filter_kubernetes: add kubernetes_namespace metadata #4540

	name: 'Pull requests compile checks'
	on:
	pull_request:
	# Only trigger if there is a code change or a CMake change that (could) affect code
	paths:
	- '**.c'
	- '**.h'
	- 'CMakeLists.txt'
	- 'cmake/*'
	workflow_dispatch:

	jobs:
	# Sanity check for compilation using older compiler on CentOS 7
	pr-compile-centos-7:
	runs-on: ubuntu-latest
	timeout-minutes: 30
	steps:
	- name: Checkout Fluent Bit code
	uses: actions/checkout@v4

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3

	- name: Attempt to build current source for CentOS 7
	uses: docker/build-push-action@v5
	with:
	context: .
	file: ./dockerfiles/Dockerfile.centos7
	# No need to use after this so discard completely
	push: false
	load: false
	provenance: false

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