Align env vars

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

README.md

@@ -16,6 +16,29 @@ You can build the docker container by running:
 docker build .
 ```
 
+# Usage
+
+## Environment config
+
+* `NSM_NAME`                     - Name of vL3 Server (default: "vL3-server")
+* `NSM_DIAL_TIMEOUT`             - timeout to dial NSMgr (default: "5s")
+* `NSM_REQUEST_TIMEOUT`          - timeout to request NSE (default: "15s")
+* `NSM_LISTEN_ON`                - listen on socket (default: "listen.on.sock")
+* `NSM_CONNECT_TO`               - url to connect to (default: "unix:///var/lib/networkservicemesh/nsm.io.sock")
+* `NSM_MAX_TOKEN_LIFETIME`       - maximum lifetime of tokens (default: "10m")
+* `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_SERVICE_NAMES`            - Name of providing service (default: "vL3")
+* `NSM_LABELS`                   - Endpoint labels
+* `NSM_REQUEST_LABELS`           - Adds labels to request on requesting vl3 nse
+* `NSM_IDLE_TIMEOUT`             - timeout for automatic shutdown when there were no requests for specified time. Set 0 to disable auto-shutdown. (default: "0")
+* `NSM_REGISTER_SERVICE`         - if true then registers network service on startup (default: "true")
+* `NSM_UNREGISTER_ITSELF`        - if true then NSE unregister itself when it completes working (default: "true")
+* `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")
+* `NSM_PREFIX_SERVER_URL`        - URL to VL3 IPAM server(s) (default: "vl3-ipam:5006")
+* `NSM_DNS_TEMPLATES`            - Represents domain naming templates in go-template format. It is using for generating the domain name for each nse/nsc in the vl3 network (default: "{{ index .Labels "podName" }}.{{ .NetworkService }}.")
+* `NSM_LOG_LEVEL`                - Log level (default: "INFO")
+
 # Testing
 
 ## Testing Docker container
@@ -72,4 +95,4 @@ docker run --privileged -e DLV_LISTEN_FORWARDER=:50000 -p 40000:40000 -p 50000:5
 ```
 
 Please note, the tests **start** the cmd, so until you connect to port 40000 with your debugger and walk the tests
-through to the point of running cmd, you will not be able to attach a debugger on port 50000 to the cmd.
+through to the point of running cmd, you will not be able to attach a debugger on port 50000 to the cmd.

main.go

@@ -111,7 +111,7 @@ type Config struct {
 	IdleTimeout            time.Duration     `default:"0" desc:"timeout for automatic shutdown when there were no requests for specified time. Set 0 to disable auto-shutdown." split_words:"true"`
 	RegisterService        bool              `default:"true" desc:"if true then registers network service on startup" split_words:"true"`
 	UnregisterItself       bool              `default:"true" desc:"if true then NSE unregister itself when it completes working" 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"`
 	PrefixServerURL        []url.URL         `default:"vl3-ipam:5006" desc:"URL to VL3 IPAM server(s)" split_words:"true"`
 	DNSTemplates           []string          `default:"{{ index .Labels \"podName\" }}.{{ .NetworkService }}." desc:"Represents domain naming templates in go-template format. It is using for generating the domain name for each nse/nsc in the vl3 network" split_words:"true"`