MCore Tag Bump Bot #89

	# Regularly updates the CI container
	name: MCore Tag Bump Bot
	on:
	workflow_dispatch:
	schedule:
	- cron: 0 0 * * *

	jobs:
	main:
	runs-on: ubuntu-latest
	environment: main
	steps:
	- name: Checkout NVIDIA/Megatron-LM
	uses: actions/checkout@v4
	with:
	repository: NVIDIA/Megatron-LM
	ref: main
	path: ${{ github.run_id }}

	- name: Get latest mcore commit
	id: ref
	run: \|
	cd ${{ github.run_id }}
	sha=$(git rev-parse origin/main)
	echo "sha=${sha}" >> "$GITHUB_OUTPUT"
	echo "short_sha=${sha:0:7}" >> "$GITHUB_OUTPUT"
	echo "date=$(date +%F)" >> "$GITHUB_OUTPUT"

	- name: Checkout ${{ github.repository }}
	uses: actions/checkout@v4
	with:
	path: ${{ github.run_id }}
	token: ${{ secrets.PAT }}

	- name: Bump MCORE_TAG
	run: \|
	cd ${{ github.run_id }}
	sed -i 's/^ARG MCORE_TAG=.*$/ARG MCORE_TAG=${{ steps.ref.outputs.sha }}/' Dockerfile.ci

	- name: Create Bump PR
	uses: peter-evans/create-pull-request@v6
	id: create-pull-request
	with:
	path: ${{ github.run_id }}
	branch: bump-ci-container-${{ steps.ref.outputs.date }}
	base: main
	title: 'Bump `Dockerfile.ci` (${{ steps.ref.outputs.date }})'
	token: ${{ secrets.PAT }}
	body: \|
	🚀 PR to Bump `Dockerfile.ci`.

	📝 Please remember the following to-do's before merge:
	- [ ] Verify the presubmit CI

	🙏 Please merge this PR only if the CI workflow completed successfully.
	commit-message: "[🤠]: Howdy folks, let's bump `Dockerfile.ci` to ${{ steps.ref.outputs.short_sha }} !"
	signoff: true
	reviewers: 'pablo-garay'
	labels: 'Run CICD'

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