Dockerfile

# nginx-centos7
# Here you can use whatever image base is relevant for your application.
FROM centos:centos7

# Here you can specify the maintainer for the image that you're building
MAINTAINER Victor Palade <ipalade@redhat.com>

# Export the environment variable that provides information about the application.
# Replace this with the according version for your application.
ENV NGINX_VERSION=1.6.3

# Set the labels that are used for OpenShift to describe the builder image.
LABEL io.k8s.description="Nginx Webserver" \
    io.k8s.display-name="Nginx 1.6.3" \
    io.openshift.expose-services="8080:http" \
    io.openshift.tags="builder,webserver,html,nginx" \
    # this label tells s2i where to find its mandatory scripts
    # (run, assemble, save-artifacts)
    io.openshift.s2i.scripts-url="image:///usr/libexec/s2i"

# Install our Nginx package and clean the yum cache so that we don't have any
# cached files waste space.
RUN yum install -y epel-release  && \
    yum install -y --setopt=tsflags=nodocs nginx && \
    yum clean all

# We will change the default port for nginx (It's required if you plan on
# running images as non-root user).
RUN sed -i 's/80/8080/' /etc/nginx/nginx.conf

# Copy the S2I scripts to /usr/libexec/s2i since we set the label that way
COPY  ["run", "assemble", "save-artifacts", "usage", "/usr/libexec/s2i/"]

# Modify the usage script in your application dir to inform the user how to run
# this image.
CMD ["/usr/libexec/s2i/usage"]