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Switch to Flatcar Azure gen2 images and change worker type

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* Switch from Azure Hypervisor generation 1 to generation 2
* Change default Azure `worker_type` from Standard_DS1_v2 to Standard_D2as_v5
  * Get 2 VCPU, 7 GiB, 12500Mbps (vs 1 VCPU, 3.5GiB, 750 Mbps)
  * Small increase in pay-as-you-go price ($53.29 -> $62.78)
  * Small increase in spot price ($5.64/mo -> $7.37/mo)
  * Change from Intel to AMD EPYC (`D2as_v5` cheaper than `D2s_v5`)

Notes: Azure makes you accept terms for each plan:

```
az vm image terms accept --publish kinvolk --offer flatcar-container-linux-free --plan stable-gen2
```

Rel:

* https://learn.microsoft.com/en-us/azure/virtual-machines/dasv5-dadsv5-series#dasv5-series
* https://learn.microsoft.com/en-us/azure/virtual-machines/dv2-dsv2-series#dsv2-series
This commit is contained in:
Dalton Hubble
2022-10-13 09:47:45 -07:00
parent 675ac63159
commit 8d2c8b8db6
7 changed files with 27 additions and 17 deletions
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docs/advanced/worker-pools.md
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@ -189,7 +189,7 @@ The Azure internal `workers` module supports a number of [variables](https://git
| Name | Description | Default | Example |
|:-----|:------------|:--------|:--------|
| worker_count | Number of instances | 1 | 3 |
| vm_type | Machine type for instances | "Standard_DS1_v2" | See below |
| vm_type | Machine type for instances | "Standard_D2as_v5" | See below |
| os_image | Channel for a Container Linux derivative | "flatcar-stable" | flatcar-stable, flatcar-beta, flatcar-alpha |
| priority | Set priority to Spot to use reduced cost surplus capacity, with the tradeoff that instances can be deallocated at any time | "Regular" | "Spot" |
| snippets | Container Linux Config snippets | [] | [examples](/advanced/customization/) |