57e8ee4b51
This cleans up the CLI code significantly. Also makes some of this re-usable for providers who want to do so. This also removes the main.go from the top of the tree of the repro, instead moving it into cmd/virtual-kubelet. This allows us to better utilize the package namespace (and e.g. mv the `vkubelet` package to the top of the tree).
69 lines
1.8 KiB
Go
69 lines
1.8 KiB
Go
package main
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import (
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"context"
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"os"
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"os/signal"
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"path/filepath"
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"syscall"
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"github.com/Sirupsen/logrus"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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"github.com/virtual-kubelet/virtual-kubelet/cmd/virtual-kubelet/commands/providers"
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"github.com/virtual-kubelet/virtual-kubelet/cmd/virtual-kubelet/commands/root"
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"github.com/virtual-kubelet/virtual-kubelet/cmd/virtual-kubelet/commands/version"
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"github.com/virtual-kubelet/virtual-kubelet/log"
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logruslogger "github.com/virtual-kubelet/virtual-kubelet/log/logrus"
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"github.com/virtual-kubelet/virtual-kubelet/trace"
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"github.com/virtual-kubelet/virtual-kubelet/trace/opencensus"
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)
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func main() {
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ctx, cancel := context.WithCancel(context.Background())
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sig := make(chan os.Signal, 1)
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signal.Notify(sig, syscall.SIGINT, syscall.SIGTERM)
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go func() {
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<-sig
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cancel()
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}()
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log.L = logruslogger.FromLogrus(logrus.NewEntry(logrus.StandardLogger()))
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trace.T = opencensus.Adapter{}
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var opts root.Opts
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optsErr := root.SetDefaultOpts(&opts)
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rootCmd := root.NewCommand(ctx, filepath.Base(os.Args[0]), opts)
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rootCmd.AddCommand(version.NewCommand(), providers.NewCommand())
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preRun := rootCmd.PreRunE
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var logLevel string
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rootCmd.PreRunE = func(cmd *cobra.Command, args []string) error {
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if optsErr != nil {
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return optsErr
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}
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if preRun != nil {
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return preRun(cmd, args)
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}
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return nil
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}
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rootCmd.PersistentFlags().StringVar(&logLevel, "log-level", "info", `set the log level, e.g. "debug", "info", "warn", "error"`)
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rootCmd.PersistentPreRunE = func(cmd *cobra.Command, args []string) error {
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if logLevel != "" {
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lvl, err := logrus.ParseLevel(logLevel)
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if err != nil {
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return errors.Wrap(err, "could not parse log level")
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}
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logrus.SetLevel(lvl)
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}
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return nil
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}
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if err := rootCmd.Execute(); err != nil && errors.Cause(err) != context.Canceled {
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log.G(ctx).Fatal(err)
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}
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}
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