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clear_a_cache_remotely.md

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How to clear a cache remotely

Run book

To clear a cache on a non-local environment:

  • Ensure nobody is deploying a change (or is going to deploy a change shortly.)

  • Run kubectl get pod against the namespace for the environment you wish to run the seed job in.

  • Copy the name of one of the running hmpps-approved-premises-api pods.

  • Log in to the pod in order to run the script, e.g.

    kubectl exec --stdin --tty {pod name} -- /bin/bash

  • Run the helper script from within the container to trigger the cache clear:

    /app/clear_cache {cache name}

    Where cache name is a value from the CacheType enum in the OpenAPI spec. e.g.

    kubectl exec --stdin --tty {pod name} -- /bin/bash
/app/clear_cache qCodeStaffMembers

  • Check the logs via kubectl logs {pod name} to confirm the cache was cleared.