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# Source: https://frippery.org/busybox/
# This Dockerfile builds a (32-bit) busybox images which is suitable for
# running many of the integration-cli tests for Docker against a Windows
# daemon. It will not run on nanoserver as that is 64-bit only.
#
# Based on https://github.com/jhowardmsft/busybox
# John Howard (IRC jhowardmsft, Email john.howard@microsoft.com)
#
# To build: docker build -t busybox .
# To publish: Needs someone with publishing rights
ARG WINDOWS_BASE_IMAGE=mcr.microsoft.com/windows/servercore
ARG WINDOWS_BASE_IMAGE_TAG=ltsc2022
ARG BUSYBOX_VERSION=FRP-5007-g82accfc19
# Checksum taken from https://frippery.org/files/busybox/SHA256SUM
ARG BUSYBOX_SHA256SUM=2d6fff0b2de5c034c92990d696c0d85a677b8a75931fa1ec30694fbf1f1df5c9
FROM ${WINDOWS_BASE_IMAGE}:${WINDOWS_BASE_IMAGE_TAG}
RUN mkdir C:\tmp && mkdir C:\bin
ARG BUSYBOX_VERSION
ARG BUSYBOX_SHA256SUM
ADD https://github.com/moby/busybox/releases/download/${BUSYBOX_VERSION}/busybox-w32-${BUSYBOX_VERSION}.exe /bin/busybox.exe
RUN powershell \
if ((Get-FileHash -Path /bin/busybox.exe -Algorithm SHA256).Hash -ne $Env:BUSYBOX_SHA256SUM) { \
Throw \"Checksum validation failed\" \
}
RUN setx /M PATH "C:\bin;%PATH%"
RUN powershell busybox.exe --list ^|%{$nul = cmd /c mklink C:\bin\$_.exe busybox.exe}
CMD ["sh"]
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