src/snabb wrapper when building container snabb

Dockerfile

@@ -7,4 +7,7 @@ FROM alpine:3.7
 RUN apk add --no-cache libgcc
 COPY --from=build /snabb/src/snabb /usr/local/bin/
 
+VOLUME /u
+WORKDIR /u
+
 ENTRYPOINT ["/usr/local/bin/snabb"]

Makefile

@@ -49,5 +49,8 @@ dist: all
 
 docker:
 	docker build -t snabb .
+	@chmod a+rx launch-docker-container.sh
+	@ln -sf ../launch-docker-container.sh src/snabb
 	@echo "Usage: docker run -ti --rm snabb <program> ..."
+	@echo "or simply call 'src/snabb <program> ...'"
 .SERIAL: all

launch-docker-container.sh

@@ -0,0 +1,33 @@
+#!/bin/sh
+
+name=$(basename $0)
+if [ ".$name" == ".launch-docker-container.sh" ]; then
+  cat <<EOF 
+$0
+please link this script to the container image you like to run
+
+e.g. to launch latest alpine image with the current working directory mounted:
+
+$ ln -s launch-docker-container.sh alpine
+$ ./alpine
+/u # ls
+alpine                   launch-docker-container.sh
+/u # uname -a
+Linux 68b18fa5b4d4 4.9.75-linuxkit-aufs #1 SMP Tue Jan 9 10:58:17 UTC 2018 x86_64 Linux
+/u # exit
+
+It also accept arguments:
+
+$ alpine uname -a
+Linux 3b18ba5282f3 4.9.75-linuxkit-aufs #1 SMP Tue Jan 9 10:58:17 UTC 2018 x86_64 Linux
+$
+EOF
+  exit 1
+fi
+
+img=$(docker images -q $name)
+if [ -z "$img" ]; then
+  echo "docker image $name doesn't exist"
+fi
+
+exec docker run -ti --rm -v ${PWD}:/u --workdir /u $name $@