add self hosted example and update docs #1

	# This workflow builds container images and pushes them to the NSF NCAR Harbor Container Repository
	# Set the workflow name
	name: GitHub Runner Build, Push, & Update

	# Define the trigger that starts the action
	# For this workflow the trigger is on a push that changes anything in the main branch
	on:
	push:
	paths:
	- August-08-2024/**
	branches:
	- main

	# Define the actions that are going to take place as part of this workflow
	jobs:
	# Name the job(s)
	build-push-gh-runner-cicd:
	# Define where the job should run in this case it will be run on the self-hosted runner image
	runs-on: self-hosted
	# Set the steps to take in order
	steps:
	# Step 1 is to checkout the github repo used to build the container image
	- name: Check out the repo
	uses: actions/checkout@v4
	# Get the date to apply to image tag
	- name: Get current date
	id: date
	run: echo "date=$(date +'%Y-%m-%d.%H.%M')" >> $GITHUB_OUTPUT
	# Use podman to build the image and tag it with the current date
	- name: Build and push image
	run: podman build -t docker.io/ncging/workshop-webapp:${{ steps.date.outputs.date }} .
	# Login to Harbor with a robot account for the ncote project in Harbor
	- name: Login to Docker Hub
	run: podman login docker.io -u ${{ secrets.DOCKERHUB_USERNAME }} -p ${{ secrets.DOCKERHUB_TOKEN }}
	# Push the image to Harbor
	- name: Push image to Harbor
	run: podman push docker.io/ncging/workshop-webapp:${{ steps.date.outputs.date }}

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