// runUpgradeSteps runs the required upgrade steps for the machine
// agent, retrying on failure. The agent's UpgradedToVersion is set
// once the upgrade is complete.
//
// This function conforms to the agent.ConfigMutator type and is
// designed to be called via a machine agent's ChangeConfig method.
func (c *upgradeWorkerContext) runUpgradeSteps(agentConfig agent.ConfigSetter) error {
var upgradeErr error
a := c.agent
a.setMachineStatus(c.apiState, params.StatusStarted, fmt.Sprintf("upgrading to %v", c.toVersion))
context := upgrades.NewContext(agentConfig, c.apiState, c.st)
logger.Infof("starting upgrade from %v to %v for %q", c.fromVersion, c.toVersion, c.tag)
targets := jobsToTargets(c.jobs, c.isMaster)
attempts := getUpgradeRetryStrategy()
for attempt := attempts.Start(); attempt.Next(); {
upgradeErr = upgradesPerformUpgrade(c.fromVersion, targets, context)
if upgradeErr == nil {
break
}
if cmdutil.ConnectionIsDead(logger, c.apiState) {
// API connection has gone away - abort!
return &apiLostDuringUpgrade{upgradeErr}
}
if attempt.HasNext() {
c.reportUpgradeFailure(upgradeErr, true)
}
}
if upgradeErr != nil {
return upgradeErr
}
agentConfig.SetUpgradedToVersion(c.toVersion)
return nil
}
// runUpgradeSteps runs the required upgrade steps for the machine
// agent, retrying on failure. The agent's UpgradedToVersion is set
// once the upgrade is complete.
//
// This function conforms to the agent.ConfigMutator type and is
// designed to be called via a machine agent's ChangeConfig method.
func (w *upgradesteps) runUpgradeSteps(agentConfig agent.ConfigSetter) error {
var upgradeErr error
w.machine.SetStatus(status.Started, fmt.Sprintf("upgrading to %v", w.toVersion), nil)
context := upgrades.NewContext(agentConfig, w.apiConn, w.st)
logger.Infof("starting upgrade from %v to %v for %q", w.fromVersion, w.toVersion, w.tag)
targets := jobsToTargets(w.jobs, w.isMaster)
attempts := getUpgradeRetryStrategy()
for attempt := attempts.Start(); attempt.Next(); {
upgradeErr = PerformUpgrade(w.fromVersion, targets, context)
if upgradeErr == nil {
break
}
if cmdutil.ConnectionIsDead(logger, w.apiConn) {
// API connection has gone away - abort!
return &apiLostDuringUpgrade{upgradeErr}
}
if attempt.HasNext() {
w.reportUpgradeFailure(upgradeErr, true)
}
}
if upgradeErr != nil {
return upgradeErr
}
agentConfig.SetUpgradedToVersion(w.toVersion)
return nil
}