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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>
30 lines
895 B
Go
30 lines
895 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 runtime
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import (
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"context"
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"log"
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)
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// TaskSetupFunc defines the function that a task will execute for a specific runtime
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// mode.
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type TaskSetupFunc func(seq Sequence, data interface{}) TaskExecutionFunc
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// TaskExecutionFunc defines the function that a task will execute for a specific runtime
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// mode.
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type TaskExecutionFunc func(context.Context, *log.Logger, Runtime) error
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// Phase represents a collection of tasks to be performed concurrently.
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type Phase []TaskSetupFunc
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// Controller represents the controller responsible for managing the execution
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// of sequences.
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type Controller interface {
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Runtime() Runtime
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Sequencer() Sequencer
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Run(Sequence, interface{}) error
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}
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