func (m *machineProvider) updateMachines(machines []string, config *common.RunnerConfig) (data machinesData) {
data.Runner = config.ShortDescription()
for _, name := range machines {
details := m.machineDetails(name, false)
err := m.updateMachine(config, &data, details)
if err != nil {
m.remove(details.Name, err)
}
data.Add(details.State)
}
return
}
func (m *machineProvider) Acquire(config *common.RunnerConfig) (data common.ExecutorData, err error) {
if config.Machine == nil || config.Machine.MachineName == "" {
err = fmt.Errorf("Missing Machine options")
return
}
machines, err := m.loadMachines(config)
if err != nil {
return
}
// Lock updating machines, because two Acquires can be run at the same time
m.acquireLock.Lock()
// Update a list of currently configured machines
machinesData := m.updateMachines(machines, config)
// Pre-create machines
m.createMachines(config, &machinesData)
m.acquireLock.Unlock()
logrus.WithFields(machinesData.Fields()).
WithField("runner", config.ShortDescription()).
WithField("minIdleCount", config.Machine.IdleCount).
WithField("maxMachines", config.Limit).
WithField("time", time.Now()).
Debugln("Docker Machine Details")
machinesData.writeDebugInformation()
// Try to find a free machine
details := m.findFreeMachine(machines...)
if details != nil {
data = details
return
}
// If we have a free machines we can process a build
if config.Machine.IdleCount != 0 && machinesData.Idle == 0 {
err = errors.New("No free machines that can process builds")
}
return
}
func (mr *RunCommand) processRunner(id int, runner *common.RunnerConfig, runners chan *common.RunnerConfig) (err error) {
provider := common.GetExecutor(runner.Executor)
if provider == nil {
return
}
context, err := provider.Acquire(runner)
if err != nil {
log.Warningln("Failed to update executor", runner.Executor, "for", runner.ShortDescription(), err)
return
}
defer provider.Release(runner, context)
// Acquire build slot
if !mr.buildsHelper.acquire(runner) {
return
}
defer mr.buildsHelper.release(runner)
// Receive a new build
buildData, healthy := mr.network.GetBuild(*runner)
mr.makeHealthy(runner.UniqueID(), healthy)
if buildData == nil {
return
}
// Make sure to always close output
buildCredentials := &common.BuildCredentials{
ID: buildData.ID,
Token: buildData.Token,
}
trace := mr.network.ProcessBuild(*runner, buildCredentials)
defer trace.Fail(err)
// Create a new build
build := &common.Build{
GetBuildResponse: *buildData,
Runner: runner,
ExecutorData: context,
SystemInterrupt: mr.abortBuilds,
}
// Add build to list of builds to assign numbers
mr.buildsHelper.addBuild(build)
defer mr.buildsHelper.removeBuild(build)
// Process the same runner by different worker again
// to speed up taking the builds
select {
case runners <- runner:
mr.log().WithField("runner", runner.ShortDescription()).Debugln("Requeued the runner")
default:
mr.log().WithField("runner", runner.ShortDescription()).Debugln("Failed to requeue the runner: ")
}
// Process a build
return build.Run(mr.config, trace)
}
func machineFilter(config *common.RunnerConfig) string {
return machineFormat(config.ShortDescription(), config.Machine.MachineName)
}
