# 手动执行签名策略 - ExecuteInstanceSignPolicy
#### 功能介绍
手动执行签名策略
#### 接口约束
无
#### 调用方法
请参见[如何调用API](https://support.huaweicloud.com/api-swr2/swr_02_0002.html)。
#### 授权信息
账号具备所有API的调用权限，如果使用账号下的IAM用户调用当前API，该IAM用户需具备调用API所需的权限。
- 如果使用角色与策略授权，具体权限要求请参见[权限和授权项](https://support.huaweicloud.com/api-swr2/swr_02_0131.html)。
- 如果使用身份策略授权，需具备如下身份策略权限。
  
  | 授权项                              | 访问级别  | 资源类型（\*为必须）   | 条件键                                                                                                                                                                                                                                                                                                                 | 别名 | 依赖的授权项 |
  |:---|:---|:---|:---|:---|:---|
  | swr:repository:executeSignPolicy | Write | repository \* | - g:ResourceTag/\<tag-key\>   - g:EnterpriseProjectId    | -  | -      |
     
  
 
#### URI
POST /v2/{project_id}/instances/{instance_id}/namespaces/{namespace_name}/signature/policies/{policy_id}/executions
表1路径参数 
| 参数             | 是否必选 | 参数类型    | 描述       |
|:---|:---|:---|:---|
| project_id     | 是    | String  | 项目ID     |
| instance_id    | 是    | String  | 企业仓库实例ID |
| namespace_name | 是    | String  | 命名空间名称   |
| policy_id      | 是    | Integer | 策略ID     |
   
#### 请求参数
表2请求Header参数 
| 参数           | 是否必选 | 参数类型   | 描述                                                                                       |
|:---|:---|:---|:---|
| X-Auth-Token | 是    | String | 用户Token。 通过调用IAM服务获取用户Token接口获取（响应消息头中X-Subject-Token的值）。 |
   
#### 响应参数
**状态码：202**
表3响应Body参数 
| 参数 | 参数类型    | 描述   |
|:---|:---|:---|
| id | Integer | 执行ID |
   
**状态码：400**
表4响应Body参数 
| 参数                            | 参数类型   | 描述                                                           |
|:---|:---|:---|
| error_code                    | String | 错误码                                                          |
| error_msg                     | String | 错误信息                                                         |
| encoded_authorization_message | String | 加密后的详细拒绝原因，用户可以自行调用STS服务的decode-authorization-message接口进行解密。 |
   
**状态码：401**
表5响应Body参数 
| 参数                            | 参数类型   | 描述                                                           |
|:---|:---|:---|
| error_code                    | String | 错误码                                                          |
| error_msg                     | String | 错误信息                                                         |
| encoded_authorization_message | String | 加密后的详细拒绝原因，用户可以自行调用STS服务的decode-authorization-message接口进行解密。 |
   
**状态码：403**
表6响应Body参数 
| 参数                            | 参数类型   | 描述                                                           |
|:---|:---|:---|
| error_code                    | String | 错误码                                                          |
| error_msg                     | String | 错误信息                                                         |
| encoded_authorization_message | String | 加密后的详细拒绝原因，用户可以自行调用STS服务的decode-authorization-message接口进行解密。 |
   
**状态码：404**
表7响应Body参数 
| 参数                            | 参数类型   | 描述                                                           |
|:---|:---|:---|
| error_code                    | String | 错误码                                                          |
| error_msg                     | String | 错误信息                                                         |
| encoded_authorization_message | String | 加密后的详细拒绝原因，用户可以自行调用STS服务的decode-authorization-message接口进行解密。 |
   
**状态码：500**
表8响应Body参数 
| 参数                            | 参数类型   | 描述                                                           |
|:---|:---|:---|
| error_code                    | String | 错误码                                                          |
| error_msg                     | String | 错误信息                                                         |
| encoded_authorization_message | String | 加密后的详细拒绝原因，用户可以自行调用STS服务的decode-authorization-message接口进行解密。 |
   
#### 请求示例
```
POST https://{endpoint}/v2/{project_id}/instances/{instance_id}/namespaces/{namespace_name}/signature/policies/{policy_id}/executions
```
#### 响应示例
**状态码：202**
执行策略成功
```
{
  "id" : 34
}
```
#### SDK代码示例
SDK代码示例如下。
- [Java]
  ```
  package com.huaweicloud.sdk.test;
  import com.huaweicloud.sdk.core.auth.ICredential;
  import com.huaweicloud.sdk.core.auth.BasicCredentials;
  import com.huaweicloud.sdk.core.exception.ConnectionException;
  import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
  import com.huaweicloud.sdk.core.exception.ServiceResponseException;
  import com.huaweicloud.sdk.swr.v2.region.SwrRegion;
  import com.huaweicloud.sdk.swr.v2.*;
  import com.huaweicloud.sdk.swr.v2.model.*;
  public class ExecuteInstanceSignPolicySolution {
      public static void main(String[] args) {
          // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
          // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
          String ak = System.getenv("CLOUD_SDK_AK");
          String sk = System.getenv("CLOUD_SDK_SK");
          String projectId = "{project_id}";
          ICredential auth = new BasicCredentials()
                  .withProjectId(projectId)
                  .withAk(ak)
                  .withSk(sk);
          SwrClient client = SwrClient.newBuilder()
                  .withCredential(auth)
                  .withRegion(SwrRegion.valueOf("<YOUR REGION>"))
                  .build();
          ExecuteInstanceSignPolicyRequest request = new ExecuteInstanceSignPolicyRequest();
          request.withInstanceId("{instance_id}");
          request.withNamespaceName("{namespace_name}");
          request.withPolicyId({policy_id});
          try {
              ExecuteInstanceSignPolicyResponse response = client.executeInstanceSignPolicy(request);
              System.out.println(response.toString());
          } catch (ConnectionException e) {
              e.printStackTrace();
          } catch (RequestTimeoutException e) {
              e.printStackTrace();
          } catch (ServiceResponseException e) {
              e.printStackTrace();
              System.out.println(e.getHttpStatusCode());
              System.out.println(e.getRequestId());
              System.out.println(e.getErrorCode());
              System.out.println(e.getErrorMsg());
          }
      }
  }
  ```
- [Python]
  ```
  # coding: utf-8
  import os
  from huaweicloudsdkcore.auth.credentials import BasicCredentials
  from huaweicloudsdkswr.v2.region.swr_region import SwrRegion
  from huaweicloudsdkcore.exceptions import exceptions
  from huaweicloudsdkswr.v2 import *
  if __name__ == "__main__":
      # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
      # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
      ak = os.environ["CLOUD_SDK_AK"]
      sk = os.environ["CLOUD_SDK_SK"]
      projectId = "{project_id}"
      credentials = BasicCredentials(ak, sk, projectId)
      client = SwrClient.new_builder() \
          .with_credentials(credentials) \
          .with_region(SwrRegion.value_of("<YOUR REGION>")) \
          .build()
      try:
          request = ExecuteInstanceSignPolicyRequest()
          request.instance_id = "{instance_id}"
          request.namespace_name = "{namespace_name}"
          request.policy_id = {policy_id}
          response = client.execute_instance_sign_policy(request)
          print(response)
      except exceptions.ClientRequestException as e:
          print(e.status_code)
          print(e.request_id)
          print(e.error_code)
          print(e.error_msg)
  ```
- [Go]
  ```
  package main
  import (
  "fmt"
  "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
      swr "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/swr/v2"
  "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/swr/v2/model"
      region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/swr/v2/region"
  )
  func main() {
      // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
      // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
      ak := os.Getenv("CLOUD_SDK_AK")
      sk := os.Getenv("CLOUD_SDK_SK")
      projectId := "{project_id}"
      auth, err := basic.NewCredentialsBuilder().
          WithAk(ak).
          WithSk(sk).
          WithProjectId(projectId).
          SafeBuild()
      if err != nil {
          fmt.Println(err)
          return
      }
      hcClient, err := swr.SwrClientBuilder().
           WithRegion(region.ValueOf("<YOUR REGION>")).
           WithCredential(auth).
           SafeBuild()
      if err != nil {
          fmt.Println(err)
          return
      }
      client := swr.NewSwrClient(hcClient)
      request := &model.ExecuteInstanceSignPolicyRequest{}
  request.InstanceId = "{instance_id}"
  request.NamespaceName = "{namespace_name}"
  request.PolicyId = int32({policy_id})
  response, err := client.ExecuteInstanceSignPolicy(request)
  if err == nil {
          fmt.Printf("%+v\n", response)
      } else {
          fmt.Println(err)
      }
  }
  ```
- [更多]
  更多编程语言的SDK代码示例，请参见[API Explorer](https://console.huaweicloud.com/apiexplorer/#/openapi/SWR/sdk?api=ExecuteInstanceSignPolicy)的代码示例页签，可生成自动对应的SDK代码示例。
#### 状态码
| 状态码 | 描述     |
|:---|:---|
| 202 | 执行策略成功 |
| 400 | 错误的请求  |
| 401 | 鉴权失败   |
| 403 | 禁止访问   |
| 404 | 未找到资源  |
| 500 | 内部错误   |
   
#### 错误码
请参见[错误码](https://support.huaweicloud.com/api-swr2/ErrorCode.html)。