Sitecore Commerce 10 installer Commerce Ops Bootstrap

Question

My Sitecore Commerce installer fails to bootstrap commerce services. I made sure my Sitecore XP installer doesn't get interrupted and the XP is working. Any idea what could be causing this problem?

Sitecore Commerce installer Log file output:

Concatenating: https://commerceops.sc.com /commerceops/Bootstrap()
Result: https://commerceops.sc.com/commerceops/Bootstrap()
BootStrapping Commerce Services: https://commerceops.sc.com/commerceops/Bootstrap()
POST https://commerceops.sc.com/commerceops/Bootstrap() with 0-byte payload
Install-SitecoreConfiguration : 
Service Unavailable

Service Unavailable
HTTP Error 503. The service is unavailable.


At C:\Sitecore\Sitecore_XC_install\SIF.Sitecore.Commerce.6.0.18\My-Deploy-Sitecore-Commerce.ps1:296 char:5
+     Install-SitecoreConfiguration @deployCommerceParams -Verbose *>&1 ...
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Write-Error], WriteErrorException
    + FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,Install-SitecoreConfiguration

Screenshot:

Answer 1

Try to change your AppPool Identity to ApplicationPoolIdentity

Also if this doesn't help then change in Plugin.SQL.PolicySet-1.0.0.json "TrustedConnection": "false", and bootstrap then try. Do it for all 4 - Authoring, Shops, Minions, Ops.