CUE vs Ansible

Exploring the following topics:

• Comparing CUE with Ansible
• Migrating from Ansible to CUE
  • Using CUE to validate Ansible host variables
  • Migrating Jinja template to CUE and using CUE scripting for inventory management.
  • Data transformation with CUE

Resource Utilisation Comparison

Memory utilisation is measured with mprof since time doesn't catch the memory used by Ansible's forked processes.

Configuring a single device

Average CPU, time and max peak memory over 10 measurements:

A/C	CPU%	Max Mem (MB)	Time (mm:ss.0)
Ansible (HTTP)	82	131.820	00:02.7
CUE (API)	17	24.504	00:01.2

Configuring 20 devices

Average CPU, time and max peak memory over 10 measurements:

A/C	CPU%	Max Mem (MB)	Time (mm:ss.0)
CUE API	114	155.230	00:03.2
CUE SSH	10	208.504	00:08.3
Ansible (HTTP)	157	1927.906	00:10.7
Ansible (SSH)	32	1175.422	00:08.3