Compute Virtual Machines
Virtual Machines
A VM gives you an isolated OS environment—max control, max operational responsibility.
How VM-based deployment typically works
A pragmatic mental model for system design interviews and real systems
Step 1 of 4 25% complete
Step 1
Provision a VM
Allocate a virtual machine with CPU/RAM/disk from a cloud or hypervisor.
Technical Details
You manage the OS, patches, package installs, and runtime configuration.
Pro Tip
Bake an image (AMI) and use autoscaling groups for repeatability.
When VMs shine
- Legacy apps that expect full OS control
- Specialized kernel / drivers / networking
- Long-running services with predictable load
Common pitfalls
- Config drift without automation (IaC + images)
- Snowflake servers (manual fixes)
- Slow patching and inconsistent security posture