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devhub-previewer-setup.md

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Devhub Previewer Image CD Setup

The devhub previewer image is pushed to the Dockerhub registry so that users do not need access the cluster in order to preview devhub content. The CD process for this is fairly simple. It consists of the stage ___ found within the web Jenkinsfile.

This stage triggers the bcdk .pipeline script which processes and applies the devhub-previewer.bc.yaml file.

What happens is the image for the devhub is built that contains the application code plus Node JS. This image is then pushed to Dockerhub under the bcgovimages namespace.

How To Get This Stage Working

There are a few things that need to be sorted in order to push images to external registries. The guideline that was followed is here.

To Summarize you require:

  • create a secret within your tools name space that contains the docker registry secret oc create secret docker-registry dockerhub --docker-server=DOCKER_REGISTRY_SERVER --docker-username=DOCKER_USER --docker-password=DOCKER_PASSWORD --docker-email=DOCKER_EMAIL

    you will need org access to bcgovimages in order for your credentials to have access to push images

  • then the <tools namespace>/builder service account will need a reference to this secret
# builder sa yaml
apiVersion: v1
imagePullSecrets:
- name: builder-dockercfg-dfsdfsd
kind: ServiceAccount
metadata:
  creationTimestamp: 2018-07-17T18:53:23Z
  name: builder
  namespace: devhub-tools
  resourceVersion: "857494024"
  selfLink: /api/v1/namespaces/devhub-tools/serviceaccounts/builder
  uid: ae8f88f3-89f2-11e8-9dd8-0050568379a2
secrets:
- name: builder-token-adsfasd
- name: builder-dockercfg-fsadfasdfasd
- name: #<secret name here>
  • The build config output strategy must reference DockerImage and point to the correct image in Dockerhub in addition the push secret must also be referenced
output:
  to:
    kind: DockerImage
    name: bcgovimages/devhub-previewer
  pushSecret:
    name: #<secret name here>