Build and publish Docker image using GitHub Actions

.github/workflows/docker.yml

@@ -0,0 +1,42 @@
+name: Docker Image CI
+
+on:
+  push:
+    tags:
+      - '*'  
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:   
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ghcr.io/${{ github.repository }}
+          tags: type=ref,event=tag
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2    
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v4
+        with:
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

README.md

@@ -223,24 +223,24 @@ This is just some examples of what we can do using ChatGPT model, I'm sure you w
 ```
 
 ## Docker
-Use the provided `Dockerfile` to build a container:
-```shell
-docker build -t sgpt .
-```
-
 Run the container using the `OPENAI_API_KEY` environment variable, and a docker volume to store cache:
 ```shell
 docker run --rm \
            --env OPENAI_API_KEY="your OPENAI API key" \
            --volume gpt-cache:/tmp/shell_gpt \
-       sgpt --chat rainbow "what are the colors of a rainbow"
+       ghcr.io/TheR1D/shell_gpt --chat rainbow "what are the colors of a rainbow"
 ```
 
 Example of a conversation, using an alias and the `OPENAI_API_KEY` environment variable:
 ```shell
-alias sgpt="docker run --rm --env OPENAI_API_KEY --volume gpt-cache:/tmp/shell_gpt sgpt"
+alias sgpt="docker run --rm --env OPENAI_API_KEY --volume gpt-cache:/tmp/shell_gpt ghcr.io/TheR1D/shell_gpt"
 export OPENAI_API_KEY="your OPENAI API key"
 sgpt --chat rainbow "what are the colors of a rainbow"
 sgpt --chat rainbow "inverse the list of your last answer"
 sgpt --chat rainbow "translate your last answer in french"
 ```
+
+You also can use the provided `Dockerfile` to build your own image:
+```shell
+docker build -t sgpt .
+```