allow pg pinning override

src/main/cljc/dda/c4k_common/postgres.cljc

@@ -39,8 +39,12 @@
      (yaml/from-string (yaml/load-resource (str "postgres/config-" (name postgres-size) ".yaml")))
      (assoc-in [:data :postgres-db] db-name))))
 
-(defn generate-deployment []
+(defn generate-deployment [& args]
-  (yaml/from-string (yaml/load-resource "postgres/deployment.yaml")))
+  (let [{:keys [postgres-image]
+         :or {postgres-image "postgres:13"}} args]
+    (->
+     (yaml/from-string (yaml/load-resource "postgres/deployment.yaml"))
+     (assoc-in [:spec :template :spec :containers 0 :image] postgres-image))))
 
 (defn generate-persistent-volume [config]
   (let [{:keys [postgres-data-volume-path]} config]

src/main/resources/postgres/deployment.yaml

@@ -14,7 +14,7 @@ spec:
         app: postgresql
     spec:
       containers:
-        - image: postgres:13
+        - image: postgres
           name: postgresql
           env:
             - name: POSTGRES_USER

src/test/cljc/dda/c4k_common/postgres_test.cljc

@@ -39,3 +39,30 @@
           :data
           {:postgres-user "eHgtdXM=", :postgres-password "eHgtcHc="}}
          (cut/generate-secret {:postgres-db-user "xx-us" :postgres-db-password "xx-pw"}))))
+
+(deftest should-generate-deployment
+  (is (= [{:image "postgres:14"
+           :name "postgresql"
+           :env
+           [{:name "POSTGRES_USER"
+             :valueFrom
+             {:secretKeyRef
+              {:name "postgres-secret", :key "postgres-user"}}}
+            {:name "POSTGRES_PASSWORD"
+             :valueFrom
+             {:secretKeyRef
+              {:name "postgres-secret", :key "postgres-password"}}}
+            {:name "POSTGRES_DB"
+             :valueFrom
+             {:configMapKeyRef
+              {:name "postgres-config", :key "postgres-db"}}}]
+           :ports [{:containerPort 5432, :name "postgresql"}]
+           :volumeMounts
+           [{:name "postgres-config-volume"
+             :mountPath "/etc/postgresql/postgresql.conf"
+             :subPath "postgresql.conf"
+             :readOnly true}
+            {:name "postgre-data-volume"
+             :mountPath "/var/lib/postgresql/data"}]}]
+         (get-in (cut/generate-deployment :postgres-image "postgres:14")
+                 [:spec :template :spec :containers]))))