OpenStack4j中怎么实现一个对外接口 ,相信很多没有经验的人对此束手无策,为此本文总结了问题出现的原因和解决方法,通过这篇文章希望你能解决这个问题。
在项目中增加maven依赖包
<dependency>
<groupId>org.pacesys</groupId>
<artifactId>openstack4j</artifactId>
<version>3.0.3</version>
<classifier>withdeps</classifier></dependency>
通过权限认证
import org.openstack4j.api.OSClient.OSClientV3;import org.openstack4j.openstack.OSFactory;import org.openstack4j.model.common.Identifier;
# use Identifier.byId("domainId") or Identifier.byName("example-domain")
Identifier domainIdentifier = Identifier.byId("domainId");
# unscoped authentication
# as the username is not unique across domains you need to provide the domainIdentifier
OSClientV3 os = OSFactory.builderV3()
.endpoint("http://127.0.0.1:5000/v3")
.credentials("admin","sample", domainIdentifier)
.authenticate();
# project scoped authentication
OSClientV3 os = OSFactory.builderV3()
.endpoint("http://127.0.0.1:5000/v3")
.credentials("admin", "secret", Identifier.byName("example-domain"))
.scopeToProject(Identifier.byId(projectIdentifier))
.authenticate();
# domain scoped authentication
# using the unique userId does not require a domainIdentifier
OSClientV3 os = OSFactory.builderV3()
.endpoint("http://127.0.0.1:5000/v3")
.credentials("userId", "secret")
.scopeToDomain(Identifier.byId(domainIdentifier))
.authenticate();
# Scoping to a project just by name isn't possible as the project name is only unique within a domain. # You can either use this as the id of the project is unique across domains OSClientV3 os = OSFactory.builderV3() .endpoint("http://127.0.0.1:5000/v3") .credentials("userId", "secret") .scopeToProject(Identifier.byName(projectName), Identifier.byName(domainName)) .authenticate(); # Or alternatively OSClientV3 os = OSFactory.builderV3() .endpoint("http://127.0.0.1:5000/v3") .credentials("userId", "secret") .scopeToDomain(Identifier.byName(domainName)) .authenticate();
常用模块调用
// Find all UsersList<? extends User> users = os.identity().users().list();// List all TenantsList<? extends Tenant> tenants = os.identity().tenants().list();// Find all Compute FlavorsList<? extends Flavor> flavors = os.compute().flavors().list();// Find all running ServersList<? extends Server> servers = os.compute().servers().list();// Suspend a Serveros.compute().servers().action("serverId", Action.SUSPEND);// List all NetworksList<? extends Network> networks = os.networking().network().list();// List all SubnetsList<? extends Subnet> subnets = os.networking().subnet().list();// List all RoutersList<? extends Router> routers = os.networking().router().list();// List all Images (Glance)List<? extends Image> images = os.images().list();// Download the Image DataInputStream is = os.images().getAsStream("imageId");
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