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thikade/convert-deploymentconfig-to-deployment.md

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Last active June 12, 2022 05:13
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Convert OpenShift DeploymentConfig to Kubernetes Deployment
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convert-deploymentconfig-to-deployment.md

  1. Change apiVersion from:

    - apiVersion: v1

    (or apiVersion: apps.openshift.io/v1)

    to:

    - apiVersion: apps/v1

  2. Change kind from:

      kind: DeploymentConfig

    to:

      kind: Deployment

  3. Change spec.selectors from:

        selector:
      name: ...

    to:

        selector:
      matchLabels:
        name: ...

  4. Make sure spec.template.spec.containers.image is set, e.g.

            image: registry.access.redhat.com/rhscl/postgresql-${POSTGRESQL_VERSION}-rhel7
        imagePullPolicy: Always

  5. Remove spec.triggers section entirely

  6. Remove fields from spec.strategy:

    • activeDeadlineSeconds
    • resources
    • rollingParams.intervalSeconds
    • rollingParams.timeoutSeconds
    • rollingParams.updatePeriodSeconds

  7. spec.strategy.rollingParams need to be renamed to spec.strategy.rollingUpdate

  8. Update spec.strategy.type from Rolling to RollingUpdate

  9. Remove spec.test entirely

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