Batch Upgrade Policy - Document Details

About This Page

This page is part of the Azure documentation. It contains code examples and configuration instructions for working with Azure services.

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Bias Analysis

Detected Bias Types

windows_first

missing_linux_example

windows_tools

Summary

The documentation page demonstrates a Windows bias by providing only Windows-based examples for both REST API and SDK usage. The sample configurations and code exclusively reference Windows images (e.g., MicrosoftWindowsServer, WindowsServer, batch.node.windows amd64) and Windows-specific properties (windowsConfiguration, enableAutomaticUpdates). There are no examples or guidance for provisioning Linux-based pools, nor are Linux image references or configuration options discussed. The documentation also references Windows Update and in-VM patching in a way that is specific to Windows, without mentioning the Linux equivalents.

Recommendations

Add parallel examples for Linux pools, including REST API and SDK (C#) snippets that use Linux image references (e.g., Ubuntu, CentOS) and nodeAgentSkuId values appropriate for Linux.
Explicitly document Linux-specific configuration options, such as linuxConfiguration blocks, and discuss any differences in automatic OS upgrade behavior between Windows and Linux.
Mention Linux update mechanisms (e.g., package manager updates) where Windows Update is discussed, or clarify if/how automatic upgrades differ for Linux nodes.
Ensure that references to image publishers, offers, and SKUs include both Windows and Linux options, and provide guidance for selecting Linux images.
Where Windows-specific properties are required (e.g., windowsConfiguration), clarify their Linux equivalents or state when they are not applicable.

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Scan History

Date	Scan	Status	Result
2026-01-14 00:00	#250	in_progress	Biased
2026-01-13 00:00	#246	completed	Biased
2026-01-12 00:00	#243	cancelled	Biased
2026-01-11 00:00	#240	completed	Biased
2026-01-10 00:00	#237	completed	Biased
2026-01-09 00:34	#234	completed	Biased
2026-01-08 00:53	#231	completed	Biased
2026-01-06 18:15	#225	cancelled	Clean
2025-08-17 00:01	#83	cancelled	Clean
2025-07-13 21:37	#48	completed	Biased
2025-07-09 13:09	#3	cancelled	Clean
2025-07-08 04:23	#2	cancelled	Biased

Flagged Code Snippets

{
    "name": "test1",
    "type": "Microsoft.Batch/batchAccounts/pools",
    "parameters": {
        "properties": {
            "vmSize": "Standard_d4s_v3",
            "deploymentConfiguration": {
                "virtualMachineConfiguration": {
                    "imageReference": {
                        "publisher": "MicrosoftWindowsServer",
                        "offer": "WindowsServer",
                        "sku": "2019-datacenter-smalldisk",
                        "version": "latest"
                    },
                    "nodePlacementConfiguration": {
                        "policy": "Zonal"
                    },
                    "nodeAgentSKUId": "batch.node.windows amd64",
                    "windowsConfiguration": {
                        "enableAutomaticUpdates": false
                    }
                }
            },
            "scaleSettings": {
                "fixedScale": {
                    "targetDedicatedNodes": 2,
                    "targetLowPriorityNodes": 0
                }
            },
            "upgradePolicy": {
                "mode": "Automatic",
                "automaticOSUpgradePolicy": {
                    "disableAutomaticRollback": true,
                    "enableAutomaticOSUpgrade": true,
                    "useRollingUpgradePolicy": true,
                    "osRollingUpgradeDeferral": true
                },
                "rollingUpgradePolicy": {
                    "enableCrossZoneUpgrade": true,
                    "maxBatchInstancePercent": 20,
                    "maxUnhealthyInstancePercent": 20,
                    "maxUnhealthyUpgradedInstancePercent": 20,
                    "pauseTimeBetweenBatches": "PT0S",
                    "prioritizeUnhealthyInstances": false,
                    "rollbackFailedInstancesOnPolicyBreach": false
                }
            }
        }
    }
}