The Alpine based images have a nasty problem with DNS failures that tends to surface when running them in Kubernetes. After a fair amount of poking around, it seems like the only reliable fix is to not use Alpine images on Kubernetes until upstream bug fixes in various layers of the software stack, including the Linux kernel propagate to the Alpine releases. For more context, see: https://github.com/gliderlabs/docker-alpine/issues/255 https://github.com/kubernetes/kubernetes/issues/56903 https://www.weave.works/blog/racy-conntrack-and-dns-lookup-timeouts
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