XM Cloud config to plug external database via SQL containers

z.ExternalDatabase.config

<?xml version="1.0" encoding="UTF-8"?>
<configuration
	xmlns:patch="www.sitecore.net/.../">
	<sitecore>
		<eventing defaultProvider="sitecore">
			<eventQueueProvider>
				<eventQueue name="rrh" patch:after="evertQueue[@name='web']" type="Sitecore.Data.Eventing.$(database)EventQueue, Sitecore.Kernel">
					<param ref="dataApis/dataApi[@name='$(database)']" param1="$(name)" />
					<param ref="PropertyStoreProvider/store[@name='$(name)']" />
				</eventQueue>
				<eventQueue name="coreold" patch:after="evertQueue[@name='web']" type="Sitecore.Data.Eventing.$(database)EventQueue, Sitecore.Kernel">
					<param ref="dataApis/dataApi[@name='$(database)']" param1="$(name)" />
					<param ref="PropertyStoreProvider/store[@name='$(name)']" />
				</eventQueue>
			</eventQueueProvider>
		</eventing>
		<PropertyStoreProvider>
			<store name="rrh" patch:after="store[@name='master']" prefix="rrh" getValueWithoutPrefix="true" singleInstance="true" type="Sitecore.Data.Properties.$(database)PropertyStore, Sitecore.Kernel">
				<param ref="dataApis/dataApi[@name='$(database)']" param1="$(name)" />
				<param resolve="true" type="Sitecore.Abstractions.BaseEventManager, Sitecore.Kernel" />
				<param resolve="true" type="Sitecore.Abstractions.BaseCacheManager, Sitecore.Kernel" />
			</store>
			<store name="coreold" patch:after="store[@name='master']" prefix="custom" getValueWithoutPrefix="true" singleInstance="true" type="Sitecore.Data.Properties.$(database)PropertyStore, Sitecore.Kernel">
				<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>
		</PropertyStoreProvider>
		<databases>
			<database id="rrh" patch:after="database[@id='master']" singleInstance="true" type="Sitecore.Data.DefaultDatabase, Sitecore.Kernel">
				<param desc="name">$(id)</param>
				<icon>Images/database_master.png</icon>
				<securityEnabled>true</securityEnabled>
				<dataProviders hint="list:AddDataProvider">
					<dataProvider ref="dataProviders/main" param1="$(id)">
						<disableGroup>publishing</disableGroup>
						<prefetch hint="raw:AddPrefetch">
							<sc.include file="/App_Config/Prefetch/Common.config" />
							<sc.include file="/App_Config/Prefetch/Webdb.config" />
						</prefetch>
					</dataProvider>
				</dataProviders>
				<!-- <proxiesEnabled>false</proxiesEnabled> -->
				<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>
				<BlobStorage hint="raw:AddBlobStorage">
					<providers default="classic">
						<provider name="classic" type="Sitecore.Data.Blobs.ClassicSqlBlobProvider, Sitecore.Kernel">
						<param desc="databaseName">$(id)</param>
						</provider>
					</providers>
				</BlobStorage>
			</database>
			<database id="coreold" patch:after="database[@id='master']" singleInstance="true" type="Sitecore.Data.DefaultDatabase, Sitecore.Kernel">
				<param desc="name">$(id)</param>
				<icon>Images/database_master.png</icon>
				<securityEnabled>true</securityEnabled>
				<dataProviders hint="list:AddDataProvider">
					<dataProvider ref="dataProviders/main" param1="$(id)">
						<disableGroup>publishing</disableGroup>
						<prefetch hint="raw:AddPrefetch">
							<sc.include file="/App_Config/Prefetch/Common.config" />
							<sc.include file="/App_Config/Prefetch/Webdb.config" />
						</prefetch>
					</dataProvider>
				</dataProviders>
				<!-- <proxiesEnabled>false</proxiesEnabled> -->
				<archives hint="raw:AddArchive">
					<archive name="archive" />
					<archive name="recyclebin" />
				</archives>
				<cacheSizes hint="setting">
					<data>100MB</data>
					<items>50MB</items>
					<paths>2500KB</paths>
					<itempaths>50MB</itempaths>
					<standardValues>2500KB</standardValues>
				</cacheSizes>
				<BlobStorage hint="raw:AddBlobStorage">
					<providers default="classic">
						<provider name="classic" type="Sitecore.Data.Blobs.ClassicSqlBlobProvider, Sitecore.Kernel">
						<param desc="databaseName">$(id)</param>
						</provider>
					</providers>
				</BlobStorage>
			</database>
		</databases>
	</sitecore>
</configuration>