use alpine as the docker distribution

Author: bsergean

Dockerfile

@@ -1 +1 @@
-docker/Dockerfile.centos
+docker/Dockerfile.alpine

docker/Dockerfile.alpine

@@ -1,6 +1,6 @@
 FROM alpine:3.11 as build
 
-RUN apk add --no-cache gcc g++ musl-dev linux-headers cmake openssl-dev
+RUN apk add --no-cache gcc g++ musl-dev linux-headers cmake mbedtls-dev
 RUN apk add --no-cache make
 RUN apk add --no-cache zlib-dev
 
@@ -14,14 +14,12 @@ COPY --chown=app:app . /opt
 WORKDIR /opt
 
 USER app
-RUN [ "make", "ws_install" ]
+RUN [ "make", "ws_mbedtls_install" ]
 RUN [ "rm", "-rf", "build" ]
 
 FROM alpine:3.11 as runtime
 
-RUN apk add --no-cache libstdc++
-RUN apk add --no-cache strace
-RUN apk add --no-cache gdb
+RUN apk add --no-cache libstdc++ mbedtls
 
 RUN addgroup -S app && adduser -S -G app app
 COPY --chown=app:app --from=build /usr/local/bin/ws /usr/local/bin/ws