Support Ext Proc that executes per Backend

[arkodg]

Description:

Describe the desired behavior, what scenario it enables and how it would be used.

Ext Proc https://gateway.envoyproxy.io/docs/api/extension_types/#extproc can be enhanced with a phase/stage field so it can be executed in the Route / Backend or All phases/stages

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Any extra documentation required to understand the issue.

[arkodg]

cc @yuzisun @mathetake @dprotaso

[shiavm006]

Description:

Describe the desired behavior, what scenario it enables and how it would be used.

Ext Proc https://gateway.envoyproxy.io/docs/api/extension_types/#extproc can be enhanced with a phase/stage field so it can be executed in the Route / Backend or All phases/stages

[optional Relevant Links:]

Any extra documentation required to understand the issue.

i saw this issue and have idea about it can u assign me to solve this issue

[zirain]

/assign shiavm006

Thanks for taking this.

[shiavm006]

i have raised a pr can check on it and give ur suggestions ?

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had activity in the last 30 days.