Add DockerFile (#6)

It is practical to include a Docker file so that a prepared solver can be deployed easily.

.dockerignore

@@ -0,0 +1,10 @@
+.github
+tests
+data
+.env.sample
+.gitignore
+.pylintrc
+Dockerfile
+LICENSE
+mypy.ini
+README.md

.github/workflows/deploy.yaml

@@ -0,0 +1,36 @@
+name: deploy
+
+on:
+  push:
+    branches: [main]
+    tags: [v*]
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - id: meta
+        uses: docker/metadata-action@v3
+        with:
+          images: ghcr.io/${{ github.repository }}
+          labels: |
+            org.opencontainers.image.licenses=MIT OR Apache-2.0
+      - uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Dockerfile

@@ -0,0 +1,10 @@
+FROM python:alpine
+RUN apk add --update gcc libc-dev linux-headers
+
+WORKDIR /app
+
+# Only copies requirements.txt and src directory (see .dockerignore)
+COPY . .
+RUN pip install -r requirements.txt
+
+ENTRYPOINT [ "python3", "-m" , "src._server"]

README.md

@@ -23,10 +23,16 @@ pip install -r requirements.txt
 python -m src._server
 ```
 
+This can also be run via docker with
+
+```sh
+docker run -p 8000:8000 gchr.io/cowprotocol/solver-template-py
+```
+
 # Feed an Auction Instance to the Solver
 
 ```shell
-curl -X POST "http://127.0.0.1:8000/solve/" \
+curl -X POST "http://127.0.0.1:8000/solve" \
   -H  "accept: application/json" \
   -H  "Content-Type: application/json" \
   --data "@data/small_example.json"
@@ -65,7 +71,7 @@ docker run -it --rm --add-host host.docker.internal:host-gateway ghcr.io/cowprot
 Clone the services project with
 
 ```shell
-git clone https://github.com/cowprotocol/services.git 
+git clone https://github.com/cowprotocol/services.git
 ```
 
 ```shell

src/_server.py

@@ -35,7 +35,7 @@
 class ServerSettings(BaseSettings):
     """Basic Server Settings"""
 
-    host: str = "127.0.0.1"
+    host: str = "0.0.0.0"
     port: int = 8000
 
 
@@ -53,7 +53,7 @@ def health() -> bool:
     return True
 
 
-@app.post("/solve/", response_model=SettledBatchAuctionModel)
+@app.post("/solve", response_model=SettledBatchAuctionModel)
 async def solve(problem: BatchAuctionModel, request: Request):  # type: ignore
     """API POST solve endpoint handler"""
     logging.debug(f"Received solve request {await request.json()}")