From 8ec0010f362801445e31b3b31de954acdd3a6bec Mon Sep 17 00:00:00 2001
From: Stefan Steinert <ststefa@heldenzeit.net>
Date: Fri, 11 Mar 2022 13:18:07 +0100
Subject: [PATCH] Added multi-stage build, bumped alpine and libxml versions
 (#31)

---
 Dockerfile | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 6283842..523eba8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
-FROM golang:1.17.3-alpine3.14
+FROM golang:1.17.3-alpine3.15 AS build
 
 ENV LIBVIRT_EXPORTER_PATH=/libvirt-exporter
-ENV LIBXML2_VER=2.9.8
+ENV LIBXML2_VER=2.9.12
 
 RUN apk add ca-certificates g++ git libnl-dev linux-headers make libvirt-dev libvirt && \
     wget ftp://xmlsoft.org/libxml2/libxml2-${LIBXML2_VER}.tar.gz -P /tmp && \
@@ -16,4 +16,9 @@ COPY . .
 
 RUN go build -mod vendor
 
-ENTRYPOINT [ "./libvirt-exporter" ]
+FROM alpine:3.15
+RUN apk add ca-certificates libvirt
+COPY --from=build $LIBVIRT_EXPORTER_PATH/libvirt-exporter /
+EXPOSE 9177
+
+ENTRYPOINT [ "/libvirt-exporter" ]