1 # Dockerfile for building Ansible image for CentOS 6, with as few additional software as possible.
3 # @see http://docs.ansible.com/intro_installation.html#latest-release-via-yum
5 # [NOTE] To fix the "sudo: sorry, you must have a tty to run sudo" issue,
6 # we need to patch /etc/sudoers.
7 # @see http://unix.stackexchange.com/questions/122616/why-do-i-need-a-tty-to-run-sudo-if-i-can-sudo-without-a-password
8 # @see https://bugzilla.redhat.com/show_bug.cgi?id=1020147
17 MAINTAINER William Yeh <william.pjyeh@gmail.com>
20 RUN echo "===> Installing EPEL..." && \
21 yum -y install epel-release && \
24 echo "===> Installing initscripts to emulate normal OS behavior..." && \
25 yum -y install initscripts && \
28 echo "===> Installing Ansible..." && \
29 yum -y install ansible sudo && \
32 echo "===> Disabling sudo 'requiretty' setting..." && \
33 sed -i -e 's/^\(Defaults\s*requiretty\)/#--- \1/' /etc/sudoers && \
36 echo "===> Removing unused YUM resources..." && \
37 yum -y remove epel-release && \
41 echo "===> Adding hosts for convenience..." && \
42 mkdir -p /etc/ansible && \
43 echo '[local]\nlocalhost\n' > /etc/ansible/hosts
46 # default command: display Ansible version
47 CMD [ "ansible-playbook", "--version" ]