`az group deployment create` parameter processing affected by character in sshKey

**Describe the bug**
I have an ARM template with certain string parameters, int, and boolean parameters. Among the string parameters is a parameter (sshRSAPublicKey) accepting the contents of the public key file which is generated using `ssh-keygen -b 2048 -t rsa` command. A special charater in the sshKey throws off the processing of the commandline. As a result, any parameters (template parameters or command parameters) passed after the `sshKey` aren't being processed by `az group deployment create` command.

**To Reproduce**
ARM Template file used:
```
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.1",
"parameters": {
"clusterName": {
"type": "string",
"defaultValue": "aks101cluster",
"metadata": {
"description": "The name of the Managed Cluster resource."
}
},
"location": {
"type": "string",
"defaultValue": "[resourceGroup().location]",
"metadata": {
"description": "The location of the Managed Cluster resource."
}
},
"dnsPrefix": {
"type": "string",
"metadata": {
"description": "Optional DNS prefix to use with hosted Kubernetes API server FQDN."
},
"defaultValue": "temporarydns"
},
"osDiskSizeGB": {
"type": "int",
"defaultValue": 0,
"minValue": 0,
"maxValue": 1023,
"metadata": {
"description": "Disk size (in GB) to provision for Linux pool nodes. This value ranges from 0 to 1023. Specifying 0 will apply the default disk size for that agentVMSize."
}
},
"osDiskSizeGBWin": {
"type": "int",
"defaultValue": 0,
"minValue": 0,
"maxValue": 1023,
"metadata": {
"description": "Disk size (in GB) to provision for each of the Windows pool nodes. This value ranges from 0 to 1023. Specifying 0 will apply the default disk size for that agentVMSize."
}
},
"agentCountMin": {
"type": "int",
"defaultValue": 3,
"minValue": 1,
"maxValue": 50,
"metadata": {
"description": "The minimum number of Linux nodes for the cluster."
}
},
"agentCountMax": {
"type": "int",
"defaultValue": 3,
"minValue": 1,
"maxValue": 50,
"metadata": {
"description": "The maximum number of Linux nodes for the cluster."
}
},
"agentCountMinWin": {
"type": "int",
"defaultValue": 0,
"minValue": 0,
"maxValue": 50,
"metadata": {
"description": "The minimum number of Windows nodes for the cluster."
}
},
"agentCountMaxWin": {
"type": "int",
"defaultValue": 0,
"minValue": 0,
"maxValue": 50,
"metadata": {
"description": "The maxium number of Windows nodes for the cluster."
}
},
"agentVMSize": {
"type": "string",
"defaultValue": "Standard_D4s_v3",
"metadata": {
"description": "The size of the Virtual Machine."
}
},
"agentVmSizeWin": {
"type": "string",
"defaultValue": "Standard_D4s_v3",
"metadata": {
"description": "The size of the Virtual Machine for Windows."
}
},
"linuxAdminUsername": {
"type": "string",
"metadata": {
"description": "User name for the Linux Virtual Machines."
}
},
"windowsAdminUsername": {
"type": "string",
"defaultValue":"locustuser",
"metadata": {
"description": "User name for the Linux Virtual Machines."
}
},
"windowsAdminPassword": {
"type": "securestring",
"metadata": {
"description": "Password for Windows Virtual Machines."
}
},
"sshRSAPublicKey": {
"type": "string",
"metadata": {
"description": "Configure all linux machines with the SSH RSA public key string. Your key should include three parts, for example 'ssh-rsa AAAAB...snip...UcyupgH azureuser@linuxvm'"
}
},
"deployWindows": {
"type": "bool",
"defaultValue": false,
"metadata": {
"description": "Whether to deploy Windows nodes."
}
}
},
"variables": {
"windowsProfile": {
"adminUsername": "[parameters('windowsAdminUsername')]",
"adminPassword": "[parameters('windowsAdminPassword')]"
},
"linuxAgent": [{
"name": "agentpool",
"osDiskSizeGB": "[parameters('osDiskSizeGB')]",
"vmSize": "[parameters('agentVMSize')]",
"osType": "Linux",
"storageProfile": "ManagedDisks",
"type": "VirtualMachineScaleSets",
"mode": "System",
"maxCount": "[parameters('agentCountMax')]",
"minCount": "[parameters('agentCountMin')]",
"Count": "[parameters('agentCountMin')]",
"enableAutoScaling": true
}],
"windowsAgent": [{
"name": "win",
"osDiskSizeGB": "[parameters('osDiskSizeGBWin')]",
"vmSize": "[parameters('agentVmSizeWin')]",
"osType": "Windows",
"storageProfile": "ManagedDisks",
"type": "VirtualMachineScaleSets",
"mode": "User",
"enableAutoScaling": true,
"maxCount": "[parameters('agentCountMaxWin')]",
"minCount": "[parameters('agentCountMinWin')]",
"Count": "[parameters('agentCountMinWin')]"
}],
"agentPools": "[if(parameters('deployWindows'), union(variables('linuxAgent'),variables('windowsAgent')), variables('linuxAgent'))]"
},
"resources": [
{
"type": "Microsoft.ContainerService/managedClusters",
"apiVersion": "2020-03-01",
"name": "[parameters('clusterName')]",
"location": "[parameters('location')]",
"properties": {
"networkProfile": {
"networkPlugin": "azure",
"loadBalancerSku": "Standard",
"serviceCidr": "10.0.0.0/16",
"dnsServiceIP": "10.0.0.10",
"dockerBridgeCidr": "172.17.0.1/16"
},
"dnsPrefix": "[parameters('dnsPrefix')]",
"agentPoolProfiles": "[variables('agentPools')]",
"linuxProfile": {
"adminUsername": "[parameters('linuxAdminUsername')]",
"ssh": {
"publicKeys": [
{
"keyData": "[parameters('sshRSAPublicKey')]"
}
]
}
},
"windowsProfile":"[if(parameters('deployWindows'), variables('windowsProfile'), json('null'))]",
"autoScalerProfile": {
}
},
"identity": {
"type": "SystemAssigned"
}
}
],
"outputs": {
"controlPlaneFQDN": {
"type": "string",
"value": "[reference(parameters('clusterName')).fqdn]"
}
}
}
```
Create a deployment using the following command:
```
az deployment group create -g $resourceGroup --template-file $templatePath --parameters location=$location agentCountMin=$linuxNodeCountMin agentCountMax=$linuxNodeCountMax agentCountMinWin=$windowsNodeCountMin agentCountMaxWin=$windowsNodeCountMax agentVMSize=$linuxNodeSKU agentVmSizeWin=$windowsNodeSKU linuxAdminUsername=$linuxAdminUsername windowsAdminUsername=$windowsAdminUsername dnsPrefix=$clusterName sshRSAPublicKey=$sshKey deployWindows=$deployWindows clusterName=$clusterName
```

**Expected behavior**
The parameters after sshRSAPublicKey, should **NOT** take the defaults and should accept values provided using variables `$deployWindows` and `$clusterName` however, these aren't passed to the cli and only default values are taken. Any template and command parameters passed after sshRSAPublicKey are being omitted / not processed.

**Environment summary**
- az-cli 2.29.0
- Powershell Core 7.1.4
- Windows 10

**Additional context**
I worked around this issue by ensuring that the last parameter passed to the group deployment command is sshKey to ensure all parameters are being processed.