diff --git a/templates/gitops-agent/deployment.yaml b/templates/gitops-agent/deployment.yaml
index 0471b84..2fb042b 100755
--- a/templates/gitops-agent/deployment.yaml
+++ b/templates/gitops-agent/deployment.yaml
@@ -74,6 +74,35 @@ spec:
               name: {{ .Values.agent.name }}
           - secretRef:
               name: {{ .Values.agent.name }}
+        env:
+          - name: REDIS_USERNAME
+            valueFrom:
+              secretKeyRef:
+                name: {{ default "argocd-redis" .Values.externalRedis.existingSecret }}
+                key: redis-username
+                optional: true
+          - name: REDIS_PASSWORD
+            valueFrom:
+              secretKeyRef:
+                name: {{ default "argocd-redis" .Values.externalRedis.existingSecret }}
+                {{- if .Values.externalRedis.host }}
+                key: redis-password
+                optional: true
+                {{- else }}
+                key: auth
+                {{- end }}
+          - name: REDIS_SENTINEL_USERNAME
+            valueFrom:
+              secretKeyRef:
+                name: {{ default (include "argo-cd.redis.fullname" .) .Values.externalRedis.existingSecret }}
+                key: redis-sentinel-username
+                optional: true
+          - name: REDIS_SENTINEL_PASSWORD
+            valueFrom:
+              secretKeyRef:
+                name: {{ default (include "argo-cd.redis.fullname" .) .Values.externalRedis.existingSecret }}
+                key: redis-sentinel-password
+                optional: true
         volumeMounts:
         {{- with .Values.agent.volumeMounts }}
           {{- toYaml . | nindent 8 }}
diff --git a/values.yaml b/values.yaml
index 4b52baf..9acb498 100644
--- a/values.yaml
+++ b/values.yaml
@@ -553,3 +553,19 @@ controller:
 
 redis:
   name: redis
+
+# External Redis parameters
+externalRedis:
+  # -- External Redis server host
+  host: ""
+  # -- External Redis username
+  username: ""
+  # -- External Redis password
+  password: ""
+  # -- External Redis server port
+  port: 6379
+  # -- The name of an existing secret with Redis (must contain key `redis-password`) and Sentinel credentials.
+  # When it's set, the `externalRedis.password` parameter is ignored
+  existingSecret: ""
+  # -- External Redis Secret annotations
+  secretAnnotations: {}