Vadim Makerov

**List of common tasks a pull request require complete** - [x] Changelog entry is added or the pull request don't alter library's functionality

Set HTTP2 keepalive timeout and interval via env in proxy container

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### What problem are you trying to solve? When linkerd2 is used for proxying HTTP/2 (gRPC) traffic there is maybe issue with tcp sockets dangling. In this case HTTP/2 ping...

Implement configuration environment variables for proxy container via annotations

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Implement configuration environment variables for proxy container via annotations Validation Manual tests Fixes #12289

Proposal: Implement proxy container environment configuration via k8s annotations

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### What problem are you trying to solve? Linkerd2 proxy has many various configuration options via environment variables described here `linkerd/app/src/env.rs`, but current set of annotations do not cover whole...

Add environment variables to configure HTTP/2 keepalive timeout and interval configuration from environment variables

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Add environment variables to configure HTTP/2 keepalive timeout and interval Problem There is no way to configure timeout and interval via environment variables. Solution Configure keepalive timeout and interval for...