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Dedicated Invokers

Actions run on any invokers in OpenWhisk. But users may want to run their actions on a certain invoker(s) for some reason such as IP-based ACL. This is to provide dedicated invokers for a namespace. Operators can configure a dedicated namespace for invokers and all activations from the namespace will be delivered to the dedicated invokers only.

Tagging Invokers

Operators can configure any tags for invokers.

invoker0 ansible_host=${INVOKER01} tags="['dedicated']" dedicatedNamespaces="['namespace1']"
invoker1 ansible_host=${INVOKER02} tags="['dedicated']" dedicatedNamespaces="['namespace2']"

Users can add the following annotations to their actions.

wsk action update params tests/dat/actions/params.js -i -a invoker-resources '["dedicated"]'

So this feature is based on the tag-based-scheduling. The dedicatedNamespaces field is used to make sure the invokers are not used by other than allowed namespaces and users can decide whether to run their actions on dedicated invokers using the dedicated tag.