Testing resolv.conf options

Dockerfile-bindtest

FROM debian

RUN apt-get update && apt-get -y install bind9

EXPOSE 53
EXPOSE 53/udp

CMD ["/usr/sbin/named", "-f"]

Dockerfile-hosttest

FROM debian

RUN apt-get update && apt-get install -y strace bind9-host

CMD ["/bin/bash","-l"]

Makefile

all: run

bindtest: Dockerfile-hosttest
        -mkdir bindtest
        cp Dockerfile-bindtest bindtest/Dockerfile
        docker build -t bindtest bindtest

hosttest: Dockerfile-bindtest
        -mkdir hosttest
        cp Dockerfile-hosttest hosttest/Dockerfile
        docker build -t hosttest hosttest

kill:
        -docker kill bindtest.1
        -docker kill bindtest.2
        -docker kill bindtest.3
        -docker kill bindtest.4
        -docker kill hosttest

rm: kill
        -docker rm bindtest.1
        -docker rm bindtest.2
        -docker rm bindtest.3
        -docker rm bindtest.4
        -docker rm hosttest

run: bindtest hosttest rm
        docker run -d --name bindtest.1 bindtest
        docker run -d --name bindtest.2 bindtest
        docker run -d --name bindtest.3 bindtest
        docker run -d --name bindtest.4 bindtest

        docker inspect --format '{{ .NetworkSettings.IPAddress }}' bindtest.1 >addresses
        docker inspect --format '{{ .NetworkSettings.IPAddress }}' bindtest.2 >>addresses
        docker inspect --format '{{ .NetworkSettings.IPAddress }}' bindtest.3 >>addresses
        docker inspect --format '{{ .NetworkSettings.IPAddress }}' bindtest.4 >>addresses

        docker run --rm -t -i -v `pwd`:/root --name hosttest hosttest