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package serve
import (
"fmt"
"os"
"os/signal"
"syscall"
"github.com/roadrunner-server/roadrunner/v2/internal/container"
"github.com/roadrunner-server/roadrunner/v2/internal/meta"
configImpl "github.com/roadrunner-server/config/v2"
"github.com/roadrunner-server/errors"
"github.com/spf13/cobra"
)
// NewCommand creates `serve` command.
func NewCommand(cfgPlugin *configImpl.Plugin) *cobra.Command { //nolint:funlen
return &cobra.Command{
Use: "serve",
Short: "Start RoadRunner server",
RunE: func(*cobra.Command, []string) error {
const op = errors.Op("handle_serve_command")
// create endure container config
containerCfg, err := container.NewConfig(cfgPlugin)
if err != nil {
return errors.E(op, err)
}
// set the grace period which would be same for all the plugins
cfgPlugin.Timeout = containerCfg.GracePeriod
cfgPlugin.Version = meta.Version()
// create endure container
endureContainer, err := container.NewContainer(*containerCfg)
if err != nil {
return errors.E(op, err)
}
// register config plugin
if err = endureContainer.Register(cfgPlugin); err != nil {
return errors.E(op, err)
}
// register another container plugins
for i, plugins := 0, container.Plugins(); i < len(plugins); i++ {
if err = endureContainer.Register(plugins[i]); err != nil {
return errors.E(op, err)
}
}
// init container and all services
if err = endureContainer.Init(); err != nil {
return errors.E(op, err)
}
// start serving the graph
errCh, err := endureContainer.Serve()
if err != nil {
return errors.E(op, err)
}
oss, stop := make(chan os.Signal, 2), make(chan struct{}, 1) //nolint:gomnd
signal.Notify(oss, os.Interrupt, syscall.SIGTERM, syscall.SIGINT)
go func() {
// first catch - stop the container
<-oss
// send signal to stop execution
stop <- struct{}{}
// after first hit we are waiting for the second
// second catch - exit from the process
<-oss
fmt.Println("exit forced")
os.Exit(1)
}()
fmt.Printf("[INFO] RoadRunner server started; version: %s, buildtime: %s\n", meta.Version(), meta.BuildTime())
for {
select {
case e := <-errCh:
fmt.Printf("error occurred: %v, plugin: %s\n", e.Error, e.VertexID)
// return error, container already stopped internally
if !containerCfg.RetryOnFail {
return errors.E(op, e.Error)
}
case <-stop: // stop the container after first signal
fmt.Printf("stop signal received, grace timeout is: %d seconds\n", uint64(containerCfg.GracePeriod.Seconds()))
if err = endureContainer.Stop(); err != nil {
fmt.Printf("error occurred during the stopping container: %v\n", err)
}
return nil
}
}
},
}
}
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