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Add inactivity timeout for runners.

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By removing runners after a specified timeout they no longer stay
around indefinitely and block Nomads capacities. The timeout can be set
individually per runner when requesting the provide route. If it is set
to 0, the runner is never removed automatically.

The timeout is reset when activity is detected. Currently that is when
something gets executed or the filesystem gets modified.
This commit is contained in:
Konrad Hanff
2021-06-17 10:16:50 +02:00
parent c7ed54942d
commit 4b2cae0bd1
6 changed files with 212 additions and 17 deletions
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4
nomad/nomad.go
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@@ -63,8 +63,8 @@ type ExecutorAPI interface {
ExecuteCommand(allocationID string, ctx context.Context, command []string, tty bool,
stdin io.Reader, stdout, stderr io.Writer) (int, error)
// MarkRunnerAsUsed marks the runner with the given ID as used.
MarkRunnerAsUsed(runnerID string) error
// MarkRunnerAsUsed marks the runner with the given ID as used. It also stores the timeout duration in the metadata.
MarkRunnerAsUsed(runnerID string, duration int) error
}
// APIClient implements the ExecutorAPI interface and can be used to perform different operations on the real