update ndots

Signed-off-by: Ahmet Alp Balkan <[email protected]>

README.md

@@ -73,8 +73,8 @@ page](https://github.com/ahmetb/runsd).
 ## Quickstart
 
 You can deploy [this](./example) sample application to Cloud Run to try out
-querying other **private** Cloud Run services  **without tokens** and **without full `.run.app`
-domains** by directly using curl:
+querying other **private** Cloud Run services  **without tokens** and **without
+full `.run.app` domains** by directly using curl:
 
 ```sh
 gcloud alpha run deploy curl-app --platform=managed

example/Dockerfile

@@ -10,6 +10,6 @@ RUN apk add --no-cache curl bind-tools
 COPY --from=build /app /app
 
 # This is how you integrate with runsd:
-ADD https://github.com/ahmetb/runsd/releases/download/v0.0.0-rc.3/runsd /runsd
+ADD https://github.com/ahmetb/runsd/releases/download/v0.0.0-rc.4/runsd /runsd
 RUN chmod +x /runsd
-ENTRYPOINT ["/runsd", "--", "/app"]
+ENTRYPOINT ["/runsd", "-v=5", "--", "/app"]

runsd/main.go

@@ -27,11 +27,11 @@ import (
 )
 
 const (
-	resolvConf           = "/etc/resolv.conf"
-	internalDomain       = "run.internal."
-	defaultNdots         = 4
-	defaultDnsPort       = "53"
-	defaultHTTPProxyPort = "80"
+	resolvConf            = "/etc/resolv.conf"
+	defaultInternalDomain = "run.internal"
+	defaultNdots          = 3
+	defaultDnsPort        = "53"
+	defaultHTTPProxyPort  = "80"
 )
 
 var (
@@ -61,8 +61,8 @@ func main() {
 	klog.InitFlags(nil)
 	defer klog.Flush()
 	flag.StringVar(&flResolvConf, "resolv_conf_file", resolvConf, "[debug-only] path to resolv.conf(5) file to read/write")
-	flag.StringVar(&flInternalDomain, "domain", internalDomain, "internal domain")
-	flag.IntVar(&flNdots, "ndots", defaultNdots, "ndots setting for resolv conf, e.g. for -domain=a.b. this should be 4")
+	flag.StringVar(&flInternalDomain, "domain", defaultInternalDomain, "internal zone (without a trailing dot)")
+	flag.IntVar(&flNdots, "ndots", defaultNdots, "ndots setting for resolv conf (e.g. for -domain=a.b this should be 3)")
 	flag.StringVar(&flNameserver, "nameserver", "", "override used nameserver (default: from -resolv_conf_file)")
 	flag.StringVar(&flRegion, "gcp_region", "", "[debug-only] override GCP region (do not infer from metadata svc)")
 	flag.BoolVar(&flSkipDNSServer, "skip_dns_hijack", false, "[debug-only] do not start a DNS server for service discovery")