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Switch to using Flatcar Linux images on Google Cloud

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* Use the official Kinvolk Flatcar Linux image on Google Cloud
* Change `os_image` from a custom image name to `flatcar-stable`
(default), `flatcar-beta`, or `flatcar-alpha` (**action required**)
* Change `os_image` from a required to an optional variable
* Promote Typhoon on Flatcar Linux / Google Cloud to stable
* Remove docs about needing to upload a Flatcar Linux image
manually on Google Cloud and drop support for custom images
This commit is contained in:
Dalton Hubble
2022-01-28 20:59:15 -08:00
parent a527f73f5a
commit e06ee042ee
11 changed files with 39 additions and 28 deletions
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22
docs/flatcar-linux/google-cloud.md
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@ -67,25 +67,6 @@ Additional configuration options are described in the `google` provider [docs](h
!!! tip
Regions are listed in [docs](https://cloud.google.com/compute/docs/regions-zones/regions-zones) or with `gcloud compute regions list`. A project may contain multiple clusters across different regions.
### Flatcar Linux Images
Flatcar Linux publishes Google Cloud images, but does not yet upload them. Google Cloud allows [custom boot images](https://cloud.google.com/compute/docs/images/import-existing-image) to be uploaded to a bucket and imported into your project.
[Download](https://www.flatcar-linux.org/releases/) the Flatcar Linux GCE gzipped tarball and upload it to a Google Cloud storage bucket.
```
gsutil list
gsutil cp flatcar_production_gce.tar.gz gs://BUCKET
```
Create a Compute Engine image from the file.
```
gcloud compute images create flatcar-linux-2303-4-0 --source-uri gs://BUCKET_NAME/flatcar_production_gce.tar.gz
```
Set the [os_image](#variables) in the next step.
## Cluster
Define a Kubernetes cluster using the module `google-cloud/flatcar-linux/kubernetes`.
@ -101,7 +82,6 @@ module "yavin" {
dns_zone_name = "example-zone"
# configuration
os_image = "flatcar-linux-2303-4-0"
ssh_authorized_key = "ssh-rsa AAAAB3Nz..."
# optional
@ -206,7 +186,6 @@ Check the [variables.tf](https://github.com/poseidon/typhoon/blob/master/google-
| region | Google Cloud region | "us-central1" |
| dns_zone | Google Cloud DNS zone | "google-cloud.example.com" |
| dns_zone_name | Google Cloud DNS zone name | "example-zone" |
| os_image | Container Linux image for compute instances | "flatcar-linux-2303-4-0" |
| ssh_authorized_key | SSH public key for user 'core' | "ssh-rsa AAAAB3NZ..." |
Check the list of valid [regions](https://cloud.google.com/compute/docs/regions-zones/regions-zones) and list Container Linux [images](https://cloud.google.com/compute/docs/images) with `gcloud compute images list | grep coreos`.
@ -236,6 +215,7 @@ resource "google_dns_managed_zone" "zone-for-clusters" {
| worker_count | Number of workers | 1 | 3 |
| controller_type | Machine type for controllers | "n1-standard-1" | See below |
| worker_type | Machine type for workers | "n1-standard-1" | See below |
| os_image | Flatcar Linux image for compute instances | "flatcar-stable" | flatcar-stable, flatcar-beta, flatcar-alpha |
| disk_size | Size of the disk in GB | 30 | 100 |
| worker_preemptible | If enabled, Compute Engine will terminate workers randomly within 24 hours | false | true |
| controller_snippets | Controller Container Linux Config snippets | [] | [example](/advanced/customization/) |