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docs: document GCP e2-highcpu machine types for node groups #330

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14 changes: 14 additions & 0 deletions cloud-accounts/node-groups.mdx
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Expand Up @@ -54,6 +54,20 @@ You can modify the instance type for any node group from the Infrastructure sett
<Card title="GCP Instance Types" icon="google" href="https://cloud.google.com/compute/all-pricing#general_purpose" />
</CardGroup>

### GCP machine families

GKE clusters on Porter support the following general-purpose machine families. Use `e2-highcpu` for CPU-bound workloads (web servers, batch processing) that don't need much memory — it offers the lowest per-vCPU cost in the E2 family.

| Family | Best for | Example sizes |
|--------|----------|---------------|
| `e2-standard` | Balanced CPU and memory | `e2-standard-2` through `e2-standard-32` |
| `e2-highmem` | Memory-bound workloads (caches, in-memory databases) | `e2-highmem-2` through `e2-highmem-16` |
| `e2-highcpu` | CPU-bound workloads with low memory needs | `e2-highcpu-2` through `e2-highcpu-32` |
| `c3-standard` / `c3-highcpu` / `c3-highmem` | Compute-optimized workloads | `c3-standard-4` and larger |
| `g2-standard` | GPU workloads | `g2-standard-4` |

E2 machine types are available in all GCP regions Porter supports.

### Why is my instance type not available?

Instance types may not be available if:
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