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fix: download the correct arch-specific kubectl (#517)

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##### ISSUE TYPE
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 - Bug fix Pull Request

##### SUMMARY
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This fetches the current latest stable kubectl directly from the upstream.

An alternate approach would be to copy from `rancher/kubectl` but that requires explicit versioning.

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Fixes #516
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Dis 2021-09-06 10:27:17 -04:00 committed by GitHub
parent ba05fee2fd
commit cae6127320
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1 changed files with 7 additions and 1 deletions
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build/Dockerfile
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@ -27,7 +27,13 @@ LABEL name="botkube" \
description="BotKube is a messaging bot for monitoring and debugging Kubernetes clusters"
COPY botkube /usr/local/bin/botkube
COPY --from=bitnami/kubectl /opt/bitnami/kubectl/bin/kubectl /usr/local/bin/kubectl
# Download the latest kubectl in the appropriate architecture. Currently handles aarch64 (arm64) and x86_64 (amd64).
RUN MACH=$(uname -m); if [[ ${MACH} == "aarch64" ]]; then ARCH=arm64; \
elif [[ ${MACH} == "x86_64" ]]; then ARCH=amd64; \
elif [[ ${MACH} == "armv7l" ]]; then ARCH=arm; \
else echo "Unsupported arch: ${MACH}"; ARCH=${MACH}; fi; \
wget -O /usr/local/bin/kubectl "https://dl.k8s.io/release/$(wget -qO - https://dl.k8s.io/release/stable.txt)/bin/linux/${ARCH}/kubectl" && \
chmod +x /usr/local/bin/kubectl
# Create Non Privileged user
RUN addgroup --gid 1001 botkube && \