22584e7e37
This commit changes two things about our resource model: * Stop performing Pulumi Engine-side diffing of resource state. Instead, we defer to the resource plugins themselves to determine whether a change was made and, if so, the extent of it. This manifests as a simple change to the Diff function; it is done in a backwards compatible way so that we continue with legacy diffing for existing resource provider plugins. * Add a Read RPC method for resource providers. It simply takes a resource's ID and URN, plus an optional bag of further qualifying state, and it returns the current property state as read back from the actual live environment. Note that the optional bag of state must at least include enough additional properties for resources wherein the ID is insufficient for the provider to perform a lookup. It may, however, include the full bag of prior state, for instance in the case of a refresh operation. This is part of pulumi/pulumi#1108. |
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| README.md | ||