export_binary_releases.sh

#!/usr/bin/env bash

set -Eeuo pipefail
trap cleanup SIGINT SIGTERM ERR EXIT

script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd -P)

# global stuff
# shellcheck source="$script_dir/.envrc"
source "$script_dir/.envrc"
# shellcheck source="$script_dir/lib.sh"
source "$script_dir/lib.sh"

cleanup() {
  trap - SIGINT SIGTERM ERR EXIT
  # script cleanup here
}

usage() {
  cat << EOF # remove the space between << and EOF, this is due to web plugin issue
Usage: $(basename "${BASH_SOURCE[0]}") [-h] [-v] -d deployment_name

Export binary releases to speed up deployment

Available options:

-h, --help        Print this help and exit
-v, --verbose     Print script debug info
-d, --deployment  The deployment to export binary releases from
EOF
  exit
}

parse_params() {
  # default values of variables set from params
  flag=0
  deployment_used=''

  while :; do
    case "${1-}" in
    -h | --help) usage;;
    -v | --verbose) set -x ;;
    --no-color) NO_COLOR=1 ;;
    -f | --flag) flag=1 ;; # example flag
    -d | --deployment) # example named parameter
      deployment_used="${2-}"
      shift
      ;;
    -?*) die "Unknown option: $1" ;;
    *) break ;;
    esac
    shift
  done

  # check required params and arguments
  [[ -z "${deployment_used-}" ]] && die "Missing required parameter: deployment"

  return 0
}

parse_params "$@"
setup_colors

# script logic here
releases_path="${script_dir}/binary-releases/${deployment_used}"

mkdir -p "${releases_path}"

bosh -e "$BOSH_ENVIRONMENT" --json deployments > "${releases_path}/deployments.json"
bosh -e "$BOSH_ENVIRONMENT" --json stemcells > "${releases_path}/stemcells.json"

stemcells_found="ubuntu-bionic/1.79"

releases_found=$(bosh -e "$BOSH_ENVIRONMENT" -n interpolate \
    --path="/Tables/Content=deployments/Rows/name=${deployment_used}/release_s" \
    "${releases_path}/deployments.json")

pushd "$releases_path"

for r in ${releases_found} ; do
    set +Eeuo pipefail
    if [ -n "$r" ]; then
        bosh -e "$BOSH_ENVIRONMENT" -n -d "${deployment_used}" export-release "$r" "$stemcells_found"
    fi
    set -Eeuo pipefail
done

popd