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What do you mean exactly by "excluding certain items"?

We did add `-target &lt;urn&gt;` support recently - but that is intended for the opposite scenario - *only* updating specific resources.

If you have more details on this - it may make sense to open a GitHub issue.

We’re using flags for that:

```
function parseFlag(name: string, defaultValue: boolean): boolean {
  const envVar = process.env[name]
  if (envVar === undefined) return defaultValue
  return ['1', 'yes', 'y', 'true'].includes(envVar)
}

export const allowDatadog = parseFlag('ALLOW_DATADOG', true)
```

And then later:

```
if (allowDatadog) { ... }
```

And then you can run:

```
ALLOW_DATADOG=0 pulumi up
```