history

Documentation

Index

• func Read(path string) map[string]node.History
• func Update(candidates []node.Node, history map[string]node.History)
• func UpdateStatus(candidates []node.Node, history map[string]node.History)
• func Write(path string, candidateHistory map[string]node.History)

Functions

func Read

func Read(path string) map[string]node.History

Read reads a JSON file containing a map of string -> candidate. If the file cannot be read or deserialized, it returns an empty map.

func Update

func Update(candidates []node.Node, history map[string]node.History)

Update updates the LastReboot field for all the candidates named in the nodes slice and sets the Status to NotObserved. If a candidate did not previously exist, it creates a new one.

func UpdateStatus

func UpdateStatus(candidates []node.Node, history map[string]node.History)

UpdateStatus updates the history according to the list of nodes to be rebooted on the current run. If a node was in NotObserved status, it will be updated to either ObservedOffline, if it's still in the candidates slice, or ObservedOnline if it's not.

func Write

func Write(path string, candidateHistory map[string]node.History)

Write serializes a string -> candidate map to a JSON file. If the map cannot be serialized or the file cannot be written, it exits.