Configuring at scale.
WHY MANUAL CONFIGURATION FAILS AT SCALE
Devices drift apart, mistakes are inevitable, and nobody knows the current state.
WHAT AUTOMATION PROVIDES
Consistency Speed A record of every change Review before application
WHAT TO AUTOMATE FIRST
Reading configuration, and comparing it against expectation.
WHY THAT FIRST
It reveals drift without risk.
WHAT TO AUTOMATE NEXT
Generating configuration from a source of truth.
WHAT A SOURCE OF TRUTH IS
A system defining what should exist: devices, addresses, connections, policy.
WHY IT MATTERS MOST
Without one, automation encodes whatever exists rather than what should.
WHAT TO GENERATE
Configuration, from templates and that data.
WHAT TO ALWAYS PROVIDE
A preview of what would change, before applying.
WHAT TO NEVER DO
Apply generated configuration to every device simultaneously.
WHY
A template error affects everything at once.
WHAT TO DO INSTEAD
Apply progressively, verifying as you go.
WHAT TO KEEP
Configuration backups, taken automatically and versioned.
WHAT TO TEST
Restoring a device from backup.
