Ansible troubleshooting - Error no-prompting
By Luca Berton · Published 2024-01-01 · Category: troubleshooting
Here's an example of problematic code in an Ansible playbook, including user prompts and a 5-minute pause, which violates best practices and can be corrected by removing the prompts and pause.
Avoid Unnecessary Prompting and Pausing in Ansible Playbooks
Ansible is a powerful automation tool designed to simplify complex IT tasks. While it's excellent for handling various configurations and deployments, it's important to create playbooks that can run unattended, particularly in Continuous Integration/Continuous Deployment (CI/CD) pipelines. This article discusses the Ansible playbook error "no-prompting," which helps ensure that your playbooks are suitable for automated, unattended execution.
The Challenge: Prompts and Pauses
Sometimes, playbooks include user prompts or unnecessary pauses. While these may be useful for manual interventions in some situations, they can become obstacles when you want your playbooks to execute automatically.
For instance, consider a playbook that asks for user credentials via vars_prompt and includes tasks like ansible.builtin.pause to create wait times. In a CI/CD environment, these prompts and pauses can lead to stalled automation pipelines.
The Solution: no-prompting Rule
To prevent these issues, Ansible provides the no-prompting rule in Ansible-lint. This rule checks playbooks for the presence of vars_prompt or the ansible.builtin.pause module, which are prompts or pauses that can disrupt automation. By enabling this rule, you can identify and rectify any occurrences of these elements in your playbooks.
Enabling the Rule
To use the no-prompting rule, you need to enable it in your Ansible-lint configuration file. Here's an example of how to do it:
By adding this rule to your enable list, Ansible-lint will check your playbooks for prompts and pauses, helping you ensure they are suitable for automated execution.
Problematic Code
Here's an example of problematic code in an Ansible playbook:
In this code, user prompts for username and password are included using vars_prompt. Additionally, there's a pause task that halts playbook execution for 5 minutes.
Ansible Lint Output
Correct Code
The correct code, without the prompting and pausing, would look like this:
In the correct code, user prompts and pauses have been removed, making the playbook suitable for unattended execution in automated workflows.
Conclusion
The "no-prompting" rule in Ansible-lint is a valuable tool to ensure your Ansible playbooks are automation-friendly. By eliminating user prompts and pauses, you can create playbooks that seamlessly integrate into CI/CD pipelines, improving efficiency and reliability in your automation processes.
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Category: troubleshooting