Practice Terraform: provision real infrastructure in your browser

What you'll practice

• Writing infrastructure as code — resources, variables, and outputs in HCL.
• The core loop: plan, apply, destroy — and reading a plan before you run it.
• Provisioning web nodes, databases, and load balancers to scale a tier under load.
• Tearing down what you no longer need so budget isn't burning on idle infra.
• Thinking in desired state instead of hand-clicking servers into existence.

Config you'll actually write

When traffic spikes and the web tier is saturated, you don't SSH around — you scale declaratively and apply:

resource "web_node" "frontend" {
  count         = 4
  instance_type = "medium"
  region        = "us-east"
}

resource "load_balancer" "edge" {
  targets = web_node.frontend[*].id
  health_check {
    path     = "/health"
    interval = 10
  }
}

Why a simulator beats a tutorial

Following a Terraform walkthrough teaches you the syntax; it doesn't teach you when to scale, what to destroy, or how a bad apply takes a service down. Here your infrastructure has to survive the Chaos Engine and a real budget, so every apply is a decision with consequences — the way it works on a real platform team.

Keep going

Provisioning is half the job. Pair Terraform with Ansible automation for configuration, sharpen up for your SRE interview, and see the full deck on the SysAdmin Simulator home page.