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Add guide for Typhoon with Flatcar Linux on DigitalOcean
* Add docs on manually uploading a Flatcar Linux DigitalOcean bin image as a custom image and using a data reference * Set status of Flatcar Linux on DigitalOcean to alpha * IPv6 is not supported for DigitalOcean custom images
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Dalton Hubble
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@ -4,6 +4,10 @@ Notable changes between versions.
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## Latest
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#### DigitalOcean
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* Add support for Flatcar Container Linux ([#644](https://github.com/poseidon/typhoon/pull/644))
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## v1.17.3
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* Kubernetes [v1.17.3](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.17.md#v1173)
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@ -23,8 +27,8 @@ Notable changes between versions.
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#### Google Cloud
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* Add initial Terraform module for Fedora CoreOS ([#632](https://github.com/poseidon/typhoon/pull/632))
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* Add initial support for Flatcar Container Linux ([#639](https://github.com/poseidon/typhoon/pull/639))
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* Add Terraform module for Fedora CoreOS ([#632](https://github.com/poseidon/typhoon/pull/632))
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* Add support for Flatcar Container Linux ([#639](https://github.com/poseidon/typhoon/pull/639))
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#### Addons
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@ -44,6 +44,7 @@ Typhoon is available for [Flatcar Container Linux](https://www.flatcar-linux.org
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| AWS | Flatcar Linux | [aws/container-linux/kubernetes](aws/container-linux/kubernetes) | stable |
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| Bare-Metal | Flatcar Linux | [bare-metal/container-linux/kubernetes](bare-metal/container-linux/kubernetes) | stable |
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| Google Cloud | Flatcar Linux | [google-cloud/container-linux/kubernetes](google-cloud/container-linux/kubernetes) | alpha |
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| Digital Ocean | Flatcar Linux | [digital-ocean/container-linux/kubernetes](digital-ocean/container-linux/kubernetes) | alpha |
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## Documentation
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@ -1,3 +1,8 @@
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locals {
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official_images = ["coreos-stable", "coreos-beta", "coreos-alpha"]
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is_official_image = contains(local.official_images, var.image)
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}
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# Controller Instance DNS records
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resource "digitalocean_record" "controllers" {
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count = var.controller_count
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@ -41,7 +46,8 @@ resource "digitalocean_droplet" "controllers" {
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size = var.controller_type
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# network
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ipv6 = true
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# only official DigitalOcean images support IPv6
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ipv6 = local.is_official_image
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private_networking = true
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user_data = data.ct_config.controller-ignitions.*.rendered[count.index]
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@ -12,7 +12,8 @@ resource "digitalocean_record" "workers-record-a" {
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}
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resource "digitalocean_record" "workers-record-aaaa" {
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count = var.worker_count
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# only official DigitalOcean images support IPv6
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count = local.is_official_image ? var.worker_count : 0
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# DNS zone where record should be created
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domain = var.dns_zone
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@ -34,7 +35,8 @@ resource "digitalocean_droplet" "workers" {
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size = var.worker_type
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# network
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ipv6 = true
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# only official DigitalOcean images support IPv6
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ipv6 = local.is_official_image
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private_networking = true
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user_data = data.ct_config.worker-ignition.rendered
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@ -71,6 +71,7 @@ module "nemo" {
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cluster_name = "nemo"
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region = "nyc3"
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dns_zone = "digital-ocean.example.com"
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image = "coreos-stable"
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# configuration
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ssh_fingerprints = ["d7:9d:79:ae:56:32:73:79:95:88:e3:a2:ab:5d:45:e7"]
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@ -82,6 +83,28 @@ module "nemo" {
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Reference the [variables docs](#variables) or the [variables.tf](https://github.com/poseidon/typhoon/blob/master/digital-ocean/container-linux/kubernetes/variables.tf) source.
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### Flatcar Linux Only
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!!! warning
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Typhoon for Flatcar Linux on DigitalOcean is alpha. Also IPv6 is unsupported with DigitalOcean custom images.
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Flatcar Linux publishes DigitalOcean images, but does not upload them. DigitalOcean allows [custom boot images](https://blog.digitalocean.com/custom-images/) by file or URL.
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[Download](https://www.flatcar-linux.org/releases/) the Flatcar Linux DigitalOcean bin image (or copy the URL) and [upload](https://cloud.digitalocean.com/images/custom_images) it as a custom image. Rename the image with the channel and version to refer to these images over time.
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```tf
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module "nemo" {
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...
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image = data.digitalocean_image.flatcar-stable.id
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}
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data "digitalocean_image" "flatcar-stable" {
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name = "flatcar-stable-2303.4.0.bin.bz2"
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}
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```
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Set the [image](#variables) to the custom image id.
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## ssh-agent
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Initial bootstrapping requires `bootstrap.service` be started on one controller node. Terraform uses `ssh-agent` to automate this step. Add your SSH private key to `ssh-agent`.
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@ -224,7 +247,7 @@ Digital Ocean requires the SSH public key be uploaded to your account, so you ma
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| worker_count | Number of workers | 1 | 3 |
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| controller_type | Droplet type for controllers | "s-2vcpu-2gb" | s-2vcpu-2gb, s-2vcpu-4gb, s-4vcpu-8gb, ... |
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| worker_type | Droplet type for workers | "s-1vcpu-2gb" | s-1vcpu-2gb, s-2vcpu-2gb, ... |
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| image | Container Linux image for instances | "coreos-stable" | coreos-stable, coreos-beta, coreos-alpha |
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| image | Container Linux image for instances | "coreos-stable" | coreos-stable, coreos-beta, coreos-alpha, "custom-image-id" |
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| controller_clc_snippets | Controller Container Linux Config snippets | [] | [example](/advanced/customization/) |
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| worker_clc_snippets | Worker Container Linux Config snippets | [] | [example](/advanced/customization/) |
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| networking | Choice of networking provider | "calico" | "flannel" or "calico" |
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@ -89,15 +89,12 @@ module "yavin" {
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Reference the [variables docs](#variables) or the [variables.tf](https://github.com/poseidon/typhoon/blob/master/google-cloud/container-linux/kubernetes/variables.tf) source.
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### Flatcar Linux Images
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### Flatcar Linux Only
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!!! success
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Skip this section when using CoreOS Container Linux (default). CoreOS Container Linux publishes official images to Google Cloud.
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!!! danger
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!!! warning
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Typhoon for Flatcar Linux on Google Cloud is alpha.
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Flatcar Linux publishes images for Google Cloud, 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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Flatcar Linux publishes Google Cloud images, but does not 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 a 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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@ -44,6 +44,7 @@ Typhoon is available for [Flatcar Container Linux](https://www.flatcar-linux.org
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| AWS | Flatcar Linux | [aws/container-linux/kubernetes](cl/aws.md) | stable |
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| Bare-Metal | Flatcar Linux | [bare-metal/container-linux/kubernetes](cl/bare-metal.md) | stable |
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| Google Cloud | Flatcar Linux | [google-cloud/container-linux/kubernetes](cl/google-cloud.md) | alpha |
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| Digital Ocean | Flatcar Linux | [digital-ocean/container-linux/kubernetes](cl/digital-ocean.md) | alpha |
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## Documentation
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