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Signed-off-by: Shiming Zhang <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| /* | ||
| Copyright 2024 The Kubernetes Authors. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "os" | ||
|
|
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| "github.com/etcd-io/auger/pkg/augerctl" | ||
| ) | ||
|
|
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| func main() { | ||
| if err := augerctl.NewCtlCommand().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 +1,59 @@ | ||
| /* | ||
| Copyright 2024 The Kubernetes Authors. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| // Package augerctl is A simple command line client for directly access data objects stored in etcd by Kubernetes. | ||
| package augerctl | ||
|
|
||
| import ( | ||
| "github.com/spf13/cobra" | ||
|
|
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| "go.etcd.io/etcd/client/pkg/v3/transport" | ||
| ) | ||
|
|
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| type flagpole struct { | ||
| Endpoints []string | ||
|
|
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| InsecureSkipVerify bool | ||
| InsecureDiscovery bool | ||
| TLS transport.TLSInfo | ||
|
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| User string | ||
| Password string | ||
| } | ||
|
|
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| // NewCtlCommand returns a new cobra.Command for use ctl | ||
| func NewCtlCommand() *cobra.Command { | ||
| flags := &flagpole{} | ||
|
|
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| cmd := &cobra.Command{ | ||
| Use: "augerctl", | ||
| Short: "A simple command line client for directly access data objects stored in etcd by Kubernetes.", | ||
| } | ||
| cmd.PersistentFlags().StringSliceVar(&flags.Endpoints, "endpoints", []string{"127.0.0.1:2379"}, "gRPC endpoints") | ||
|
|
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| cmd.PersistentFlags().BoolVar(&flags.InsecureDiscovery, "insecure-discovery", true, "accept insecure SRV records describing cluster endpoints") | ||
| cmd.PersistentFlags().BoolVar(&flags.InsecureSkipVerify, "insecure-skip-tls-verify", false, "skip server certificate verification") | ||
| cmd.PersistentFlags().StringVar(&flags.TLS.CertFile, "cert", "", "identify secure client using this TLS certificate file") | ||
| cmd.PersistentFlags().StringVar(&flags.TLS.KeyFile, "key", "", "identify secure client using this TLS key file") | ||
| cmd.PersistentFlags().StringVar(&flags.TLS.TrustedCAFile, "cacert", "", "verify certificates of TLS-enabled secure servers using this CA bundle") | ||
| cmd.PersistentFlags().StringVar(&flags.User, "user", "", "username for authentication") | ||
| cmd.PersistentFlags().StringVar(&flags.Password, "password", "", "password for authentication") | ||
|
|
||
| cmd.AddCommand( | ||
| newCtlGetCommand(flags), | ||
| ) | ||
| return cmd | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,107 @@ | ||
| /* | ||
| Copyright 2024 The Kubernetes Authors. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package augerctl | ||
|
|
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| import ( | ||
| "context" | ||
| "fmt" | ||
| "os" | ||
|
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| "github.com/etcd-io/auger/pkg/client" | ||
| "github.com/spf13/cobra" | ||
| "k8s.io/apimachinery/pkg/runtime/schema" | ||
| ) | ||
|
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| type getFlagpole struct { | ||
| Namespace string | ||
| Output string | ||
| ChunkSize int64 | ||
| Prefix string | ||
| } | ||
|
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| func newCtlGetCommand(f *flagpole) *cobra.Command { | ||
| flags := &getFlagpole{} | ||
|
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| cmd := &cobra.Command{ | ||
| Args: cobra.RangeArgs(0, 2), | ||
| Use: "get [resource] [name]", | ||
| Short: "Gets the resource of Kubernetes in etcd", | ||
| RunE: func(cmd *cobra.Command, args []string) error { | ||
| etcdclient, err := clientFromCmd(f) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| err = getCommand(cmd.Context(), etcdclient, flags, args) | ||
|
|
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| if err != nil { | ||
| return fmt.Errorf("%v: %w", args, err) | ||
| } | ||
| return nil | ||
| }, | ||
| } | ||
|
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| cmd.Flags().StringVarP(&flags.Output, "output", "o", "yaml", "output format. One of: (yaml).") | ||
| cmd.Flags().StringVarP(&flags.Namespace, "namespace", "n", "", "namespace of resource") | ||
| cmd.Flags().Int64Var(&flags.ChunkSize, "chunk-size", 500, "chunk size of the list pager") | ||
| cmd.Flags().StringVar(&flags.Prefix, "prefix", "/registry", "prefix to prepend to the resource") | ||
|
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| return cmd | ||
| } | ||
|
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| func getCommand(ctx context.Context, etcdclient client.Client, flags *getFlagpole, args []string) error { | ||
| var targetGr schema.GroupResource | ||
| var targetName string | ||
| var targetNamespace string | ||
| if len(args) != 0 { | ||
| // TODO: Support get information from CRD and scheme.Codecs | ||
| // Support short name | ||
| // Check for namespaced | ||
|
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| gr := schema.ParseGroupResource(args[0]) | ||
| if gr.Empty() { | ||
| return fmt.Errorf("invalid resource %q", args[0]) | ||
| } | ||
| targetGr = gr | ||
| targetNamespace = flags.Namespace | ||
| if len(args) >= 2 { | ||
| targetName = args[1] | ||
| } | ||
| } | ||
|
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| printer := NewPrinter(os.Stdout, flags.Output) | ||
| if printer == nil { | ||
| return fmt.Errorf("invalid output format: %q", flags.Output) | ||
| } | ||
|
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| opOpts := []client.OpOption{ | ||
| client.WithName(targetName, targetNamespace), | ||
| client.WithGR(targetGr), | ||
| client.WithPageLimit(flags.ChunkSize), | ||
| client.WithResponse(printer.Print), | ||
| } | ||
|
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| // TODO: Support watch | ||
|
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| _, err := etcdclient.Get(ctx, flags.Prefix, | ||
| opOpts..., | ||
| ) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| /* | ||
| Copyright 2024 The Kubernetes Authors. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package augerctl | ||
|
|
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| import ( | ||
| "crypto/tls" | ||
|
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| "github.com/etcd-io/auger/pkg/client" | ||
|
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| clientv3 "go.etcd.io/etcd/client/v3" | ||
| ) | ||
|
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| func clientFromCmd(f *flagpole) (client.Client, error) { | ||
| cfg, err := clientConfigFromCmd(f) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| cli, err := clientv3.New(cfg) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| return client.NewClient(cli), nil | ||
| } | ||
|
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| func clientConfigFromCmd(f *flagpole) (clientv3.Config, error) { | ||
| cfg := clientv3.Config{ | ||
| Endpoints: f.Endpoints, | ||
| } | ||
|
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| if !f.TLS.Empty() { | ||
| clientTLS, err := f.TLS.ClientConfig() | ||
| if err != nil { | ||
| return clientv3.Config{}, err | ||
| } | ||
| cfg.TLS = clientTLS | ||
| } | ||
|
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| // if key/cert is not given but user wants secure connection, we | ||
| // should still setup an empty tls configuration for gRPC to setup | ||
| // secure connection. | ||
| if cfg.TLS == nil && !f.InsecureDiscovery { | ||
| cfg.TLS = &tls.Config{} | ||
| } | ||
|
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| // If the user wants to skip TLS verification then we should set | ||
| // the InsecureSkipVerify flag in tls configuration. | ||
| if cfg.TLS != nil && f.InsecureSkipVerify { | ||
| cfg.TLS.InsecureSkipVerify = true | ||
| } | ||
|
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| cfg.Username = f.User | ||
| cfg.Password = f.Password | ||
|
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| return cfg, nil | ||
| } |
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