hosts/losurdo/encrypt.sh

   1 #!/usr/bin/env bash
   2 set -eux
   3 set -o pipefail
   4 dir=${0%/*}
   5 gpg=$1
   6 base=${gpg%.gpg}
   7
   8 umask 177
   9 SECRET=$(mktemp /dev/shm/credential.secret.XXXXXXX)
  10 trap 'chmod 600 $SECRET; shred --remove=unlink $SECRET' EXIT
  11 gpg --yes --output "$SECRET" --decrypt "$dir/credential.secret.gpg"
  12
  13 gpg --decrypt "$gpg" |
  14 sudo unshare --mount sh -xc "
  15   mount --bind '$SECRET' /var/lib/systemd/credential.secret &&
  16   chmod 400 /var/lib/systemd/credential.secret &&
  17   mount --bind '$dir'/machine-id /etc/machine-id &&
  18   systemd-creds encrypt --with-key=host --name '${base##*/}' - - |
  19   install -m 400 -o '$USER' -g users /dev/stdin '$base.cred'
  20 "