Merge pull request #739 from ksurl/docker-alpine

chore: switch to alpine based image

docker/Dockerfile

@@ -1,13 +1,18 @@
 # syntax=docker/dockerfile:1
-FROM node:16
-WORKDIR /automatisch
 
-RUN apt-get update && apt-get install -y dos2unix
+FROM alpine
 
 COPY ./entrypoint.sh /entrypoint.sh
-RUN dos2unix /entrypoint.sh && apt-get --purge remove -y dos2unix && rm -rf /var/lib/apt/lists/*
 
-RUN yarn global add @automatisch/cli@0.2.0
+RUN apk add --no-cache dos2unix && \
+    dos2unix /entrypoint.sh
+
+FROM node:16-alpine
+WORKDIR /automatisch
+
+COPY --from=0 /entrypoint.sh /entrypoint.sh
+
+RUN apk add --no-cache openssl && yarn global add @automatisch/cli@0.2.0
 
 EXPOSE 3000
 ENTRYPOINT ["sh", "/entrypoint.sh"]