Create bootstrap configmap automatically or other global ways

[whitefirer]

Is your feature request related to a problem? Please describe.
The istio-proxy sidecar luanch with a configmap, it's too inconvenient.

Describe the solution you'd like
Maybe we should create it automatically or other global ways.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[whitefirer]

It works well when the namespace has been injected.