I am currently working on building out a vPod nested ESXi lab environment that will be deployed through OpenStack’s Heat orchestration service. As I worked out the vPod application components, I realized that I wanted to include a single Linux VM that would run various services inside Docker containers.
I needed a Bind Docker container!
It seems like everything in a VMware SDDC environment needs both the forward and reverse records working properly — so I started here. The Docker container is completely self-contained — all external zone data is stored in S3 and downloaded when the container is built.
The Dockerfile for the container contains the following code:
# Designed to be used in conjunction with a nested ESXi # virtual lab environment deployed through an OpenStack # Heat template. FROM ubuntu:latest MAINTAINER email@example.com RUN apt-get -y update && apt-get -y install bind9 dnsutils curl RUN curl https://s3-us-west-1.amazonaws.com/virtualelephant-vpod-bind/db.192.168 -o /etc/bind/db.192.168 && curl https://s3-us-west-1.amazonaws.com/virtualelephant-vpod-bind/db.vsphere.local -o /etc/bind/db.vsphere.local && curl https://s3-us-west-1.amazonaws.com/virtualelephant-vpod-bind/named.conf.options -o /etc/bind/named.conf.options && curl https://s3-us-west-1.amazonaws.com/virtualelephant-vpod-bind/named.conf.local -o /etc/bind/named.conf.local EXPOSE 53 CMD ["/usr/sbin/named", "-g", "-c", "/etc/bind/named.conf", "-u", "bind"]
To start the container, I setup the Ubuntu VM to execute the following code when it is deployed inside OpenStack.
# docker run -d -p 53:53 -p 53:53/udp chrismutchler/vpod-bind
Once running, it is now able to provide the critical DNS service inside the vPod ESXi environment. From here it is onto building out the Heat template that will leverage the container.