Salt: How to pipe bash output to package name?

[saurabhnemade]

We are trying to run yum install kernel-devel-$(uname -r) via salt state file.
We tried following but it does not resolve the uname -r at runtime. Instead it takes its value as it.

dependencies:
  pkg.installed:
    - pkgs:
      - kernel-devel-$(uname -r)
      - kernel-header-$(uname -r)

How can we handle it correctly in state file?

[ismail0352]

Try this to fetch grains.get kernelrelease

[garethgreenaway]

@saurabhnemade There are a couple approaches to accomplish what you're trying to do. You can use @ismail0352 's suggestion and pull the information from grains:

dependencies:
  pkg.installed:
    - pkgs:
      - kernel-devel-{{ grains['kernelrelease'] }}
      - kernel-header-{{ grains['kernelrelease'] }}

If you need to include the output from a command you can call the cmd.run module from the state file:

dependencies:
  pkg.installed:
    - pkgs:
      - kernel-devel-{{ salt['cmd.run']('uname -r') }}
      - kernel-header-{{ salt['cmd.run']('uname -r') }}

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