diff --git a/src/main/cljc/dda/k8s_keycloak/core.cljc b/src/main/cljc/dda/k8s_keycloak/core.cljc
index 6239e9d..776449c 100644
--- a/src/main/cljc/dda/k8s_keycloak/core.cljc
+++ b/src/main/cljc/dda/k8s_keycloak/core.cljc
@@ -4,7 +4,8 @@
    [clojure.spec.alpha :as s]
    #?(:clj [orchestra.core :refer [defn-spec]]
       :cljs [orchestra.core :refer-macros [defn-spec]])
-   [dda.k8s-keycloak.yaml :as yaml]))
+   [dda.k8s-keycloak.yaml :as yaml]
+   [clojure.walk]))
 
 (defn bash-env-string?
   [input]
@@ -26,6 +27,21 @@
 
 (def auth? (s/keys :req-un [::user-name ::user-password]))
 
+; This needs to be checked: 
+; Are LazySeq only lists on our case?
+(defn cast-lazy-seq-to-vec
+  [lazy-seq]
+  (clojure.walk/postwalk #(if (instance? clojure.lang.LazySeq %)
+                            (do (println %) (into [] %))
+                            %) lazy-seq))
+
+(defn replace-all-matching-values-by-new-value
+  [value-to-match value-to-replace coll]
+  (clojure.walk/postwalk #(if (and (= (type value-to-match) (type %)) 
+                                   (= value-to-match %))
+                            value-to-replace
+                            %) coll))
+
 (declare assoc-in-nested)
 (declare assoc-in-nested-seq)
 (declare assoc-in-nested-map)
diff --git a/src/test/cljc/dda/k8s_keycloak/core_test.cljc b/src/test/cljc/dda/k8s_keycloak/core_test.cljc
index caf629b..81f5939 100644
--- a/src/test/cljc/dda/k8s_keycloak/core_test.cljc
+++ b/src/test/cljc/dda/k8s_keycloak/core_test.cljc
@@ -83,3 +83,23 @@
                :ports [{:name "http", :containerPort 8080}]
                :readinessProbe {:httpGet {:path "/auth/realms/master", :port 8080}}}]}}}}
          (cut/generate-deployment {:user-name "testuser" :user-password "test1234"}))))
+<<<<<<< HEAD
+=======
+
+(deftest test-vector-replace-fqdn-function
+  (let [ingress-yaml (yaml/from-string (yaml/load-resource "ingress.yaml"))
+        fqdn "some_host"
+        desired-result (-> ingress-yaml
+                           (assoc-in [:spec :rules] [{:host fqdn
+                                                      :http {:paths [{:backend {:serviceName "keycloak"
+                                                                                :servicePort 8080}}]}}
+                                                     {:host fqdn
+                                                      :http {:paths [{:backend {:serviceName "another_keycloak"
+                                                                                :servicePort 8081}}]}}
+                                                     ]))]
+    (is (= desired-result 
+           (cut/assoc-in-nested (cut/cast-lazy-seq-to-vec ingress-yaml) [:spec :rules :host] fqdn))))
+    )
+
+
+>>>>>>> 0379ad882851993440561c5c09c9f813e4357ab1