move dockerfile to server repo (#11374)

* move dockerfile to server and simplify

* add harcoded-mmpackage

* build docker image EE

* update jenkins file for branches

build/Dockerfile

@@ -0,0 +1,47 @@
+FROM alpine:3.10
+
+# Some ENV variables
+ENV PATH="/mattermost/bin:${PATH}"
+ARG PUID=2000
+ARG PGID=2000
+ARG MM_PACKAGE="https://releases.mattermost.com/5.12.4/mattermost-5.12.4-linux-amd64.tar.gz"
+
+
+# Install some needed packages
+RUN apk add --no-cache \
+  ca-certificates \
+  curl \
+  libc6-compat \
+  libffi-dev \
+  linux-headers \
+  mailcap \
+  netcat-openbsd \
+  xmlsec-dev \
+  tzdata \
+  && rm -rf /tmp/*
+
+# Get Mattermost
+RUN mkdir -p /mattermost/data /mattermost/plugins /mattermost/client/plugins \
+  && if [ ! -z "$MM_PACKAGE" ]; then curl $MM_PACKAGE | tar -xvz ; \
+  else echo "please set the MM_PACKAGE" ; fi \
+  && addgroup -g ${PGID} mattermost \
+  && adduser -D -u ${PUID} -G mattermost -h /mattermost -D mattermost \
+  && chown -R mattermost:mattermost /mattermost /mattermost/plugins /mattermost/client/plugins
+
+USER mattermost
+
+#Healthcheck to make sure container is ready
+HEALTHCHECK --interval=5m --timeout=3s \
+  CMD curl -f http://localhost:8065/api/v4/system/ping || exit 1
+
+
+# Configure entrypoint and command
+COPY entrypoint.sh /
+ENTRYPOINT ["/entrypoint.sh"]
+WORKDIR /mattermost
+CMD ["mattermost"]
+
+EXPOSE 8065 8067 8074 8075
+
+# Declare volumes for mount point directories
+VOLUME ["/mattermost/data", "/mattermost/logs", "/mattermost/config", "/mattermost/plugins", "/mattermost/client/plugins"]