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#!/bin/bash
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if [ -z "${DRONE_TAG}" ]; then
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echo "DRONE_TAG not defined" >&2
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exit 1
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fi
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set -e -x
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REPO="rancher/k3s"
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# docker can not contain '+' in the tag, so transform '+' to '-'
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DOCKER_TAG=$(echo "${DRONE_TAG}" | sed -e 's/+/-/g')
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# export variables for drone-manifest
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export PLUGIN_TEMPLATE="${REPO}:${DOCKER_TAG}-ARCH"
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export PLUGIN_PLATFORMS="linux/amd64,linux/arm64,linux/arm"
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# push current version manifest tag to docker hub
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PLUGIN_TARGET="${REPO}:${DOCKER_TAG}" drone-manifest
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# do not tag in docker as latest if the github tag contains a '-'
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if echo "${DRONE_TAG}" | grep -q '-'; then
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exit 0
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fi
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# get latest released version from github
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GITHUB_URL=https://github.com/k3s-io/k3s/releases
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VERSION_K3S=$(curl -w '%{url_effective}' -I -L -s -S ${GITHUB_URL}/latest -o /dev/null | sed -e 's|.*/||')
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# function for comparing versions
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version_ge() {
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[ "$1" = "$2" ] || [ "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1" ]
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}
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# do not tag in docker as latest if we are not greater than or equal to the latest github tag
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if ! version_ge "${DRONE_TAG}" "${VERSION_K3S}"; then
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exit 0
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fi
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# push latest manifest tag to docker hub
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PLUGIN_TARGET="${REPO}:latest" drone-manifest
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