FastAPI hello world with docker container.

api_server/docker/Dockerfile

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+FROM alpine:3.20 AS builder
+
+RUN apk add --no-cache python3 poetry py3-poetry-plugin-export
+
+RUN mkdir /source
+WORKDIR /source
+COPY pyproject.toml poetry.lock ./
+
+RUN poetry export --output=requirements.txt
+
+
+
+FROM alpine:3.20 AS runner
+
+RUN addgroup web && adduser -D -G web web && install -d -D -o web -g web -m 700 /source
+WORKDIR /source
+RUN apk add --no-cache python3 py3-pip uvicorn
+
+COPY --from=builder /source/requirements.txt /tmp
+RUN pip install --break-system-packages --no-cache-dir --upgrade -r /tmp/requirements.txt && rm /tmp/requirements.txt
+
+USER web
+COPY --chown=web:web . .
+
+ENTRYPOINT ["python", "-m", "uvicorn", "api_server.main:app", "--host", "0.0.0.0", "--port", "8080"]

api_server/docker/Makefile

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+SHELL := bash
+.ONESHELL:
+.SHELLFLAGS := -eu -o pipefail -c
+.DELETE_ON_ERROR:
+MAKEFLAGS += --warn-undefined-variables
+MAKEFLAGS += --no-builtin-rules
+OS:=$(shell uname -s)
+
+ifeq ($(origin .RECIPEPREFIX), undefined)
+  $(error This Make does not support .RECIPEPREFIX. Please use GNU Make 4.0 or later)
+endif
+.RECIPEPREFIX = >
+
+IMAGE_NAME:= gateway-test
+TARGET :=
+
+.PHONY: help
+help:
+> @grep -h "##" $(MAKEFILE_LIST) | grep -v grep | sed -E 's/^([^:]*): *## */\1:  /'
+
+.PHONY: build
+build: ## Build the docker image.
+> docker build --tag $(IMAGE_NAME) --target=$(TARGET) --file Dockerfile ../
+
+.PHONY: shell
+shell: ## Launch an interactive shell inside the docker image.
+shell: build
+> docker run --rm -i -t --entrypoint /bin/sh --mount type=tmpfs,destination=/tmp $(IMAGE_NAME)
+
+.PHONY: clean
+clean:
+> docker rmi $(IMAGE_NAME)

api_server/docker/docker-compose.yaml

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+name: apiserver
+
+services:
+  api_server:
+    build:
+      context: ../
+      dockerfile: ./docker/Dockerfile
+      target: runner
+    container_name: api-server
+    ports:
+      - "8080:8080"
+    restart: always
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:8080/_health"]
+      interval: 1m30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
+      start_interval: 5s