Docs: Onboarding: small cluster sizes for prometheus if selected

docs/help.rst

@@ -127,11 +127,15 @@ Robusta runner, Prometheus or Holmes failures
                         limits:
                           memory: 1Gi
 
-        If using a test cluster like Kind/Colima, re-install Robusta with the ``isSmallCluster=true`` property:
+        If using a test cluster like Kind/Colima, re-install Robusta with the ``isSmallCluster=true`` property.
+        If you're also using Robusta's kube-prometheus-stack, add the lines involving prometheusSpec.
 
         .. code-block:: bash
 
-                helm install robusta robusta/robusta -f ./generated_values.yaml --set clusterName=<YOUR_CLUSTER_NAME> --set isSmallCluster=true
+                helm install robusta robusta/robusta -f ./generated_values.yaml --set clusterName=<YOUR_CLUSTER_NAME> --set isSmallCluster=true \
+                    --set kube-prometheus-stack.prometheus.prometheusSpec.retentionSize=9GB \
+                    --set kube-prometheus-stack.prometheus.prometheusSpec.storageSpec.volumeClaimTemplate.spec.resources.requests.storage=10Gi \
+                    --set kube-prometheus-stack.prometheus.prometheusSpec.resources.requests.memory=512Mi
 
 
 .. details:: robusta-runner isn't working or has exceptions

docs/setup-robusta/installation/_helm_install.inc.rst → docs/setup-robusta/installation/_helm_install_no_prometheus.inc.rst

@@ -74,7 +74,7 @@ On some clusters this can take a while, so don't panic if it appears stuck:
             helm repo add robusta https://robusta-charts.storage.googleapis.com && helm repo update
             helm install robusta robusta/robusta -f ./generated_values.yaml --set clusterName=<YOUR_CLUSTER_NAME>
 
-    .. tab-item:: Kind/Colima
+    .. tab-item:: Local/Test Cluster
         :name: install-test-clusters
 
         Test clusters tend to have fewer resources. To lower Robusta's resource requests, set ``isSmallCluster=true``.

docs/setup-robusta/installation/_helm_install_with_prometheus.inc.rst

@@ -0,0 +1,100 @@
+.. updated to .inc.rst because of "WARNING: duplicate label"
+
+Install with Helm
+------------------------------
+
+Copy the below commands, replacing the ``<YOUR_CLUSTER_NAME>`` placeholder.
+
+On some clusters this can take a while, so don't panic if it appears stuck:
+
+.. tab-set::
+
+    .. tab-item:: Normal Clusters
+        :name: install-standard
+
+        .. code-block:: bash
+            :name: cb-helm-install-only-robusta
+
+            helm repo add robusta https://robusta-charts.storage.googleapis.com && helm repo update
+            helm install robusta robusta/robusta -f ./generated_values.yaml --set clusterName=<YOUR_CLUSTER_NAME>
+
+    .. tab-item:: EKS
+        :name: install-eks
+
+        To use all Robusta features, ensure storage is enabled on your cluster. If necessary, refer to the EKS documentation and install the `EBS CSI add-on <https://docs.aws.amazon.com/eks/latest/userguide/managing-ebs-csi.html#adding-ebs-csi-eks-add-on>`_
+
+        .. details:: How do I know if my cluster has storage enabled?
+
+            Try installing Robusta. If storage is not configured, you'll receive an error:
+
+            .. code-block::
+
+                PreBind plugin "VolumeBinding": binding volumes: timed out waiting for the condition
+
+            Running ``kubectl get pvc -A`` will also show PersistentVolumeClaims in ``Pending`` state.
+
+            In this case, follow the instructions above and enable storage for your cluster.
+
+        .. code-block:: bash
+            :name: cb-helm-install-eks
+
+            helm repo add robusta https://robusta-charts.storage.googleapis.com && helm repo update
+            helm install robusta robusta/robusta -f ./generated_values.yaml --set clusterName=<YOUR_CLUSTER_NAME>
+
+    .. tab-item:: GKE Autopilot
+        :name: install-gke-autopilot
+
+        Due to Autopilot restrictions, some components are disabled for Robusta's bundled Prometheus. Don't worry, everything will still work.
+
+        .. code-block:: bash
+            :name: cb-helm-install-gke-autopilot
+
+            helm repo add robusta https://robusta-charts.storage.googleapis.com && helm repo update
+            helm install robusta robusta/robusta -f ./generated_values.yaml \
+                --set clusterName=<YOUR_CLUSTER_NAME> \
+                --set kube-prometheus-stack.coreDns.enabled=false \
+                --set kube-prometheus-stack.kubeControllerManager.enabled=false \
+                --set kube-prometheus-stack.kubeDns.enabled=false \
+                --set kube-prometheus-stack.kubeEtcd.enabled=false \
+                --set kube-prometheus-stack.kubeProxy.enabled=false \
+                --set kube-prometheus-stack.kubeScheduler.enabled=false \
+                --set kube-prometheus-stack.nodeExporter.enabled=false \
+                --set kube-prometheus-stack.prometheusOperator.kubeletService.enabled=false
+
+    .. tab-item:: OpenShift
+        :name: install-openshift
+
+        First :ref:`modify the Helm values to enable OpenShift support<openshift-permissions>`.
+
+        Then install Robusta as usual with Helm:
+
+        .. code-block:: bash
+            :name: cb-helm-install-openshift
+
+            helm repo add robusta https://robusta-charts.storage.googleapis.com && helm repo update
+            helm install robusta robusta/robusta -f ./generated_values.yaml --set clusterName=<YOUR_CLUSTER_NAME>
+
+    .. tab-item:: Local/Test Cluster
+        :name: install-test-clusters
+
+        Test clusters tend to have fewer resources. To lower Robusta's resource requests, set ``isSmallCluster=true``.
+
+        .. code-block:: bash
+            :name: cb-helm-install-test-clusters
+
+            helm repo add robusta https://robusta-charts.storage.googleapis.com && helm repo update
+            helm upgrade robusta robusta/robusta -f ./generated_values.yaml --set clusterName=<YOUR_CLUSTER_NAME> --set isSmallCluster=true \
+                --set kube-prometheus-stack.prometheus.prometheusSpec.retentionSize=9GB \
+                --set kube-prometheus-stack.prometheus.prometheusSpec.storageSpec.volumeClaimTemplate.spec.resources.requests.storage=10Gi \
+                --set kube-prometheus-stack.prometheus.prometheusSpec.resources.requests.memory=512Mi
+
+Verifying Installation
+------------------------------
+
+Confirm that two Robusta pods are running with no errors in the logs:
+
+.. code-block:: bash
+    :name: cb-get-pods-robusta-logs
+
+    kubectl get pods -A | grep robusta
+    robusta logs

docs/setup-robusta/installation/all-in-one-installation.rst

@@ -20,7 +20,7 @@ Prerequisites
    :header_update_levels:
    :file: setup-robusta/installation/_generate_config.jinja
 
-.. include:: ./_helm_install.inc.rst
+.. include:: ./_helm_install_with_prometheus.inc.rst
 
 .. include:: ./_see_robusta_in_action.rst
 

docs/setup-robusta/installation/extend-prometheus-installation.rst

@@ -21,7 +21,7 @@ Prerequisites
    :header_update_levels:
    :file: setup-robusta/installation/_generate_config.jinja
 
-.. include:: ./_helm_install.inc.rst
+.. include:: ./_helm_install_no_prometheus.inc.rst
 
 .. include:: ./_see_robusta_in_action.rst
 

docs/setup-robusta/installation/standalone-installation.rst

@@ -28,7 +28,7 @@ Prerequisites
    :header_update_levels:
    :file: setup-robusta/installation/_generate_config.jinja
 
-.. include:: ./_helm_install.inc.rst
+.. include:: ./_helm_install_no_prometheus.inc.rst
 
 .. include:: ./_see_robusta_in_action.rst