0d24b05434
Currently, some of the E2E test images have Windows support, and one of the goals is for most of them to have Windows support. For that, the Image Builder is currently building those Windows container images using a few Windows Server nodes (for 1809, 1903, 1909) with Remote Docker enabled which are hosted on an azure subscription dedicated for CNCF. With this, the Windows nodes dependency is removed entirely, as the images can be also built with docker buildx. One additional benefit to this is that adding new supported Windows OS versions to the E2E test images manifest lists becomes a lot easier (we wouldn't have to create a new Windows Server node that matches that new OS version, assign DNS name, update certificates, etc.), and it also becomes easier for other people to build their own E2E windows test images. However, some dependencies are still required to run on a Windows machine. To solve this, we can just pull helper images: e2eteam/powershell-helper:6.2.7 and e2eteam/busybox-helper:1.29.0. Their Dockerfiles and a Makefile for them has been included in this commit. If any change is required to them, then a new image will be built and tagged under a different version, but they are pretty straight-forward and shouldn't require changes. However, there is a small concern when it comes to the build time: Windows servercore images are very large (for example, mcr.microsoft.com/windows/servercore:ltsc2019 is 4.99GB uncompressed, and about ~2 GB compressed - those images are already cached on the Windows Server builder nodes, so this isn't an issue there), and we currently support 1809, 1903, and 1909 (soon to add 2004). This can lead to build times that are too big. We have changed the base image to nanoserver (uncompressed size: 250MB), but some images still require some DLLs or some other dependencies that can be fetched from a servercore image. A separate job has been defined that would build a scratch windows-servercore-cache image monthly, and then we can just get those dependencies from this cache, which will be very small. This would be preferred, as the Windows images update periodically, and those dependencies could be updated as well.
78 lines
2.7 KiB
Plaintext
78 lines
2.7 KiB
Plaintext
# Copyright 2020 The Kubernetes Authors.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
ARG BASEIMAGE
|
|
ARG REGISTRY
|
|
ARG OS_VERSION
|
|
|
|
# We're using a Linux image to unpack the archives, then we're copying them over to Windows.
|
|
FROM --platform=linux/amd64 alpine:3.6 as prep
|
|
|
|
ADD https://github.com/coredns/coredns/releases/download/v1.5.0/coredns_1.5.0_windows_amd64.tgz /coredns.tgz
|
|
ADD https://iperf.fr/download/windows/iperf-2.0.9-win64.zip /iperf.zip
|
|
|
|
# we're also creating an empty /uploads folder, which we're copying over to Windows because
|
|
# we can't RUN commands on a Windows image.
|
|
RUN tar -xzvf /coredns.tgz &&\
|
|
unzip iperf.zip &&\
|
|
mv iperf-2.0.9-win64 iperf &&\
|
|
mkdir /uploads
|
|
|
|
FROM e2eteam/busybox-helper:1.29.0 as busybox-helper
|
|
FROM --platform=linux/amd64 $REGISTRY/windows-servercore-cache:1.0-linux-amd64-$OS_VERSION as servercore-helper
|
|
FROM $BASEIMAGE
|
|
|
|
# from dnsutils image
|
|
# install necessary packages:
|
|
# - bind-tools: contains dig, which can used in DNS tests.
|
|
# - CoreDNS: used in some DNS tests.
|
|
# from hostexec image
|
|
# installed necessary packages:
|
|
# - curl, nc: used by a lot of e2e tests (inherited from BASEIMAGE)
|
|
# from iperf image
|
|
# install necessary packages: iperf
|
|
COPY --from=busybox-helper /dig /dig
|
|
COPY --from=servercore-helper /Windows/System32/netapi32.dll /Windows/System32/netapi32.dll
|
|
COPY --from=prep /coredns.exe /coredns.exe
|
|
COPY --from=prep /iperf /iperf
|
|
|
|
# NOTE(claudiub): docker buildx sets the PATH env variable to a Linux-like PATH, which is not desirable.
|
|
ENV PATH="C:\dig\;C:\bin\;C:\curl\;C:\Windows\system32;C:\Windows;C:\Program Files\PowerShell;"
|
|
|
|
# PORT 80 needed by: test-webserver
|
|
# PORT 8080 needed by: netexec, nettest
|
|
# PORT 8081 needed by: netexec
|
|
# PORT 9376 needed by: serve-hostname
|
|
EXPOSE 80 8080 8081 9376
|
|
|
|
# from netexec
|
|
COPY --from=prep /uploads /uploads
|
|
|
|
# from porter
|
|
ADD porter/localhost.crt localhost.crt
|
|
ADD porter/localhost.key localhost.key
|
|
|
|
# from mounttest
|
|
ADD mounttest/filePermissions.ps1 filePermissions.ps1
|
|
|
|
ADD agnhost /agnhost
|
|
|
|
# needed for the entrypoint-tester related tests. Some of the entrypoint-tester related tests
|
|
# overrides this image's entrypoint with agnhost-2 binary, and will verify that the correct
|
|
# entrypoint is used by the containers.
|
|
ADD agnhost /agnhost-2
|
|
|
|
ENTRYPOINT ["/agnhost"]
|
|
CMD ["pause"]
|