Added note to the deploy.md (on all versions) to make people aware th…

…at only a single metric server can handle external.metrics.k8s.io per cluster Signed-off-by: Martijn <[email protected]>
kedacore · Dec 6, 2023 · 5f2b134 · 5f2b134
1 parent acc0b2c
commit 5f2b134
Show file tree

Hide file tree

Showing 16 changed files with 81 additions and 3 deletions.
diff --git a/content/docs/1.4/deploy.md b/content/docs/1.4/deploy.md
@@ -8,6 +8,12 @@ We provide a few approaches to deploy KEDA runtime in your Kubernetes clusters:
 - [Operator Hub](#operatorhub)
 - [YAML declarations](#yaml)
 
+> 💡 **NOTE:** Kubernetes currently only supports one metric server serving external.metrics.k8s.io metrics per cluster. This is because only one API Service can be registered to handle external metrics.
+>
+> After installing KEDA, any other metric servers that you have installed will no longer be able to serve external metrics.
+>
+> There is an [open proposal](https://github.com/kubernetes-sigs/custom-metrics-apiserver/issues/70) to allow multiple metric servers in the same cluster, but it's not implemented yet.
+
 Don't see what you need? Feel free to [create an issue](https://github.com/kedacore/keda/issues/new) on our GitHub repo.
 
 ## Deploying with Helm {#helm}

diff --git a/content/docs/1.5/deploy.md b/content/docs/1.5/deploy.md
@@ -8,6 +8,12 @@ We provide a few approaches to deploy KEDA runtime in your Kubernetes clusters:
 - [Operator Hub](#operatorhub)
 - [YAML declarations](#yaml)
 
+> 💡 **NOTE:** Kubernetes currently only supports one metric server serving external.metrics.k8s.io metrics per cluster. This is because only one API Service can be registered to handle external metrics.
+>
+> After installing KEDA, any other metric servers that you have installed will no longer be able to serve external metrics.
+>
+> There is an [open proposal](https://github.com/kubernetes-sigs/custom-metrics-apiserver/issues/70) to allow multiple metric servers in the same cluster, but it's not implemented yet.
+
 Don't see what you need? Feel free to [create an issue](https://github.com/kedacore/keda/issues/new) on our GitHub repo.
 
 ## Deploying with Helm {#helm}

diff --git a/content/docs/2.0/deploy.md b/content/docs/2.0/deploy.md
@@ -130,4 +130,4 @@ To uninstall KEDA in MicroK8s, simply disable the addon as shown below.
 
 ```sh
 microk8s disable keda
-```
+```
diff --git a/content/docs/2.1/deploy.md b/content/docs/2.1/deploy.md
@@ -127,4 +127,4 @@ To uninstall KEDA in MicroK8s, simply disable the addon as shown below.
 
 ```sh
 microk8s disable keda
-```
+```
diff --git a/content/docs/2.10/deploy.md b/content/docs/2.10/deploy.md
@@ -10,6 +10,12 @@ We provide a few approaches to deploy KEDA runtime in your Kubernetes clusters:
 
 > 💡 **NOTE:** KEDA requires Kubernetes cluster version 1.24 and higher
 
+> 💡 **NOTE:** Kubernetes currently only supports one metric server serving external.metrics.k8s.io metrics per cluster. This is because only one API Service can be registered to handle external metrics.
+>
+> After installing KEDA, any other metric servers that you have installed will no longer be able to serve external metrics.
+>
+> There is an [open proposal](https://github.com/kubernetes-sigs/custom-metrics-apiserver/issues/70) to allow multiple metric servers in the same cluster, but it's not implemented yet.
+
 Don't see what you need? Feel free to [create an issue](https://github.com/kedacore/keda/issues/new) on our GitHub repo.
 
 ## Deploying with Helm {#helm}

diff --git a/content/docs/2.11/deploy.md b/content/docs/2.11/deploy.md
@@ -10,6 +10,12 @@ We provide a few approaches to deploy KEDA runtime in your Kubernetes clusters:
 
 > 💡 **NOTE:** KEDA requires Kubernetes cluster version 1.24 and higher
 
+> 💡 **NOTE:** Kubernetes currently only supports one metric server serving external.metrics.k8s.io metrics per cluster. This is because only one API Service can be registered to handle external metrics.
+>
+> After installing KEDA, any other metric servers that you have installed will no longer be able to serve external metrics.
+>
+> There is an [open proposal](https://github.com/kubernetes-sigs/custom-metrics-apiserver/issues/70) to allow multiple metric servers in the same cluster, but it's not implemented yet.
+
 Don't see what you need? Feel free to [create an issue](https://github.com/kedacore/keda/issues/new) on our GitHub repo.
 
 ## Deploying with Helm {#helm}

diff --git a/content/docs/2.12/deploy.md b/content/docs/2.12/deploy.md
@@ -10,6 +10,12 @@ We provide a few approaches to deploy KEDA runtime in your Kubernetes clusters:
 
 > 💡 **NOTE:** KEDA requires Kubernetes cluster version 1.24 and higher
 
+> 💡 **NOTE:** Kubernetes currently only supports one metric server serving external.metrics.k8s.io metrics per cluster. This is because only one API Service can be registered to handle external metrics.
+>
+> After installing KEDA, any other metric servers that you have installed will no longer be able to serve external metrics.
+>
+> There is an [open proposal](https://github.com/kubernetes-sigs/custom-metrics-apiserver/issues/70) to allow multiple metric servers in the same cluster, but it's not implemented yet.
+
 Don't see what you need? Feel free to [create an issue](https://github.com/kedacore/keda/issues/new) on our GitHub repo.
 
 ## Deploying with Helm {#helm}

diff --git a/content/docs/2.13/deploy.md b/content/docs/2.13/deploy.md
@@ -10,6 +10,12 @@ We provide a few approaches to deploy KEDA runtime in your Kubernetes clusters:
 
 > 💡 **NOTE:** KEDA requires Kubernetes cluster version 1.24 and higher
 
+> 💡 **NOTE:** Kubernetes currently only supports one metric server serving external.metrics.k8s.io metrics per cluster. This is because only one API Service can be registered to handle external metrics.
+>
+> After installing KEDA, any other metric servers that you have installed will no longer be able to serve external metrics.
+>
+> There is an [open proposal](https://github.com/kubernetes-sigs/custom-metrics-apiserver/issues/70) to allow multiple metric servers in the same cluster, but it's not implemented yet.
+
 Don't see what you need? Feel free to [create an issue](https://github.com/kedacore/keda/issues/new) on our GitHub repo.
 
 ## Deploying with Helm {#helm}

diff --git a/content/docs/2.2/deploy.md b/content/docs/2.2/deploy.md
@@ -10,6 +10,12 @@ We provide a few approaches to deploy KEDA runtime in your Kubernetes clusters:
 
 > 💡 **NOTE:** KEDA requires Kubernetes cluster version 1.16 and higher
 
+> 💡 **NOTE:** Kubernetes currently only supports one metric server serving external.metrics.k8s.io metrics per cluster. This is because only one API Service can be registered to handle external metrics.
+>
+> After installing KEDA, any other metric servers that you have installed will no longer be able to serve external metrics.
+>
+> There is an [open proposal](https://github.com/kubernetes-sigs/custom-metrics-apiserver/issues/70) to allow multiple metric servers in the same cluster, but it's not implemented yet.
+
 Don't see what you need? Feel free to [create an issue](https://github.com/kedacore/keda/issues/new) on our GitHub repo.
 
 ## Deploying with Helm {#helm}

diff --git a/content/docs/2.3/deploy.md b/content/docs/2.3/deploy.md
@@ -121,4 +121,4 @@ To uninstall KEDA in MicroK8s, simply disable the addon as shown below.
 
 ```sh
 microk8s disable keda
-```
+```
diff --git a/content/docs/2.4/deploy.md b/content/docs/2.4/deploy.md
@@ -10,6 +10,12 @@ We provide a few approaches to deploy KEDA runtime in your Kubernetes clusters:
 
 > 💡 **NOTE:** KEDA requires Kubernetes cluster version 1.16 and higher
 
+> 💡 **NOTE:** Kubernetes currently only supports one metric server serving external.metrics.k8s.io metrics per cluster. This is because only one API Service can be registered to handle external metrics.
+>
+> After installing KEDA, any other metric servers that you have installed will no longer be able to serve external metrics.
+>
+> There is an [open proposal](https://github.com/kubernetes-sigs/custom-metrics-apiserver/issues/70) to allow multiple metric servers in the same cluster, but it's not implemented yet.
+
 Don't see what you need? Feel free to [create an issue](https://github.com/kedacore/keda/issues/new) on our GitHub repo.
 
 ## Deploying with Helm {#helm}

diff --git a/content/docs/2.5/deploy.md b/content/docs/2.5/deploy.md
@@ -10,6 +10,12 @@ We provide a few approaches to deploy KEDA runtime in your Kubernetes clusters:
 
 > 💡 **NOTE:** KEDA requires Kubernetes cluster version 1.16 and higher
 
+> 💡 **NOTE:** Kubernetes currently only supports one metric server serving external.metrics.k8s.io metrics per cluster. This is because only one API Service can be registered to handle external metrics.
+>
+> After installing KEDA, any other metric servers that you have installed will no longer be able to serve external metrics.
+>
+> There is an [open proposal](https://github.com/kubernetes-sigs/custom-metrics-apiserver/issues/70) to allow multiple metric servers in the same cluster, but it's not implemented yet.
+
 Don't see what you need? Feel free to [create an issue](https://github.com/kedacore/keda/issues/new) on our GitHub repo.
 
 ## Deploying with Helm {#helm}

diff --git a/content/docs/2.6/deploy.md b/content/docs/2.6/deploy.md
@@ -10,6 +10,12 @@ We provide a few approaches to deploy KEDA runtime in your Kubernetes clusters:
 
 > 💡 **NOTE:** KEDA requires Kubernetes cluster version 1.16 and higher
 
+> 💡 **NOTE:** Kubernetes currently only supports one metric server serving external.metrics.k8s.io metrics per cluster. This is because only one API Service can be registered to handle external metrics.
+>
+> After installing KEDA, any other metric servers that you have installed will no longer be able to serve external metrics.
+>
+> There is an [open proposal](https://github.com/kubernetes-sigs/custom-metrics-apiserver/issues/70) to allow multiple metric servers in the same cluster, but it's not implemented yet.
+
 Don't see what you need? Feel free to [create an issue](https://github.com/kedacore/keda/issues/new) on our GitHub repo.
 
 ## Deploying with Helm {#helm}

diff --git a/content/docs/2.7/deploy.md b/content/docs/2.7/deploy.md
@@ -10,6 +10,12 @@ We provide a few approaches to deploy KEDA runtime in your Kubernetes clusters:
 
 > 💡 **NOTE:** KEDA requires Kubernetes cluster version 1.16 and higher
 
+> 💡 **NOTE:** Kubernetes currently only supports one metric server serving external.metrics.k8s.io metrics per cluster. This is because only one API Service can be registered to handle external metrics.
+>
+> After installing KEDA, any other metric servers that you have installed will no longer be able to serve external metrics.
+>
+> There is an [open proposal](https://github.com/kubernetes-sigs/custom-metrics-apiserver/issues/70) to allow multiple metric servers in the same cluster, but it's not implemented yet.
+
 Don't see what you need? Feel free to [create an issue](https://github.com/kedacore/keda/issues/new) on our GitHub repo.
 
 ## Deploying with Helm {#helm}

diff --git a/content/docs/2.8/deploy.md b/content/docs/2.8/deploy.md
@@ -10,6 +10,12 @@ We provide a few approaches to deploy KEDA runtime in your Kubernetes clusters:
 
 > 💡 **NOTE:** KEDA requires Kubernetes cluster version 1.16 and higher
 
+> 💡 **NOTE:** Kubernetes currently only supports one metric server serving external.metrics.k8s.io metrics per cluster. This is because only one API Service can be registered to handle external metrics.
+>
+> After installing KEDA, any other metric servers that you have installed will no longer be able to serve external metrics.
+>
+> There is an [open proposal](https://github.com/kubernetes-sigs/custom-metrics-apiserver/issues/70) to allow multiple metric servers in the same cluster, but it's not implemented yet.
+
 Don't see what you need? Feel free to [create an issue](https://github.com/kedacore/keda/issues/new) on our GitHub repo.
 
 ## Deploying with Helm {#helm}

diff --git a/content/docs/2.9/deploy.md b/content/docs/2.9/deploy.md
@@ -10,6 +10,12 @@ We provide a few approaches to deploy KEDA runtime in your Kubernetes clusters:
 
 > 💡 **NOTE:** KEDA requires Kubernetes cluster version 1.23 and higher
 
+> 💡 **NOTE:** Kubernetes currently only supports one metric server serving external.metrics.k8s.io metrics per cluster. This is because only one API Service can be registered to handle external metrics.
+>
+> After installing KEDA, any other metric servers that you have installed will no longer be able to serve external metrics.
+>
+> There is an [open proposal](https://github.com/kubernetes-sigs/custom-metrics-apiserver/issues/70) to allow multiple metric servers in the same cluster, but it's not implemented yet.
+
 Don't see what you need? Feel free to [create an issue](https://github.com/kedacore/keda/issues/new) on our GitHub repo.
 
 ## Deploying with Helm {#helm}
-Original file line number
+Diff line change
@@ Expand Up @@
     ```sh
     microk8s disable keda
-    ```
+    ```