Allow marking some blog posts as evergreen and exempt from outdated w…

…arning
kubernetes · Feb 27, 2022 · 89a8e9b · 89a8e9b
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diff --git a/content/en/blog/_posts/2019-12-09-kubernetes-1.17-release-announcement.md b/content/en/blog/_posts/2019-12-09-kubernetes-1.17-release-announcement.md
@@ -3,6 +3,7 @@ layout: blog
 title: "Kubernetes 1.17: Stability"
 date: 2019-12-09T13:00:00-08:00
 slug: kubernetes-1-17-release-announcement
+evergreen: true
 ---
 
 **Authors:** [Kubernetes 1.17 Release Team](https://github.com/kubernetes/sig-release/blob/master/releases/release-1.17/release_team.md)

diff --git a/content/en/blog/_posts/2020-03-25-kubernetes-1.18-release-announcement.md b/content/en/blog/_posts/2020-03-25-kubernetes-1.18-release-announcement.md
@@ -3,6 +3,7 @@ layout: blog
 title: 'Kubernetes 1.18: Fit & Finish'
 date: 2020-03-25
 slug: kubernetes-1-18-release-announcement
+evergreen: true
 ---
 
 **Authors:** [Kubernetes 1.18 Release Team](https://github.com/kubernetes/sig-release/blob/master/releases/release-1.18/release_team.md)

diff --git a/content/en/blog/_posts/2020-08-26-kubernetes-release-1.19.md b/content/en/blog/_posts/2020-08-26-kubernetes-release-1.19.md
@@ -3,6 +3,7 @@ layout: blog
 title: 'Kubernetes  1.19: Accentuate the Paw-sitive'
 date: 2020-08-26
 slug: kubernetes-release-1.19-accentuate-the-paw-sitive
+evergreen: true
 ---
 
 **Authors:** [Kubernetes 1.19 Release Team](https://github.com/kubernetes/sig-release/blob/master/releases/release-1.19/release_team.md)

diff --git a/content/en/blog/_posts/2020-09-03-warnings/index.md b/content/en/blog/_posts/2020-09-03-warnings/index.md
@@ -3,6 +3,7 @@ layout: blog
 title: "Warning: Helpful Warnings Ahead"
 date: 2020-09-03
 slug: warnings
+evergreen: true
 ---
 
 **Author**: Jordan Liggitt (Google)

diff --git a/content/en/blog/_posts/2020-12-08-kubernetes-release-1.20.md b/content/en/blog/_posts/2020-12-08-kubernetes-release-1.20.md
@@ -3,6 +3,7 @@ layout: blog
 title: 'Kubernetes 1.20: The Raddest Release'
 date: 2020-12-08
 slug: kubernetes-1-20-release-announcement
+evergreen: true
 ---
 
 **Authors:** [Kubernetes 1.20 Release Team](https://github.com/kubernetes/sig-release/blob/master/releases/release-1.20/release_team.md)

diff --git a/content/en/blog/_posts/2021-04-08-kubernetes-release-1.21.md b/content/en/blog/_posts/2021-04-08-kubernetes-release-1.21.md
@@ -3,6 +3,7 @@ layout: blog
 title: 'Kubernetes 1.21: Power to the Community'
 date: 2021-04-08
 slug: kubernetes-1-21-release-announcement
+evergreen: true
 ---
 
 **Authors:** [Kubernetes 1.21 Release Team](https://github.com/kubernetes/sig-release/blob/master/releases/release-1.21/release-team.md)

diff --git a/content/en/blog/_posts/2021-08-04-kubernetes-release-1.22.md b/content/en/blog/_posts/2021-08-04-kubernetes-release-1.22.md
@@ -3,6 +3,7 @@ layout: blog
 title: 'Kubernetes 1.22: Reaching New Peaks'
 date: 2021-08-04
 slug: kubernetes-1-22-release-announcement
+evergreen: true
 ---
 
 **Authors:** [Kubernetes 1.22 Release Team](https://github.com/kubernetes/sig-release/blob/master/releases/release-1.22/release-team.md)

diff --git a/content/en/blog/_posts/2021-12-07-kubernetes-release-1.23.md b/content/en/blog/_posts/2021-12-07-kubernetes-release-1.23.md
@@ -3,6 +3,7 @@ layout: blog
 title: 'Kubernetes 1.23: The Next Frontier'
 date: 2021-12-07
 slug: kubernetes-1-23-release-announcement
+evergreen: true
 ---
 
 **Authors:** [Kubernetes 1.23 Release Team](https://github.com/kubernetes/sig-release/blob/master/releases/release-1.23/release-team.md)

diff --git a/content/en/docs/contribute/new-content/blogs-case-studies.md b/content/en/docs/contribute/new-content/blogs-case-studies.md
@@ -83,6 +83,15 @@ To submit a blog post follow these directions:
       - _initial commit_
       - _draft post_
   - The blog team will then review your PR and give you comments on things you might need to fix. After that the bot will merge your PR and your blog post will be published. 
+  - If the content of the blog post contains only content that is not expected to require updates to stay accurate for the reader, it can be marked as evergreen and exempted from the automatic warning about outdated content added to blog posts older than one year.
+    - To mark a blog post as evergreen, add this to the front matter:
+
+      ```yaml
+      evergreen: true
+      ```
+    - Examples of content that should not be marked evergreen:
+      - Tutorials referencing specific releases or versions
+      - References to pre-GA APIs or features
 
 
 ## Submit a case study

diff --git a/layouts/partials/deprecation-warning.html b/layouts/partials/deprecation-warning.html
@@ -9,7 +9,7 @@ <h3>
     </p>
   </div>
 </section>
-{{ else if and (eq .Section "blog") .Date (.Date.Before (now.AddDate -1 0 0)) -}}
+{{ else if and (eq .Section "blog") (not .Params.evergreen) .Date (.Date.Before (now.AddDate -1 0 0)) -}}
 <section id="deprecation-warning">
   <div class="content deprecation-warning pageinfo outdated-blog">
     <h3>{{ T "outdated_blog__title" }}</h3>