python-cloudlb 0.6.2

用法

目前没有太多文档，只是一些快速的典型用法 可以使用此库执行的脚本。这是基于最新版本的：

http://docs.rackspacecloud.com/loadbalancers/api/clb-devguide-latest.pdf

创建负载均衡器：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

node1 = cloudlb.Node(address="10.180.160.131",
                     port=80,
                     condition="ENABLED")


virtualIP1 = cloudlb.VirtualIP(
                 type="PUBLIC")

clb.loadbalancers.create(name="mytestinglb",
                         port=80,
                         protocol="HTTP",
                         nodes=[node1],
                         virtualIps=[virtualIp1])

列出负载平衡器：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
for lb in lbs:
    print "%s has %s node attached with IP addresses:" % (lb.name, len(lb.nodes))
    for ip in lb.virtualIps:
        print "%s/%s" % (ip.ipVersion, ip.address)

列出具有属于它的节点的负载平衡器：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

ip = '10.1.1.1'
lbs = clb.loadbalancers.search(ip)
for lb in lbs:
    print "%s has %s node attached" % (lb.name, ip))

按ID获取LB:

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")
clb.authenticate()

lb = clb.loadbalancers.get(LoadBalancerID)

删除lb:

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lb = clb.loadbalancers.get(LoadBalancerID)
lb.delete()

列出lb的节点：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
lb = lbs[0] #get the first one
nodes=lb.nodes.filter(status='ENABLED')
for node in nodes:
    print node.address

通过lb条件过滤节点：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
lb = lbs[0] #get the first one
for node in lb.nodes:
    print node.address

将节点添加到lb:

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

newnode =  cloudlb.Node(address="10.180.160.131",
                        port=80,
                        condition="ENABLED")

lbs = clb.loadbalancers.list()
lb = lbs[0] #add to the first one

lb.add_nodes([newnode])

从lb中删除节点：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
lb = lbs[0] #add to the first one

node = lb.nodes[0] #get the first node

node.delete() #delete it

更新节点的属性：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
mylb = lbs[0] #add to the first one

nodeid = 14106
nodes = mylb.nodes
node = mylb.nodes.get(nodeid)
toggle_status = node.condition == "ENABLED" and "DISABLED" or "ENABLED"
node.condition = toggle_status
node.update()

使用.get（）获取节点的权重：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
mylb = lbs[0] #add to the first one

nodeid = 14106
nodes = mylb.nodes
node = mylb.nodes.get(nodeid)
print node.weight

更新loadbalancer上的属性：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
mylb = lbs[0] #first lb

mylb.protocol = "FTP"
mylb.name = "APrettyNewName"

mylb.update()

获取所有负载平衡器的使用统计信息：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

print clb.get_usage()

获取特定负载平衡器的使用统计信息：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
mylb = lbs[0] #first lb

print mylb.get_usage()

获取特定负载平衡器的实时统计信息：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
mylb = lbs[0] #first lb

print mylb.get_stats()

获取所有负载平衡器的限制：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

print clb.get_limits()

获取负载平衡算法：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

print clb.get_algorithms()

获取负载平衡协议：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

print clb.get_protocols()

获取当前运行状况监视器：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
mylb = lbs[0] #first lb

hm_monitor = mylb.healthmonitor()
print hm_monitor.get()

使用简单的TCP连接监视负载平衡器：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
mylb = lbs[0] #first lb

hm_monitor = mylb.healthmonitor()
hm = cloudlb.healthmonitor.HealthMonitor(
  type="CONNECT",
  delay=10,
  timeout=10,
  attemptsBeforeDeactivation=3)

hm_monitor.add(hm)

使用http监视loadbalancer:

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
mylb = lbs[0] #first lb

hm_monitor = mylb.healthmonitor()
hm = cloudlb.healthmonitor.HealthMonitor(
    type="HTTP", #or HTTPS
    delay=10,
    timeout=10,
    attemptsBeforeDeactivation=3,
    path="/",
    statusRegex="^[234][0-9][0-9]$",
    bodyRegex="testing")
hm_monitor.add(hm)

删除运行状况监视器规则：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
mylb = lbs[0] #first lb

hm_monitor = mylb.healthmonitor()
hm_monitor.delete()

添加http cookie会话持久性：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
mylb = lbs[0] #first lb

ss = cloudlb.sessionpersistence.SessionPersistence(persistenceType="HTTP_COOKIE")

ssp = mylb.session_persistence()
ssp.add(ss)

获取会话持久性：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
mylb = lbs[0] #first lb

ssp = mylb.session_persistence()
print ssp.get()

删除会话持久性配置：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
mylb = lbs[0] #first lb

ssp = mylb.session_persistence()
ssp.delete()

启用/禁用连接日志记录：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
mylb = lbs[0] #first lb
cl = mylb.connection_logging()

#Get connection logging status
print cl.get()

#Enable connection logging
cl.enable()

#Disable connection logging
cl.disable()

访问列表：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
mylb = lbs[0] #first lb
accesslist = mylb.accesslist()

networkItem1 = cloudlb.accesslist.NetworkItem(
    address="10.20.30.40", type="ALLOW")

networkItem2 = cloudlb.accesslist.NetworkItem(
    address="0.0.0.0/0", type="DENY")

# Allow only 10.20.30.40
accesslist.add([networkItem1, networkItem2])

# List accesslists
print accesslist.list()

# Delete all accesslist
accesslist.delete()

# Delete accesslist by ID
accesslist.delete(id=62)

自定义错误页：

#!/usr/bin/python
import cloudlb
clb = cloudlb.CloudLoadBalancer("username", "apikey","chicago")

lbs = clb.loadbalancers.list()
mylb = lbs[0] #first lb
errorpage = mylb.errorpage()

# Display current error page
print errorpage.get()

# Change the error page
errorpage.add('<html><body><h1>Error</h1></body></html>')

# Revert to the default error page
errorpage.delete()

许可证

有关许可证信息，请参见复制。版权所有©2011，Rackspace US，Inc.

作者

chmouel boudjnah<；chmouel@chmouel.com>；