Merge pull request #391 from thaJeztah/gpg_asc

update script to use .asc, remove gpg as pre-requisite

install.sh

@@ -496,19 +496,16 @@ do_install() {
  case "$lsb_dist" in
  ubuntu|debian|raspbian)
  pre_reqs="apt-transport-https ca-certificates curl"
- if ! command -v gpg > /dev/null; then
- pre_reqs="$pre_reqs gnupg"
- fi
- apt_repo="deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] $DOWNLOAD_URL/linux/$lsb_dist $dist_version $CHANNEL"
+ apt_repo="deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] $DOWNLOAD_URL/linux/$lsb_dist $dist_version $CHANNEL"
  (
  if ! is_dry_run; then
  set -x
  fi
  $sh_c 'apt-get update -qq >/dev/null'
  $sh_c "DEBIAN_FRONTEND=noninteractive apt-get install -y -qq $pre_reqs >/dev/null"
  $sh_c 'install -m 0755 -d /etc/apt/keyrings'
- $sh_c "curl -fsSL \"$DOWNLOAD_URL/linux/$lsb_dist/gpg\" | gpg --dearmor --yes -o /etc/apt/keyrings/docker.gpg"
- $sh_c "chmod a+r /etc/apt/keyrings/docker.gpg"
+ $sh_c "curl -fsSL \"$DOWNLOAD_URL/linux/$lsb_dist/gpg\" -o /etc/apt/keyrings/docker.asc"
+ $sh_c "chmod a+r /etc/apt/keyrings/docker.asc"
  $sh_c "echo \"$apt_repo\" > /etc/apt/sources.list.d/docker.list"
  $sh_c 'apt-get update -qq >/dev/null'
  )