How setup gradle to prefer repositories from init.gradle to build.gradle? - gradle

Question

Pls, help understand how gradle work.
In linux server i have Java project and build them from gradle 4.10.3.
In Project i have build.gradle file with repositories section. Also in subproject i have this file too.
build.gradle example:
repositories {
maven { url 'http://1.2.3.4'}
}
subprojects {
buildscript {
repositories {
maven { url 'http://1.2.3.4'}
}
}
repositories {
maven { url 'http://8.2.3.4/'}
}
}
I`m try override repositories in init.gradle file (locate in folder $GRADLE_HOME/init.d/)
But this doesnt work. When build project, gradle use repositories from build.gradle project (and subproject) file.
Also i`m try run gradle with option -I and path to init.gradle file - same result.
gradle -I $GRADLE_HOME/init.d/init.gradle -Pprod clean build
Can i override repositories section in build.gradle (located in project and subproject) by use some file in local environment, or may be some $env or something else ?
UPD.
in init.gradle file i write this:
settingsEvaluated { settings ->
settings.pluginManagement {
resolutionStrategy {
}
repositories {
maven {url 'http://13.1.1.21:8084'
}
}
}
}
allprojects {
repositories {
mavenLocal()
maven {url "http://10.8.13.21:8080/repository/"
}
}
}