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Contour 0.15.3

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@davecheney davecheney released this 24 Oct 05:01
v0.15.3
60d6b19

Contour 0.15.3 is minor patch release for the Contour 0.15 series.

All Contour users should upgrade to Contour 0.15.3.

Improvements

Envoy keepalive tuning

Contour 0.15.3 addresses an issue where connections between Contour and Envoy could become stuck half-open (one side thinks the connection is open, the other side doesn't) or half-closed (one side closes the connection but the other side never gets the message).

The common theme was the cluster was using an overlay network which suggested the overlay was timing out long running TCP connections. Contour 0.15.3 configures various keep alive mechanisms to detect networking issues between Envoy and Contour.

Fixes #1744. Thanks @youngnick, @bgagnon, and @ravilr.

Upgrading

If you are already running Contour 0.15.2 the upgrade instructions are as follows:

  • Change the Contour image version to v0.15.3.
  • Change the Envoy image version to v1.11.2.

If you are running Contour 0.15.0 or earlier, please see the upgrade documentation.

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