轉載自http://www.cnblogs.com/juandx/p/4943409.html
一、使用curl命名來使用openstack的api
當然，首先你得有個openstack的環境，我是自己搭建的kilo，我們先用curl來使用api，注意自己改一下ip還有用戶名和密碼，下面這個命令就會得到一個令牌(token)來使用，以後調用api就需要使用這個令牌。
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curl
-k -X 'POST' -v
http://controller_ip:5000/v2.0/tokens
-d '{"auth":{"passwordCredentials":{"username": "ADMIN", "password":"MY_PASSWORD"}}}' -H 'Content-type: application/json' | python -mjson.tool |
這樣後會得到如下的json數據
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{ "access":
{ "metadata":
{ "is_admin":
0, "roles":
[] }, "serviceCatalog":
[], "token":
{ "audit_ids":
[ "WPon6i60TamUfqcsPV2oVg" ], "expires": "2015-11-06T11:19:19Z", "id": "bc422dc370324535a64699640f50a3ab",//這個id就是令牌(token) "issued_at": "2015-11-06T10:19:19.559266" }, "user":
{ "id": "9c20d9fe21a14741ac1486b2db058bd5", "name": "admin", "roles":
[], "roles_links":
[], "username": "admin" } }} |
下面得到這個用戶的所有項目(tenant)，注意下面的token就是剛剛得到的那個令牌
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curl
-X 'GET' -H "X-Auth-Token:bc422dc370324535a64699640f50a3ab" -v
http://controller_ip:5000/v2.0/tenants
| python -mjson.tool |
這裏面得到這個用戶的項目(tenant)
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{ "tenants":
[ { "description": null, "enabled": true, "id": "92afd13a680645c191a2aab7422a7a3b", "name": "AIM" }, { "description": null, "enabled": true, "id": "b3457999de4d4add99e89f4f299f5857", "name": "ECM" }, { "description": "Admin
Project", "enabled": true, "id": "de8f43bfe4244a1aa315a70a43248d60", "name": "admin" }, { "description": null, "enabled": true, "id": "f3c1015ff67e4cd18b022b9b51eb1123", "name": "IM" }, { "description": null, "enabled": true, "id": "fae79b8f91b944b985d2b35373cf9bb2", "name": "Commerce" } ], "tenants_links":
[]} |
可以看到我這裏ADMIN用戶總共有5個tenant，我們選取一個即可，就選取名爲admin的項目，id看到爲de8f43bfe4244a1aa315a70a43248d60
接下來我們去一個項目(tenant)看看它的虛擬機、等信息。
首先需要得到這個tenant的令牌信息，注意這個token和上面的那個不一樣
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curl
-k -X 'POST' -v
http://controller_ip:5000/v2.0/tokens
-d '{"auth":{"passwordCredentials":{"username": "ADMIN", "password":"MY_PASSWORD"},"tenantId":"de8f43bfe4244a1aa315a70a43248d60"}}' -H 'Content-type: application/json' | python -mjson.tool |
注意這裏看到用戶名和密碼還是和之前一樣，但是多了一個tenantId的字段，這裏說明了我們需要的是ADMIN用戶下的這個項目的令牌，得到如下信息：
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{ "access":
{ "metadata":
{ "is_admin":
0, "roles":
[ "cf87d1b66b044cdd94972d72d6e4d474" ] }, "serviceCatalog":
[ { "endpoints":
[ { "adminURL": "http://controller:9292", "id": "5f892fde3a2241c989355cdd6beea4b5", "internalURL": "http://controller:9292", "publicURL": "http://controller:9292", "region": "RegionOne" } ], "endpoints_links":
[], "name": "glance", "type": "image" }, { "endpoints":
[ { "adminURL": "http://controller:8774/v2/de8f43bfe4244a1aa315a70a43248d60", "id": "0c52d8a741f740a6b83be51ae7082b62", "internalURL": "http://controller:8774/v2/de8f43bfe4244a1aa315a70a43248d60", "publicURL": "http://controller:8774/v2/de8f43bfe4244a1aa315a70a43248d60", "region": "RegionOne" } ], "endpoints_links":
[], "name": "nova", "type": "compute" }, { "endpoints":
[ { "adminURL": "http://controller:9696", "id": "3d70017df8ee40d698988ad52b25cc8e", "internalURL": "http://controller:9696", "publicURL": "http://controller:9696", "region": "RegionOne" } ], "endpoints_links":
[], "name": "neutron", "type": "network" }, { "endpoints":
[ { "adminURL": "http://controller:35357/v2.0", "id": "23bb295b14554d2b89535d67632e7c60", "internalURL": "http://controller:5000/v2.0", "publicURL": "http://controller:5000/v2.0", "region": "RegionOne" } ], "endpoints_links":
[], "name": "keystone", "type": "identity" } ], "token":
{ "audit_ids":
[ "XNBLV1ohSXensbuHqwTo3Q" ], "expires": "2015-11-06T11:29:22Z", "id": "b1470e1f13284a8b8f979eb652e29db5", "issued_at": "2015-11-06T10:29:22.423828", "tenant":
{ "description": "Admin
Project", "enabled": true, "id": "de8f43bfe4244a1aa315a70a43248d60", "name": "admin" } }, "user":
{ "id": "9c20d9fe21a14741ac1486b2db058bd5", "name": "admin", "roles":
[ { "name": "admin" } ], "roles_links":
[], "username": "admin" } }} |
這裏面有很多關於這個tenant的信息，其中最重要的是token的id，爲b1470e1f13284a8b8f979eb652e29db5，這是我們後面調取api需要的，還有注意de8f43bfe4244a1aa315a70a43248d60是tenant_id。
接下來我們開始看看這個項目裏面的虛擬機
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curl
-v -H "X-Auth-Token:b1470e1f13284a8b8f979eb652e29db5" http://controller_ip:8774/v2/tenant_id/servers |
把得到的令牌寫好，執行後得到如下信息：
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{ "servers":
[ { "id": "098982e0-251d-4306-9171-f4d52674fde3", "links":
[ { "href": "http://9.111.222.23:8774/v2/de8f43bfe4244a1aa315a70a43248d60/servers/098982e0-251d-4306-9171-f4d52674fde3", "rel": "self" }, { "href": "http://9.111.222.23:8774/de8f43bfe4244a1aa315a70a43248d60/servers/098982e0-251d-4306-9171-f4d52674fde3", "rel": "bookmark" } ], "name": "vm2" }, { "id": "86baaddc-3c3e-4687-87bc-2e22f53eb7ba", "links":
[ { "href": "http://9.111.222.23:8774/v2/de8f43bfe4244a1aa315a70a43248d60/servers/86baaddc-3c3e-4687-87bc-2e22f53eb7ba", "rel": "self" }, { "href": "http://9.111.222.23:8774/de8f43bfe4244a1aa315a70a43248d60/servers/86baaddc-3c3e-4687-87bc-2e22f53eb7ba", "rel": "bookmark" } ], "name": "vm1" } ]} |
這裏可以明顯看到有兩個虛擬機，分別爲vm1和vm2，這都是我之前創建的。
再看看我的image有哪些
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curl
-v -H "X-Auth-Token:b1470e1f13284a8b8f979eb652e29db5" http://controller_ip:8774/v2/de8f43bfe4244a1aa315a70a43248d60/images
| python -mjson.tool |
執行後得到以下信息
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{ "images":
[ { "id": "cfa488bb-f5aa-4f67-830c-6d84a1b0f062", "links":
[ { "href": "http://9.111.222.23:8774/v2/de8f43bfe4244a1aa315a70a43248d60/images/cfa488bb-f5aa-4f67-830c-6d84a1b0f062", "rel": "self" }, { "href": "http://9.111.222.23:8774/de8f43bfe4244a1aa315a70a43248d60/images/cfa488bb-f5aa-4f67-830c-6d84a1b0f062", "rel": "bookmark" }, { "href": "http://controller:9292/images/cfa488bb-f5aa-4f67-830c-6d84a1b0f062", "rel": "alternate", "type": "application/vnd.openstack.image" } ], "name": "windows7-x86_64-bpm20150724" }, { "id": "5c997a18-3f93-41bb-8ce2-724b10d0d418", "links":
[ { "href": "http://9.111.222.23:8774/v2/de8f43bfe4244a1aa315a70a43248d60/images/5c997a18-3f93-41bb-8ce2-724b10d0d418", "rel": "self" }, { "href": "http://9.111.222.23:8774/de8f43bfe4244a1aa315a70a43248d60/images/5c997a18-3f93-41bb-8ce2-724b10d0d418", "rel": "bookmark" }, { "href": "http://controller:9292/images/5c997a18-3f93-41bb-8ce2-724b10d0d418", "rel": "alternate", "type": "application/vnd.openstack.image" } ], "name": "rhel7.1" }, { "id": "e1c3cc65-54ae-4a76-9646-2d4dc3b7473b", "links":
[ { "href": "http://9.111.222.23:8774/v2/de8f43bfe4244a1aa315a70a43248d60/images/e1c3cc65-54ae-4a76-9646-2d4dc3b7473b", "rel": "self" }, { "href": "http://9.111.222.23:8774/de8f43bfe4244a1aa315a70a43248d60/images/e1c3cc65-54ae-4a76-9646-2d4dc3b7473b", "rel": "bookmark" }, { "href": "http://controller:9292/images/e1c3cc65-54ae-4a76-9646-2d4dc3b7473b", "rel": "alternate", "type": "application/vnd.openstack.image" } ], "name": "cirros-0.3.4-x86_64" } ]} |
可以看到我一共有3個鏡像
至此，其他api查看文檔進行查看即可，都是相似的方法，這裏僅作一個簡單介紹。
二、使用火狐firefox 的 restclient 工具來 使用 openstack的api
下面我還嘗試了一些Firefox的restclient，來調取api
當然需要打開火狐瀏覽器安裝restclient的插件https://addons.mozilla.org/en-US/firefox/addon/restclient/，當然使用java的客戶端也可以http://code.google.com/p/rest-client/
這裏演示兩個rest的方法來使用，get和post
先看看post：
我們來取一個ADMIN用戶的admin的tenant的令牌。
對比下curl的命令
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curl
-k -X 'POST' -v
http://controller_ip:5000/v2.0/tokens
-d '{"auth":{"passwordCredentials":{"username": "ADMIN", "password":"MY_PASSWORD"},"tenantId":"de8f43bfe4244a1aa315a70a43248d60"}}' -H 'Content-type: application/json' | python -mjson.tool |
先設置http的header ，name爲 Content-Type ，value爲 application/json
設置好後輸入網址http://controller_ip:5000/v2.0/tokens，並且把要post的json的數據寫入到body裏面，最後點擊按鈕SEND即可，可以得到和curl一樣的json數據
接下來試試使用get的方法
我們得到了tenant的token，就可以使用get方法獲取其虛擬機的信息
注意要先設置token在header中，name爲X-Auth-Token，value爲token,然後輸入網址，選擇爲get方法，點擊SEND即可得到：
其他的api幾乎都是get和post的方法，這裏簡單演示了firefox的restclient的用法，希望大家多多指教
參考資料：
openstack quick start api:http://docs.openstack.org/zh_CN/api/quick-start/content/index.html
openstack api document:http://developer.openstack.org/api-ref.html