plugin-kaniko/plugin.sh

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#!/busybox/sh
set -euo pipefail
export PATH=$PATH:/kaniko/
REGISTRY=${PLUGIN_REGISTRY:-docker.io}
if [ "${PLUGIN_USERNAME:-}" ] || [ "${PLUGIN_PASSWORD:-}" ]; then
REGISTRY_AUTH=`echo -n "${PLUGIN_USERNAME}:${PLUGIN_PASSWORD}" | base64 | tr -d "\n"`
cat > /kaniko/.docker/config.json <<EOF
{
"auths": {
"${REGISTRY}": {
"auth": "${REGISTRY_AUTH}"
}
}
}
EOF
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
# Simply auto-tagging
if [[ "${PLUGIN_AUTO_TAG:-}" == "true" ]]; then
if [[ -n "${PLUGIN_TAG_STRIP_V:-}" ]]; then
TAG=$(echo "${CI_COMMIT_TAG:-}" | sed 's/^v//g')
else
TAG="${CI_COMMIT_TAG}"
fi
if [ ! -n "${TAG:-}" ]; then
echo "latest" > .tags
else
echo "${TAG},latest" > .tags
fi
fi
if [ -n "${PLUGIN_TAGS:-}" ]; then
DESTINATIONS=$(echo "${PLUGIN_TAGS}" | tr ',' '\n' | while read tag; do echo "--destination=${REGISTRY}/${PLUGIN_REPO}:${tag} "; done)
elif [ -f .tags ]; then
DESTINATIONS=$(cat .tags| tr ',' '\n' | 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
COMMAND=$(tr -d "\n" <<-EOF
/kaniko/executor -v ${LOG}
--context=${CONTEXT}
--dockerfile=${DOCKERFILE}
${EXTRA_OPTS}
${DESTINATIONS}
${CACHE:-}
${CACHE_TTL:-}
${CACHE_REPO:-}
${TARGET:-}
${BUILD_ARGS:-}
${BUILD_ARGS_FROM_ENV:-}
EOF
)
echo "+ ${COMMAND}"
eval "${COMMAND}"