add vale, including URL checks

.gitignore

@@ -76,6 +76,8 @@ target/
 # virtualenv
 venv/
 ENV/
+vale/styles/AsciiDoc/
+vale/styles/RedHat/
 
 # MkDocs documentation
 site/

.vale.ini

@@ -0,0 +1,12 @@
+StylesPath = vale/styles
+
+Packages = RedHat, AsciiDoc, BpgDocs
+
+# Ignore files in dirs starting with `.` to avoid raising errors for `.vale/fixtures/*/testinvalid.adoc` files
+[[!.]*.adoc]
+BasedOnStyles = RedHat, AsciiDoc, BpgDocs
+RedHat.GitLinks = OFF 
+AsciiDoc.UnsetAttributes = OFF 
+RedHat.CaseSensitiveTerms = suggestion
+RedHat.TermsErrors = warning
+RedHat.Spacing = warning

latest/bpg/autoscaling/index.adoc

@@ -15,7 +15,7 @@
 :info_titleabbrev: Cluster Autoscaling
 :imagesdir: images/
 
-This guide provides advice about Cluter Autoscaling, including guidance for Kubernetes Cluster Autoscaler and Karpenter. 
+This guide provides advice about Cluster Autoscaling, including guidance for Kubernetes Cluster Autoscaler and Karpenter. 
 
 [.topiclist]
 [[Topic List]]

vale/styles/BpgDocs/ApprovedUrls.yml

@@ -0,0 +1,31 @@
+extends: existence
+message: "External domain detected: '%s -- Review non-aws domains carefully"
+level: error
+scope: raw
+ignorecase: true
+tokens:
+  - '(?:^|\s)(https://[^\s]+)(?:$|\s)'
+exceptions:
+  - https://aws.github.io/
+  - https://kubernetes-sigs.github.io/
+  - https://aws-observability.github.io/
+  - https://github.com/aws/
+  - https://docs.aws.amazon.com/
+  - https://github.com/aws-samples/
+  - https://github.com/kubernetes/
+  - https://aws.amazon.com/
+  - https://repost.aws/
+  - https://github.com/bottlerocket-os/
+  - https://kubernetes.io/
+  - https://karpenter.sh/
+  - https://karpenter.sh
+  - https://anywhere.eks.amazonaws.com/
+  - https://aws-ia.github.io
+  - https://eksctl.io/
+  - https://catalog.workshops.aws/
+  - https://github.com/awslabs/
+  - https://console.aws.amazon.com/
+  - https://github.com/aws-controllers-k8s/
+  - https://raw.githubusercontent.com/aws-observability/
+  - https://github.com/kubernetes-sigs/
+  - https://d1.awsstatic.com/