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S2I Image for GoWS - A Tiny Web Server

GoWS is a golang based static content web server.

Quickstart

  1. Clone this repository: git clone https://github.com/redhat-cop/containers-quickstarts
  2. cd containers-quickstarts/build-s2i-gows
  3. Run ansible-galaxy install -r requirements.yml --roles-path=roles
  4. Login to Openshift: oc login -u <username> https://master.example.com:8443
  5. Run openshift-applier: ansible-playbook -i .applier/hosts roles/openshift-applier/playbooks/openshift-cluster-seed.yml

Now we can oc get routes to get the hostname of the route that was just created, or click the link in the OpenShift Web Console, and test our newly published gows site. By default our simple demo site will be deployed.

Overview

GoWS is a webserver built to do nothing more than to serve static content web sites on the smallest possible footprint. This S2I-enabled image makes this one step easier by being able to stream that content straight into the image from source.

This repo contains both a Dockerfile for building the image and a directory of sample content.

Bill of Materials

The requirements of this image are simple. All you need are:

OpenShift objects

The openshift-applier will create the following OpenShift objects:

Environment Variables

Openshift Build Vars

The build supports a few environment variables to specify the source of the site. The default values can be changed by setting the variables below in the seed hosts file.

Variable Name Default Value Description
SITE_CONTEXT_DIR build-s2i-gows/demo Location of the site files within the git repository
SITE_SOURCE_REPOSITORY_REF master Git branch/tag of the site files
SITE_SOURCE_REPOSITORY_URL https://github.com/redhat-cop/containers-quickstarts Git repository of the site files

Docker Build Vars

This image supports a couple of simple environment variables for customizing directory locations.

Variable Name Default Value Description
SRC_DIR /opt/site/src Location to copy source from. This will not change where S2I clones the source to. Only change this value if what you are copying is a sub file or directory.
GOWS_DIR /opt/site/static Location to copy source to. This will be where content is served from. This must match the value of GOWS_DIR at runtime

Docker Runtime Vars

Variable Name Default Value Description
GOWS_DIR /opt/site/static Location to serve static content from

Pulling the Image

This image is available from Docker cloud:

docker pull redhatcop/build-s2i-gows

Building the Image

cd ./image
docker build -t redhatcop/build-s2i-gows .

Cleaning up

oc delete project s2i-gows