media: add wireguard preshared key support

custom_helm_charts/gluetun/README.md

@@ -9,6 +9,7 @@ AirVPN WireGuard values:
   - `env.WIREGUARD_ADDRESSES` -> WireGuard tunnel address(es) (IPv4 /32 and optional IPv6)
   - `env.SERVER_HOSTNAMES` -> stable AirVPN server hostname
 - Create a Secret named `gluetun-wireguard` with key `WIREGUARD_PRIVATE_KEY` from your AirVPN WireGuard config (do not commit the key).
+  - Add `WIREGUARD_PRESHARED_KEY` from the same AirVPN WireGuard config.
   - `helm-values/gluetun_values.yaml` sets `secret.create: false` so the chart does not create a placeholder secret.
 
 Validation:

custom_helm_charts/gluetun/templates/secret.yaml

@@ -11,4 +11,5 @@ metadata:
 type: Opaque
 stringData:
   WIREGUARD_PRIVATE_KEY: {{ .Values.secret.privateKey | quote }}
+  WIREGUARD_PRESHARED_KEY: {{ .Values.secret.presharedKey | quote }}
 {{- end }}

custom_helm_charts/gluetun/values.yaml

@@ -15,6 +15,11 @@ env:
       secretKeyRef:
         name: gluetun-wireguard
         key: WIREGUARD_PRIVATE_KEY
+  - name: WIREGUARD_PRESHARED_KEY
+    valueFrom:
+      secretKeyRef:
+        name: gluetun-wireguard
+        key: WIREGUARD_PRESHARED_KEY
   - name: WIREGUARD_ADDRESSES
     value: "REPLACE_ME"
   - name: SERVER_HOSTNAMES
@@ -32,6 +37,7 @@ secret:
   create: true
   name: gluetun-wireguard
   privateKey: "REPLACE_ME"
+  presharedKey: "REPLACE_ME"
 
 service:
   type: ClusterIP