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file-restore-daemon: add binary with virtio-vsock API server

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Implements the base of a small daemon to run within a file-restore VM.

The binary spawns an API server on a virtio-vsock socket, listening for
connections from the host. This happens mostly manually via the standard
Unix socket API, since tokio/hyper do not have support for vsock built
in. Once we have the accept'ed file descriptor, we can create a
UnixStream and use our tower service implementation for that.

The binary is deliberately not installed in the usual $PATH location,
since it shouldn't be executed on the host by a user anyway.

For now, only the API calls 'status' and 'stop' are implemented, to
demonstrate and test proxmox::api functionality.

Authorization is provided via a custom ApiAuth only checking a header
value against a static /ticket file.

Since the REST server implementation uses the log!() macro, we can
redirect its output to stdout by registering env_logger as the logging
target. env_logger is already in our dependency tree via zstd/bindgen.

Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
This commit is contained in:
Stefan Reiter
2021-03-31 12:21:52 +02:00
committed by Thomas Lamprecht
parent 26858dba84
commit dd9cef56fc
10 changed files with 246 additions and 1 deletions
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1
debian/control vendored
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@ -15,6 +15,7 @@ Build-Depends: debhelper (>= 11),
librust-crossbeam-channel-0.5+default-dev,
librust-endian-trait-0.6+arrays-dev,
librust-endian-trait-0.6+default-dev,
librust-env-logger-0.7+default-dev,
librust-flate2-1+default-dev,
librust-futures-0.3+default-dev,
librust-h2-0.3+default-dev,