diff --git a/charts/busynix/deploy.sh b/charts/busynix/deploy.sh
index 6a99762..532d62d 100755
--- a/charts/busynix/deploy.sh
+++ b/charts/busynix/deploy.sh
@@ -7,6 +7,5 @@ charts=(
 )
 
 . ../config.sh
-
-kubectl_apply $namespace "${charts[@]}"
+kubectl_apply_files $namespace "${charts[@]}"
 
diff --git a/charts/cert-manager/deploy.sh b/charts/cert-manager/deploy.sh
index 666ddfc..62c4439 100644
--- a/charts/cert-manager/deploy.sh
+++ b/charts/cert-manager/deploy.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
-version="v1.0.4"
 namespace=kube-system
+version="v1.0.4"
 
 charts=(
     cluster-ca.yaml
@@ -10,9 +10,7 @@ charts=(
 )
 
 . ../config.sh
-
-kubectl_apply $namespace "${charts[@]}"
-
+kubectl_apply_files $namespace "${charts[@]}"
 kubectl apply \
     -n $namespace \
     --validate=false \
diff --git a/charts/config.sh b/charts/config.sh
index c29b2df..31b7201 100755
--- a/charts/config.sh
+++ b/charts/config.sh
@@ -1,34 +1,45 @@
 #!/usr/bin/env bash
 
 vars=(
-    initca="@initca@"
-    apiserver="@apiserver@"
-    cluster="@cluster@"
-    ingress_nodes="@ingress_nodes@"
-    filseserver="@fileserver@"
-    acme_email="@acme_email@"
-    grafana_ldap_toml="@grafana_ldap_toml@"
-    grafana_smtp_user="@grafana_smtp_user@"
-    grafana_smtp_password="@grafana_smtp_password@"
+    initca="replace_me"
+    apiserver="replace_me"
+    cluster="replace_me"
+    ingress_nodes="[ replace_me"
+    ingress_replica_count="replace_me"
+    filseserver="replace_me"
+    acme_email="replace_me"
+    grafana_smtp_user="replace_me"
+    grafana_smtp_password="replace_me"
 )
 
-make_substitutions () {
+substitute_all () {
     read x
-    for i in "${vars[@]}"; do
+    subs=("$@")
+    for i in "${subs[@]}"; do
         k=$(echo "$i" | cut -d= -f1)
         v=$(echo "$i" | cut -d= -f2)
         echo "$x" | sed "s/@$k@/$v/g"
     done
 }
 
+substitute_defaults () {
+  substitute_all "${vars[@]}"
+}
+
 kubectl_apply () {
-    ns=$1; shift
+    read x
+    namespace=$1; shift
+    kubectl get ns $namespace  2>&1 >/dev/null || kubectl create ns $namespace
+    cat $x | substitute_defaults | kubectl -n $namespace apply -f -
+}
+
+kubectl_apply_files () {
+    namespace=$1; shift
     charts=("$@")
     for i in "${charts[@]}"; do
-        k=$(echo "$i" | cut -d= -f1)
-        v=$(echo "$i" | cut -d= -f2)
-        sed "s/@$k@/$v/g" $i | kubectl apply -n $ns -f -
+       cat $i | kubectl_apply $namespace
     done
 }
 
 # vim:ft=sh
+
diff --git a/charts/ingress-nginx/deploy.sh b/charts/ingress-nginx/deploy.sh
index adff498..c3183f6 100755
--- a/charts/ingress-nginx/deploy.sh
+++ b/charts/ingress-nginx/deploy.sh
@@ -5,15 +5,11 @@ namespace=kube-system
 charts=()
 
 . ../config.sh
-
-kubectl_apply "${charts[@]}"
-
+kubectl_apply_files_files "${charts[@]}"
 helm template \
     -n $namespace \
     -f values.yaml \
     ingress \
     ingress-nginx/ingress-nginx \
-    | make_substitutions \
-    | kubectl apply -n $namespace -f -
-
+    | kubectl_apply_files $namespace
 
diff --git a/charts/ingress-nginx/values.yaml b/charts/ingress-nginx/values.yaml
index 135252f..85a2257 100644
--- a/charts/ingress-nginx/values.yaml
+++ b/charts/ingress-nginx/values.yaml
@@ -271,7 +271,7 @@ controller:
   ##
   podAnnotations: {}
 
-  replicaCount: @ingress_replicas@
+  replicaCount: @ingress_replica_count@
 
   minAvailable: 3
 
diff --git a/charts/kube-system/deploy.sh b/charts/kube-system/deploy.sh
index f7c7e91..8c5b4fe 100755
--- a/charts/kube-system/deploy.sh
+++ b/charts/kube-system/deploy.sh
@@ -8,9 +8,7 @@ charts=(
 )
 
 . ../config.sh
-
-kubectl_apply $namespace "${charts[@]}"
-
+kubectl_apply_files $namespace "${charts[@]}"
 kubectl delete secret cluster-ca -n $namespace
 kubectl create secret tls cluster-ca \
     --namespace=$namespace --cert=$initca/ca.pem --key=$initca/ca-key.pem
diff --git a/charts/kubernetes-dashboard/deploy.sh b/charts/kubernetes-dashboard/deploy.sh
index e9ff75e..e737a29 100755
--- a/charts/kubernetes-dashboard/deploy.sh
+++ b/charts/kubernetes-dashboard/deploy.sh
@@ -8,10 +8,8 @@ charts=(
 )
 
 . ../config.sh
-
-kubectl create ns $namespace
-kubectl_apply $namespace "${charts[@]}"
+kubectl_apply_files $namespace "${charts[@]}"
 kubectl apply \
-    -n $namespace \
-    -f https://raw.githubusercontent.com/kubernetes/dashboard/$version/aio/deploy/recommended.yaml
+  -n $namespace \
+  -f https://raw.githubusercontent.com/kubernetes/dashboard/$version/aio/deploy/recommended.yaml
 
diff --git a/charts/metrics-server/deploy.sh b/charts/metrics-server/deploy.sh
index c836ef3..8a48d80 100755
--- a/charts/metrics-server/deploy.sh
+++ b/charts/metrics-server/deploy.sh
@@ -5,15 +5,12 @@ namespace=kube-system
 charts=()
 
 . ../config.sh
-
-kubectl_apply $namespace "${charts[@]}"
+kubectl_apply_files $namespace "${charts[@]}"
 helm template \
     -n $namespace \
     -f values.yaml \
     metrics-server \
     stable/metrics-server \
-    | make_substitutions \
-    | sed 's/8443/6443/g' \
-    | kubectl apply -f -
+    | kubectl_apply $namespace
 
 
diff --git a/charts/minio/deploy.sh b/charts/minio/deploy.sh
index dd480ff..9f04d58 100644
--- a/charts/minio/deploy.sh
+++ b/charts/minio/deploy.sh
@@ -5,14 +5,10 @@ namespace=minio
 charts=()
 
 . ../config.sh
-
-kubectl create ns $namespace
-kubectl_apply $namespace "${charts[@]}"
-
+kubectl_apply_files $namespace "${charts[@]}"
 helm template \
     -n $namespace \
     -f values.yaml \
     minio minio/minio \
-    | make_substitutions \
-    | kubectl apply -n $namespace -f -
+    | kubectl_apply $namespace
 
diff --git a/charts/nfs-client-provisioner/deploy.sh b/charts/nfs-client-provisioner/deploy.sh
index 934b98d..a785125 100755
--- a/charts/nfs-client-provisioner/deploy.sh
+++ b/charts/nfs-client-provisioner/deploy.sh
@@ -5,14 +5,12 @@ namespace=kube-system
 charts=()
 
 . ../config.sh
-
-kubectl_apply $namespace "${charts[@]}"
+kubectl_apply_files $namespace "${charts[@]}"
 helm template \
     -n $namespace \
     -f values.yaml \
     nfs-client-provisioner \
     stable/nfs-client-provisioner \
-    | make_substitutions \
-    | kubectl apply -n $namespace -f -
+    | kubectl_apply $namespace
 
 
diff --git a/charts/prometheus/deploy.sh b/charts/prometheus/deploy.sh
index 7b9b2ed..9a18457 100644
--- a/charts/prometheus/deploy.sh
+++ b/charts/prometheus/deploy.sh
@@ -4,20 +4,17 @@ crd_version="v0.42.0"
 namespace=prometheus
 
 charts=(
-    etcd-cert-secret.yaml
-    app-servicemonitor.yaml
-    grafana-ldap-toml.yaml
     grafana-smtp-secret.yaml
+    etcd-cert-secret.yaml
     prometheus-etcd-cert.yaml
+    app-servicemonitor.yaml
     gitlab-redis-servicemonitor.yaml
     gitlab-servicemonitor.yaml
     ingress-nginx-servicemonitor.yaml
 )
 
-. ../config.sh
-
 install_prometheus_crds () {
-    crd=(
+    crds=(
         monitoring.coreos.com_alertmanagers.yaml
         monitoring.coreos.com_podmonitors.yaml
         monitoring.coreos.com_probes.yaml
@@ -26,32 +23,19 @@ install_prometheus_crds () {
         monitoring.coreos.com_servicemonitors.yaml
         monitoring.coreos.com_thanosrulers.yaml
     )
-    url=https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/v0.42.0/example/prometheus-operator-crd/
-    for i in ${crd[@]}; do
+    url=https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/$crd_version/example/prometheus-operator-crd/
+    for i in ${crds[@]}; do
         kubectl apply -f $url/$i
     done
 }
 
-disable_unset () {
-    read yaml
-    # disable ldap for grafana
-    [ -z "$grafana_ldap_toml" ] && \
-        echo "$yaml" | sed '/auth\.ldap:/,+1 s/true/false/; /ldap:/,+1 d' | read yaml
-    # disable storage
-    [ -z "$fileserver" ] && \
-        echo "$yaml" | sed '/prometheusSpec:/,+10d' $1 | read yaml
-    echo $yaml
-}
-
-kubectl create ns $namespace
+. ../config.sh
 install_prometheus_crds
-kubectl_apply $namespace "${charts[@]}"
-
+kubectl_apply_files $namespace "${charts[@]}"
 helm template \
-    -n $namespace \
-    -f values.yaml \
-    prometheus \
-    prometheus-community/kube-prometheus-stack \
-    | make_substitutions \
-    | kubectl -n $namespace -f -
+   -n $namespace \
+   -f values.yaml \
+   prometheus \
+   prometheus-community/kube-prometheus-stack \
+   | kubectl_apply $namespace
 
diff --git a/charts/sentry/deploy.sh b/charts/sentry/deploy.sh
index 7221b72..f07f917 100644
--- a/charts/sentry/deploy.sh
+++ b/charts/sentry/deploy.sh
@@ -5,14 +5,10 @@ namespace=sentry
 charts=()
 
 . ../config.sh
-
-kubectl create ns $namespace
-kubectl_apply $namespace "${charts[@]}"
-
+kubectl_apply_files $namespace "${charts[@]}"
 helm template \
     -n $namespace \
     -f values.yaml \
     sentry stable/sentry \
-    | make_substitutions \
-    | kubectl apply -n $namespace -f -
+    | kubectl_apply $namespace
 
diff --git a/charts/seq/deploy.sh b/charts/seq/deploy.sh
index ae3235a..dfc052d 100644
--- a/charts/seq/deploy.sh
+++ b/charts/seq/deploy.sh
@@ -5,14 +5,10 @@ namespace=seq
 charts=()
 
 . ../config.sh
-
-kubectl create ns $namespace
-kubectl_apply $namespace "${charts[@]}"
-
+kubectl_apply_files $namespace "${charts[@]}"
 helm template \
     -n $namespace \
     -f values.yaml \
     seq stable/seq \
-    | make_substitutions \
-    | kubectl apply -n $namespace -f -
+    | kubectl_apply $namespace
 
diff --git a/charts/vault/deploy.sh b/charts/vault/deploy.sh
index dcc3e3b..71e63f2 100755
--- a/charts/vault/deploy.sh
+++ b/charts/vault/deploy.sh
@@ -5,13 +5,10 @@ namespace=vault
 charts=()
 
 . ../config.sh
-
-kubectl create ns $namespace
-kubectl_apply $namespace "${charts[@]}"
+kubectl_apply_files $namespace "${charts[@]}"
 helm template \
     -n $namespace \
     -f vault-values.yaml \
     vault hashicorp/vault \
-    | make_substitutions \
-    | kubectl apply -n $namespace -f -
+    | kubectl_apply $namespace