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Azure 容器实例的配置映射

2025-06-02

ConfigMap 是一个属性，可用于应用类似于环境变量和机密卷的容器配置。但是，与使用环境变量或机密卷时需要重新启动 pod 才能应用设置不同，使用 ConfigMap 应用设置不需要重新启动即可使更改生效。

无论是否使用 ConfigMap 都可创建 Azure 容器实例，并且可使用 ConfigMap 在创建后的任何时间点更新这些实例。可以快速更新现有正在运行的容器组中的 ConfigMap，而不会危及容器的运行时间。

工作原理

ConfigMap 可以包含在容器属性或容器组配置文件中。使用 ConfigMap 设置创建容器组配置文件使得应用这些设置变得简单且易于自动化。

使用 ConfigMap 设置创建容器组配置文件

使用 az container container-group-profile create 通过 ConfigMap 设置创建容器组配置文件。

az container container-group-profile create \
    --resource-group myResourceGroup \
    --name myContainerGroupProfile \
    --___location WestCentralUS \
    --image nginx \
    --os-type Linux \ 
    --ip-address Public \ 
    --ports 8000 \ 
    --cpu 1 \
    --memory 1.5 \
    --restart-policy never \
    --config-map key1=value1 key2=value2

使用 New-AzContainerInstanceContainerGroupProfile 通过 ConfigMap 设置创建容器组配置文件。

$port1 = New-AzContainerInstancePortObject -Port 8000 -Protocol TCP
$port2 = New-AzContainerInstancePortObject -Port 8001 -Protocol TCP

$container = New-AzContainerInstanceObject -Name myContainer -Image nginx -RequestCpu 1 -RequestMemoryInGb 1.5 -Port @($port1, $port2) -ConfigMapKeyValuePair @{"key1"="value1"}

New-AzContainerInstanceContainerGroupProfile `
    -ResourceGroupName myResourceGroup `
    -Name myContainerGroupProfile `
    -Location WestCentralUS `
    -Container $container `
    -OsType Linux `
    -RestartPolicy "Never" `
    -IpAddressType Public

使用 az deployment group create 或 New-AzResourceGroupDeployment 通过 ConfigMap 设置创建容器组配置文件并部署模板。

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "resources": [
    {
      "type": "Microsoft.ContainerInstance/containerGroups",
      "apiVersion": "2024-05-01-preview",
      "name": "[parameters('profileName')]",
      "___location": "[parameters('___location')]",
      "properties": {
        "containers": [
          {
            "name": "myContainer",
            "properties": {
              "image": "[parameters('containerImage')]",
              "ports": [
                {
                  "port": 8000
                }
              ],
              "resources": {
                "requests": {
                  "cpu": 1,
                  "memoryInGB": 1.5
                }
              },
              "command": [],
              "configMap": {
                  "keyValuePairs": {
                        "key1": "value1",
                        "key2": "value2"
                                   }                   
              "environmentVariables": []
            }
          }
        ],
        "osType": "Linux",
        "ipAddress": {
          "type": "Public",
          "ports": [
            {
              "protocol": "TCP",
              "port": 8000
            }
          ]
        },
        "imageRegistryCredentials": [],
        "sku": "Standard"
      }
    }
  ],
  "parameters": {
    "profileName": {
      "type": "string",
      "defaultValue": "myContainerGroupProfile",
      "metadata": {
        "description": "Name of the container profile"
      }
    },
    "___location": {
      "type": "string",
      "defaultValue": "West Central US",
      "metadata": {
        "description": "Location for the resource"
      }
    },
    "containerImage": {
      "type": "string",
      "defaultValue": "mcr.microsoft.com/azuredocs/aci-helloworld:latest",
      "metadata": {
        "description": "The container image used"
      }
    }
  }
}

使用 Create or Update 通过 ConfigMap 设置创建容器组配置文件。

PUT https://management.azure.com/subscriptions/{SubscriptionID}/resourceGroups/myResourceGroup/providers/Microsoft.ContainerInstance/containerGroupProfiles/myContainerGroupProfile?api-version=2024-05-01-preview

Request Body
{
    "___location": "West Central US",
    "properties":{
        "containers": [
        {
            "name":"myContainerGroupProfile",
            "properties": {
                "command":[],
                "configMap": {
                  "keyValuePairs": {
                        "key1": "value1",
                        "key2": "value2"
                                   }
                            },     
                "environmentVariables":[],
                "image":"mcr.microsoft.com/azuredocs/aci-helloworld:latest",
                "ports":[
                    {
                        "port":8000
                    }
                ],
                "resources": {
                    "requests": {
                        "cpu":1,
                        "memoryInGB":1.5
                                }
                            }
                        }
                    }
                ],
                "imageRegistryCredentials":[],
                "ipAddress":{
                "ports":[
                    {
                        "protocol":"TCP",
                        "port":8000
                    }
            ],
            "type":"Public"
            },
            "osType":"Linux",
            "sku":"Standard"
            }
        }

使用容器组配置文件应用 ConfigMap 设置

应用存储在容器组配置文件中的 ConfigMap 设置需要更新容器并指定应与更新关联的容器组配置文件。

使用 az container create 应用存储在容器组配置文件中的 ConfigMap 设置。

az container create 
        --resource-group myResourceGroup \ 
        --name myContainer \ 
        --___location WestCentralUS \
        --container-group-profile-id "/subscriptions/{SubscriptionID}/resourceGroups/myResourceGroup/providers/Microsoft.ContainerInstance/containerGroupProfiles/myContainerGroupProfile" \
        --container-group-profile-revision 1

使用 New-AzContainerGroup 应用存储在容器组配置文件中的 ConfigMap 设置。

$container = New-AzContainerInstancenoDefaultObject -Name myContainer

New-AzContainerGroup `
    -ResourceGroupName myResourceGroup `
    -Name myContainer`
    -Container $container `
    -Location WestCentralUS `
    -ContainerGroupProfileId "/subscriptions/{SubscriptionID}/resourceGroups/myResourceGroup/providers/Microsoft.ContainerInstance/containerGroupProfiles/myContainerGroupProfile" `
    -ContainerGroupProfileRevision 1

使用 az deployment group create 或 New-AzResourceGroupDeployment 应用存储在容器组配置文件中的 ConfigMap 设置。

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "subscriptionId": {
      "type": "string",
      "metadata": {
        "description": "The subscription ID."
      }
    },
    "resourceGroup": {
      "type": "string",
      "metadata": {
        "description": "The name of the resource group."
      }
    },
    "___location": {
      "type": "string",
      "metadata": {
        "description": "Location for the resource."
      },
      "defaultValue": "West Central US"
    },
    "containerGroupName": {
      "type": "string",
      "metadata": {
        "description": "The name of the container group."
      }
    },
    },
    "containerGroupProfileName": {
      "type": "string",
      "metadata": {
        "description": "The name of the container group profile."
      }
    },
    "newKey": {
      "type": "string",
      "metadata": {
        "description": "The new key for the config map."
      }
    },
    "newValue": {
      "type": "string",
      "metadata": {
        "description": "The new value for the config map."
      }
    },
    "revisionNumber": {
      "type": "int",
      "metadata": {
        "description": "The revision number for the container group profile."
      }
    }
  },
  "resources": [
    {
      "type": "Microsoft.ContainerInstance/containerGroups",
      "apiVersion": "2024-05-01-preview",
      "name": "[parameters('containerGroupName')]",
      "___location": "[parameters('___location')]",
      "properties": {
        "containerGroupProfile": {
          "id": "[concat('/subscriptions/', parameters('subscriptionId'), '/resourceGroups/', parameters('resourceGroup'), '/providers/Microsoft.ContainerInstance/containerGroupProfiles/', parameters('containerGroupProfileName'))]",
          "revision": "[parameters('revisionNumber')]"
        },
        "containers": [
          {
            "name": "[parameters('myContainerProfile')]",
            "properties": {
              "configMap": {
                "keyValuePairs": {
                  "[parameters('newKey')]": "[parameters('newValue')]"
                }
              }
            }
          }
        ]
      }
    }
  ],
  "outputs": {
    "containerGroupId": {
      "type": "string",
      "value": "[resourceId('Microsoft.ContainerInstance/containerGroups', parameters('containerGroupName'))]"
    }
  }
}

使用 Create or Update 应用存储在容器组配置文件中的 ConfigMap 设置。

PUT
https://management.azure.com/subscriptions/{SubscriptionID}/resourceGroups/myResourceGroup/providers/Microsoft.ContainerInstance/containerGroups/myContainerGroup?api-version=2024-05-01-preview 

Request Body
{
   "___location": "{___location}",
   "properties": {
           "containerGroupProfile": {
               "id": "/subscriptions/{subscriptionId}/resourceGroups/myResourceGroup/providers/Microsoft.ContainerInstance/containerGroupProfiles/myContainerGroupProfile",
               "revision": {revisionNumber}
           },
           "containers": [
               {
                   "name": "{myContainerGroupProfile}",
                   "properties": {
                   }
               }
           ]
   }
}

不使用容器组配置文件应用 ConfigMap 设置

通过在 create 命令中指定 ConfigMap 设置，也可以将 ConfigMap 设置直接应用于实例。

使用 az container create 应用 ConfigMap 设置。

az container create \
    --resource-group myResourceGroup \ 
    --name myContainer \
    --___location WestCentralUS \ 
    --config-map key1=value1 key2=value2

使用 New-AzContainerGrouop 应用 ConfigMap 设置。

$container = New-AzContainerInstancenoDefaultObject -Name myContainer -ConfigMapKeyValuePair @{"key1"="value1"}

New-AzContainerGroup `
    -ResourceGroupName myResourceGroup `
    -Name myContainerGroup ` 
    -Container $container `
    -Location WestCentralUS

使用 az deployment group create 或 New-AzResourceGroupDeployment 应用 ConfigMap 设置。

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "subscriptionId": {
      "type": "string",
      "metadata": {
        "description": "The subscription ID."
      }
    },
    "resourceGroup": {
      "type": "string",
      "metadata": {
        "description": "The name of the resource group."
      }
    },
    "___location": {
      "type": "string",
      "metadata": {
        "description": "Location for the resource."
      },
      "defaultValue": "West Central US"
    },
    "containerGroupName": {
      "type": "string",
      "metadata": {
        "description": "The name of the container group."
    }
    },
    "myContainerProfile": {
      "type": "string",
      "metadata": {
        "description": "The name of the container profile."
      }
    },
    "newKey": {
      "type": "string",
      "metadata": {
        "description": "The new key for the config map."
      }
    },
    "newValue": {
      "type": "string",
      "metadata": {
        "description": "The new value for the config map."
      }
    },
  },
  "resources": [
    {
      "type": "Microsoft.ContainerInstance/containerGroups",
      "apiVersion": "2024-05-01-preview",
      "name": "[parameters('containerGroupName')]",
      "___location": "[parameters('___location')]",
      "properties": {
        "containers": [
          {
            "name": "[parameters('myContainerProfile')]",
            "properties": {
              "configMap": {
                "keyValuePairs": {
                  "[parameters('newKey')]": "[parameters('newValue')]"
                }
              }
            }
          }
        ]
      }
    }
  ],
  "outputs": {
    "containerGroupId": {
      "type": "string",
      "value": "[resourceId('Microsoft.ContainerInstance/containerGroups', parameters('containerGroupName'))]"
    }
  }
}

使用 Create or Update 应用 ConfigMap 设置。

PUT
https://management.azure.com/subscriptions/{SubscriptionID}/resourceGroups/myResourceGroup/providers/Microsoft.ContainerInstance/containerGroups/myContainerGroup?api-version=2024-05-01-preview 

Request Body
{
   "___location": "{___location}",
   "properties": {
           "containers": [
               {
                   "name": "{myContainerGroupProfile}",
                   "properties": {
                       "configMap": {
                           "keyValuePairs": {
                               "{newKey}": "{newValue}"
                           }
                       }
                   }
               }
           ]
   }
}

更新应用于现有容器后，无需重启即可看到容器中装载的值。

/mnt/configmap/<containername>/key1 with value as “value1”

/mnt/configmap/<containername>/key2 with value as “value2”

通过

Azure 容器实例的配置映射

工作原理

使用 ConfigMap 设置创建容器组配置文件

使用容器组配置文件应用 ConfigMap 设置

不使用容器组配置文件应用 ConfigMap 设置

后续步骤

反馈

其他资源