chore: add README

Author: Jesús Fernández

Dockerfile

@@ -81,6 +81,9 @@ COPY --from=fetcher /tmp/calicoctl /usr/local/bin/calicoctl
 # Installing termshark
 COPY --from=fetcher /tmp/termshark /usr/local/bin/termshark
 
+# Installing ghz
+COPY --from=fetcher /tmp/ghz /usr/local/bin/ghz
+
 # Installing grpcurl
 COPY --from=fetcher /tmp/grpcurl /usr/local/bin/grpcurl
 

README.md

@@ -165,6 +165,7 @@ To troubleshoot these issues, `netshoot` includes a set of powerful tools as rec
     ethtool \
     file\
     fping \
+    ghz \
     grpcurl \
     iftop \
     iperf \
@@ -720,6 +721,21 @@ grpcurl -plaintext grpc.server.com:80 my.custom.server.Service/Method
 
 More info, examples and lots of documentation on `Grpcurl` [here](https://github.com/fullstorydev/grpcurl)
 
+## Ghz
+ghz is a command-line tool that lets you load test a gRPC server. It's basically hey! for gRPC servers.
+
+Invoking an RPC on a trusted server (e.g. TLS without self-signed key or custom CA) that requires no client certs and supports server reflection is the simplest thing to do with ghz. This minimal invocation sends an empty request body:
+
+```bash
+ghz grpc.server.com:443 --call my.custom.server.Service/Method
+
+# no TLS
+ghz --insecure grpc.server.com:80 --call my.custom.server.Service/Method
+```
+
+More info, examples and lots of documentation on `Ghz` [here](https://github.com/bojand/ghz)
+
+
 ## Fortio
 
 Fortio is a fast, small (4Mb docker image, minimal dependencies), reusable, embeddable go library as well as a command line tool and server process, the server includes a simple web UI and REST API to trigger run and see graphical representation of the results (both a single latency graph and a multiple results comparative min, max, avg, qps and percentiles graphs).

build/fetch_binaries.sh

@@ -48,6 +48,17 @@ get_termshark() {
   esac
 }
 
+get_ghz() {
+  if [ "$ARCH" == "amd64" ]; then
+    TERM_ARCH=x86_64
+  else
+    TERM_ARCH="$ARCH"
+  fi
+  VERSION=$(get_latest_release bojand/ghz | sed -e 's/^v//')
+  LINK="https://github.com/bojand/ghz/releases/download/v${VERSION}/ghz-linux-${TERM_ARCH}.tar.gz"
+  wget "$LINK" -O /tmp/ghz && chmod +x /tmp/ghz
+}
+
 get_grpcurl() {
   if [ "$ARCH" == "amd64" ]; then
     TERM_ARCH=x86_64
@@ -80,5 +91,6 @@ get_fortio() {
 get_ctop
 get_calicoctl
 get_termshark
+get_ghz
 get_grpcurl
 get_fortio