Fix #46: Add update cache for debian setup

[walbertus]

This role failed to install Redis on a fresh Debian machine.

[andyshinn]

What about cache_valid_time configured via default variable?

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This pull request has been marked 'stale' due to lack of recent activity. If there is no further activity, the PR will be closed in another 30 days. Thank you for your contribution!

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[walbertus]

Can you give an example? @andyshinn This PR will be considered stale without reviewed by the owner 😞

[stale[bot]]

This issue is no longer marked for closure.

[andyshinn]

I am suggesting something like:

--- ---
- name: Ensure Redis is installed.  - name: Ensure Redis is installed.
  apt:    apt:
    name: "{{ redis_package }}"     name: "{{ redis_package }}"
    state: present
    cache_valid_time: "{{ redis_cache_valid_time }}"

Then in vars/Debian.yml:

redis_cache_valid_time: 800

The redis_cache_valid_time will do the same as update_cache but will ignore updating if it has been done already recently (such as from another role or task).

[stale[bot]]

This pull request has been marked 'stale' due to lack of recent activity. If there is no further activity, the PR will be closed in another 30 days. Thank you for your contribution!

Please read this blog post to see the reasons why I mark pull requests as stale.

[stale[bot]]

This pull request has been closed due to inactivity. If you feel this is in error, please reopen the pull request or file a new PR with the relevant details.