Bootstrap the manager process #1525
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| package main | ||
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| import ( | ||
| "context" | ||
| "fmt" | ||
| "os" | ||
| "os/signal" | ||
| "path" | ||
| "syscall" | ||
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| "github.com/spf13/cobra" | ||
| "github.com/spf13/viper" | ||
| ) | ||
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| func main() { | ||
| ctx, cancel := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM) | ||
| defer cancel() | ||
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| name := path.Base(os.Args[0]) | ||
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| InitAndExecute(ctx, name) | ||
| } | ||
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| func RootCmd(ctx context.Context, v *viper.Viper, name string) *cobra.Command { | ||
| cmd := &cobra.Command{ | ||
| Use: name, | ||
| Short: fmt.Sprintf("The %s cluster manager process", name), | ||
| RunE: func(cmd *cobra.Command, args []string) error { | ||
| cmd.Help() | ||
| os.Exit(1) | ||
| return nil | ||
| }, | ||
| } | ||
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| cmd.AddCommand(StartCmd(ctx, name)) | ||
| cmd.AddCommand(StatusCmd(ctx, name)) | ||
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| return cmd | ||
| } | ||
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| func InitAndExecute(ctx context.Context, name string) { | ||
| v := viper.GetViper() | ||
| if err := RootCmd(ctx, v, name).Execute(); err != nil { | ||
| fmt.Println(err) | ||
| os.Exit(1) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| package main | ||
|
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| import ( | ||
| "context" | ||
| "fmt" | ||
| "os" | ||
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| "github.com/replicatedhq/embedded-cluster/pkg/defaults" | ||
| "github.com/replicatedhq/embedded-cluster/pkg/socket" | ||
| "github.com/replicatedhq/embedded-cluster/pkg/websocket" | ||
| "github.com/spf13/cobra" | ||
| ) | ||
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| func StartCmd(ctx context.Context, name string) *cobra.Command { | ||
| var ( | ||
| dataDir string | ||
| ) | ||
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| cmd := &cobra.Command{ | ||
| Use: "start", | ||
| Short: fmt.Sprintf("Start the %s cluster manager", name), | ||
| RunE: func(cmd *cobra.Command, args []string) error { | ||
| // init the kubeconfig and tmpdir from the data dir | ||
| provider := defaults.NewProvider(dataDir) | ||
| os.Setenv("KUBECONFIG", provider.PathToKubeConfig()) | ||
| os.Setenv("TMPDIR", provider.EmbeddedClusterTmpSubDir()) | ||
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| // start a unix socket so we can respond to commands | ||
| go func() { | ||
| if err := socket.StartSocketServer(ctx); err != nil { | ||
| panic(err) | ||
| } | ||
| }() | ||
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| // connect to the KOTS WebSocket server | ||
| go websocket.ConnectToKOTSWebSocket(ctx) | ||
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| <-ctx.Done() | ||
| return nil | ||
| }, | ||
| } | ||
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| cmd.Flags().StringVar(&dataDir, "data-dir", "", "Path to the data directory") | ||
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| return cmd | ||
| } |
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| Original file line number | Diff line number | Diff line change | ||||
|---|---|---|---|---|---|---|
| @@ -0,0 +1,64 @@ | ||||||
| package main | ||||||
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| import ( | ||||||
| "context" | ||||||
| "fmt" | ||||||
| "io" | ||||||
| "net" | ||||||
| "net/http" | ||||||
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| "github.com/replicatedhq/embedded-cluster/pkg/socket" | ||||||
| "github.com/spf13/cobra" | ||||||
| ) | ||||||
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| func StatusCmd(ctx context.Context, name string) *cobra.Command { | ||||||
| cmd := &cobra.Command{ | ||||||
| Use: "status", | ||||||
| Short: fmt.Sprintf("Get the status of the %s cluster manager", name), | ||||||
| RunE: func(cmd *cobra.Command, args []string) error { | ||||||
| return getServerStatus(ctx) | ||||||
| }, | ||||||
| } | ||||||
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| return cmd | ||||||
| } | ||||||
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| func getServerStatus(ctx context.Context) error { | ||||||
|
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Suggested change
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| socketPath, err := socket.GetSocketPath() | ||||||
| if err != nil { | ||||||
| return err | ||||||
| } | ||||||
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| transport := &http.Transport{ | ||||||
| DialContext: func(ctx context.Context, network string, addr string) (net.Conn, error) { | ||||||
| return net.Dial("unix", socketPath) | ||||||
| }, | ||||||
| } | ||||||
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| client := &http.Client{ | ||||||
| Transport: transport, | ||||||
| } | ||||||
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| req, err := http.NewRequest("GET", "http://unix/healthz", nil) | ||||||
| if err != nil { | ||||||
| return err | ||||||
| } | ||||||
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| resp, err := client.Do(req) | ||||||
| if err != nil { | ||||||
| return err | ||||||
| } | ||||||
| defer resp.Body.Close() | ||||||
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| if resp.StatusCode != http.StatusOK { | ||||||
| return fmt.Errorf("unexpected status code: %d", resp.StatusCode) | ||||||
| } | ||||||
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| b, err := io.ReadAll(resp.Body) | ||||||
| if err != nil { | ||||||
| return err | ||||||
| } | ||||||
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| fmt.Println(string(b)) | ||||||
| return nil | ||||||
| } | ||||||
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