// Prepare sets up API and registers the host data to the Mackerel server.
// Use returned values to call Run().
func Prepare(conf *config.Config) (*Context, error) {
api, err := mackerel.NewAPI(conf.Apibase, conf.Apikey, conf.Verbose)
if err != nil {
return nil, fmt.Errorf("Failed to prepare an api: %s", err.Error())
}
host, err := prepareHost(conf.Root, api, conf.Roles, conf.CheckNames(), conf.DisplayName, conf.HostStatus.OnStart)
if err != nil {
return nil, fmt.Errorf("Failed to prepare host: %s", err.Error())
}
return &Context{
ag: NewAgent(conf),
conf: conf,
host: host,
api: api,
}, nil
}
func runOncePayload(conf *config.Config) ([]mackerel.CreateGraphDefsPayload, *mackerel.HostSpec, *agent.MetricsResult, error) {
hostname, meta, interfaces, err := collectHostSpecs()
if err != nil {
logger.Errorf("While collecting host specs: %s", err)
return nil, nil, nil, err
}
origInterval := metricsInterval
metricsInterval = 1 * time.Second
defer func() {
metricsInterval = origInterval
}()
ag := NewAgent(conf)
graphdefs := ag.CollectGraphDefsOfPlugins()
metrics := ag.CollectMetrics(time.Now())
return graphdefs, &mackerel.HostSpec{
Name: hostname,
Meta: meta,
Interfaces: interfaces,
RoleFullnames: conf.Roles,
Checks: conf.CheckNames(),
DisplayName: conf.DisplayName,
}, metrics, nil
}
