[jira] [Created] (FLINK-17033) Upgrade OpenJDK docker image for Kubernetes

["Canbin Zheng (Jira)" <ji...@apache.org>]

Canbin Zheng created FLINK-17033:
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             Summary: Upgrade OpenJDK docker image for Kubernetes
                 Key: FLINK-17033
                 URL: https://issues.apache.org/jira/browse/FLINK-17033
             Project: Flink
          Issue Type: Improvement
          Components: Deployment / Kubernetes
            Reporter: Canbin Zheng
             Fix For: 1.11.0


The current docker image {{openjdk:8-jre-alpine}} used by Kubernetes has many problems, here is some of them:
 # There is no official support for this image since the commit [https://github.com/docker-library/openjdk/commit/3eb0351b208d739fac35345c85e3c6237c2114ec#diff-f95ffa3d1377774732c33f7b8368e099]
 # [DNS-lookup-5s-delay|https://k8s.imroc.io/troubleshooting/cases/dns-lookup-5s-delay]
 # [DNS resolver does not read /etc/hosts|https://github.com/golang/go/issues/22846]

Therefore, this ticket proposes to investigate an alternative official JDK docker image; I think it's a good choice to use {{openjdk:8-jre-slim}}(184MB) instead, the reasons are as follows:
 # It has official support from openjdk: [https://github.com/docker-library/docs/blob/master/openjdk/README.md#supported-tags-and-respective-dockerfile-links]
 # It is based on debian and does not have many problems such as DNS lookup delay.
 # It's much smaller in size than other official docker images.



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