Add: proxy_env variable

[AliMehraji]

Changes:

Add the proxy_env variable in:

• defaults/main.yml

Add environment for proxy needed tasks in:

• tasks/docker-compose.yml
• tasks/main.yml
• tasks/setup-Debian.yml
• tasks/setup-RedHat.yml

[geerlingguy]

This seems like a lot of changes to support something that may be able to be set on a wider level instead of per-task...

[AliMehraji]

This seems like a lot of changes to support something that may be able to be set on a wider level instead of per-task...

I agree that implementing this at the role level could offer a more streamlined approach. My initial intention was to apply it on a per-task basis to ensure it's only activated when specifically needed, thereby providing more granular control and avoiding unintended side effects across all tasks within the role.

However, I'm open to exploring a role-level configuration or any recommendation you might have. I’d appreciate your guidance on the best approach to align with our overall strategy and maintainability goals.

For instance:

The proxy environment is not needed in the Ensure old versions of Docker are not installed. task within tasks/setup-RedHat.yml, which is why I implemented it on a per-task basis.

[AliMehraji]

Additionally:

• Plan to update module references to use fully qualified collection names.
• Resolve other ansible-lint and yamllint warnings.

Do you have any recommendations or preferences for these changes?

Example:

• In handlers/main.yml, the service module would be updated to ansible.builtin.service
• In tasks/docker-users.yml, the user module would be updated to ansible.builtin.user