如何在Azure IoT Edge部署JSON文件中设置环境变量？

你可以在部署JSON文件的模块配置节点中添加env字段来定义环境变量，具体配置方式如下：

示例配置片段 #

"modulesContent": {
  "$edgeAgent": {
    "properties.desired": {
      "modules": {
        "你的目标模块名称": {
          "settings": {
            "image": "你的模块镜像地址",
            "createOptions": ""
          },
          "type": "docker",
          "env": {
            "ENV_VAR_1": {
              "value": "变量值1"
            },
            "ENV_VAR_2": {
              "value": "变量值2",
              "secretFlags": 1 // 敏感数据设置为1，IoT Edge会加密存储
            }
          },
          "status": "running",
          "restartPolicy": "always"
        }
      },
      "runtime": {
        "settings": {
          "minDockerVersion": "v1.25"
        },
        "type": "docker"
      },
      "schemaVersion": "1.1",
      "systemModules": {
        "edgeAgent": {
          "settings": {
            "image": "mcr.microsoft.com/azureiotedge-agent:1.4",
            "createOptions": ""
          },
          "type": "docker"
        },
        "edgeHub": {
          "settings": {
            "image": "mcr.microsoft.com/azureiotedge-hub:1.4",
            "createOptions": "{\"HostConfig\":{\"PortBindings\":{\"5671/tcp\":[{\"HostPort\":\"5671\"}],\"8883/tcp\":[{\"HostPort\":\"8883\"}],\"443/tcp\":[{\"HostPort\":\"443\"}]}}}"
          },
          "type": "docker",
          "status": "running",
          "restartPolicy": "always"
        }
      }
    }
  },
  "$edgeHub": {
    "properties.desired": {
      "routes": {},
      "schemaVersion": "1.1",
      "storeAndForwardConfiguration": {
        "timeToLiveSecs": 7200
      }
    }
  }
}

关键说明 #

• env字段需放在目标模块的配置节点下，与settings、status同级
• 每个环境变量以键值对形式定义，value字段填写变量的具体内容
• 若为敏感数据（如密码、密钥），添加secretFlags: 1，IoT Edge会加密存储该变量，避免明文泄露

修改完JSON文件后，重新执行你之前的部署命令即可生效：

az iot edge set-modules --hubname xxx --device-Id yy --content ./deployment.arm64vf8.json

内容的提问来源于stack exchange，提问作者codeputer