Use multi-stage build on Windows

Dockerfile

@@ -1,7 +0,0 @@
-FROM microsoft/nanoserver
-
-COPY tmp /
-ENV PORT 8000
-EXPOSE 8000
-
-CMD ["\\http.exe"]

Dockerfile.build

@@ -1,6 +0,0 @@
-FROM golang:nanoserver
-
-COPY . /code
-WORKDIR /code
-
-RUN go build http.go

Dockerfile.windows

@@ -0,0 +1,14 @@
+FROM golang:nanoserver
+
+COPY . /code
+WORKDIR /code
+
+RUN go build http.go
+
+FROM microsoft/nanoserver
+
+COPY --from=0 /code/http.exe /http.exe
+
+EXPOSE 8080
+
+CMD ["\\http.exe"]

appveyor.yml

@@ -4,9 +4,6 @@ environment:
     secure: LjNiW/ZWrfVIJn3Mc9foeg==
   DOCKER_PASS:
     secure: 4gsl5WiqIztEWhL5fuhp9X0qT/mKg9fYzKYUUPf5WStIuNddv0fvIKGmvvyuFzzd
-install:
-  - choco install -y docker -pre
-  - docker version
 
 build_script:
   - ps: .\build.ps1

build.ps1

@@ -3,22 +3,16 @@ $files = ""
 Write-Host Starting build
 
 Write-Host Updating base images
-docker pull microsoft/windowsservercore
 docker pull microsoft/nanoserver
 
-Write-Host Removing old images
-$ErrorActionPreference = 'SilentlyContinue';
-docker rmi $(docker images --no-trunc --format '{{.Repository}}:{{.Tag}}' | sls -notmatch -pattern '(REPOSITORY|microsoft\/(windowsservercore|nanoserver))')
-$ErrorActionPreference = 'Stop';
-Write-Host Prune system
-docker system prune -f
+Write-Host Updating Docker engine to master
+Stop-Service docker
+$wc = New-Object net.webclient
+$wc.Downloadfile("https://master.dockerproject.org/windows/amd64/dockerd.exe", "$env:ProgramFiles\docker\dockerd.exe")
+$wc.Downloadfile("https://master.dockerproject.org/windows/amd64/docker.exe", "$env:ProgramFiles\docker\docker.exe")
+Start-Service docker
+docker version
 
-docker build -t httpbuild -f Dockerfile.build .
-docker create --name httpbuild httpbuild
-if (!(Test-Path tmp)) {
-  mkdir tmp
-}
-docker cp httpbuild:/code/http.exe tmp
-docker build -t whoami .
+docker build -t whoami -f Dockerfile.windows .
 
 docker images

test.ps1

@@ -6,11 +6,10 @@ docker rm -f whoamitest
 
 $ErrorActionPreference = 'Stop';
 Write-Host Starting container
-docker run --name whoamitest -p 8000:8000 -d whoami
-$ip=$(docker inspect -f '{{ .NetworkSettings.Networks.nat.IPAddress  }}' whoamitest)
+docker run --name whoamitest -p 8080:8080 -d whoami
 Start-Sleep 15
 Write-Host Testing from another container
-docker run --rm microsoft/nanoserver powershell -command invoke-webrequest -usebasicparsing http://$($ip):8000
+docker run --rm microsoft/nanoserver powershell -command invoke-webrequest -usebasicparsing http://whoamitest:8080
 
 $ErrorActionPreference = 'SilentlyContinue';
 docker kill whoamitest