+# Dockerfile for building Ansible image for CentOS 6, with as few additional software as possible.
+#
+# @see http://docs.ansible.com/intro_installation.html#latest-release-via-yum
+#
+# [NOTE] To fix the "sudo: sorry, you must have a tty to run sudo" issue,
+# we need to patch /etc/sudoers.
+# @see http://unix.stackexchange.com/questions/122616/why-do-i-need-a-tty-to-run-sudo-if-i-can-sudo-without-a-password
+# @see https://bugzilla.redhat.com/show_bug.cgi?id=1020147
+#
+# Version 1.0
+#
+
+
+# pull base image
+FROM centos:centos6
+
+MAINTAINER William Yeh <william.pjyeh@gmail.com>
+
+
+RUN echo "===> Installing EPEL..." && \
+ yum -y install epel-release && \
+ \
+ \
+ echo "===> Installing Ansible..." && \
+ yum -y install ansible sudo && \
+ \
+ \
+ echo "===> Disabling sudo 'requiretty' setting..." && \
+ sed -i -e 's/^\(Defaults\s*requiretty\)/#--- \1/' /etc/sudoers && \
+ \
+ \
+ echo "===> Removing unused YUM resources..." && \
+ yum -y remove epel-release && \
+ yum clean all && \
+ \
+ \
+ echo "===> Adding hosts for convenience..." && \
+ mkdir -p /etc/ansible && \
+ echo '[local]\nlocalhost\n' > /etc/ansible/hosts
+
+
+COPY ansible-playbook-wrapper /usr/local/bin/
+
+ONBUILD WORKDIR /tmp
+ONBUILD COPY . /tmp
+
+
+
+# default command: display Ansible version
+CMD [ "ansible-playbook", "--version" ]