Align env vars (#677)

Signed-off-by: Arpad Kiss <arpad.a.kiss@est.tech>

README.md

@@ -22,6 +22,23 @@ You can build the docker container by running:
 docker build .
 ```
 
+# Usage
+
+## Environment config
+
+
+* `NSM_NAME`                           - Name of Network service manager (default: "nmgr")
+* `NSM_LISTEN_ON`                      - url to listen on. tcp:// one will be used a public to register NSM. (default: "unix:///var/lib/networkservicemesh/nsm.io.sock")
+* `NSM_REGISTRY_URL`                   - A NSE registry url to use (default: "tcp://localhost:5001")
+* `NSM_MAX_TOKEN_LIFETIME`             - maximum lifetime of tokens (default: "10m")
+* `NSM_REGISTRY_SERVER_POLICIES`       - paths to files and directories that contain registry server policies (default: "etc/nsm/opa/common/.*.rego,etc/nsm/opa/registry/.*.rego,etc/nsm/opa/server/.*.rego")
+* `NSM_REGISTRY_CLIENT_POLICIES`       - paths to files and directories that contain registry client policies (default: "etc/nsm/opa/common/.*.rego,etc/nsm/opa/registry/.*.rego,etc/nsm/opa/client/.*.rego")
+* `NSM_LOG_LEVEL`                      - Log level (default: "INFO")
+* `NSM_DIAL_TIMEOUT`                   - Timeout for the dial the next endpoint (default: "750ms")
+* `NSM_FORWARDER_NETWORK_SERVICE_NAME` - the default service name for forwarder discovering (default: "forwarder")
+* `NSM_OPEN_TELEMETRY_ENDPOINT`        - OpenTelemetry Collector Endpoint (default: "otel-collector.observability.svc.cluster.local:4317")
+* `NSM_METRICS_EXPORT_INTERVAL`        - interval between mertics exports (default: "10s")
+
 # Testing
 
 ## Testing Docker container
@@ -82,4 +99,4 @@ through to the point of running nsmgr, you will not be able to attach a debugger
 
 # Build Docker image compatible with integration testing suite: 
 
-`docker build . -t networkservicemeshci/cmd-nsmgr:master && kind load docker-image networkservicemeshci/cmd-nsmgr:master` 
+`docker build . -t networkservicemeshci/cmd-nsmgr:master && kind load docker-image networkservicemeshci/cmd-nsmgr:master` 

internal/config/config.go

@@ -35,6 +35,6 @@ type Config struct {
 	LogLevel                    string        `default:"INFO" desc:"Log level" split_words:"true"`
 	DialTimeout                 time.Duration `default:"750ms" desc:"Timeout for the dial the next endpoint" split_words:"true"`
 	ForwarderNetworkServiceName string        `default:"forwarder" desc:"the default service name for forwarder discovering" split_words:"true"`
-	OpenTelemetryEndpoint       string        `default:"otel-collector.observability.svc.cluster.local:4317" desc:"OpenTelemetry Collector Endpoint"`
+	OpenTelemetryEndpoint       string        `default:"otel-collector.observability.svc.cluster.local:4317" desc:"OpenTelemetry Collector Endpoint" split_words:"true"`
 	MetricsExportInterval       time.Duration `default:"10s" desc:"interval between mertics exports" split_words:"true"`
 }