docker-alpine-net-tools/Dockerfile

FROM alpine

RUN set -ex; \
    apk update --no-cache; \
    apk add --no-cache -t .net-tools \
        bash bash-completion bind-tools busybox-extras coreutils iproute2 iputils mtr net-tools \
        netcat-openbsd tcpdump whois

ENTRYPOINT ["/bin/bash"]