talos/internal/pkg/mount/squashfs.go
Andrew Rynhard 49307d554d refactor: improve machined
This is a rewrite of machined. It addresses some of the limitations and
complexity in the implementation. This introduces the idea of a
controller. A controller is responsible for managing the runtime, the
sequencer, and a new state type introduced in this PR.

A few highlights are:

- no more event bus
- functional approach to tasks (no more types defined for each task)
  - the task function definition now offers a lot more context, like
    access to raw API requests, the current sequence, a logger, the new
    state interface, and the runtime interface.
- no more panics to handle reboots
- additional initialize and reboot sequences
- graceful gRPC server shutdown on critical errors
- config is now stored at install time to avoid having to download it at
  install time and at boot time
- upgrades now use the local config instead of downloading it
- the upgrade API's preserve option takes precedence over the config's
  install force option

Additionally, this pulls various packes in under machined to make the
code easier to navigate.

Signed-off-by: Andrew Rynhard <andrew@andrewrynhard.com>
2020-04-28 08:20:55 -07:00

28 lines
841 B
Go

// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package mount
import (
"golang.org/x/sys/unix"
"gopkg.in/freddierice/go-losetup.v1"
"github.com/talos-systems/talos/pkg/constants"
)
// SquashfsMountPoints returns the mountpoints required to boot the system.
func SquashfsMountPoints(prefix string) (mountpoints *Points, err error) {
var dev losetup.Device
dev, err = losetup.Attach("/"+constants.RootfsAsset, 0, true)
if err != nil {
return nil, err
}
squashfs := NewMountPoints()
squashfs.Set("squashfs", NewMountPoint(dev.Path(), "/", "squashfs", unix.MS_RDONLY|unix.MS_I_VERSION, "", WithPrefix(prefix), WithReadOnly(true), WithShared(true)))
return squashfs, nil
}