Run the playbook: $ ansible-playbook -i hosts check_package.yml Validate Playbook syntax: $ ansible-playbook -syntax-check check_package.yml -i hosts When: ansible_facts = 'RedHat'Ĭreate a hosts inventory file: $ vim hosts name: 'Check if listed package is installed or not on Red Hat Linux family' name: 'Check if listed package is installed or not on Debian Linux family' #connection: local # When running locally 1) Using Ansible command moduleĬreate a new playbook file called check_package.yml vim check_package.yml We will be checking if vim package is installed on either Debian based or Red Hat based Linux distribution.

Execute another task based on the check results.

Check if package is installed and output status in the results message.From the results a condition can then be used, e.g skip a task if package is installed, or install if check status is failed. You can use Ansible automation tool to query installation status of a package on Linux a system. You may need to use flatten(1) with loop to match the exact outcome.How can I check if a software package is installed on a Linux system using Ansible?. Generally speaking, any use of with_* covered in Migrating from with_X to loop can be updated to use loop.īe careful when changing with_items to loop, as with_items performed implicit single-level flattening. The loop keyword will not accept a string as input, see Ensuring list input for loop: using query rather than lookup. The loop keyword is equivalent to with_list, and is the best choice for simple loops.

The with_ keywords rely on Lookup plugins - even items is a lookup. Tracking progress through a loop with index_varĭefining inner and outer variable names with loop_var Controlling how Ansible behaves: precedence rulesĮnsuring list input for loop: using query rather than lookup.Virtualization and Containerization Guides.Protecting sensitive data with Ansible vault.Playbook Example: Continuous Delivery and Rolling Upgrades.Discovering variables: facts and magic variables.Working with language-specific version managers.

Controlling where tasks run: delegation and local actions.Ensuring list input for loop: using query rather than lookup.

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