Added emptyDir for /run. s6 is "fun"

manifests/deployment.yml

@@ -43,6 +43,8 @@ spec:
               mountPath: /config
             - name: calibre-books
               mountPath: /books
+            - name: run-dir
+              mountPath: /run
           resources:
             requests:
               memory: "128Mi"
@@ -57,3 +59,5 @@ spec:
         - name: calibre-books
           persistentVolumeClaim:
             claimName: calibre-books-csi
+        - name: run-dir
+          emptyDir: {}