Initial commit

Dockerfile

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+FROM alpine:3.10.3
+COPY docker-entrypoint.sh /usr/local/bin/
+RUN chmod +x /usr/local/bin/docker-entrypoint.sh
+RUN apk add --no-cache curl=7.66.0-r0
+ARG KUBERNETES_VERSION=unknown
+ENV KUBERNETES_VERSION $KUBERNETES_VERSION
+RUN cd /usr/local/bin/ && wget https://storage.googleapis.com/kubernetes-release/release/v${KUBERNETES_VERSION}/bin/linux/amd64/kubectl && chmod +x kubectl
+ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]
+CMD ["kubectl"]

docker-entrypoint.sh

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+#!/bin/sh
+set -e
+
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
+	set -- kubectl "$@"
+fi
+
+exec "$@"

hooks/build

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+#!/bin/sh
+docker build --build-arg KUBERNETES_VERSION=$SOURCE_BRANCH -f $DOCKERFILE_PATH -t $IMAGE_NAME .