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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| package main | ||
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| import "github.com/gadget-inc/dateilager/pkg/cachedcli" | ||
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| func main() { | ||
| cachedcli.ClientExecute() | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,7 +1,7 @@ | ||
| package main | ||
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| import "github.com/gadget-inc/dateilager/pkg/cli" | ||
| import "github.com/gadget-inc/dateilager/pkg/cachedcli" | ||
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| func main() { | ||
| cli.CacheDaemonExecute() | ||
| cachedcli.CacheDaemonExecute() | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,145 @@ | ||
| package cachedcli | ||
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| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "flag" | ||
| "fmt" | ||
| "strings" | ||
| "time" | ||
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| "github.com/gadget-inc/dateilager/internal/logger" | ||
| "github.com/gadget-inc/dateilager/internal/telemetry" | ||
| "github.com/gadget-inc/dateilager/pkg/client" | ||
| "github.com/gadget-inc/dateilager/pkg/version" | ||
| "github.com/spf13/cobra" | ||
| "go.opentelemetry.io/otel" | ||
| "go.opentelemetry.io/otel/propagation" | ||
| "go.opentelemetry.io/otel/trace" | ||
| "go.uber.org/zap" | ||
| "go.uber.org/zap/zapcore" | ||
| ) | ||
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| var ( | ||
| shutdownTelemetry func() | ||
| span trace.Span | ||
| ) | ||
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| func NewCachedClientCommand() *cobra.Command { | ||
| var ( | ||
| level *zapcore.Level | ||
| encoding string | ||
| tracing bool | ||
| otelContext string | ||
| socket string | ||
| timeout uint | ||
| ) | ||
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| var cancel context.CancelFunc | ||
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| cmd := &cobra.Command{ | ||
| Use: "cachedclient", | ||
| Short: "DateiLager cached client", | ||
| DisableAutoGenTag: true, | ||
| Version: version.Version, | ||
| SilenceErrors: true, | ||
| PersistentPreRunE: func(cmd *cobra.Command, _ []string) error { | ||
| cmd.SilenceUsage = true // silence usage when an error occurs after flags have been parsed | ||
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| config := zap.NewProductionConfig() | ||
| config.EncoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder | ||
| config.Level = zap.NewAtomicLevelAt(*level) | ||
| config.Encoding = encoding | ||
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| err := logger.Init(config) | ||
| if err != nil { | ||
| return fmt.Errorf("could not initialize logger: %w", err) | ||
| } | ||
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| ctx := cmd.Context() | ||
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| if timeout != 0 { | ||
| ctx, cancel = context.WithTimeout(cmd.Context(), time.Duration(timeout)*time.Millisecond) | ||
| } | ||
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| if tracing { | ||
| shutdownTelemetry = telemetry.Init(ctx, telemetry.Client) | ||
| } | ||
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| if otelContext != "" { | ||
| var mapCarrier propagation.MapCarrier | ||
| err := json.NewDecoder(strings.NewReader(otelContext)).Decode(&mapCarrier) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to decode otel-context: %w", err) | ||
| } | ||
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| ctx = otel.GetTextMapPropagator().Extract(ctx, mapCarrier) | ||
| } | ||
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| ctx, span = telemetry.Start(ctx, "cached-cmd.main") | ||
|
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| if socket == "" { | ||
| return fmt.Errorf("required flag(s) \"socket\" not set") | ||
| } | ||
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| cl, err := client.NewCachedUnixClient(ctx, socket) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| ctx = client.CachedIntoContext(ctx, cl) | ||
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| cmd.SetContext(ctx) | ||
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| return nil | ||
| }, | ||
| PersistentPostRunE: func(cmd *cobra.Command, _ []string) error { | ||
| if cancel != nil { | ||
| cancel() | ||
| } | ||
| return nil | ||
| }, | ||
| } | ||
|
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| flags := cmd.PersistentFlags() | ||
|
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| level = zap.LevelFlag("log-level", zap.DebugLevel, "Log level") | ||
| flags.AddGoFlag(flag.CommandLine.Lookup("log-level")) | ||
| flags.StringVar(&encoding, "log-encoding", "console", "Log encoding (console | json)") | ||
| flags.BoolVar(&tracing, "tracing", false, "Whether tracing is enabled") | ||
| flags.StringVar(&otelContext, "otel-context", "", "Open Telemetry context") | ||
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| flags.StringVar(&socket, "socket", "", "Unix domain socket path") | ||
| flags.UintVar(&timeout, "timeout", 0, "GRPC client timeout (ms)") | ||
|
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| _ = cmd.MarkFlagRequired("socket") | ||
|
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| cmd.AddCommand(NewCmdPopulate()) | ||
| cmd.AddCommand(NewCmdProbe()) | ||
|
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| return cmd | ||
| } | ||
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| func ClientExecute() { | ||
| ctx := context.Background() | ||
| cmd := NewCachedClientCommand() | ||
| err := cmd.ExecuteContext(ctx) | ||
|
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| client := client.FromContext(cmd.Context()) | ||
| if client != nil { | ||
| client.Close() | ||
| } | ||
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| if span != nil { | ||
| span.End() | ||
| } | ||
|
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| if shutdownTelemetry != nil { | ||
| shutdownTelemetry() | ||
| } | ||
|
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| _ = logger.Sync() | ||
|
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| if err != nil { | ||
| logger.Fatal(ctx, "command failed", zap.Error(err)) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| package cachedcli | ||
|
|
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| import ( | ||
| "github.com/gadget-inc/dateilager/internal/logger" | ||
| "github.com/gadget-inc/dateilager/pkg/client" | ||
| "github.com/spf13/cobra" | ||
| "go.uber.org/zap" | ||
| ) | ||
|
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| func NewCmdProbe() *cobra.Command { | ||
| cmd := &cobra.Command{ | ||
| Use: "probe", | ||
| RunE: func(cmd *cobra.Command, _ []string) error { | ||
| ctx := cmd.Context() | ||
| c := client.CachedFromContext(ctx) | ||
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| ready, err := c.Probe(ctx) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| logger.Info(ctx, "server probe", zap.Bool("ready", ready)) | ||
| return nil | ||
| }, | ||
| } | ||
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| return cmd | ||
| } |
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