Envoy's CI has a build run called build_image. On a commit to main, docker/push.sh checks if the commit has changed the docker directory. If there are changes, CI builds a new envoyproxy/envoy-build image. The image is pushed to dockerhub under latest and under the commit sha.

After the PR that changes docker has been merged, and the new image gets pushed, a second PR is needed to update envoy_build_sha.sh. In order to pull the new tagged version of the build image, change ENVOY_BUILD_SHA here. Any PRs that depend on this image change will have to merge main after the change to envoy_build_sha.sh has been merged to main.

Envoy health warning for the CentOS 7 build container

The current CentOS 7 build container has no CI integration and generally has older versions of the build tools needed to compile Envoy. So this health warning is to encourage any users of this build image to test Envoy throughly to ensure that it satisfies your requirements.

See further details on the latest status of building Envoy on CentOS 7 here.