How do I instruct Pulumi to invoke my custom Typescript function when pulumi up or pulumi destroy is invoked from command-line?
I tried invoking my function from the main code block, but it is getting invoked multiple times on pulumi up.
Further, there are some commands I only want to invoke for up and others that should only be invoked for destroy.
You can use pulumi.runtime.isDryRun() to run code or functions only during update. Pulumi doesn't currently expose a way to hook into lifecycle events, but this is on the roadmap at https://github.com/pulumi/pulumi/issues/1691.