Switch to using Flatcar Linux images on Google Cloud
* 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
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@ -8,6 +8,14 @@ Notable changes between versions.
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* Kubernetes [v1.23.3](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.23.md#v1233)
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### Flatcar Linux
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#### Google Cloud
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* Switch to using official Kinvolk Flatcar Linux images
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* Promote Typhoon on Flatcar Linux / Google Cloud to stable
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* Change `os_image` to `flatcar-stable`, `flatcar-beta`, or `flatcar-alpha` (**action required**)
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## v1.23.2
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* Kubernetes [v1.23.2](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.23.md#v1232)
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@ -43,7 +43,7 @@ Typhoon is available for [Flatcar Linux](https://www.flatcar-linux.org/releases/
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| Azure | Flatcar Linux | [azure/flatcar-linux/kubernetes](azure/flatcar-linux/kubernetes) | alpha |
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| Bare-Metal | Flatcar Linux | [bare-metal/flatcar-linux/kubernetes](bare-metal/flatcar-linux/kubernetes) | stable |
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| DigitalOcean | Flatcar Linux | [digital-ocean/flatcar-linux/kubernetes](digital-ocean/flatcar-linux/kubernetes) | beta |
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| Google Cloud | Flatcar Linux | [google-cloud/flatcar-linux/kubernetes](google-cloud/flatcar-linux/kubernetes) | beta |
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| Google Cloud | Flatcar Linux | [google-cloud/flatcar-linux/kubernetes](google-cloud/flatcar-linux/kubernetes) | stable |
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| Platform | Operating System | Terraform Module | Status |
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|---------------|------------------|------------------|--------|
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@ -246,7 +246,7 @@ Create a cluster following the Google Cloud [tutorial](../flatcar-linux/google-c
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# optional
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worker_count = 2
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machine_type = "n1-standard-16"
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os_image = "flatcar-linux-2303-4-0" # custom
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os_image = "flatcar-stable"
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preemptible = true
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}
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```
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@ -67,25 +67,6 @@ Additional configuration options are described in the `google` provider [docs](h
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!!! tip
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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.
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### Flatcar Linux Images
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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.
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[Download](https://www.flatcar-linux.org/releases/) the Flatcar Linux GCE gzipped tarball and upload it to a Google Cloud storage bucket.
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```
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gsutil list
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gsutil cp flatcar_production_gce.tar.gz gs://BUCKET
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```
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Create a Compute Engine image from the file.
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```
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gcloud compute images create flatcar-linux-2303-4-0 --source-uri gs://BUCKET_NAME/flatcar_production_gce.tar.gz
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```
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Set the [os_image](#variables) in the next step.
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## Cluster
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Define a Kubernetes cluster using the module `google-cloud/flatcar-linux/kubernetes`.
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@ -101,7 +82,6 @@ module "yavin" {
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dns_zone_name = "example-zone"
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# configuration
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os_image = "flatcar-linux-2303-4-0"
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ssh_authorized_key = "ssh-rsa AAAAB3Nz..."
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# optional
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@ -206,7 +186,6 @@ Check the [variables.tf](https://github.com/poseidon/typhoon/blob/master/google-
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| region | Google Cloud region | "us-central1" |
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| dns_zone | Google Cloud DNS zone | "google-cloud.example.com" |
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| dns_zone_name | Google Cloud DNS zone name | "example-zone" |
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| os_image | Container Linux image for compute instances | "flatcar-linux-2303-4-0" |
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| ssh_authorized_key | SSH public key for user 'core' | "ssh-rsa AAAAB3NZ..." |
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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`.
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@ -236,6 +215,7 @@ resource "google_dns_managed_zone" "zone-for-clusters" {
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| worker_count | Number of workers | 1 | 3 |
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| controller_type | Machine type for controllers | "n1-standard-1" | See below |
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| worker_type | Machine type for workers | "n1-standard-1" | See below |
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| os_image | Flatcar Linux image for compute instances | "flatcar-stable" | flatcar-stable, flatcar-beta, flatcar-alpha |
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| disk_size | Size of the disk in GB | 30 | 100 |
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| worker_preemptible | If enabled, Compute Engine will terminate workers randomly within 24 hours | false | true |
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| controller_snippets | Controller Container Linux Config snippets | [] | [example](/advanced/customization/) |
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@ -43,7 +43,7 @@ Typhoon is available for [Flatcar Linux](https://www.flatcar-linux.org/releases/
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| Azure | Flatcar Linux | [azure/flatcar-linux/kubernetes](flatcar-linux/azure.md) | alpha |
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| Bare-Metal | Flatcar Linux | [bare-metal/flatcar-linux/kubernetes](flatcar-linux/bare-metal.md) | stable |
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| DigitalOcean | Flatcar Linux | [digital-ocean/flatcar-linux/kubernetes](flatcar-linux/digitalocean.md) | beta |
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| Google Cloud | Flatcar Linux | [google-cloud/flatcar-linux/kubernetes](flatcar-linux/google-cloud.md) | beta |
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| Google Cloud | Flatcar Linux | [google-cloud/flatcar-linux/kubernetes](flatcar-linux/google-cloud.md) | stable |
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| Platform | Operating System | Terraform Module | Status |
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|---------------|------------------|------------------|--------|
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@ -42,7 +42,7 @@ resource "google_compute_instance" "controllers" {
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auto_delete = true
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initialize_params {
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image = var.os_image
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image = data.google_compute_image.flatcar-linux.self_link
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size = var.disk_size
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}
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}
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@ -0,0 +1,6 @@
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# Flatcar Linux most recent image from channel
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data "google_compute_image" "flatcar-linux" {
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project = "kinvolk-public"
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family = "${var.os_image}"
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}
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@ -48,7 +48,13 @@ variable "worker_type" {
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variable "os_image" {
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type = string
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description = "Flatcar Linux image for compute instances (e.g. custom-image)"
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description = "Flatcar Linux image for compute instances (flatcar-stable, flatcar-beta, flatcar-alpha)"
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default = "flatcar-stable"
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validation {
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condition = contains(["flatcar-stable", "flatcar-beta", "flatcar-alpha"], var.os_image)
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error_message = "The os_image must be flatcar-stable, flatcar-beta, or flatcar-alpha."
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}
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}
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variable "disk_size" {
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@ -0,0 +1,5 @@
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# Flatcar Linux most recent image from channel
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data "google_compute_image" "flatcar-linux" {
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project = "kinvolk-public"
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family = "${var.os_image}"
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}
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@ -36,7 +36,13 @@ variable "machine_type" {
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variable "os_image" {
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type = string
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description = "Flatcar Linux image for compute instanges (e.g. gcloud compute images list)"
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description = "Flatcar Linux image for compute instances (flatcar-stable, flatcar-beta, flatcar-alpha)"
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default = "flatcar-stable"
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validation {
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condition = contains(["flatcar-stable", "flatcar-beta", "flatcar-alpha"], var.os_image)
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error_message = "The os_image must be flatcar-stable, flatcar-beta, or flatcar-alpha."
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}
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}
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variable "disk_size" {
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disk {
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auto_delete = true
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boot = true
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source_image = var.os_image
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source_image = data.google_compute_image.flatcar-linux.self_link
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disk_size_gb = var.disk_size
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}
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