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watchtower/actions/check.go
2015-07-21 22:41:58 +00:00

28 lines
568 B
Go

package actions
import (
"sort"
"github.com/CenturyLinkLabs/watchtower/container"
)
func watchtowerContainersFilter(c container.Container) bool { return c.IsWatchtower() }
func CheckPrereqs(client container.Client) error {
containers, err := client.ListContainers(watchtowerContainersFilter)
if err != nil {
return err
}
if len(containers) > 1 {
sort.Sort(container.ByCreated(containers))
// Iterate over all containers execept the last one
for _, c := range containers[0 : len(containers)-1] {
client.StopContainer(c, 60)
}
}
return nil
}