simple docker socket mount example

Dockerfile

FROM ubuntu:16.04

# install docker
RUN apt-get update
RUN apt-get install -y apt-transport-https ca-certificates curl software-properties-common
RUN curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
RUN add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
RUN apt-get update
RUN apt-get install -y docker-ce

# example usage:
# docker run -it -v /var/run/docker.sock:/var/run/docker.sock this_image bash
# run docker commands inside container to manupulate dockerd on host.