HAProxy not found because apt cache not up to date (deployments-balancer)

When running the playbook for the “Deploying to app servers behind a load balancer” in chapter 9, the HAProxy role errors out because it can’t find haproxy package. I had to run ansible deployments -i inventory -a "sudo apt-get update" to update the apt cache and then ran the playbook again. It worked this time around. Might want to update the instructions to add that as a step somehow.

[MacFlurry]

Yeah sure, make sense on using package in that case. no pb 🥰

[geerlingguy]

@searsaw - Are you using this playbook? https://github.com/geerlingguy/ansible-for-devops/blob/master/deployments-balancer/playbooks/provision.yml

Almost every time I build a playbook for Ubuntu or Debian, I add a pre_tasks section with an apt cache update task. But it looks like I didn’t add that in this case. The example’s also using Ubuntu 14.04 currently, which is a bit out of date (I thought I had updated all examples to use at least 16.04!).

I will need to get this example updated to make it work better out of the box.

And @MacFlurry - sometimes I use a different module (like package in this case) to show how it can be done; in this case, I believe the haproxy package is the same across RHEL and Deb/Ubuntu, so using package is a more cross-platform-compatible way instead of specifying apt. (And thus why I usually have a separate task that manages apt caches, like here: https://github.com/geerlingguy/ansible-role-apache/blob/17af52011a07fd218eb740f861b3a70976d8f1cc/molecule/default/converge.yml#L14-L18)