How can I make a dependent on K8S configuration file? - kubernetes

Question

I have below k8s configuration yml file but when run kubectl apply, it gives me the error namespaces "aws-observability" not found.
I understand that the aws-observability namespace is not deployed when deploying the ConfigMap.
It can be solved by split this config to two files and deploy the namespace first then the ConfigMap. But I'd like to put them in one file and deploy them in one go. How can I add a depend between these two configurations?
kind: Namespace
apiVersion: v1
metadata:
name: aws-observability
labels:
aws-observability: enabled
kind: ConfigMap
apiVersion: v1
metadata:
name: aws-logging
namespace: aws-observability
labels:
data:
output.conf: |
[OUTPUT]
Name cloudwatch
Match *
region <ap-southeast-2>
log_group_name elk-fluent-bit-cloudwatch
log_stream_prefix from-elk-fluent-bit-
auto_create_group true

Answer 1

You should add separator (---) between two components. I have tested below YAML on my machine and its working as expected:
kind: Namespace
apiVersion: v1
metadata:
name: aws-observability
labels:
aws-observability: enabled
---
kind: ConfigMap
apiVersion: v1
metadata:
name: aws-logging
namespace: aws-observability
labels:
data:
output.conf: |
[OUTPUT]
Name cloudwatch
Match *
region <ap-southeast-2>
log_group_name elk-fluent-bit-cloudwatch
log_stream_prefix from-elk-fluent-bit-
auto_create_group true