diff --git a/build_util/build_in_docker b/build_util/build_in_docker
index 72d8b76..caa6996 100755
--- a/build_util/build_in_docker
+++ b/build_util/build_in_docker
@@ -1,6 +1,6 @@
 #!/bin/bash
 set -e
 
-docker build --rm -t local/c7-buildhost docker
+docker build --rm -t local/c7-buildhost docker/build
 
 docker run -it -v `pwd`:/root/build local/c7-buildhost /root/build/build_util/build_rpm
diff --git a/docker/build/Dockerfile b/docker/build/Dockerfile
new file mode 100644
index 0000000..207828b
--- /dev/null
+++ b/docker/build/Dockerfile
@@ -0,0 +1,31 @@
+# General build RPM environment for CentOS 6.x
+#
+# VERSION       0.0.1
+
+FROM centos:centos7
+MAINTAINER Derry Hamilton <derryh@postcodelottery.co.uk>
+
+# Install up-to-date epel rpm repository
+RUN yum -y install epel-release
+
+# Install java first, to get a sensible one.
+RUN yum -y install java-1.8.0-openjdk-devel
+
+# Install various packages to get compile environment
+RUN yum -y groupinstall 'Development Tools'
+
+# Install git command to access GitHub repository
+RUN yum -y install git
+
+# Install rpm-build to use rpmrebuild command
+RUN yum -y install rpm-build
+
+# Install yum-utils to use yumdownloader command
+RUN yum -y install yum-utils
+
+# Install rpmdevtools to use rpmdev-setuptree command
+RUN yum -y install rpmdevtools
+
+# Install rpmdevtools to use rpmdev-setuptree command
+RUN yum -y install maven
+RUN mkdir -p /root/rpmbuild/SOURCES