How to enable the Core database on a CD server in Sitecore 9.1?

Question

Even if it's not mandatory for this version, I'd like to enable the Core database to troubleshoot a few issues I'm having in staging.

How is this done?

Answer 1

I don't recommend this, but in your Sitecore.config remove the role:require="!ContentDelivery" from these three sections. It will bring core back. I don't think Sitecore will like it as the ContentDelivery does a lot of stuff.

<eventQueue name="core" type="Sitecore.Data.Eventing.$(database)EventQueue, Sitecore.Kernel" role:require="!ContentDelivery">
  <param ref="dataApis/dataApi[@name='$(database)']" param1="$(name)" />
  <param ref="PropertyStoreProvider/store[@name='$(name)']" />
</eventQueue>

<store name="core" prefix="core" getValueWithoutPrefix="true" singleInstance="true" type="Sitecore.Data.Properties.$(database)PropertyStore, Sitecore.Kernel" role:require="!ContentDelivery">
  <param ref="dataApis/dataApi[@name='$(database)']" param1="$(name)" />
  <param resolve="true" type="Sitecore.Abstractions.BaseEventManager, Sitecore.Kernel" />
  <param resolve="true" type="Sitecore.Abstractions.BaseCacheManager, Sitecore.Kernel" />
</store>


<database id="core" singleInstance="true" type="Sitecore.Data.DefaultDatabase, Sitecore.Kernel" role:require="!ContentDelivery">
    <param desc="name">$(id)</param>
    <connectionStringName>$(id)</connectionStringName>
    <icon>Images/database_core.png</icon>
    <dataProviders hint="list:AddDataProvider">
    <dataProvider ref="dataProviders/main" param1="$(id)">
        <prefetch role:require="ContentManagement or Standalone" hint="raw:AddPrefetch">
        <sc.include file="/App_Config/Prefetch/Common.config" />
        <sc.include file="/App_Config/Prefetch/Core.config" />
        </prefetch>
    </dataProvider>
    </dataProviders>
    <PropertyStore ref="PropertyStoreProvider/store[@name='$(id)']" />
    <remoteEvents.EventQueue>
    <obj ref="eventing/eventQueueProvider/eventQueue[@name='$(id)']" />
    </remoteEvents.EventQueue>
    <workflowProvider hint="defer" type="Sitecore.Workflows.Simple.WorkflowProvider, Sitecore.Kernel">
    <param desc="database">$(id)</param>
    <param desc="history store" ref="workflowHistoryStores/main" param1="$(id)" />
    </workflowProvider>
    <archives hint="raw:AddArchive">
    <archive name="archive" />
    <archive name="recyclebin" />
    </archives>
    <cacheSizes hint="setting">
    <data>100MB</data>
    <items>50MB</items>
    <paths>2500KB</paths>
    <itempaths>50MB</itempaths>
    <standardValues>2500KB</standardValues>
    </cacheSizes>
    <NotificationProvider type="Sitecore.Data.DataProviders.$(database).$(database)NotificationProvider, Sitecore.Kernel">
    <param connectionStringName="$(id)">
    </param>
    <param desc="databaseName">$(id)</param>
    </NotificationProvider>
</database>