OpenStack4j访问OpenStack Q版本的Identity服务v2.0

谁借莪１个温暖的怀抱￠ 2022-05-09 01:06 196阅读 0赞

OpenStack4j简洁易用，项目中一直使用方便，构造OS如下：

OSClientV2 os = OSFactory
        .builderV2()
        .endpoint(cred.getCloudURI())
        .credentials(cred.getUsername(), cred.getPassword())
        .tenantName(cred.getProject())
        .withConfig(
            Config.newConfig()
                .withConnectionTimeout(1000 * 60)
                .withReadTimeout(1000 * 60 * 5))
        .authenticate();

近期用于访问OpenStack却发生如下异常：

2018-09-28 11:30:02 DEBUG HttpExecutor:50 - Executing Request: https://my-openstack-cloud:5000/v2.0 -> /tokens
    Exception in thread "main" ClientResponseException{message=Not Found, status=404, status-code=NOT_FOUND}
    	at org.openstack4j.core.transport.HttpExceptionHandler.mapException(HttpExceptionHandler.java:38)
    	at org.openstack4j.core.transport.HttpExceptionHandler.mapException(HttpExceptionHandler.java:23)
    	at org.openstack4j.openstack.internal.OSAuthenticator.authenticateV2(OSAuthenticator.java:125)
    	at org.openstack4j.openstack.internal.OSAuthenticator.invoke(OSAuthenticator.java:52)
    	at org.openstack4j.openstack.client.OSClientBuilder$ClientV2.authenticate(OSClientBuilder.java:117)
    	at org.openstack4j.openstack.client.OSClientBuilder$ClientV2.authenticate(OSClientBuilder.java:79)

在调试过程中，执行如下命令，得到熟悉的响应（从OpenStack M版本开始）：

> curl https://my-openstack-cloud:5000/
    {
    	"versions": {
    		"values": [{
    			"status": "stable",
    			"updated": "2018-02-28T00:00:00Z",
    			"media-types": [{
    				"base": "application/json",
    				"type": "application/vnd.openstack.identity-v3+json"
    			}],
    			"id": "v3.10",
    			"links": [{
    				"href": "https://my-openstack-cloud:5000/v3/",
    				"rel": "self"
    			}]
    		}, {
    			"status": "deprecated",
    			"updated": "2016-08-04T00:00:00Z",
    			"media-types": [{
    				"base": "application/json",
    				"type": "application/vnd.openstack.identity-v2.0+json"
    			}],
    			"id": "v2.0",
    			"links": [{
    				"href": "https://my-openstack-cloud:5000/v2.0/",
    				"rel": "self"
    			}, {
    				"href": "https://docs.openstack.org/",
    				"type": "text/html",
    				"rel": "describedby"
    			}]
    		}]
    	}
    }

在确定OpenStack4j访问已有Cloud正常的情况下，怀疑是OpenStack的问题。

查看部署的OpenStack采用了OpenStack Q版本，恍然大悟。

通过OpenStack Q版本文档可知，对于OpenStack Queens及其之后版本：

*  只有Keystone /v3有效
 *  Keystone /v2.0的主要功能已经被移除
 *  仅保留Keystone /v2.0的ec2tokens API到OpenStack T版本

截图如下：

![70][]

使用Keystone v3运行通过，代码如下：

OSClientV3 os = OSFactory
        .builderV3()
        .endpoint(cred.getCloudURI())
        .credentials(cred.getUsername(), cred.getPassword(), Identifier.byName(cred.getDomain()))
        .scopeToProject(Identifier.byName(cred.getProject()), Identifier.byName(cred.getDomain()))
        .withConfig(
            Config.newConfig()
                .withConnectionTimeout(1000 * 60)
                .withReadTimeout(1000 * 60 * 5))
        .authenticate();

参考链接：

[http://www.openstack4j.com/learn][http_www.openstack4j.com_learn]  
    https://docs.openstack.org/keystone/latest/api\_curl\_examples.html  
    https://docs.openstack.org/keystone/pike/api\_curl\_examples.html

[70]: /images/20220509/f2536a7a31054029a8ac8b430bc5be4a.png
[http_www.openstack4j.com_learn]: http://www.openstack4j.com/learn