bladerunner/packer/install-packer.sh

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#!/usr/bin/env bash
if [[ "${BASH_SOURCE[0]}" = "${0}" ]]
then
set -euxo pipefail
RUN_MAIN=yes
else
RUN_MAIN=no
fi
PACKER_VERSION=1.8.6
INSTALL_DIR=/usr/local/bin
ARCH=amd64
PACKER_FILE=packer_${PACKER_VERSION}_linux_${ARCH}
UPSTREAM="https://github.com/mkaczanowski/packer-builder-arm"
UPGRADE="false"
BUILD_DIR="$(pwd)/build"
FORCE_DEPENDENCY_INSTALL="${FORCE_DEPENDENCY_INSTALL:-no}"
preflight () {
if [ -z "$(command -v git)" -o "${FORCE_DEPENDENCY_INSTALL}" = "yes" ]
then
sudo apt-get update && sudo apt-get -y install git unzip qemu-user-static e2fsprogs dosfstools libarchive-tools xz-utils jq
fi
mkdir -p ${BUILD_DIR}
pushd ${BUILD_DIR}
}
install_packer () {
if [ -x ${INSTALL_DIR}/packer ]
then
return 0
fi
curl -LO https://releases.hashicorp.com/packer/${PACKER_VERSION}/${PACKER_FILE}.zip
unzip ${PACKER_FILE}
sudo mv packer ${INSTALL_DIR}/
rm ${PACKER_FILE}.zip
}
install_packer_builder_arm () {
if [ -x "${INSTALL_DIR}/packer-builder-arm" -a -z "${UPGRADE}" ]
then
return 0
fi
if [ ! -d "${UPSTREAM##*/}" ]
then
git clone "${UPSTREAM}"
fi
pushd "${UPSTREAM##*/}"
go mod download
go build
sudo mv packer-builder-arm ${INSTALL_DIR}/
popd
}
cleanup () {
popd
}
main () {
preflight
install_packer
install_packer_builder_arm
cleanup
}
if [[ "${RUN_MAIN}" = "yes" ]]
then
main
fi