Firecracker v0.15.0

Added

• New API action: SendCtrlAltDel, used to initiate a graceful shutdown,
  if the guest has driver support for i8042 and AT Keyboard. See
  the docs for details.
• New metric counting the number of egress packets with a spoofed MAC:
  net.tx_spoofed_mac_count.
• New API call: PATCH /network-interfaces/, used to update the rate limiters
  on a network interface, after the start of a microVM.

Changed

• Added missing vmm_version field to the InstanceInfo API swagger
  definition, and marked several other mandatory fields as such.
• New default command line for guest kernel:
  reboot=k panic=1 pci=off nomodules 8250.nr_uarts=0 i8042.noaux i8042.nomux i8042.nopnp i8042.dumbkbd.

Fixed

• virtio-blk: VIRTIO_BLK_T_FLUSH now working as expected.
• Vsock devices can be attached when starting Firecracker using the jailer.
• Vsock devices work properly when seccomp filtering is enabled.