mirror of
https://github.com/siderolabs/talos.git
synced 2025-10-20 20:11:13 +02:00
505b5022c4
Most crucial changes in `init/main.go`: on shutdown now Talos tries to stop gracefully all the services. All the shutdown paths are unified, including poweroff, reboot and panic handling on startup. While I was at it, I also fixed bug with containers failing to start when old snapshot is still around. Service lifecycle is wrapped with `ServiceRunner` object now which handles state transitions and captures events related to state changes. Every change goes to the log as well. There's no way to capture service state yet, but that is planned to be implemented as RPC API for `init` which is exposed via `osd` to `osctl`. Future steps: 1. Implement service dependencies for correct startup order and shutdown order. 2. Implement service health, so that we can say "start trustd when containerd is up and healthy". 3. Implement gRPC API for init, expose via osd (service status, restart, poweroff, ...) 4. Impement 'String()' for conditions, so that we can see what service is waiting on right now. Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>
65 lines
1.3 KiB
Go
65 lines
1.3 KiB
Go
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package main
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import (
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"log"
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"github.com/mdlayher/genetlink"
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"github.com/mdlayher/netlink"
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"github.com/pkg/errors"
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)
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const (
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// See https://github.com/torvalds/linux/blob/master/drivers/acpi/event.c
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acpiGenlFamilyName = "acpi_event"
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acpiGenlMcastGroupName = "acpi_mc_group"
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)
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func listenForPowerButton() (poweroffCh <-chan struct{}, err error) {
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// Get the acpi_event family.
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conn, err := genetlink.Dial(nil)
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if err != nil {
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return nil, err
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}
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// nolint: errcheck
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defer conn.Close()
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f, err := conn.GetFamily(acpiGenlFamilyName)
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if netlink.IsNotExist(err) {
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return nil, errors.Wrap(err, acpiGenlFamilyName+" not available")
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}
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var id uint32
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for _, group := range f.Groups {
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if group.Name == acpiGenlMcastGroupName {
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id = group.ID
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}
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}
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if err = conn.JoinGroup(id); err != nil {
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return nil, err
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}
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// Listen for ACPI events.
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ch := make(chan struct{})
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go func() {
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for {
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msgs, _, err := conn.Receive()
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if err != nil {
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log.Printf("error reading from ACPI channel: %s", err)
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return
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}
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if len(msgs) > 0 {
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close(ch)
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return
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}
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}
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}()
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return ch, nil
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}
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