Adds support for running WebRisk Proxy Server as a container

Dockerfile

@@ -0,0 +1,34 @@
+FROM golang:alpine
+
+
+WORKDIR /go/src/webrisk
+
+
+RUN apk add --update --no-cache git
+
+
+# Gets the Proxy server binary
+RUN go get github.com/google/webrisk/cmd/wrserver
+
+
+# If you want to run a container with a different API KEY you can just
+# pass this variable as `docker run` argument:
+# docker run -e WR_API_KEY=XXXXXXXXXXXXXXXXXXXXXXXX
+ARG WR_API_KEY
+
+
+# If you want to change the Proxy server port you can pass this
+# variable as `docker run` argument:
+# docker run -e WR_PROXY_PORT=5000
+ARG WR_PROXY_PORT
+
+
+# In case no WR_PROXY_PORT is informed, default value is 8080
+ENV WR_PROXY_PORT=8080
+
+
+# Runs the WebRisk Proxy Server
+CMD /go/bin/wrserver \
+        -apikey=${WR_API_KEY} \
+        -srvaddr=0.0.0.0:${WR_PROXY_PORT} \
+        -db=/tmp/webrisk.db

README.md

@@ -71,6 +71,14 @@ To use the local proxy server to check a URL, send a POST request to `127.0.0.1:
           ]
         }
 	```
+4. Or, if you would like to run the Proxy server as a container you can do as follows:
+```bash
+$> docker build --tag webrisk:local .
+```
+Once the image is built locally, you can run it:
+```bash
+$> docker run -it --rm -p 8080:8080 -e WR_API_KEY=XXXXXXXXXXX --name webrisk webrisk:local
+```
 
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