我有一个ARM模板，我设置了一个负载均衡器，我想通过向LB添加规则和探测来添加一些端口。
这是我到目前为止的模板：
{
"type": "Microsoft.Network/loadBalancers",
"name": "LB-front",
"apiVersion": "2016-03-30",
"location": "westeurope",
"tags": { },
"properties": {
"frontendIPConfigurations": [
{
"name": "LoadBalancerIPConfig",
"properties": {
"privateIPAllocationMethod": "Dynamic",
"publicIPAddress": {
"id": "[resourceId('Microsoft.Network/publicIPAddresses', parameters('publicIPAddresses_lbipdev_0_name'))]"
}
}
}
],
"backendAddressPools": [
{
"name": "LoadBalancerBEAddressPool"
}
],
"loadBalancingRules": [
{
"name": "AppPortLBRule1",
"properties": {
"frontendIPConfiguration": {
"id": "[parameters('loadBalancers_LB_dev_id_6')]"
},
"frontendPort": 80,
"backendPort": 80,
"enableFloatingIP": false,
"idleTimeoutInMinutes": 5,
"protocol": "Tcp",
"loadDistribution": "Default",
"backendAddressPool": {
"id": "[parameters('loadBalancers_LB_dev_id_7')]"
},
"probe": {
"id": "[parameters('loadBalancers_LB_dev_id_8')]"
}
}
},
{
"name": "AppPortLBRule2",
"properties": {
"frontendIPConfiguration": {
"id": "[parameters('loadBalancers_LB_dev_id_9')]"
},
"frontendPort": 81,
"backendPort": 81,
"enableFloatingIP": false,
"idleTimeoutInMinutes": 5,
"protocol": "Tcp",
"loadDistribution": "Default",
"backendAddressPool": {
"id": "[parameters('loadBalancers_LB_dev_id_10')]"
},
"probe": {
"id": "[parameters('loadBalancers_LB_dev_id_11')]"
}
}
},
{
"name": "AppPortLBRule3",
"properties": {
"frontendIPConfiguration": {
"id": "[parameters('loadBalancers_LB_dev_id_12')]"
},
"frontendPort": 82,
"backendPort": 82,
"enableFloatingIP": false,
"idleTimeoutInMinutes": 5,
"protocol": "Tcp",
"loadDistribution": "Default",
"backendAddressPool": {
"id": "[parameters('loadBalancers_LB_dev_id_13')]"
},
"probe": {
"id": "[parameters('loadBalancers_LB_dev_id_14')]"
}
}
}
],
"probes": [
{
"name": "AppPortProbe1",
"properties": {
"protocol": "Tcp",
"port": 80,
"intervalInSeconds": 5,
"numberOfProbes": 2
}
},
{
"name": "AppPortProbe2",
"properties": {
"protocol": "Tcp",
"port": 81,
"intervalInSeconds": 5,
"numberOfProbes": 2
}
},
{
"name": "AppPortProbe3",
"properties": {
"protocol": "Tcp",
"port": 82,
"intervalInSeconds": 5,
"numberOfProbes": 2
}
}
],
"inboundNatRules": [],
"outboundNatRules": [],
"inboundNatPools": []
},
"resources": [],
"dependsOn": [
"[resourceId('Microsoft.Network/publicIPAddresses', parameters('publicIPAddresses_lbipdev_1_name'))]"
]
},
（省略一些细节）
我想要做的是拥有一个我想要创建规则和探测器的端口号数组，并循环使用这些端口号，而不是显式地必须将每个规则和探测作为资源的属性进行编写。
基本上我想在我的模板中使用这样的参数或变量：
"ports": [ 80, 81, 82, ...]
并且我可以循环使用类似于此的内容：https://docs.microsoft.com/en-us/azure/azure-resource-manager/resource-group-create-multiple。
答案 0 :(得分：11)
像这样创建一个参数或变量（这个例子将使用参数数组）：
"lbRules": {
"type": "array",
"defaultValue": [
{
"name": "httpPort",
"frontendPort": "80",
"backendPort": "80",
"protocol": "tcp"
},
{
"name": "customAppPort",
"frontendPort": "8080",
"backendPort": "8888",
"protocol": "tcp"
},
{
"name": "httpsPort",
"frontendPort": "443",
"backendPort": "443",
"protocol": "tcp"
}
]
}
在Loadbalancer资源中使用此参数，使用 copy ，这将创建您在参数数组中定义的许多探针和规则：
{
"apiVersion": "[variables('lbApiVersion')]",
"type": "Microsoft.Network/loadBalancers",
"name": "[parameters('myLoadBalancer')]",
"location": "[parameters('computeLocation')]",
"dependsOn": [
"[concat('Microsoft.Network/publicIPAddresses/',concat(parameters('lbIPName'),'-','0'))]"
],
"properties": {
"frontendIPConfigurations": [
{
"name": "LoadBalancerIPConfig",
"properties": {
"publicIPAddress": {
"id": "[resourceId('Microsoft.Network/publicIPAddresses',concat(parameters('lbIPName'),'-','0'))]"
}
}
}
],
"backendAddressPools": [
{
"name": "LoadBalancerBEAddressPool",
"properties": {}
}
],
"copy": [
{
"name": "probes",
"count": "[length(parameters('lbRules'))]",
"input": {
"name": "[concat(parameters('lbRules')[copyIndex('probes')].name,'Probe')]",
"properties": {
"intervalInSeconds": 5,
"numberOfProbes": 2,
"port": "[parameters('lbRules')[copyIndex('probes')].backendPort]",
"protocol": "[parameters('lbRules')[copyIndex('probes')].protocol]"
}
}
},
{
"name": "loadBalancingRules",
"count": "[length(parameters('lbRules'))]",
"input": {
"name": "[parameters('lbRules')[copyIndex('loadBalancingRules')].name]",
"properties": {
"frontendIPConfiguration": {
"id": "[concat(resourceId('Microsoft.Network/loadBalancers', parameters('myLoadBalancer')),'/frontendIPConfigurations/LoadBalancerIPConfig')]"
},
"frontendport": "[parameters('lbRules')[copyIndex('loadBalancingRules')].frontendport]",
"backendport": "[parameters('lbRules')[copyIndex('loadBalancingRules')].backendport]",
"enableFloatingIP": false,
"idleTimeoutInMinutes": "5",
"protocol": "[parameters('lbRules')[copyIndex('loadBalancingRules')].protocol]",
"backendAddressPool": {
"id": "[concat(resourceId('Microsoft.Network/loadBalancers', parameters('myLoadBalancer')),'/backendAddressPools/LoadBalancerBEAddressPool')]"
},
"probe": {
"id": "[concat(variables('lbID0'),'/probes/', parameters('lbRules')[copyIndex('loadBalancingRules')].name,'Probe')]"
}
}
}
}
],
"inboundNatPools": []
},
}
}
更多信息可以在这里找到： https://docs.microsoft.com/en-us/azure/azure-resource-manager/resource-group-create-multiple#property-iteration
答案 1 :(得分：5)
您只能将复制对象应用于顶级资源。
您无法将其应用于资源类型的属性或子资源。
"resources": [
{
"type": "{provider-namespace-and-type}",
"name": "parentResource",
"copy": {
/* yes, copy can be applied here */
},
"properties": {
"exampleProperty": {
/* no, copy cannot be applied here */
}
},
"resources": [
{
"type": "{provider-type}",
"name": "childResource",
/* copy can be applied if resource is promoted to top level */
}
]
}
]
Source of Quotation: Deploy multiple instances of resources in Azure Resource Manager templates
您可以在ARM模板中循环显示属性仅限将复制对象应用于顶级资源，在您的情况下是＆＃34; Microsoft.Network/loadBalancers& ＃34; ，但这也将创建所述资源的多个副本。
如果这不是您想要实现的目标，我建议您保留现有方法，直到ARM模板支持将资源类型的对象复制到该属性。
答案 2 :(得分：3)
现在可以循环使用https://docs.microsoft.com/en-us/azure/azure-resource-manager/resource-group-create-multiple#property-iteration或中所述的属性或子资源 https://docs.microsoft.com/en-us/azure/azure-resource-manager/resource-group-create-multiple#create-multiple-instances-of-a-child-resource
您可以通过遵循类型的格式将子资源扩展（例如WebSite / Extension）作为顶级资源：
{resource-provider-namespace}/{parent-resource-type}/{child-resource-type}.
例如
Microsoft.Web/sites/siteextensions
您还必须通过concat引用子资源中的父资源。例如：
"name": "[concat('mywebsite', '/', 'myextension', copyIndex())]"
答案 3 :(得分：1)
使用执行功能可以实现您想要达到的目标。 您自己链接了正确的文档站点。转到您发布的链接，并查看“复制无效时创建多个实例”部分。
在你的情况下，这将是这样的：
"variables": {
"probeArray": [
{
"name": "AppPortProbe1",
"properties": {
"protocol": "Tcp",
"port": 80,
"intervalInSeconds": 5,
"numberOfProbes": 2
}
},
{
"name": "AppPortProbe2",
"properties": {
"protocol": "Tcp",
"port": 81,
"intervalInSeconds": 5,
"numberOfProbes": 2
}
},
{
"name": "AppPortProbe3",
"properties": {
"protocol": "Tcp",
"port": 82,
"intervalInSeconds": 5,
"numberOfProbes": 2
}
}
],
然后创建一个参数，指定所需的探测数量
"parameters": {
...
"numProbes": {
"type": "int",
"maxValue": 3,
"metadata": {
"description": "This parameter allows you to select the number of probes you want"
}
}
最后，您在资源中使用取：
"resources": [
...
{
"type": "Microsoft.Network/loadBalancers",
"properties": {
...
"probes": "[take(variables('probeArray'),parameters('numProbes'))]"
},
...
}
...
}
]
如果您继续阅读文档，您会发现自己会变得更加疯狂并将副本与链接模板相结合。