add dnsmasq

dnsmasq/Dockerfile

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+FROM alpine:3.10
+
+MAINTAINER Newnius <newnius.cn@gmail.com>
+
+RUN apk add --no-cache dnsmasq
+
+CMD ["/usr/sbin/dnsmasq", "-k"]

dnsmasq/README.md

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+# Deploy dnsmasq in docker
+
+## Deploy
+
+#### Run as Server
+
+```bash
+docker run \
+	--name dnsmasq \
+	-d \
+	--restart always \
+	--cap-add=NET_ADMIN \
+	--publish 53:53/udp \
+	--mount type=bind,src=/etc/localtime,dst=/etc/localtime,readonly \
+	--mount type=bind,src=/data/dnsmasq/,dst=/etc/dnsmasq.d/ \
+	newnius/dnsmasq
+```
+