feat(postgres): customize storage size

postgres/justfile

@@ -3,6 +3,7 @@ set fallback := true
 export CNPG_NAMESPACE := env("CNPG_NAMESPACE", "postgres")
 export CNPG_CHART_VERSION := env("CNPG_CHART_VERSION", "0.26.0")
 export CNPG_CLUSTER_CHART_VERSION := env("CNPG_CLUSTER_CHART_VERSION", "0.3.1")
+export POSTGRES_STORAGE_SIZE := env("POSTGRES_STORAGE_SIZE", "20Gi")
 export K8S_VAULT_NAMESPACE := env("K8S_VAULT_NAMESPACE", "vault")
 export EXTERNAL_SECRETS_NAMESPACE := env("EXTERNAL_SECRETS_NAMESPACE", "external-secrets")
 
@@ -69,6 +70,7 @@ create-cluster:
         fi
     fi
 
+    gomplate -f postgres-cluster-values.gomplate.yaml -o postgres-cluster-values.yaml
     helm upgrade --install postgres-cluster cnpg/cluster \
         --version ${CNPG_CLUSTER_CHART_VERSION} \
         -n ${CNPG_NAMESPACE} --wait -f postgres-cluster-values.yaml