Q:

Building cdk modal - ngOnInit is not triggered and no data is passed

I'm trying to build modals library  that is dependent only on CDK. 
Modal is opened with service and I pass entryComponent to render it in modal. 
Here is sample: https://stackblitz.com/edit/angular-ofzpks?file=src%2Fapp%2Fmodal.component.ts
In modal itself I'm creating component with factory:
const compRef = this.componentFactoryResolver.resolveComponentFactory<any>(this.modalContentComponent);
const componentRef = this.modalContainer.createComponent(compRef);

I have two problems:

I have to trigger componentRef.instance.ngOnInit(); manually
I pass some data to that component: componentRef.instance.name = this.data.name; but component never renders it

A:

In your modal.component.ts, use ngOnInit instead of ngAfterViewInit:
ngOnInit() {
  const compRef = this.componentFactoryResolver.resolveComponentFactory<any>(this.modalContentComponent);
  const componentRef = this.modalContainer.createComponent(compRef);
  componentRef.instance.name = this.data.name;
}

Updated StackBlitz

Doing it this way means that ngDoCheck will run and detect the changes for you since ngDoCheck runs directly after ngOnInit.