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Monitor-only for individual containers (#652)

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* Add monitor-only label

* Add tests for monitor-only

* Treat missing monitor-only label as if the option was set to false

* Add docs for container-based monitor-only

* Add function doc

* Fix monitor-only logic
This commit is contained in:
David H 2020-10-03 22:00:02 +02:00 • committed by GitHub
parent 98b518612b
commit bde421be0d
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GPG key ID: 4AEE18F83AFDEB23
7 changed files with 147 additions and 10 deletions
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16
pkg/container/container.go
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@ -90,6 +90,22 @@ func (c Container) Enabled() (bool, bool) {
return parsedBool, true
}
// IsMonitorOnly returns the value of the monitor-only label. If the label
// is not set then false is returned.
func (c Container) IsMonitorOnly() bool {
rawBool, ok := c.getLabelValue(monitorOnlyLabel)
if !ok {
return false
}
parsedBool, err := strconv.ParseBool(rawBool)
if err != nil {
return false
}
return parsedBool
}
// Scope returns the value of the scope UID label and if the label
// was set.
func (c Container) Scope() (string, bool) {

1
pkg/container/metadata.go
View file

@ -4,6 +4,7 @@ const (
watchtowerLabel = "com.centurylinklabs.watchtower"
signalLabel = "com.centurylinklabs.watchtower.stop-signal"
enableLabel = "com.centurylinklabs.watchtower.enable"
monitorOnlyLabel = "com.centurylinklabs.watchtower.monitor-only"
dependsOnLabel = "com.centurylinklabs.watchtower.depends-on"
zodiacLabel = "com.centurylinklabs.zodiac.original-image"
scope = "com.centurylinklabs.watchtower.scope"