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plugin-kaniko/plugin.sh
2024-01-12 22:22:45 +01:00

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#!/busybox/sh
set -euo pipefail
export PATH="$PATH:/kaniko/"
REGISTRY=${PLUGIN_REGISTRY:-index.docker.io}
if [ "${PLUGIN_USERNAME:-}" ] || [ "${PLUGIN_PASSWORD:-}" ]; then
DOCKER_AUTH=$(echo -n "${PLUGIN_USERNAME}:${PLUGIN_PASSWORD}" | base64 | tr -d "\n")
cat > /kaniko/.docker/config.json <<DOCKERJSON
{
"auths": {
"${REGISTRY}": {
"auth": "${DOCKER_AUTH}"
}
}
}
DOCKERJSON
fi
if [ "${PLUGIN_JSON_KEY:-}" ];then
echo "${PLUGIN_JSON_KEY}" > /kaniko/gcr.json
export GOOGLE_APPLICATION_CREDENTIALS=/kaniko/gcr.json
fi
DOCKERFILE=${PLUGIN_DOCKERFILE:-Dockerfile}
CONTEXT=${PLUGIN_CONTEXT:-$PWD}
LOG=${PLUGIN_LOG:-info}
EXTRA_OPTS=""
if [[ -n "${PLUGIN_TARGET:-}" ]]; then
TARGET="--target=${PLUGIN_TARGET}"
fi
if [[ "${PLUGIN_SKIP_TLS_VERIFY:-}" == "true" ]]; then
EXTRA_OPTS="--skip-tls-verify=true"
fi
if [[ "${PLUGIN_CACHE:-}" == "true" ]]; then
CACHE="--cache=true"
fi
if [ -n "${PLUGIN_CACHE_REPO:-}" ]; then
CACHE_REPO="--cache-repo=${REGISTRY}/${PLUGIN_CACHE_REPO}"
fi
if [ -n "${PLUGIN_CACHE_TTL:-}" ]; then
CACHE_TTL="--cache-ttl=${PLUGIN_CACHE_TTL}"
fi
if [ -n "${PLUGIN_BUILD_ARGS:-}" ]; then
BUILD_ARGS=$(echo "${PLUGIN_BUILD_ARGS}" | tr ',' '\n' | while read build_arg; do echo "--build-arg=${build_arg}"; done)
fi
if [ -n "${PLUGIN_BUILD_ARGS_FROM_ENV:-}" ]; then
BUILD_ARGS_FROM_ENV=$(echo "${PLUGIN_BUILD_ARGS_FROM_ENV}" | tr ',' '\n' | while read build_arg; do echo "--build-arg ${build_arg}=$(eval "echo \$$build_arg")"; done)
fi
# auto_tag, if set auto_tag: true, auto generate .tags file
# support format Major.Minor.Release or start with `v`
# docker tags: Major, Major.Minor, Major.Minor.Release and latest
if [[ "${PLUGIN_AUTO_TAG:-}" == "true" ]]; then
TAG=$(echo "${DRONE_TAG:-}" |sed 's/^v//g')
part=$(echo "${TAG}" |tr '.' '\n' |wc -l)
# expect number
echo "${TAG}" |grep -E "[a-z-]" &>/dev/null && isNum=1 || isNum=0
if [ -z "${TAG:-}" ]; then
echo "latest" > .tags
elif [ "${isNum}" -eq 1 ] || [ "${part}" -gt 3 ]; then
echo "${TAG},latest" > .tags
else
major=$(echo "${TAG}" |awk -F'.' '{print $1}')
minor=$(echo "${TAG}" |awk -F'.' '{print $2}')
release=$(echo "${TAG}" |awk -F'.' '{print $3}')
major=${major:-0}
minor=${minor:-0}
release=${release:-0}
echo "${major},${major}.${minor},${major}.${minor}.${release},latest" > .tags
fi
fi
if [ -n "${PLUGIN_MIRRORS:-}" ]; then
MIRROR="$(echo "${PLUGIN_MIRRORS}" | tr ',' '\n' | while read mirror; do echo "--registry-mirror=${mirror}"; done)"
fi
if [ -n "${PLUGIN_TAGS:-}" ]; then
DESTINATIONS=$(echo "${PLUGIN_TAGS}" | tr ',' '\n' | while read tag; do echo "--destination=${REGISTRY}/${PLUGIN_REPO}:${tag} "; done)
elif [ -f .tags ]; then
DESTINATIONS=$(tr ',' '\n' < .tags | while read tag; do echo "--destination=${REGISTRY}/${PLUGIN_REPO}:${tag} "; done)
elif [ -n "${PLUGIN_REPO:-}" ]; then
DESTINATIONS="--destination=${REGISTRY}/${PLUGIN_REPO}:latest"
else
DESTINATIONS="--no-push"
# Cache is not valid with --no-push
CACHE=""
fi
/kaniko/executor -v "${LOG}" \
--context="${CONTEXT}" \
--dockerfile="${DOCKERFILE}" \
"${EXTRA_OPTS}" \
"${DESTINATIONS}" \
"${CACHE:-}" \
"${CACHE_TTL:-}" \
"${CACHE_REPO:-}" \
"${TARGET:-}" \
"${BUILD_ARGS:-}" \
"${BUILD_ARGS_FROM_ENV:-}" \
"${MIRROR:-}"