enable 1903 build

.drone.yml

@@ -77,6 +77,44 @@ trigger:
 depends_on:
 - testing
 
+---
+kind: pipeline
+type: ssh
+name: windows-1903-amd64-docker
+
+platform:
+  os: windows
+
+server:
+  host: windows.1903.amd64.plugins.drone.ci
+  password:
+    from_secret: windows_password
+  user:
+    from_secret: windows_username
+
+steps:
+- name: build
+  commands:
+  # TODO use the new DRONE_SEMVER_SHORT environment variables to
+  # publish docker images for tag events.
+  - go build -o release/windows/amd64/drone-docker.exe
+  - docker login -u $env:USERNAME -p $env:PASSWORD
+  - docker build -f docker/Dockerfile.windows.1903 -t plugins/docker:windows-1903-amd64 .
+  - docker push plugins/docker:windows-1903-amd64
+  environment:
+    CGO_ENABLED: "0"
+    USERNAME:
+      from_secret: docker_username
+    PASSWORD:
+      from_secret: docker_password
+
+trigger:
+  event:
+  - push
+
+depends_on:
+- testing
+
 ---
 kind: pipeline
 name: linux-amd64-docker
@@ -365,6 +403,7 @@ trigger:
 
 depends_on:
 - windows-1809-amd64-docker
+- windows-1903-amd64-docker
 - linux-amd64-docker
 - linux-arm64-docker
 - linux-arm-docker

docker/docker/Dockerfile.windows.1903

@@ -0,0 +1,27 @@
+# escape=`
+FROM mcr.microsoft.com/windows/servercore:1903 as download
+
+SHELL ["powershell", "-Command", "$ErrorActionPreference = 'Stop'; $ProgressPreference = 'SilentlyContinue';"]
+
+ENV DOCKER_VERSION 18.09.1
+
+RUN Invoke-WebRequest 'http://constexpr.org/innoextract/files/innoextract-1.6-windows.zip' -OutFile 'innoextract.zip' -UseBasicParsing ; `
+    Expand-Archive innoextract.zip -DestinationPath C:\ ; `
+    Remove-Item -Path innoextract.zip
+
+RUN [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 ; `
+    Invoke-WebRequest $('https://github.com/docker/toolbox/releases/download/v{0}/DockerToolbox-{0}.exe' -f $env:DOCKER_VERSION) -OutFile 'dockertoolbox.exe' -UseBasicParsing
+RUN /innoextract.exe dockertoolbox.exe
+
+FROM mcr.microsoft.com/windows/nanoserver:1903
+USER ContainerAdministrator
+
+LABEL maintainer="Drone.IO Community <drone-dev@googlegroups.com>" `
+  org.label-schema.name="Drone Docker" `
+  org.label-schema.vendor="Drone.IO Community" `
+  org.label-schema.schema-version="1.0"
+
+COPY --from=download /windows/system32/netapi32.dll /windows/system32/netapi32.dll
+COPY --from=download /app/docker.exe C:/bin/docker.exe
+ADD release/windows/amd64/drone-docker.exe C:/bin/drone-docker.exe
+ENTRYPOINT [ "C:\\bin\\drone-docker.exe" ]