| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 command |
| |
| import ( |
| "errors" |
| "strconv" |
| "strings" |
| |
| "github.com/spf13/cobra" |
| ) |
| |
| type CreateOptions struct { |
| namespace string |
| cluster string |
| shard int |
| replica int |
| nodes []string |
| password string |
| } |
| |
| var createOptions CreateOptions |
| |
| var CreateCommand = &cobra.Command{ |
| Use: "create", |
| Short: "Create a resource", |
| Example: ` |
| # Create a namespace |
| kvctl create namespace <namespace> |
| |
| # Create a cluster in the namespace |
| kvctl create cluster <cluster> -n <namespace> --replica 1 --nodes 127.0.0.1:6379,127.0.0.1:6380,127.0.0.1:6381 |
| |
| # Create a shard in the cluster |
| kvctl create shard -n <namespace> -c <cluster> --nodes 127.0.0.1:6379,127.0.0.1:6380 |
| |
| # Create nodes in the cluster |
| kvctl create node 127.0.0.1:6379 -n <namespace> -c <cluster> --shard <shard> |
| `, |
| PreRunE: createPreRun, |
| RunE: func(cmd *cobra.Command, args []string) error { |
| host, _ := cmd.Flags().GetString("host") |
| client := newClient(host) |
| switch strings.ToLower(args[0]) { |
| case ResourceNamespace: |
| if len(args) < 2 { |
| return errors.New("missing namespace name") |
| } |
| return createNamespace(client, args[1]) |
| case ResourceCluster: |
| if len(args) < 2 { |
| return errors.New("missing cluster name") |
| } |
| createOptions.cluster = args[1] |
| return createCluster(client, &createOptions) |
| case ResourceShard: |
| return createShard(client, &createOptions) |
| case ResourceNode: |
| if len(args) < 2 { |
| return errors.New("missing node address") |
| } |
| createOptions.nodes = []string{args[1]} |
| return createNodes(client, &createOptions) |
| default: |
| return errors.New("unsupported resource type, please specify one of [namespace, cluster, shard, nodes]") |
| } |
| }, |
| SilenceUsage: true, |
| SilenceErrors: true, |
| } |
| |
| func createPreRun(_ *cobra.Command, args []string) error { |
| if len(args) == 0 { |
| return errors.New("missing resource type, please specify one of [namespace, cluster, shard, node]") |
| } |
| resource := strings.ToLower(args[0]) |
| if resource == ResourceNamespace { |
| return nil |
| } |
| if createOptions.namespace == "" { |
| return errors.New("missing namespace, please specify the namespace via -n or --namespace option") |
| } |
| if resource != ResourceNode && createOptions.nodes == nil { |
| return errors.New("missing nodes, please specify the nodes via --nodes option") |
| } |
| if resource == ResourceCluster { |
| return nil |
| } |
| if createOptions.cluster == "" { |
| return errors.New("missing cluster, please specify the cluster via -c or --cluster option") |
| } |
| if resource == ResourceShard { |
| return nil |
| } |
| if createOptions.shard == -1 { |
| return errors.New("missing shard, please specify the shard via -s or --shard option") |
| } |
| if createOptions.shard < 0 { |
| return errors.New("shard must be a positive number") |
| } |
| return nil |
| } |
| |
| func createNamespace(cli *client, name string) error { |
| rsp, err := cli.restyCli.R(). |
| SetBody(map[string]string{"namespace": name}). |
| Post("/namespaces") |
| if err != nil { |
| return err |
| } |
| |
| if rsp.IsError() { |
| return unmarshalError(rsp.Body()) |
| } |
| printLine("create namespace: %s successfully.", name) |
| return nil |
| } |
| |
| func createCluster(cli *client, options *CreateOptions) error { |
| rsp, err := cli.restyCli.R(). |
| SetPathParam("namespace", options.namespace). |
| SetBody(map[string]interface{}{ |
| "name": options.cluster, |
| "replicas": options.replica, |
| "nodes": options.nodes, |
| "password": options.password, |
| }). |
| Post("/namespaces/{namespace}/clusters") |
| if err != nil { |
| return err |
| } |
| |
| if rsp.IsError() { |
| return unmarshalError(rsp.Body()) |
| } |
| printLine("create cluster: %s successfully.", options.cluster) |
| return nil |
| } |
| |
| func createShard(cli *client, options *CreateOptions) error { |
| rsp, err := cli.restyCli.R(). |
| SetPathParam("namespace", options.namespace). |
| SetPathParam("cluster", options.cluster). |
| SetBody(map[string]interface{}{ |
| "name": options.cluster, |
| "nodes": options.nodes, |
| "password": options.password, |
| }). |
| Post("/namespaces/{namespace}/clusters/{cluster}/shards") |
| if err != nil { |
| return err |
| } |
| |
| if rsp.IsError() { |
| return unmarshalError(rsp.Body()) |
| } |
| printLine("create the new shard successfully.") |
| return nil |
| } |
| |
| func createNodes(cli *client, options *CreateOptions) error { |
| rsp, err := cli.restyCli.R(). |
| SetPathParam("namespace", options.namespace). |
| SetPathParam("cluster", options.cluster). |
| SetPathParam("shard", strconv.Itoa(options.shard)). |
| SetBody(map[string]interface{}{ |
| "addr": options.nodes[0], |
| "password": options.password, |
| }). |
| Post("/namespaces/{namespace}/clusters/{cluster}/shards/{shard}/nodes") |
| if err != nil { |
| return err |
| } |
| |
| if rsp.IsError() { |
| return unmarshalError(rsp.Body()) |
| } |
| printLine("create node: %v successfully.", options.nodes[0]) |
| return nil |
| } |
| |
| func init() { |
| CreateCommand.Flags().StringVarP(&createOptions.namespace, "namespace", "n", "", "The namespace") |
| CreateCommand.Flags().StringVarP(&createOptions.cluster, "cluster", "c", "", "The cluster") |
| CreateCommand.Flags().IntVarP(&createOptions.shard, "shard", "s", -1, "The shard number") |
| CreateCommand.Flags().IntVarP(&createOptions.replica, "replica", "r", 1, "The replica number") |
| CreateCommand.Flags().StringSliceVarP(&createOptions.nodes, "nodes", "", nil, "The node list") |
| CreateCommand.Flags().StringVarP(&createOptions.password, "password", "", "", "The password") |
| } |