feat: migrate CSI drivers to dedicated storage project (#45)

- Migrate csi-cephfs from Terraform to ArgoCD
- Migrate csi-cephrbd from Terraform to ArgoCD
- Create dedicated storage project and ApplicationSet for CSI drivers
- Add csi-* pattern matching in storage ApplicationSet
- Remove CSI apps from platform project to separate concerns

Reviewed-on: #45

apps/base/csi-cephrbd/kustomization.yaml

@@ -0,0 +1,9 @@
+---
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - namespace.yaml
+  - vaultauth.yaml
+  - vaultstaticsecret.yaml
+  - storageclass.yaml

apps/base/csi-cephrbd/namespace.yaml

@@ -0,0 +1,5 @@
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: csi-cephrbd

apps/base/csi-cephrbd/storageclass.yaml

@@ -0,0 +1,39 @@
+---
+apiVersion: storage.k8s.io/v1
+kind: StorageClass
+metadata:
+  name: cephrbd-fast-delete
+  annotations:
+    storageclass.kubernetes.io/is-default-class: "true"
+provisioner: rbd.csi.ceph.com
+reclaimPolicy: Delete
+allowVolumeExpansion: true
+parameters:
+  clusterID: "de96a98f-3d23-465a-a899-86d3d67edab8"
+  pool: "kubernetes"
+  imageFeatures: "layering"
+  csi.storage.k8s.io/provisioner-secret-name: "csi-rbd-secret"
+  csi.storage.k8s.io/provisioner-secret-namespace: "csi-cephrbd"
+  csi.storage.k8s.io/controller-expand-secret-name: "csi-rbd-secret"
+  csi.storage.k8s.io/controller-expand-secret-namespace: "csi-cephrbd"
+  csi.storage.k8s.io/node-stage-secret-name: "csi-rbd-secret"
+  csi.storage.k8s.io/node-stage-secret-namespace: "csi-cephrbd"
+
+---
+apiVersion: storage.k8s.io/v1
+kind: StorageClass
+metadata:
+  name: cephrbd-fast-retain
+provisioner: rbd.csi.ceph.com
+reclaimPolicy: Retain
+allowVolumeExpansion: true
+parameters:
+  clusterID: "de96a98f-3d23-465a-a899-86d3d67edab8"
+  pool: "kubernetes"
+  imageFeatures: "layering"
+  csi.storage.k8s.io/provisioner-secret-name: "csi-rbd-secret"
+  csi.storage.k8s.io/provisioner-secret-namespace: "csi-cephrbd"
+  csi.storage.k8s.io/controller-expand-secret-name: "csi-rbd-secret"
+  csi.storage.k8s.io/controller-expand-secret-namespace: "csi-cephrbd"
+  csi.storage.k8s.io/node-stage-secret-name: "csi-rbd-secret"
+  csi.storage.k8s.io/node-stage-secret-namespace: "csi-cephrbd"

apps/base/csi-cephrbd/vaultauth.yaml

@@ -0,0 +1,18 @@
+---
+apiVersion: secrets.hashicorp.com/v1beta1
+kind: VaultAuth
+metadata:
+  name: ceph-csi-rbd
+  namespace: csi-cephrbd
+spec:
+  method: kubernetes
+  mount: k8s/au/syd1
+  vaultConnectionRef: vso-system/default
+  allowedNamespaces:
+    - csi-cephrbd
+  kubernetes:
+    role: ceph-csi
+    serviceAccount: ceph-csi-rbd-csi-rbd-provisioner
+    audiences:
+      - vault
+    tokenExpirationSeconds: 600

apps/base/csi-cephrbd/vaultstaticsecret.yaml

@@ -0,0 +1,15 @@
+---
+apiVersion: secrets.hashicorp.com/v1beta1
+kind: VaultStaticSecret
+metadata:
+  name: csi-rbd-secret
+  namespace: csi-cephrbd
+spec:
+  vaultAuthRef: ceph-csi-rbd
+  mount: kv
+  type: kv-v2
+  path: service/kubernetes/au/syd1/csi/ceph-rbd-secret
+  refreshAfter: 5m
+  destination:
+    name: csi-rbd-secret
+    create: true