1. 2016-09-21 - Groups of Groups in Ansible; Tags: Groups of Groups in Ansible
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    Groups of Groups in Ansible

    Ansible is a free-software platform for configuring and managing computers which combines multi-node software deployment, ad hoc task execution, and configuration management by Red Hat. It is also possible to make groups of groups using the :children suffix.

    A small example, which geographical distinction of Switzerland. hosts

    [zurich]
    alpha-z
    beta-y
    zeta-t
    [bern]
    alpha-b
    omega-t
    [lausanne]
    chi-zeta
    delta
    [geneva]
    alpha-kappa
    gamma
    [deutschschweiz:children]
    zurich
    bern
    [romandie:children]
    lausanne
    geneva
    

    You can address all servers in the french speaking swiss (romandie). This command would reload the monit daemon on all hosts in Lausanne and Geneva.

    ansible romandie -i hosts -m shell -a "sudo monit reload"