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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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4
docs/flatcar-linux/azure.md
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@ -65,8 +65,8 @@ Additional configuration options are described in the `azurerm` provider [docs](
Flatcar Linux publishes images to the Azure Marketplace and requires accepting terms.
```
az vm image terms show --publish kinvolk --offer flatcar-container-linux-free --plan stable
az vm image terms accept --publish kinvolk --offer flatcar-container-linux-free --plan stable
az vm image terms accept --publish kinvolk --offer flatcar-container-linux-free --plan stable-gen2
```
## Cluster
@ -227,7 +227,7 @@ Reference the DNS zone with `azurerm_dns_zone.clusters.name` and its resource gr
| controller_count | Number of controllers (i.e. masters) | 1 | 1 |
| worker_count | Number of workers | 1 | 3 |
| controller_type | Machine type for controllers | "Standard_B2s" | See below |
| worker_type | Machine type for workers | "Standard_DS1_v2" | See below |
| worker_type | Machine type for workers | "Standard_D2as_v5" | See below |
| os_image | Channel for a Container Linux derivative | "flatcar-stable" | flatcar-stable, flatcar-beta, flatcar-alpha |
| disk_size | Size of the disk in GB | 30 | 100 |
| worker_priority | Set priority to Spot to use reduced cost surplus capacity, with the tradeoff that instances can be deallocated at any time | Regular | Spot |