runner/cmd/daemon.go

142 lines
3.3 KiB
Go

package cmd
import (
"context"
"fmt"
"os"
"github.com/mattn/go-isatty"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"golang.org/x/sync/errgroup"
"codeberg.org/forgejo/runner/artifactcache"
"codeberg.org/forgejo/runner/client"
"codeberg.org/forgejo/runner/config"
"codeberg.org/forgejo/runner/engine"
"codeberg.org/forgejo/runner/poller"
"codeberg.org/forgejo/runner/runtime"
)
func runDaemon(ctx context.Context, configFile *string) func(cmd *cobra.Command, args []string) error {
return func(cmd *cobra.Command, args []string) error {
log.Infoln("Starting runner daemon")
cfg, err := config.LoadDefault(*configFile)
if err != nil {
return fmt.Errorf("invalid configuration: %w", err)
}
initLogging(cfg)
reg, err := config.LoadRegistration(cfg.Runner.File)
if os.IsNotExist(err) {
log.Error("registration file not found, please register the runner first")
return err
} else if err != nil {
return fmt.Errorf("failed to load registration file: %w", err)
}
// require docker if a runner label uses a docker backend
needsDocker := false
for _, l := range reg.Labels {
_, schema, _, _ := runtime.ParseLabel(l)
if schema == "docker" {
needsDocker = true
break
}
}
if needsDocker {
// try to connect to docker daemon
// if failed, exit with error
if err := engine.Start(ctx); err != nil {
log.WithError(err).Fatalln("failed to connect docker daemon engine")
}
}
var g errgroup.Group
cli := client.New(
reg.Address,
cfg.Runner.Insecure,
reg.UUID,
reg.Token,
version,
)
if cfg.Runner.Envs == nil {
cfg.Runner.Envs = make(map[string]string, 10)
}
if _, ok := cfg.Runner.Envs["GITHUB_SERVER_URL"]; !ok {
cfg.Runner.Envs["GITHUB_SERVER_URL"] = reg.Address
}
runner := &runtime.Runner{
Client: cli,
Machine: reg.Name,
ForgeInstance: reg.Address,
Environ: cfg.Runner.Envs,
Labels: reg.Labels,
Network: cfg.Container.Network,
Version: version,
}
if *cfg.Cache.Enabled {
if handler, err := artifactcache.NewHandler(cfg.Cache.Dir, cfg.Cache.Host, cfg.Cache.Port); err != nil {
log.Errorf("cannot init cache server, it will be disabled: %v", err)
} else {
log.Infof("cache handler listens on: %v", handler.ExternalURL())
runner.CacheHandler = handler
}
}
poller := poller.New(
cli,
runner.Run,
cfg,
)
g.Go(func() error {
l := log.WithField("capacity", cfg.Runner.Capacity).
WithField("endpoint", reg.Address)
l.Infoln("polling the remote server")
if err := poller.Poll(ctx); err != nil {
l.Errorf("poller error: %v", err)
}
poller.Wait()
return nil
})
err = g.Wait()
if err != nil {
log.WithError(err).
Errorln("shutting down the server")
}
return err
}
}
// initLogging setup the global logrus logger.
func initLogging(cfg *config.Config) {
isTerm := isatty.IsTerminal(os.Stdout.Fd())
log.SetFormatter(&log.TextFormatter{
DisableColors: !isTerm,
FullTimestamp: true,
})
if l := cfg.Log.Level; l != "" {
level, err := log.ParseLevel(l)
if err != nil {
log.WithError(err).
Errorf("invalid log level: %q", l)
}
if log.GetLevel() != level {
log.Infof("log level changed to %v", level)
log.SetLevel(level)
}
}
}