#175 Using multi-stage build to create prom2teams image

CHANGELOG.md

@@ -3,6 +3,8 @@ All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/) and [Keep a changelog](https://github.com/olivierlacan/keep-a-changelog).
 
 ## [Unreleased](https://github.com/idealista/prom2teams/tree/develop)
+## Changed
+- *[#175](https://github.com/idealista/prom2teams/issues/175) Building docker image using multi-stage build feature* @dortegau
 
 ## Fixed
 - *[#158](https://github.com/idealista/prom2teams/issues/158) Fixing Travis Badge (pointing to master branch) and reordering TOC* @dortegau

Dockerfile

@@ -1,32 +1,29 @@
-FROM python:3.5-alpine
-
-LABEL maintainer="labs@idealista.com"
-
-EXPOSE 8089
-
-RUN apk add gcc libc-dev linux-headers --no-cache
-
-WORKDIR /opt/prom2teams
-
-COPY ./docker/ \
-        LICENSE \
+FROM python:3.5-alpine AS builder
+WORKDIR /prom2teams
+COPY LICENSE \
         MANIFEST.in \
         README.md \
         requirements.txt \
         setup.py \
         ./
+COPY prom2teams/ prom2teams
+COPY bin/ bin
+RUN apk add gcc libc-dev linux-headers --no-cache \
+        && python setup.py bdist_wheel
 
-COPY ./bin bin
-COPY ./prom2teams prom2teams
-
-RUN python setup.py install
-
+FROM python:3.5-alpine
+LABEL maintainer="labs@idealista.com"
+EXPOSE 8089
+WORKDIR /opt/prom2teams
+COPY docker/rootfs .
+COPY --from=builder /prom2teams/dist .
+RUN apk add gcc libc-dev linux-headers --no-cache \
+        && pip install prom2teams*.whl
 ENV PROM2TEAMS_PORT="8089" \
         PROM2TEAMS_HOST="0.0.0.0" \
         PROM2TEAMS_LOGLEVEL="INFO" \
         PROM2TEAMS_CONNECTOR="" \
         PROM2TEAMS_GROUP_ALERTS_BY="" \
         APP_CONFIG_FILE="/opt/prom2teams/config.ini" \
         PROM2TEAMS_PROMETHEUS_METRICS="true"
-
 ENTRYPOINT ["sh", "prom2teams_start.sh"]