Add protocol to Redis URL

Signed-off-by: Stefan Prodan <stefan.prodan@gmail.com>

charts/podinfo/README.md

@@ -40,7 +40,7 @@ Parameter | Default | Description
 `logLevel` | `info` | Log level: `debug`, `info`, `warn`, `error`
 `backend` | `None` | Echo backend URL
 `backends` | `[]` | Array of echo backend URLs
-`cache` | `None` | Redis address in the format `<host>:<port>`
+`cache` | `None` | Redis address in the format `tcp://<host>:<port>`
 `redis.enabled` | `false` | Create Redis deployment for caching purposes
 `ui.color` | `#34577c` |  UI color
 `ui.message` | `None` |  UI greetings message

charts/podinfo/templates/deployment.yaml

@@ -73,7 +73,7 @@ spec:
             {{- if .Values.cache }}
             - --cache-server={{ .Values.cache }}
             {{- else if .Values.redis.enabled }}
-            - --cache-server={{ template "podinfo.fullname" . }}-redis:6379
+            - --cache-server=tcp://{{ template "podinfo.fullname" . }}-redis:6379
             {{- end }}
             - --level={{ .Values.logLevel }}
             - --random-delay={{ .Values.faults.delay }}

charts/podinfo/values-prod.yaml

@@ -77,7 +77,7 @@ hpa:
   # average http requests per second per pod (k8s-prometheus-adapter)
   requests:
 
-# Redis address in the format <host>:<port>
+# Redis address in the format tcp://<host>:<port>
 cache: ""
 # Redis deployment
 redis:

charts/podinfo/values.yaml

@@ -81,7 +81,7 @@ hpa:
   # average http requests per second per pod (k8s-prometheus-adapter)
   requests:
 
-# Redis address in the format <host>:<port>
+# Redis address in the format tcp://<host>:<port>
 cache: ""
 # Redis deployment
 redis:

cmd/podinfo/main.go

@@ -52,7 +52,7 @@ func main() {
 	fs.Bool("unready", false, "when set, ready state is never reached")
 	fs.Int("stress-cpu", 0, "number of CPU cores with 100 load")
 	fs.Int("stress-memory", 0, "MB of data to load into memory")
-	fs.String("cache-server", "", "Redis address in the format <host>:<port>")
+	fs.String("cache-server", "", "Redis address in the format 'tcp://<host>:<port>'")
 	fs.String("otel-service-name", "", "service name for reporting to open telemetry address, when not set tracing is disabled")
 
 	versionFlag := fs.BoolP("version", "v", false, "get version number")