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49307d554d
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>
40 lines
943 B
Go
40 lines
943 B
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 mount
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import (
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"path"
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"golang.org/x/sys/unix"
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)
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// CGroupMountPoints returns the cgroup mount points
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func CGroupMountPoints() (mountpoints *Points, err error) {
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base := "/sys/fs/cgroup"
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cgroups := NewMountPoints()
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cgroups.Set("dev", NewMountPoint("tmpfs", base, "tmpfs", unix.MS_NOSUID|unix.MS_NODEV|unix.MS_NOEXEC|unix.MS_RELATIME, "mode=755"))
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controllers := []string{
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"blkio",
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"cpu",
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"cpuacct",
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"cpuset",
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"devices",
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"freezer",
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"hugetlb",
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"memory",
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"net_cls",
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"net_prio",
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"perf_event",
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"pids",
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}
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for _, c := range controllers {
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p := path.Join(base, c)
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cgroups.Set(c, NewMountPoint(c, p, "cgroup", unix.MS_NOSUID|unix.MS_NODEV|unix.MS_NOEXEC|unix.MS_RELATIME, c))
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}
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return cgroups, nil
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}
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