fix: Bump up gitter allocation (#4798)

Also fixed:
- Replace deprecated gcePersistentDisk with csi driver
- Actually add gitter.yaml to kustomizations.yaml (I can't believe this
was working before)
- Overriding the volume claim in test (I'm not sure if this works, we'll
find out)

Author: another-rex

deployment/clouddeploy/gke-workers/base/gitter.yaml

@@ -52,11 +52,12 @@ metadata:
 spec:
   storageClassName: ""
   capacity:
-    storage: 2Ti
+    storage: 4Ti
   accessModes:
     - ReadWriteOnce
-  gcePersistentDisk:
-    pdName: gitter-disk
+  csi:
+    driver: pd.csi.storage.gke.io
+    volumeHandle: projects/oss-vdb/zones/us-central1-f/disks/gitter-disk
     fsType: ext4
 ---
 apiVersion: v1
@@ -70,7 +71,7 @@ spec:
     - ReadWriteOnce
   resources:
     requests:
-      storage: 2Ti
+      storage: 4Ti
 ---
 apiVersion: v1
 kind: Service

deployment/clouddeploy/gke-workers/environments/oss-vdb-test/gitter.yaml

@@ -14,3 +14,13 @@ spec:
         env:
           - name: GOOGLE_CLOUD_PROJECT
             value: oss-vdb-test
+---
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: gitter-disk-pv
+spec:
+  csi:
+    driver: pd.csi.storage.gke.io
+    volumeHandle: projects/oss-vdb-test/zones/us-central1-f/disks/gitter-disk
+    fsType: ext4

deployment/clouddeploy/gke-workers/environments/oss-vdb-test/kustomization.yaml

@@ -24,3 +24,4 @@ patches:
 - path: recoverer.yaml
 - path: record-checker.yaml
 - path: custommetrics.yaml
+- path: gitter.yaml

deployment/clouddeploy/gke-workers/environments/oss-vdb/kustomization.yaml

@@ -21,4 +21,5 @@ patches:
 - path: record-checker.yaml
 - path: cve5-to-osv.yaml
 - path: custommetrics.yaml
+- path: gitter.yaml
 

deployment/terraform/modules/osv/workers_gke.tf

@@ -181,5 +181,5 @@ resource "google_compute_disk" "gitter_disk" {
   name    = "gitter-disk"
   type    = "pd-ssd"
   zone    = google_container_cluster.workers.location
-  size    = 2048
+  size    = 4096
 }