Docker image that can be SSHed in(CentOS6)

For Ansible practice, I wrote this because I wanted an image that can be entered by SSH.

$ docker build -t docker_ssh:latest .
$ docker run -d -p 2222:22 docker_ssh:latest
$ ssh -p 2222 kabigon@localhost

	FROM centos:centos6

	# 後々必要そうなパッケージをまとめてインストール
	RUN yum -y update
	RUN yum -y install git vim && \
	yum clean all
	RUN yum -y install automake bison bzip2 gcc gcc-c++ gdbm-devel git libffi-devel libtool libxml2-devel libxslt-devel make openssh openssh-clients openssh-server openssl openssl-devel passwd patch readline readline-devel rsync sqlite-devel sudo tar tcl tcl-devel tk tk-devel vim wget which zlib zlib-devel && \
	yum clean all

	# ユーザー作成
	RUN useradd kabigon
	RUN echo 'kabigon:password' \|chpasswd
	RUN echo "kabigon ALL=(ALL) ALL" >> /etc/sudoers

	# SSHD の初期化
	RUN /etc/init.d/sshd start
	RUN /etc/init.d/sshd stop

	# 22番ポートを外に開ける
	EXPOSE 22

	# SSHD をデーモンとして起動する
	CMD ["/usr/sbin/sshd", "-D"]

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