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36 lines
865 B
Go
36 lines
865 B
Go
package actions
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import (
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"sort"
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"github.com/v2tec/watchtower/container"
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)
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func watchtowerContainersFilter(c container.Container) bool { return c.IsWatchtower() }
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// CheckPrereqs will ensure that there are not multiple instances of the
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// watchtower running simultaneously. If multiple watchtower containers are
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// detected, this function will stop and remove all but the most recently
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// started container.
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func CheckPrereqs(client container.Client, cleanup bool) error {
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containers, err := client.ListContainers(watchtowerContainersFilter)
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if err != nil {
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return err
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}
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if len(containers) > 1 {
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sort.Sort(container.ByCreated(containers))
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// Iterate over all containers execept the last one
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for _, c := range containers[0 : len(containers)-1] {
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client.StopContainer(c, 60)
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if cleanup {
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client.RemoveImage(c)
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}
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}
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}
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return nil
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}
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