Support Fedora CoreOS OS image streams on AWS

* Add `os_stream` variable to set the stream to stable (default),
testing, or next
* Remove unused os_image variable on Fedora CoreOS AWS

CHANGES.md

@@ -20,9 +20,15 @@ Notable changes between versions.
   * SELinux enforcement requires consistent file context MCS level
   * Restarting a node resolved the issue as a previous workaround
 
+#### AWS
+
+* Support Fedora CoreOS official [image streams](https://docs.fedoraproject.org/en-US/fedora-coreos/update-streams/) ([#727](https://github.com/poseidon/typhoon/pull/727))
+  * Add `os_stream` variable to set the stream to `stable` (default), `testing`, or `next`
+  * Remove unused `os_image` variable
+
 #### Google
 
-* Use new Fedora CoreOS official [image streams](https://docs.fedoraproject.org/en-US/fedora-coreos/update-streams/) ([#723](https://github.com/poseidon/typhoon/pull/722))
+* Support Fedora CoreOS official [image streams](https://docs.fedoraproject.org/en-US/fedora-coreos/update-streams/) ([#723](https://github.com/poseidon/typhoon/pull/722))
   * Add `os_stream` variable to set the stream to `stable` (default), `testing`, or `next`
   * Deprecate `os_image` variable. Manual image uploads are no longer needed
 

aws/fedora-coreos/kubernetes/ami.tf

@@ -13,16 +13,8 @@ data "aws_ami" "fedora-coreos" {
     values = ["hvm"]
   }
 
-  filter {
-    name   = "name"
-    values = ["fedora-coreos-31.*.*.*-hvm"]
-  }
-
   filter {
     name   = "description"
-    values = ["Fedora CoreOS stable*"]
+    values = ["Fedora CoreOS ${var.os_stream} *"]
   }
-
-  # try to filter out dev images (AWS filters can't)
-  name_regex = "^fedora-coreos-31.[0-9]*.[0-9]*.[0-9]*-hvm*"
 }

aws/fedora-coreos/kubernetes/variables.tf

@@ -41,9 +41,9 @@ variable "worker_type" {
   default     = "t3.small"
 }
 
-variable "os_image" {
+variable "os_stream" {
   type        = string
-  description = "AMI channel for Fedora CoreOS (not yet used)"
+  description = "Fedora CoreOs image stream for instances (e.g. stable, testing, next)"
   default     = "stable"
 }
 

aws/fedora-coreos/kubernetes/workers.tf

@@ -8,7 +8,7 @@ module "workers" {
   security_groups = [aws_security_group.worker.id]
   worker_count    = var.worker_count
   instance_type   = var.worker_type
-  os_image        = var.os_image
+  os_stream        = var.os_stream
   disk_size       = var.disk_size
   spot_price      = var.worker_price
   target_groups   = var.worker_target_groups

aws/fedora-coreos/kubernetes/workers/ami.tf

@@ -13,16 +13,8 @@ data "aws_ami" "fedora-coreos" {
     values = ["hvm"]
   }
 
-  filter {
-    name   = "name"
-    values = ["fedora-coreos-31.*.*.*-hvm"]
-  }
-
   filter {
     name   = "description"
-    values = ["Fedora CoreOS stable*"]
+    values = ["Fedora CoreOS ${var.os_stream} *"]
   }
-
-  # try to filter out dev images (AWS filters can't)
-  name_regex = "^fedora-coreos-31.[0-9]*.[0-9]*.[0-9]*-hvm*"
 }

aws/fedora-coreos/kubernetes/workers/variables.tf

@@ -34,9 +34,9 @@ variable "instance_type" {
   default     = "t3.small"
 }
 
-variable "os_image" {
+variable "os_stream" {
   type        = string
-  description = "AMI channel for Fedora CoreOS (not yet used)"
+  description = "Fedora CoreOs image stream for instances (e.g. stable, testing, next)"
   default     = "stable"
 }