Don't use exec
without user
parameter
If you use exec
without user
parameter, the command will get executed as root. You mostly don't want this.
There is a difference in the env variables of the exec if you run puppet manually or if the daemon runs.
Never ever use exec
without cwd
parameter
If you use exec
without cwd
parameter, the command get executed in the cwd of your puppet run. This can cause problems if you run the puppet agent manually.
Example:
# exec resource:
exec { "update_rubygems_${user}_${version}":
command => "${home}/.rbenv/shims/gem update --system ${version}",
unless => "${home}/.rbenv/shims/gem -v | /bin/grep ${version}",
}
This does execute rbenv commands. If puppet runs in a cwd without .rbenv-version
it's no problem it uses the default ruby version. If you are in a cwd with a .ruby-version
it uses the ruby version from this file for all rbenv commands. You will probably get some errors.