feat(/dev/shm): mount /dev/shm to memory for all containers by default (#230)

* feat(/dev/shm): mount /dev/shm to memory for all containers by default

* fix tests

charts/common/Chart.yaml

@@ -15,4 +15,4 @@ maintainers:
 name: common
 sources: null
 type: library
-version: 10.5.12
+version: 10.6.0

charts/common/values.yaml

@@ -809,6 +809,20 @@ persistence:
     # specify a size for memory backed volumes.
     sizeLimit:  # 1Gi
 
+  # -- Create an emptyDir volume to for /dev/shm
+  # [[ref]]https://kubernetes.io/docs/concepts/storage/volumes/#emptydir)
+  # @default -- See below
+  shm:
+    enabled: true
+    type: emptyDir
+    mountPath: /dev/shm
+    # -- Set the medium to "Memory" to mount a tmpfs (RAM-backed filesystem) instead
+    # of the storage medium that backs the node.
+    medium: Memory
+    # -- If the `SizeMemoryBackedVolumes` feature gate is enabled, you can
+    # specify a size for memory backed volumes.
+    sizeLimit:  # 1Gi
+
   # -- Example of a hostPath mount
   # [[ref]]https://kubernetes.io/docs/concepts/storage/volumes/#hostpath)
   # @default -- See below

helper-charts/common-test/tests/container/volumemounts_test.yaml

@@ -13,6 +13,8 @@ tests:
           value:
             - mountPath: /shared
               name: shared
+            - mountPath: /dev/shm
+              name: shm
             - mountPath: /tmp
               name: temp
             - mountPath: /var/logs