az storage account generate-sas --expiry precision

Description

Attempting to generate a sas token with seconds precision fails:

az storage account generate-sas: error: argument --expiry: invalid datetime_type value: '2017-08-25T12:27:03'

In Powershell, the Get-Date cmdlet provides quick format options for SortableDateTimePattern and UniversalSortableDateTimePattern which both include seconds. Using these formats results in the error above.

Fails: 2017-08-25T12:27:03 Succeeds: 2017-08-25T12:27Z

Similar to closed issue #1560

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Environment summary

Install Method: How did you install the CLI? (e.g. pip, interactive script, apt-get, Docker, MSI, nightly)
Answer here: interactive script

CLI Version: What version of the CLI and modules are installed? (Use az --version)
Answer here: 2.0.14

OS Version: What OS and version are you using?
Answer here: Mac OSX Sierra 10.12.6

Shell Type: What shell are you using? (e.g. bash, cmd.exe, Bash on Windows)
Answer here: Powershell on OSX

[rohancragg]

I ended up using the SortableDateTimePattern and concatenating a ‘Z’ on the end.

For anyone reading this - the following (in PowerShell) also works:

--expiry (Get-Date).AddMinutes(30).ToString("yyyy-MM-dTH:mZ")

[sumanthkannedari]

Can you please help me how to auto generate the SAS Token for every 3 or 5 seconds through powershell and how the resources can access the auto generated SAS Token