initial

.deploy/deploy-dev.yaml

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+version: "3.4"
+
+
+services:
+  locks:
+    image: mathwave/sprint-repo:locks
+    networks:
+      - locks-development
+    environment:
+      MONGO_HOST: "mongo.develop.sprinthub.ru"
+      MONGO_PASSWORD: $MONGO_PASSWORD_DEV
+    deploy:
+      mode: replicated
+      restart_policy:
+        condition: any
+      update_config:
+        parallelism: 1
+        order: start-first
+
+networks:
+  locks-development:
+    external: true

.deploy/deploy-prod.yaml

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+version: "3.4"
+
+
+services:
+  locks:
+    image: mathwave/sprint-repo:locks
+    networks:
+      - locks
+    environment:
+      MONGO_HOST: "mongo.sprinthub.ru"
+      MONGO_PASSWORD: $MONGO_PASSWORD_PROD
+    deploy:
+      mode: replicated
+      restart_policy:
+        condition: any
+      update_config:
+        parallelism: 1
+        order: start-first
+
+networks:
+  locks:
+    external: true

.gitea/workflows/deploy-dev.yaml

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+name: Deploy Dev
+
+on:
+  pull_request:
+    branches:
+      - dev
+    types: [closed]
+
+jobs:
+  build:
+    name: Build
+    runs-on: [ dev ]
+    steps:
+      - name: login
+        run: docker login -u mathwave -p ${{ secrets.DOCKERHUB_PASSWORD }}
+      - name: checkout
+        uses: actions/checkout@v4
+        with:
+          ref: dev
+      - name: build
+        run: docker build -t mathwave/sprint-repo:locks .
+  push:
+    name: Push
+    runs-on: [ dev ]
+    needs: build
+    steps:
+      - name: push
+        run: docker push mathwave/sprint-repo:locks
+  deploy-dev:
+    name: Deploy dev
+    runs-on: [prod]
+    needs: push
+    steps:
+      - name: login
+        run: docker login -u mathwave -p ${{ secrets.DOCKERHUB_PASSWORD }}
+      - name: checkout
+        uses: actions/checkout@v4
+        with:
+          ref: dev
+      - name: network
+        run: docker network create -d overlay --attachable locks-development || true
+      - name: deploy
+        env:
+          MONGO_PASSWORD_DEV: ${{ secrets.MONGO_PASSWORD_DEV }}
+        run: docker stack deploy --with-registry-auth -c ./.deploy/deploy-dev.yaml locks-development

.gitea/workflows/deploy-prod.yaml

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+name: Deploy Prod
+
+on:
+  pull_request:
+    branches:
+      - prod
+    types: [closed]
+
+jobs:
+  build:
+    name: Build
+    runs-on: [ dev ]
+    steps:
+      - name: login
+        run: docker login -u mathwave -p ${{ secrets.DOCKERHUB_PASSWORD }}
+      - name: checkout
+        uses: actions/checkout@v4
+        with:
+          ref: prod
+      - name: build
+        run: docker build -t mathwave/sprint-repo:locks .
+  push:
+    name: Push
+    runs-on: [ dev ]
+    needs: build
+    steps:
+      - name: push
+        run: docker push mathwave/sprint-repo:locks
+  deploy-prod:
+    name: Deploy prod
+    runs-on: [prod]
+    needs: push
+    steps:
+      - name: login
+        run: docker login -u mathwave -p ${{ secrets.DOCKERHUB_PASSWORD }}
+      - name: checkout
+        uses: actions/checkout@v4
+        with:
+            ref: prod
+      - name: network
+        run: docker network create -d overlay --attachable locks || true
+      - name: deploy
+        env:
+          MONGO_PASSWORD_PROD: ${{ secrets.MONGO_PASSWORD_PROD }}
+        run: docker stack deploy --with-registry-auth -c ./.deploy/deploy-prod.yaml locks

.gitignore

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+# Django #
+*.log
+*.pot
+*.pyc
+__pycache__
+db.sqlite3
+media
+data
+*/__pycache__
+
+# Backup files #
+*.bak
+
+# If you are using PyCharm #
+.idea
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/dictionaries
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.xml
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/gradle.xml
+.idea/**/libraries
+*.iws /out/
+
+# Python #
+*.py[cod]
+*$py.class
+
+# Distribution / packaging
+.Python build/
+develop-eggs/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.coverage.*
+.cache
+.pytest_cache/
+nosetests.xml
+coverage.xml
+*.cover
+.hypothesis/
+postgres-data
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# pyenv
+.python-version
+
+# celery
+celerybeat-schedule.*
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.venv
+env/
+ENV/
+venv/
+env.bak/
+venv.bak/
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+
+# Sublime Text #
+*.tmlanguage.cache
+*.tmPreferences.cache
+*.stTheme.cache
+*.sublime-workspace
+*.sublime-project
+
+# sftp configuration file
+sftp-config.json
+
+# Package control specific files Package
+Control.last-run
+Control.ca-list
+Control.ca-bundle
+Control.system-ca-bundle
+GitHub.sublime-settings
+
+# Visual Studio Code #
+.vscode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+.history

Dockerfile

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+FROM python:3.12
+
+RUN mkdir /usr/src/app
+WORKDIR /usr/src/app
+
+COPY requirements.txt requirements.txt
+RUN pip install -r requirements.txt
+
+COPY . .
+
+ENTRYPOINT ["python", "main.py"]

app/routers/acquire.py

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+import datetime
+import fastapi
+import pydantic
+
+from app.storage.mongo import locks
+from app.utils import time
+
+
+class RequestBody(pydantic.BaseModel):
+    name: str
+    ttl: int
+
+
+router = fastapi.APIRouter()
+
+
+@router.post('/api/v1/acquire', status_code=fastapi.status.HTTP_202_ACCEPTED, responses={'409': {'description': 'Conflict'}})
+async def execute(body: RequestBody):
+    try:
+        await locks.acquire(locks.Lock(name=body.name, locked_until=time.now() + datetime.timedelta(seconds=body.ttl)))
+    except Exception as e:
+        print(e)
+        raise fastapi.HTTPException(409)

app/routers/release.py

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+import datetime
+import fastapi
+import pydantic
+
+from app.storage.mongo import locks
+from app.utils import time
+
+
+class RequestBody(pydantic.BaseModel):
+    name: str
+    ttl: int
+
+
+router = fastapi.APIRouter()
+
+
+@router.post('/api/v1/release', status_code=fastapi.status.HTTP_202_ACCEPTED)
+async def execute(body: RequestBody):
+    await locks.release(locks.Lock(name=body.name, locked_until=time.now() + datetime.timedelta(seconds=body.ttl)))

app/storage/mongo/__init__.py

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+import os
+import motor
+import motor.motor_asyncio
+import pymongo
+
+
+MONGO_HOST = os.getenv('MONGO_HOST', 'localhost')
+MONGO_PASSWORD = os.getenv('MONGO_PASSWORD', 'password')
+
+CONNECTION_STRING = f'mongodb://mongo:{MONGO_PASSWORD}@{MONGO_HOST}:27017/'
+
+
+database: 'motor.MotorDatabase' = motor.motor_asyncio.AsyncIOMotorClient(CONNECTION_STRING).locks
+
+def create_indexes():
+    client = pymongo.MongoClient(CONNECTION_STRING)
+    database = client.get_database('locks')
+    database.get_collection('locks').create_index([
+        ('name', 1), 
+    ], unique=True)

app/storage/mongo/locks.py

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+import bson
+import datetime
+import pydantic
+
+from app.storage.mongo import database
+from app.utils import time
+from bson import codec_options
+
+
+collection = database.get_collection("locks", codec_options=codec_options.CodecOptions(tz_aware=True))
+
+
+class Lock(pydantic.BaseModel):
+    name: str
+    locked_until: pydantic.AwareDatetime
+
+
+async def acquire(lock: Lock):
+    await collection.insert_one(lock.model_dump())
+
+
+async def release(name: str):
+    await collection.delete_one({'name': name})

app/utils/time.py

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+import datetime
+
+
+now = lambda: datetime.datetime.now(datetime.UTC)

main.py

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+import fastapi
+import uvicorn
+
+from app.routers import acquire
+from app.routers import release
+
+from app.storage import mongo
+
+
+app = fastapi.FastAPI()
+
+app.include_router(acquire.router)
+app.include_router(release.router)
+
+mongo.create_indexes()
+
+
+if __name__ == '__main__':
+    uvicorn.run(app, host="0.0.0.0", port=80)

requirements.txt

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+annotated-types==0.7.0
+anyio==4.6.2.post1
+APScheduler==3.10.4
+click==8.1.7
+dnspython==2.7.0
+fastapi==0.115.4
+h11==0.14.0
+idna==3.10
+motor==3.6.0
+pydantic==2.9.2
+pydantic_core==2.23.4
+pymongo==4.9.2
+pytz==2024.2
+redis==5.2.0
+six==1.16.0
+sniffio==1.3.1
+starlette==0.41.2
+typing_extensions==4.12.2
+tzlocal==5.2
+uvicorn==0.32.0