From 0daa2d2c189a234753ea18b184c7e4d3e831f76d Mon Sep 17 00:00:00 2001
From: kerams <kerams@users.noreply.github.com>
Date: Sat, 4 Jan 2020 21:08:39 +0100
Subject: [PATCH] Reduce image size

---
 DockerExporter.csproj | 1 +
 Dockerfile            | 8 ++++----
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/DockerExporter.csproj b/DockerExporter.csproj
index 17b145b..68646c7 100644
--- a/DockerExporter.csproj
+++ b/DockerExporter.csproj
@@ -5,6 +5,7 @@
     <TargetFramework>netcoreapp3.1</TargetFramework>
     <AssemblyName>docker_exporter</AssemblyName>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
+    <PublishTrimmed>true</PublishTrimmed>
     <LangVersion>preview</LangVersion>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/Dockerfile b/Dockerfile
index 556ec4d..b3a9b3c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM mcr.microsoft.com/dotnet/core/sdk:3.1 AS build
+FROM mcr.microsoft.com/dotnet/core/sdk:3.1-alpine AS build
 WORKDIR /app
 
 # Separate layers here to avoid redoing dependencies on code change.
@@ -8,10 +8,10 @@ RUN dotnet restore
 
 # Now the code.
 COPY . .
-RUN dotnet publish -c Release -o out
+RUN dotnet publish -r linux-musl-x64 -c Release -o out
 
-FROM mcr.microsoft.com/dotnet/core/aspnet:3.1 AS runtime
+FROM mcr.microsoft.com/dotnet/core/runtime-deps:3.1-alpine AS runtime
 WORKDIR /app
 COPY --from=build /app/out .
 
-ENTRYPOINT ["dotnet", "docker_exporter.dll"]
\ No newline at end of file
+ENTRYPOINT ["./docker_exporter"]