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Diffstat (limited to 'doc/guix.texi')
| -rw-r--r-- | doc/guix.texi | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index ceec0d0cf5..aaa7cbb66f 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -36001,6 +36001,30 @@ be accomplished with the following operating system configuration snippet: For more information regarding the format of the @file{sudoers} file, consult @command{man sudoers}. +Once you've deployed a system on a set of machines, you may find it +useful to run a command on all of them. The @option{--execute} or +@option{-x} option lets you do that; the example below runs +@command{uname -a} on all the machines listed in the deployment file: + +@example +guix deploy @var{file} -x -- uname -a +@end example + +One thing you may often need to do after deployment is restart specific +services on all the machines, which you can do like so: + +@example +guix deploy @var{file} -x -- herd restart @var{service} +@end example + +The @command{guix deploy -x} command returns zero if and only if the +command succeeded on all the machines. + +@c FIXME/TODO: Separate the API doc from the CLI doc. + +Below are the data types you need to know about when writing a +deployment file. + @deftp {Data Type} machine This is the data type representing a single machine in a heterogeneous Guix deployment. |