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Using Ansible Modules to Manage Services in Your Environment

Connecting to a single server to restart a service is tedious. Now imagine having to do it on a hundred servers. That kind of task is what tools like Ansible are great at. This lab will help reinforce some of the lesson on managing services. *This course is not approved or sponsored by Red Hat.*

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Path Info

Clock icon Intermediate
Clock icon 15m
Clock icon Oct 18, 2019

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Table of Contents

  1. Challenge

    Start httpd on the Clients in the webserver Group

    Create and edit services.yml, and add a section to start httpd. The block will look like this:

    - name: Start httpd
      hosts: webservers
      become: yes
      - service:
         name: httpd
         state: started
         enabled: yes
  2. Challenge

    Start PostgreSQL on Clients in the dbservers and adminservers Groups

    Edit services.yml further and add a section to start PostgreSQL. Because the services need to start asynchronously, we have to use the systemd module:

    - name: Start postgresql
      hosts: dbservers:admins
      become: yes
      - systemd:
         name: postgresql
         state: started
         no_block: yes

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