rustfs#1916 Allow existing secrets to be used for tls certs in ingress (#1918)

Signed-off-by: mkrueger92 <7305571+mkrueger92@users.noreply.github.com>
Co-authored-by: houseme <housemecn@gmail.com>

helm/rustfs/templates/ingress.yaml

@@ -31,7 +31,11 @@ spec:
         {{- range .Values.ingress.hosts }}
         - {{ .host | quote }}
         {{- end }}
+      {{- if .Values.ingress.tls.existingSecret.enabled }}
+      secretName: {{ required "ingress.tls.existingSecret.name must be set when ingress.tls.existingSecret.enabled is true" .Values.ingress.tls.existingSecret.name }}
+      {{- else }}
       secretName: {{ include "rustfs.fullname" $ }}-tls
+      {{- end }}
   {{- end }}
   rules:
     {{- range .Values.ingress.hosts }}

helm/rustfs/templates/secret-tls.yaml

@@ -1,4 +1,4 @@
-{{- if and .Values.ingress.tls.enabled (not .Values.ingress.tls.certManager.enabled) -}}
+{{- if and .Values.ingress.tls.enabled (not .Values.ingress.tls.certManager.enabled) (not .Values.ingress.tls.existingSecret.enabled) -}}
 apiVersion: v1
 kind: Secret
 metadata:
@@ -8,6 +8,6 @@ metadata:
     {{- toYaml .Values.commonLabels | nindent 4 }}
 type: kubernetes.io/tls
 data:
-  tls.crt : {{ .Values.ingress.tls.crt | b64enc | quote }}
+  tls.crt: {{ .Values.ingress.tls.crt | b64enc | quote }}
-  tls.key : {{ .Values.ingress.tls.key | b64enc | quote }}
+  tls.key: {{ .Values.ingress.tls.key | b64enc | quote }}
 {{- end }}

helm/rustfs/values.yaml

@@ -144,9 +144,21 @@ ingress:
           pathType: Prefix
   tls:
     enabled: false # Enable tls and access rustfs via https.
+
     certManager:
       enabled: false # Enable certmanager to generate certificate for rustfs, default false.
-    secretName: secret-tls
+
+    existingSecret:
+      # To use an existing secret for tls certificates in the ingress enable this,
+      # set the name of the existing secret and make sure that the secret contains
+      # values for the keys "crt" and "key".
+      enabled: false
+      name: ""
+
+    # If the certmanager is not used and no existing secret is used to provide a tls certificate,
+    # then this certificate can be configured here. A secret will be created and used.
+    # Note: The following input will be base64 encoded during secret creation. There is no need
+    #       to provide it base64 encoded here already.
     crt: tls.crt
     key: tls.key