Add a basic Dockerfile and document how to run it against aiven infra

Author: jankatins

Dockerfile

@@ -0,0 +1,19 @@
+FROM python:3.8-slim-buster
+
+RUN ["mkdir", "-p", "/checkweb"]
+WORKDIR /src
+
+RUN groupadd -r checkweb && useradd --no-log-init -r -g checkweb checkweb
+
+COPY ./src/ /src/
+COPY requirements.txt.freeze /src/
+
+RUN true \
+    && pip install --upgrade pip \
+    && pip install --no-cache-dir  -r requirements.txt.freeze
+
+USER checkweb
+
+# start by default as producer
+ENTRYPOINT ["python3", "-m", "checkweb"]
+CMD ["producer"]

Makefile

@@ -58,3 +58,29 @@ run-%-aiven: aiven.env
 
 integration-tests-aiven: start-infra-aiven
 	CHECKWEB_ENV_PATH=aiven.env .venv/bin/python3 ./integration_tests.py
+
+build-docker:
+	docker build -t checkweb:latest -f ./Dockerfile .
+
+run-docker-aiven:
+	make -j run-docker-aiven-producer run-docker-aiven-consumer
+	make show-docker-logs
+
+run-docker-aiven-%:
+	docker run -itd --rm --name checkweb-$* --env-file=aiven.env --env KAFKA_CERT_PATH=/ \
+		-v "$(CURDIR)"/service.cert:/service.cert \
+		-v "$(CURDIR)"/service.key:/service.key \
+		-v "$(CURDIR)"/ca.pem:/ca.pem \
+		checkweb:latest $*
+
+show-docker-logs:
+	make -j show-docker-logs-producer show-docker-logs-consumer
+
+show-docker-logs-%:
+	docker logs -f checkweb-$*
+
+stop-docker:
+	make -j stop-docker-producer stop-docker-consumer
+
+stop-docker-%:
+	docker stop checkweb-$*

README.md

@@ -72,6 +72,29 @@ make stop-infra-aiven
 
 Destroying the Infrastructure is only possible in the [Aiven UI](https://console.aiven.io/).
 
+## Run locally in docker against aiven infrastructure
+
+Build the Image:
+
+```bash
+make build-docker
+```
+
+Run the docker container in detached mode and then follow the logs of both containers. This expects a 
+configured `aiven.env` file. 
+
+```bash
+make run-docker-aiven
+```
+
+`ctrl+c` will stop following the log but not the containers!
+
+To shutdown both container:
+
+```bash
+make stop-docker
+```
+
 ## Maintainance
 
 ### Updating or installing new python packages
@@ -108,7 +131,7 @@ Afterwards commit `requirements.txt` and `requirements.txt.freeze`.
 * [x] Implement an integration test which spins up new local infra, runs a few loops and then checks that the expected 
   data is in the DB + the same check with failing websites
 * [x] Polish the code
-* [ ] Proper Packaging: dockerfile? setup.py? 
+* [x] Proper Packaging: dockerfile? setup.py? -> just a Dockerfile for now
 
 ### Step 4: Connect to Aiven infra and document  
 * [x] Figure out how to spin up the infra via `avn` and document it