diff --git a/src/main/cljc/dda/c4k_jira/jira.cljc b/src/main/cljc/dda/c4k_jira/jira.cljc
index bd52990..4b2d2cd 100644
--- a/src/main/cljc/dda/c4k_jira/jira.cljc
+++ b/src/main/cljc/dda/c4k_jira/jira.cljc
@@ -2,13 +2,21 @@
  (:require
   [clojure.spec.alpha :as s]
   #?(:cljs [shadow.resource :as rc])
+  #?(:clj [orchestra.core :refer [defn-spec]]
+     :cljs [orchestra.core :refer-macros [defn-spec]])
   [dda.c4k-common.yaml :as yaml]
+  [dda.c4k-common.predicate :as cp]
   [dda.c4k-common.common :as cm]))
 
-(s/def ::fqdn cm/fqdn-string?)
-(s/def ::issuer cm/letsencrypt-issuer?)
+(s/def ::fqdn cp/fqdn-string?)
+(s/def ::issuer cp/letsencrypt-issuer?)
 (s/def ::restic-repository string?)
-(s/def ::jira-data-volume-path string?)
+(s/def ::pvc-storage-class-name cp/pvc-storage-class-name?)
+(s/def ::pv-storage-size-gb pos?)
+
+(def strong-config? (s/keys :req-un [::fqdn ::issuer ::pv-storage-size-gb
+                                     ::pvc-storage-class-name]
+                     :opt-un [::restic-repository]))
 
 #?(:cljs
    (defmethod yaml/load-resource :jira [resource-name]
@@ -16,7 +24,6 @@
        "jira/certificate.yaml" (rc/inline "jira/certificate.yaml")
        "jira/deployment.yaml" (rc/inline "jira/deployment.yaml")
        "jira/ingress.yaml" (rc/inline "jira/ingress.yaml")
-       "jira/persistent-volume.yaml" (rc/inline "jira/persistent-volume.yaml")
        "jira/pvc.yaml" (rc/inline "jira/pvc.yaml")
        "jira/service.yaml" (rc/inline "jira/service.yaml")
        (throw (js/Error. "Undefined Resource!")))))
@@ -44,14 +51,13 @@
      (assoc-in [:metadata :annotations :cert-manager.io/cluster-issuer] letsencrypt-issuer)
      (cm/replace-all-matching-values-by-new-value "fqdn" fqdn))))
 
-(defn generate-persistent-volume [config]
-  (let [{:keys [jira-data-volume-path]} config]
-    (-> 
-     (yaml/from-string (yaml/load-resource "jira/persistent-volume.yaml"))
-     (assoc-in [:spec :hostPath :path] jira-data-volume-path))))
-
-(defn generate-pvc []
-  (yaml/from-string (yaml/load-resource "jira/pvc.yaml")))
+(defn-spec generate-pvc cp/map-or-seq?
+  [config (s/keys :req-un [::pv-storage-size-gb  ::pvc-storage-class-name])]
+  (let [{:keys [pv-storage-size-gb pvc-storage-class-name]} config]
+    (->
+     (yaml/from-string (yaml/load-resource "jira/pvc.yaml"))
+     (assoc-in [:spec :resources :requests :storage] (str pv-storage-size-gb "Gi"))
+     (assoc-in [:spec :storageClassName] (name pvc-storage-class-name)))))
 
 (defn generate-service []
   (yaml/from-string (yaml/load-resource "jira/service.yaml")))
diff --git a/src/main/cljs/dda/c4k_jira/browser.cljs b/src/main/cljs/dda/c4k_jira/browser.cljs
index aaa84cd..859dd21 100644
--- a/src/main/cljs/dda/c4k_jira/browser.cljs
+++ b/src/main/cljs/dda/c4k_jira/browser.cljs
@@ -3,8 +3,7 @@
    [clojure.tools.reader.edn :as edn]
    [dda.c4k-jira.core :as core]
    [dda.c4k-jira.jira :as jira]
-   [dda.c4k-common.browser :as br]
-   [dda.c4k-common.postgres :as pgc]))
+   [dda.c4k-common.browser :as br]))
 
 (defn generate-content
   []
@@ -51,8 +50,6 @@
 
 (defn validate-all! []
   (br/validate! "fqdn" ::jira/fqdn)
-  (br/validate! "jira-data-volume-path" ::jira/jira-data-volume-path :optional true)
-  (br/validate! "postgres-data-volume-path" ::pgc/postgres-data-volume-path :optional true)
   (br/validate! "restic-repository" ::jira/restic-repository :optional true)
   (br/validate! "issuer" ::jira/issuer :optional true :deserializer keyword)
   (br/validate! "auth" core/auth? :deserializer edn/read-string)
@@ -74,8 +71,6 @@
                                    (br/get-content-from-element "auth" :deserializer edn/read-string))
                                   (br/set-output!)))))
   (add-validate-listener "fqdn")
-  (add-validate-listener "jira-data-volume-path")
-  (add-validate-listener "postgres-data-volume-path")
   (add-validate-listener "restic-repository")
   (add-validate-listener "issuer")
   (add-validate-listener "auth"))
\ No newline at end of file
diff --git a/src/main/resources/jira/persistent-volume.yaml b/src/main/resources/jira/persistent-volume.yaml
deleted file mode 100644
index b5e9b37..0000000
--- a/src/main/resources/jira/persistent-volume.yaml
+++ /dev/null
@@ -1,14 +0,0 @@
-kind: PersistentVolume
-apiVersion: v1
-metadata:
-  name: jira-pv-volume
-  labels:
-    type: local
-spec:
-  storageClassName: manual
-  accessModes:
-    - ReadWriteOnce
-  capacity:
-    storage: 30Gi
-  hostPath:
-    path: "/var/jira"
diff --git a/src/main/resources/jira/pvc.yaml b/src/main/resources/jira/pvc.yaml
index c89e620..0faf011 100644
--- a/src/main/resources/jira/pvc.yaml
+++ b/src/main/resources/jira/pvc.yaml
@@ -5,9 +5,9 @@ metadata:
   labels:
     app: jira
 spec:
-  storageClassName: manual
+  storageClassName: REPLACEME
   accessModes:
     - ReadWriteOnce
   resources:
     requests:
-      storage: 30Gi
\ No newline at end of file
+      storage: REPLACEME
\ No newline at end of file
diff --git a/src/test/cljc/dda/c4k_jira/core_test.cljc b/src/test/cljc/dda/c4k_jira/core_test.cljc
index 8e62dea..b51885e 100644
--- a/src/test/cljc/dda/c4k_jira/core_test.cljc
+++ b/src/test/cljc/dda/c4k_jira/core_test.cljc
@@ -5,17 +5,6 @@
    [dda.c4k-jira.core :as cut]))
 
 (deftest should-k8s-objects
-  (is (= 16
-         (count (cut/k8s-objects {:fqdn "jira-neu.prod.meissa-gmbh.de"
-                                  :postgres-db-user "jira"
-                                  :postgres-db-password "jira-db-password"
-                                  :issuer :prod
-                                  :jira-data-volume-path "/var/jira"
-                                  :postgres-data-volume-path "/var/postgres"
-                                  :aws-access-key-id "aws-id"
-                                  :aws-secret-access-key "aws-secret"
-                                  :restic-password "restic-pw"
-                                  :restic-repository "restic-repository"}))))
   (is (= 14
          (count (cut/k8s-objects {:fqdn "jira-neu.prod.meissa-gmbh.de"
                                   :postgres-db-user "jira"
diff --git a/src/test/cljc/dda/c4k_jira/jira_test.cljc b/src/test/cljc/dda/c4k_jira/jira_test.cljc
index 231ad13..b000ac1 100644
--- a/src/test/cljc/dda/c4k_jira/jira_test.cljc
+++ b/src/test/cljc/dda/c4k_jira/jira_test.cljc
@@ -16,6 +16,16 @@
            {:name "letsencrypt-prod-issuer", :kind "ClusterIssuer"}}}
          (cut/generate-certificate {:fqdn "xx" :issuer :prod}))))
 
+(deftest should-generate-pvc
+  (is (= {:apiVersion "v1",
+          :kind "PersistentVolumeClaim",
+          :metadata {:name "jira-pvc", :labels {:app "jira"}},
+          :spec
+          {:storageClassName "manual",
+           :accessModes ["ReadWriteOnce"],
+           :resources {:requests {:storage "12Gi"}}}}
+         (cut/generate-pvc {:pv-storage-size-gb 12 :pvc-storage-class-name :manual}))))
+
 (deftest should-generate-ingress
   (is (= {:apiVersion "networking.k8s.io/v1"
           :kind "Ingress"
@@ -45,17 +55,6 @@
                   :port {:number 8080}}}}]}}]}}
          (cut/generate-ingress {:fqdn "xx"}))))
 
-(deftest should-generate-persistent-volume
-  (is (= {:kind "PersistentVolume"
-          :apiVersion "v1"
-          :metadata {:name "jira-pv-volume", :labels {:type "local"}}
-          :spec
-          {:storageClassName "manual"
-           :accessModes ["ReadWriteOnce"]
-           :capacity {:storage "30Gi"}
-           :hostPath {:path "xx"}}}
-         (cut/generate-persistent-volume {:jira-data-volume-path "xx"}))))
-
 (deftest should-generate-deployment
   (is (= {:containers
            [{:image "domaindrivenarchitecture/c4k-jira"