Chapter 11. Configuring the user agent

• <command> = oc
• <version> = The client version. For example, v4.3.0. Requests made against the Kubernetes API at /api receive the Kubernetes version, while requests made against the OpenShift Container Platform API at /oapi receive the OpenShift Container Platform version (as specified by oc version)
• <platform> = linux
• <architecture> = amd64
• <client> = openshift, or kubernetes depending on if the request is made against the Kubernetes API at /api, or the OpenShift Container Platform API at /oapi
• <git_commit> = The Git commit of the client version (for example, f034127)

Procedure

• Modify the master configuration file to include the user agent configuration. For example, the following user agent denies the Kubernetes 1.2 client binary, OKD 1.1.3 binary, and the POST and PUT httpVerbs:

  policyConfig:
    userAgentMatchingConfig:
      defaultRejectionMessage: "Your client is too old.  Go to https://example.org to update it."
      deniedClients:
      - regex: '\w+/v(?:(?:1\.1\.1)|(?:1\.0\.1)) \(.+/.+\) openshift/\w{7}'
      - regex: '\w+/v(?:1\.1\.3) \(.+/.+\) openshift/\w{7}'
        httpVerbs:
        - POST
        - PUT
      - regex: '\w+/v1\.2\.0 \(.+/.+\) kubernetes/\w{7}'
        httpVerbs:
        - POST
        - PUT
      requiredClients: null

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  The following example denies clients that do not exactly match an expected client:

  policyConfig:
    userAgentMatchingConfig:
      defaultRejectionMessage: "Your client is too old.  Go to https://example.org to update it."
      deniedClients: []
      requiredClients:
      - regex: '\w+/v1\.1\.3 \(.+/.+\) openshift/\w{7}'
      - regex: '\w+/v1\.2\.0 \(.+/.+\) kubernetes/\w{7}'
        httpVerbs:
        - POST
        - PUT

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