Merge pull request #1 from whindes/docker

Initial Commit to docker branch.

Dockerfile

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+FROM alpine:3.6
+MAINTAINER William Hindes <bhindes@hotmail.com>
+
+ENV GOPATH="/usr/bin"
+ENV GOROOT="/usr/lib/go"
+
+RUN apk --update --no-cache add docker sudo bash && \
+apk upgrade --update && \
+apk add --no-cache --virtual=.build-dependencies ca-certificates python2 wget go make \
+autoconf findutils make pkgconf libtool g++ automake linux-headers git && \
+wget "https://storage.googleapis.com/kubernetes-release/release/v1.8.0/bin/linux/amd64/kubectl" -O "/usr/local/bin/kubectl" && \
+mkdir -p /usr/bin/src/k8s.io && cd /usr/bin/src/k8s.io && chmod +x /usr/local/bin/kubectl && \
+git clone https://github.com/kubernetes/minikube && cd minikube && \
+make && mv ./out/minikube /usr/local/bin/minikube && rm -rf /usr/bin/src/k8s.io && rm -rf /tmp/* && \
+minikube start --vm-driver none --kubernetes-version v1.7.5 -v 7 --memory 1024 --disk-size 4g && \
+apk del .build-dependencies
+ADD ./dockerd-entrypoint.sh /usr/local/bin/
+ADD ./dockerd-cmd.sh /usr/local/bin/
+ADD ./setup-compose /usr/local/bin/
+
+
+EXPOSE 2375 30000
+ENTRYPOINT ["dockerd-entrypoint.sh"]
+CMD ["dockerd-cmd.sh"]

README.md

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+![Docker](https://msopentech.com/wp-content/uploads/docker-logo.png)
+
+# About
+Pure alpine linux docker. Docker inside docker.
+> [wikipedia.org/wiki/Docker](https://en.wikipedia.org/wiki/Docker_(software))
+
+# Usage
+
+## System Requirements
+
+The ~700Mb image has an already created minkikube instance with 4Gb diskspace and 1Gb RAM.
+This is only for experimentation and demo only.  Do not use in production.  The minikube binary from the official
+repository does not work in Alpine and had to be built from source.  (See Dockerfile)
+
+## Commandline
+
+Starts a shell ready to docker & minikube
+```bash
+docker run -ti --privileged whindes/alpine-minikube sh
+```
+
+## Minikube
+
+After the commands below navigate to http://<your_host_docker>:30000/#!/overview?namespace=default
+
+```bash
+docker run -ti -p 30000 -p 31920 --rm --privileged whindes/alpine-minikube sh
+[Hit Enter] to get the shell prompt
+minikube start
+kubectl run webserver --image=nginx:alpine
+kubectl expose deployment webserver --type=LoadBalancer --port=80
+```
+
+## Daemon
+
+```bash
+docker run --name alpine-docker -p 2375:2375 --privileged -d whindes/alpine-minikube
+```
+
+To start a shell in your new container.
+
+```bash
+docker exec -ti alpine-docker /bin/sh
+```
+
+## Inside the container shell
+
+Now you can start containers inside your alpine-docker container.
+
+```bash
+docker run -d elasticsearch
+docker images
+docker ps -a
+docker volume ls
+```
+
+## Docker-compose
+
+If you need docker-compose inside your alpine-docker container.
+```bash
+setup-compose
+docker-compose up
+```
+
+## Remote docker
+
+Set your client system variables and go
+```bash
+export DOCKER_API_VERSION=1.23
+export DOCKER_HOST='tcp://127.0.0.1:2375'
+docker ps
+docker-compose up
+```

dockerd-cmd.sh

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+#!/bin/sh
+echo "Starting Docker Daemon"
+docker daemon --host=unix:///var/run/docker.sock --host=tcp://0.0.0.0:2375 --storage-driver=vfs

dockerd-entrypoint.sh

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+#!/bin/sh
+
+#clean pid after unexpected kill
+if [ -f "/var/run/docker.pid" ]; then
+		rm -rf /var/run/docker.pid
+fi
+
+# Add docker daemon as command if needed
+if [[ "$1" != 'dockerd-cmd.sh' ]]; then
+	echo "Starting Docker Daemon"
+	docker daemon \
+			--host=unix:///var/run/docker.sock \
+			--host=tcp://0.0.0.0:2375  \
+			--storage-driver=vfs &
+fi
+
+# set docker settings
+echo "export DOCKER_HOST='tcp://127.0.0.1:2375'" >> /etc/profile
+# reread all config
+source /etc/profile
+
+exec "$@"

setup-compose

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+#!/bin/sh
+apk add --update openssl
+wget https://github.com/docker/compose/releases/download/1..16.1/run.sh -O /usr/local/bin/docker-compose
+sed -i "s/\/bin\/bash/\/bin\/sh/g" /usr/local/bin/docker-compose
+chmod a+x /usr/local/bin/docker-compose
+docker-compose --help