
sivel.net

[Brian Coca]

ah, misunderstood, thought you wanted data from executing the script,
not to upload the script itself as data.

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[John Test]

Thanks Matt!