initial commit and folder (#1)

* initial commit and folder

* adjust context for docker build

.github/workflows/publish.yaml

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+name: Publish image to Public ECR
+
+on:
+  workflow_dispatch:
+    inputs:
+      image-folder:
+        description: 'The folder that contains the Dockerfile to build'
+        required: true
+      image-tag:
+        description: 'The image tag to build'
+        required: true
+
+jobs:
+  publish_to_public_ecr:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Configure AWS Credentials
+        uses: aws-actions/configure-aws-credentials@v1
+        with:
+          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+          aws-region: us-east-1
+
+      - name: Login to Amazon ECR Public
+        id: login-ecr-public
+        uses: aws-actions/amazon-ecr-login@v1
+        with:
+          registry-type: public
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+        with:
+          platforms: linux/amd64,linux/arm64
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          context: "${{ github.event.inputs.image-folder }}"
+          push: true
+          tags: public.ecr.aws/kubefirst/${{ github.event.inputs.image-folder }}:${{ github.event.inputs.image-tag }}

hello-world/Dockerfile

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+FROM ubuntu:latest
+
+COPY . .
+
+CMD [ "./entrypoint.sh" ]

hello-world/entrypoint.sh

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+#!/usr/bin/env bash
+
+echo "hello world"