Rename docker-machine

docker-machine-rename

#!/usr/bin/env zsh

# usage: docker-machine-rename default my-default
function docker-machine-rename {
  oldName="$1";
  newName="$2";
  
  [ -z "$oldName" -o -z "$newName" ] && echo "Must specify both the old and new machine names" && return 2;

  storePathRoot=$(docker-machine inspect -f '{{ .Driver.StorePath }}' "$oldName");
  storePathMachines="$storePathRoot/machines";
  oldPath="$storePathMachines/$oldName";
  newPath="$storePathMachines/$newName";

  [ -d "$newPath" ] && echo "Machine name $newName already exists, abort." && return 1;
  [ ! -d "$oldPath" ] && echo "Machine name $oldName does not exist, abort." && return 1;

  timestamp=$(date +%s);
  machineConfigPath="$newPath/config.json";
  vboxConfigPath="$newPath/$newName/$newName.vbox";

  # ensure vm is shutdown
  echo 'shutting down the vm if needed...';
  vboxmanage controlvm "$oldName" acpipowerbutton 2>/dev/null;

  # must do rename via vboxmanage, also verifies that the vm exists in vbox
  echo 'renaming vm...';
  vboxmanage modifyvm "$oldName" --name "$newName" || return $?;

  # need to move the mediums via vbox before moving files (and unregistering, of course!)
  echo 'moving vm attached media (disk and b2d)...';
  mkdir -p "$newPath"; # prepare the directory that the mediums will be moved to
  vboxmanage modifymedium disk "$oldPath/disk.vmdk" --move "$newPath/disk.vmdk" || return $?; # move persistent disk
  vboxmanage modifymedium dvd "$oldPath/boot2docker.iso" --move "$newPath/boot2docker.iso" || return $?; # move b2d

  # manually move the rest of the configs
  echo 'moving the docker-machine configurations...';
  vboxmanage unregistervm "$newName" || return $?; # will re-register after manual ops
  mv "$oldPath"/* "$newPath" || return $?;
  rmdir "$oldPath";
  sed -i ".$timestamp.bak" "s/$oldName/$newName/g" "$machineConfigPath" || return $?;
  vboxmanage registervm "$vboxConfigPath" || return $?;

  echo "done renaming '$oldName' to '$newName'";
  return 0;
}