openshift-dashboard

OpenShift Dashboard

Dashboard for visualization of multi-projects resources in OpenShift.

This is a web application that aims to display a nice dashboard of your resources across multiple projects in an OpenShift instance.

How It Works

It is a Go webapp that uses the OpenShift API to build a dashboard, based on Start Bootstrap - SB Admin 2.

• If the application is running in a container in an OpenShift Cluster, it will connect to the OpenShift API Server using the information available from the environment (mainly the service account token secret).

• If the application is not running in an OpenShift Cluster, it uses the default configuration file to connect to the OpenShift API Server. So it requires that you login with the oc client before starting the application.

It displays a summary of the following resources:

• Routes
• Services
• Pods
• Containers
• Images
• Builds
• Deployments
• and... Applications

Applications

The dashboard also groups resources by applications. An application is just a logical wrapper for multiple resources. You can assign resources to an application by setting a label named application on each resource (object):

- kind: SomeObject
  metadata:
    name: myobject
    labels:
      application: myapplication

The dashboard will then extracts all declared applications from the labels of your resources.

• Why not use projects to represents applications?
  • Because we could have multiple applications shared in a single project, or some projects which produces builds and images, but are not applications.

Running on OpenShift

If you want to deploy this dashboard on an OpenShift cluster, you can use the provided template, that will create all the required resources:

• a dashboard Service Account that will be used by the running pod
• a Build Config that will use the Dockerfile to build the Docker image
• a Deployment Config that will deploy a simple pod with a single container
• a Service in front of the pod(s)
• and a Route to expose the service to the outside world

Using the template is very easy (and the recommended way to install the dashboard on OpenShift):

• if you don't already have a project, create one

  oc new-project dashboard
  

• create a new application from the template, and override some parameters

  oc new-app -f https://raw.githubusercontent.com/vbehar/openshift-dashboard/master/openshift-template.yml -p APPLICATION_NAME=dashboard,DASHBOARD_TITLE="My OpenShift Dashboard",ROUTE_DNS=dashboard.somedomain.com
  

• if a build does not start, you can start one with

  oc start-build dashboard
  

• Wait a little for the build to finish, the following deployment to succeed, and... that's it! You can now open your browser at the configured route DNS, and you should have a nice dashboard.

• The next step is to give more rights to your service account so that it can see other projects: to do that, we will add the view role to our dashboard service account for all the projects you want to display in the dashboard

  oc policy add-role-to-user view system:serviceaccount:{DASHBOARD_PROJECT}:dashboard -n {NAME_OF_THE_PROJECT_TO_DISPLAY_IN_THE_DASHBOARD}
  

  for example, if the dashboard application is deployed in the dashboard projects, and you want to show projects project1 and project2 in the dashboard:

  oc policy add-role-to-user view system:serviceaccount:dashboard:dashboard -n myproject1
  oc policy add-role-to-user view system:serviceaccount:dashboard:dashboard -n myproject2
  

• The last step is to create applications, by adding an application label to your objects.

Alternatively, you can just use the pre-build Docker image hosted on Docker Hub:

• create a new application from the vbehar:openshift-dashboard image

  oc new-app vbehar/openshift-dashboard
  

• expose the service through a new route

  oc expose service openshift-dashboard --hostname=dashboard.somedomain.com
  

Note that if you choose to deploy without the template, the pod will use the default service account, and you will need to either:

• create a new service account, edit the deployment config to configure the pod to use your new service account, and redeploy
• or give more rights to the default service account (not recommended)

Running locally

If you want to run it on your laptop:

• clone the sources in your GOPATH

  git clone https://github.com/vbehar/openshift-dashboard.git $GOPATH/src/github.com/vbehar/openshift-dashboard
  

• install

  • godep: for using the vendored dependencies

    go get github.com/tools/godep
    

  • gin: for live-reloading the web server

    go get github.com/codegangsta/gin
    

• configure the environment (in dev mode, caching is disabled)

  echo "GO_ENV=dev" > $GOPATH/src/github.com/vbehar/openshift-dashboard/.env
  

• Login with the oc client: it will create a config file that will be used by the dashboard app to connect to the OpenShift API.

  oc login [...]
  

• start the web server on port 8080 (don't forget the --godep option, to use godep to retrieve the vendored dependencies)

  gin --godep --port 8080 run main.go
  

• open http://localhost:8080/

License

Copyright 2015 the original author or authors.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.