Update Dockerfile to build webdis with SSL support

Two binaries are built and packaged:
* /usr/local/bin/webdis -- still without SSL and does not depend on
  OpenSSL
* /usr/local/bin/webdis-ssl -- supports SSL, depends on OpenSSL but has
  to be used with the webdis image as a base image or in a container
  injecting the webdis config and certs.

Dockerfile

@@ -1,19 +1,18 @@
 FROM alpine:3.14.2 AS stage
 LABEL maintainer="Nicolas Favre-Felix <n.favrefelix@gmail.com>"
 
-RUN apk update && apk add wget make gcc libevent-dev msgpack-c-dev musl-dev bsd-compat-headers jq
+RUN apk update && apk add wget make gcc libevent-dev msgpack-c-dev musl-dev openssl-dev bsd-compat-headers jq
 RUN wget -q https://api.github.com/repos/nicolasff/webdis/tags -O /dev/stdout | jq '.[] | .name' | head -1  | sed 's/"//g' > latest
 RUN wget https://github.com/nicolasff/webdis/archive/$(cat latest).tar.gz -O webdis-latest.tar.gz
 RUN tar -xvzf webdis-latest.tar.gz
-RUN cd webdis-$(cat latest) && make && make install && cd ..
+RUN cd webdis-$(cat latest) && make && make install && make clean && make SSL=1 && cp webdis /usr/local/bin/webdis-ssl && cd ..
 RUN sed -i -e 's/"daemonize":.*true,/"daemonize": false,/g' /etc/webdis.prod.json
 
 # main image
 FROM alpine:3.14.2
 # Required dependencies, with versions fixing known security vulnerabilities
-# RUN apk update && apk add libevent msgpack-c 'redis>5.1' 'apk-tools>2.12.6-r0'
+RUN apk update && apk add libevent msgpack-c 'redis>6.2.6' 'apk-tools>2.12.6-r0' 'openssl>=1.1.1l-r0' 'libssl1.1>=1.1.1l-r0' 'libcrypto1.1>=1.1.1l-r0'
-RUN apk update && apk add libevent msgpack-c 'redis>6.2.6' 'apk-tools>2.12.6-r0'
+COPY --from=stage /usr/local/bin/webdis /usr/local/bin/webdis-ssl /usr/local/bin/
-COPY --from=stage /usr/local/bin/webdis /usr/local/bin/
 COPY --from=stage /etc/webdis.prod.json /etc/webdis.prod.json
 RUN echo "daemonize yes" >> /etc/redis.conf
 CMD /usr/bin/redis-server /etc/redis.conf && /usr/local/bin/webdis /etc/webdis.prod.json