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Update kubectl and remove nsswitch.conf in flux-cli image #3324

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merged 1 commit into from Nov 17, 2022
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Update kubectl and remove nsswitch.conf in flux-cli image #3324

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6 changes: 1 addition & 5 deletions Dockerfile
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Expand Up @@ -3,18 +3,14 @@ FROM alpine:3.16 as builder
RUN apk add --no-cache ca-certificates curl

ARG ARCH=linux/amd64
ARG KUBECTL_VER=1.25.3
ARG KUBECTL_VER=1.25.4

RUN curl -sL https://storage.googleapis.com/kubernetes-release/release/v${KUBECTL_VER}/bin/${ARCH}/kubectl \
-o /usr/local/bin/kubectl && chmod +x /usr/local/bin/kubectl && \
kubectl version --client=true

FROM alpine:3.16 as flux-cli

# Create minimal nsswitch.conf file to prioritize the usage of /etc/hosts over DNS queries.
# https://github.com/gliderlabs/docker-alpine/issues/367#issuecomment-354316460
RUN [ ! -e /etc/nsswitch.conf ] && echo 'hosts: files dns' > /etc/nsswitch.conf

RUN apk add --no-cache ca-certificates

COPY --from=builder /usr/local/bin/kubectl /usr/local/bin/
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