ui: a compact host overview when facts are available (cpu, distro, disk/memory usage, load avg, etc.)

[dmsimard]

What is the idea ?

Filing this under nice to have because ara records host facts when Ansible gathers them so they are available but we are not doing much right now other than pretty printing them:

It's still better than nothing but there could -- perhaps -- be some sort of compact summary of the node if the facts are available. You can see an example of all the facts available on the demo: https://demo.recordsansible.org/hosts/11031.html

For example:

• We have a bunch of useful variables like ansible_distribution(_version), ansible_kernel, ansible_processor, ansible_python, etc.
• There's network information available with facts like ansible_default_ipv4 and for specific network interfaces (like ansible_br0)
• With ansible_memory_mb we know the amount of memory, how much is used, how much is free
• With ansible_mount we know about block devices, partitions, filesystems and disk usage
• With ansible_loadavg (starting in ansible-core 2.14) we know, well, the load avg.

The facts are not always gathered and even if they are, the ones we would use could be filtered out, so the implementation should be tolerant to missing facts or none at all.

It's just a nice to have when facts are available ? ¯\(ツ)/¯