From 737cfb6f93eeddf7cb1dd9deddbd44e02a98586d Mon Sep 17 00:00:00 2001
From: Abel Soares Siqueira <abel.s.siqueira@gmail.com>
Date: Fri, 23 Jun 2023 11:21:37 +0000
Subject: [PATCH] Add kubevirt configuration and troubleshoot rabbitmq disk
 issue

---
 41-kubernetes-single-computer.md            | 10 +++
 42-kubernetes-cloud-provider.md             |  8 ++
 k8-config/kubevirt-hostpath-provisioner.yml | 92 +++++++++++++++++++++
 3 files changed, 110 insertions(+)
 create mode 100644 k8-config/kubevirt-hostpath-provisioner.yml

diff --git a/41-kubernetes-single-computer.md b/41-kubernetes-single-computer.md
index c4ba84d..c2082eb 100644
--- a/41-kubernetes-single-computer.md
+++ b/41-kubernetes-single-computer.md
@@ -120,3 +120,13 @@ volumes:
     persistentVolumeClaim:
       claimName: asreview-storage
 ```
+
+## Multi-node minikube
+
+If you are using a multi-node minikube setup (for testing reasons, hopefully), also run the following:
+
+```bash
+minikube addons disable storage-provisioner
+kubectl delete storageclasses.storage.k8s.io standard
+kubectl apply -f kubevirt-hostpath-provisioner.yml
+```
diff --git a/42-kubernetes-cloud-provider.md b/42-kubernetes-cloud-provider.md
index 4bf474f..2df07b1 100644
--- a/42-kubernetes-cloud-provider.md
+++ b/42-kubernetes-cloud-provider.md
@@ -59,3 +59,11 @@ volumes:
       server: NFS_SERVICE_IP
       path: "/"
 ```
+
+## StorageClass provisioner
+
+If your cluster does not have a StorageClass provisioner, you can try the following:
+
+```bash
+kubectl apply -f kubevirt-hostpath-provisioner.yml
+```
diff --git a/k8-config/kubevirt-hostpath-provisioner.yml b/k8-config/kubevirt-hostpath-provisioner.yml
new file mode 100644
index 0000000..972483a
--- /dev/null
+++ b/k8-config/kubevirt-hostpath-provisioner.yml
@@ -0,0 +1,92 @@
+# https://stackoverflow.com/questions/75175620/why-cant-my-rabbitmq-cluster-on-k8s-multi-node-minikube-create-its-mnesia-dir
+apiVersion: storage.k8s.io/v1
+kind: StorageClass
+metadata:
+  name: standard
+  annotations:
+    storageclass.kubernetes.io/is-default-class: "true"
+provisioner: kubevirt.io/hostpath-provisioner
+volumeBindingMode: WaitForFirstConsumer
+reclaimPolicy: Delete
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: kubevirt-hostpath-provisioner
+subjects:
+  - kind: ServiceAccount
+    name: kubevirt-hostpath-provisioner-admin
+    namespace: kube-system
+roleRef:
+  kind: ClusterRole
+  name: kubevirt-hostpath-provisioner
+  apiGroup: rbac.authorization.k8s.io
+---
+kind: ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: kubevirt-hostpath-provisioner
+rules:
+  - apiGroups: [""]
+    resources: ["nodes"]
+    verbs: ["get"]
+  - apiGroups: [""]
+    resources: ["persistentvolumes"]
+    verbs: ["get", "list", "watch", "create", "delete"]
+  - apiGroups: [""]
+    resources: ["persistentvolumeclaims"]
+    verbs: ["get", "list", "watch", "update"]
+
+  - apiGroups: ["storage.k8s.io"]
+    resources: ["storageclasses"]
+    verbs: ["get", "list", "watch"]
+
+  - apiGroups: [""]
+    resources: ["events"]
+    verbs: ["list", "watch", "create", "update", "patch"]
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: kubevirt-hostpath-provisioner-admin
+  namespace: kube-system
+---
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: kubevirt-hostpath-provisioner
+  labels:
+    k8s-app: kubevirt-hostpath-provisioner
+  namespace: kube-system
+spec:
+  selector:
+    matchLabels:
+      k8s-app: kubevirt-hostpath-provisioner
+  template:
+    metadata:
+      labels:
+        k8s-app: kubevirt-hostpath-provisioner
+    spec:
+      serviceAccountName: kubevirt-hostpath-provisioner-admin
+      containers:
+        - name: kubevirt-hostpath-provisioner
+          image: quay.io/kubevirt/hostpath-provisioner
+          imagePullPolicy: Always
+          env:
+            - name: USE_NAMING_PREFIX
+              value: "false" # change to true, to have the name of the pvc be part of the directory
+            - name: NODE_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: spec.nodeName
+            - name: PV_DIR
+              value: /tmp/hostpath-provisioner
+          volumeMounts:
+            - name: pv-volume # root dir where your bind mounts will be on the node
+              mountPath: /tmp/hostpath-provisioner/
+              #nodeSelector:
+              #- name: xxxxxx
+      volumes:
+        - name: pv-volume
+          hostPath:
+            path: /tmp/hostpath-provisioner/