Ansible playbook 查看服务器的内存使用情况

Question

I currently am trying to find out how to get the % of memory used on my server. Or at least some sort of information regarding the memory usage.

I know that by using the following

---

- hosts: all
  gather_facts: False
  tasks:
  - name: run uptime
    shell: uptime
    register: uptime
  - name: show uptime
    debug: var=uptime

I'm able to see the uptime, but not sure what I have to modify to see the memory? Even if I could see just the total memory of the server and the memory used it would be useful

Answer 1

You can try running something like this, you can get memory usage and other information,

- name: Hardware info
 vars:
  msg: |
   RAM: {{ ansible_memtotal_mb }}
   SWAP: {{ ansible_memory_mb.swap.total }}
 debug:
  msg: "{{ msg.split('\n') }}"

Or you can also try running some shell command using grep/awk or something like cat /proc/meminfo or vmstat to get the memory usage on your servers and grab them in some file or something via output of ansible.