feat: 增加dns dockerFile 测试

baseimg/dns/Dockerfile

+FROM 192.168.4.36/baseimg/jdk8
+MAINTAINER ag "xiaoguang.xu@quantgroup.cn"
+
+#安装必要工具
+RUN apt-get install -y bind-tools \
+		&& apt-get install -y ca-certificates \
+		&& apt-get install -y openssl \
+		&& apt-get install -y update-ca-certificates \
+
+
+# only need ca-certificates & openssl if want to use https_google
+#RUN apk --update add bind-tools ca-certificates openssl && update-ca-certificates && rm -rf /var/cache/apk/*
+
+ADD coredns /coredns
+
+EXPOSE 53 53/udp
+ENTRYPOINT ["/coredns"]
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