yanic/cmd/serve.go

78 lines
2.1 KiB
Go

package cmd
import (
"os"
"os/signal"
"syscall"
"time"
"github.com/bdlm/log"
"github.com/spf13/cobra"
allDatabase "github.com/FreifunkBremen/yanic/database/all"
allOutput "github.com/FreifunkBremen/yanic/output/all"
"github.com/FreifunkBremen/yanic/respond"
"github.com/FreifunkBremen/yanic/runtime"
"github.com/FreifunkBremen/yanic/webserver"
)
// serveCmd represents the serve command
var serveCmd = &cobra.Command{
Use: "serve",
Short: "Runs the yanic server",
Example: "yanic serve --config /etc/yanic.toml",
Run: func(cmd *cobra.Command, args []string) {
config := loadConfig()
err := allDatabase.Start(config.Database)
if err != nil {
log.Panicf("could not connect to database: %s", err)
}
defer allDatabase.Close()
nodes = runtime.NewNodes(&config.Nodes)
nodes.Start()
err = allOutput.Start(nodes, config.Nodes)
if err != nil {
log.Panicf("error on init outputs: %s", err)
}
defer allOutput.Close()
if config.Webserver.Enable {
log.Infof("starting webserver on %s", config.Webserver.Bind)
srv := webserver.New(config.Webserver, nodes)
go webserver.Start(srv)
defer srv.Close()
} else if prom := config.Webserver.Prometheus; prom != nil && prom.Enable {
log.Error("to enable prometheus exporter, please enable webserver ")
}
if config.Respondd.Enable {
// Delaying startup to start at a multiple of `duration` since the zero time.
if duration := config.Respondd.Synchronize.Duration; duration > 0 {
now := time.Now()
delay := duration - now.Sub(now.Truncate(duration))
log.Infof("delaying %0.1f seconds", delay.Seconds())
time.Sleep(delay)
}
collector = respond.NewCollector(allDatabase.Conn, nodes, &config.Respondd)
collector.Start(config.Respondd.CollectInterval.Duration)
defer collector.Close()
}
// Wait for INT/TERM
sigs := make(chan os.Signal, 1)
signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
sig := <-sigs
log.Infof("received %s", sig)
},
}
func init() {
RootCmd.AddCommand(serveCmd)
serveCmd.Flags().StringVarP(&configPath, "config", "c", "config.toml", "Path to configuration file")
}