Python, backend engineering, and the cloud. By Piotr Rogulski.https://rogulski.it/https://rogulski.it/blog/knative-channel-subscription-with-sink-binding/https://rogulski.it/blog/knative-channel-subscription-with-sink-binding/Build an event-driven pipeline with Knative KafkaChannel, Subscriptions, and SinkBinding. Compare channels with brokers and connect Python event producers.Sat, 25 Feb 2023 20:45:00 GMTknativekuberneteskafkaevent-drivepythonhttps://rogulski.it/blog/troubleshooting-knative-with-kafka/https://rogulski.it/blog/troubleshooting-knative-with-kafka/Debug Knative Eventing with Kafka using kn and kubectl commands. Inspect services, revisions, triggers, Kafka sources, and event delivery.Tue, 24 Jan 2023 10:45:00 GMTpythonknativekafkakuberneteseventingtiphttps://rogulski.it/blog/smart-mock-by-side-effect-replace/https://rogulski.it/blog/smart-mock-by-side-effect-replace/Use Python unittest.mock side_effect with a custom iterator to return different values while preserving method arguments in mocked results.Tue, 17 Jan 2023 10:45:00 GMTpythonmockteststiltiphttps://rogulski.it/blog/kafka-consumer-knative-fastapi/https://rogulski.it/blog/kafka-consumer-knative-fastapi/Build an event-driven Python service with FastAPI, Kafka, and Knative on Kubernetes. Configure Kafka sources, brokers, and triggers to route events.Thu, 15 Sep 2022 19:45:00 GMTknativekuberneteskafkapythonfastapihttps://rogulski.it/blog/kubernetes-stuck-resource-action/https://rogulski.it/blog/kubernetes-stuck-resource-action/Diagnose a Kubernetes custom resource stuck during deletion and inspect its finalizers, using a Knative Broker example and kubectl commands.Mon, 04 Jul 2022 19:45:00 GMTkuberneteshttps://rogulski.it/blog/python-virtualenv-management/https://rogulski.it/blog/python-virtualenv-management/Manage Python versions and virtual environments on Apple M1 with pyenv, pyenv-virtualenv, and virtualenvwrapper. Install tools and switch between projects.Mon, 02 May 2022 03:45:00 GMTvirtualenvpyenvvirtualenvwrapperpythonapple m1https://rogulski.it/blog/install-psycopg2-on-apple-m1/https://rogulski.it/blog/install-psycopg2-on-apple-m1/Install psycopg2-binary on an Apple M1 Mac with Homebrew PostgreSQL and OpenSSL. Configure compiler flags and dependencies for the Python database adapter.Sun, 01 May 2022 18:45:00 GMTPostgreSQLpsycopg2pythonapple m1https://rogulski.it/django-multiselect-choice-admin/https://rogulski.it/django-multiselect-choice-admin/Add multi-select choice fields to Django admin using PostgreSQL ArrayField or JSONField. Compare default inputs, custom widgets, and admin form examples.Mon, 24 Jan 2022 15:45:00 GMTDjangoPythonDjango Admin Panelhttps://rogulski.it/dynamodb-with-fastapi/https://rogulski.it/dynamodb-with-fastapi/Connect FastAPI to AWS DynamoDB with a local Docker setup, Python application code, pytest tests, and Terraform configuration for your database table.Sat, 22 Jan 2022 12:01:58 GMTdynamoDBPythonAWSfastAPIhttps://rogulski.it/blog/pytest-httpx-vcr-respx-remote-service-tests/https://rogulski.it/blog/pytest-httpx-vcr-respx-remote-service-tests/Test async HTTPX requests with pytest and RESPX, then record and replay HTTP interactions with VCR.py. Includes fixtures, configuration, and examples.Sun, 24 Oct 2021 06:01:58 GMTPythonpytesttestshttpxvcrasynciohttps://rogulski.it/blog/python-typing-with-generic-typevar/https://rogulski.it/blog/python-typing-with-generic-typevar/Use Python Generic and TypeVar to build reusable, typed repository classes. Follow a practical example with type annotations checked by mypy.Fri, 15 Oct 2021 06:01:58 GMTtypingPythonhttps://rogulski.it/blog/aws-rds-ssl-connection-sqlalchemy/https://rogulski.it/blog/aws-rds-ssl-connection-sqlalchemy/Configure an SSL connection to PostgreSQL with SQLAlchemy, including AWS RDS certificates, a Python SSL context, and async engine connection settings.Wed, 13 Oct 2021 10:01:58 GMTAWSRDSPythonSQLAlchemySSLhttps://rogulski.it/blog/sqlalchemy-14-async-orm-with-fastapi/https://rogulski.it/blog/sqlalchemy-14-async-orm-with-fastapi/Build an async FastAPI backend with SQLAlchemy 1.4 ORM, PostgreSQL, and asyncpg. Configure database sessions, Alembic migrations, and your project structure.Sat, 09 Oct 2021 10:01:58 GMTPythonFastAPISQLAlchemyasynciohttps://rogulski.it/blog/whats-new-in-python-3-10/https://rogulski.it/blog/whats-new-in-python-3-10/Explore Python 3.10 features with code examples, including structural pattern matching, parenthesized context managers, and improvements to type hints.Mon, 04 Oct 2021 20:01:58 GMTPythonhttps://rogulski.it/blog/pre-commit-python/https://rogulski.it/blog/pre-commit-python/Configure Python pre-commit hooks with Black, isort, Flake8, and mypy to format code, sort imports, and check linting and types before each commit.Thu, 10 Jun 2021 10:01:58 GMTpre-commitgitblackhttps://rogulski.it/blog/fastapi-async-db/https://rogulski.it/blog/fastapi-async-db/Configure FastAPI with async PostgreSQL using databases and SQLAlchemy Core. Set up Docker, Alembic migrations, and tests for your Python backend.Sun, 06 Jun 2021 10:01:58 GMTFastAPIPythonPostgreSQLasyncioSQLAlchemyhttps://rogulski.it/blog/neovim-on-osx/https://rogulski.it/blog/neovim-on-osx/Install Neovim on macOS with Homebrew, manage plugins with vim-plug, and fix Python path errors by configuring the Python host in init.vim.Sun, 20 Dec 2020 10:01:58 GMTneovimvimconfigshttps://rogulski.it/blog/google-cloudbuild-ci-cd/https://rogulski.it/blog/google-cloudbuild-ci-cd/Configure Google Cloud Build to test and deploy a Python App Engine application, using Docker services, pytest, and Secret Manager in your CI/CD pipeline.Mon, 19 Oct 2020 10:01:58 GMTGCPCloudbuildPythonApp EngineCI & CDhttps://rogulski.it/blog/gatsby-contentful-markdown-jsx-component/https://rogulski.it/blog/gatsby-contentful-markdown-jsx-component/Render Markdown from Contentful in Gatsby with MDX. Configure Contentful image processing and embed custom JSX components in your blog content.Fri, 29 May 2020 10:01:58 GMTReactJSmarkdownblogGatsbyJShttps://rogulski.it/blog/react-material-checkbox-form-validation/https://rogulski.it/blog/react-material-checkbox-form-validation/Build a React registration form with Material-UI, React Hook Form, Yup, and TypeScript. Validate text inputs and a required checkbox with a code example.Sat, 16 May 2020 10:01:58 GMTReactJSmaterial-uiformsreact-hook-formhttps://rogulski.it/blog/aws-elastic-beanstalk-django/https://rogulski.it/blog/aws-elastic-beanstalk-django/Deploy a Django application to AWS Elastic Beanstalk, configure an RDS database, and run migrations, static file collection, and Django admin setup.Sun, 09 Jun 2019 10:01:58 GMTAWSElastic BeanstalkPythonDjangohttps://rogulski.it/blog/ftp-on-google-compute-engine/https://rogulski.it/blog/ftp-on-google-compute-engine/Set up a vsftpd FTP server on Google Compute Engine. Follow ten steps to configure certificates, users, passive ports, and Google Cloud firewall rules.Sat, 20 Apr 2019 10:01:58 GMTGCPFTPCompute Enginehttps://rogulski.it/blog/heroes-3-on-wine/https://rogulski.it/blog/heroes-3-on-wine/Install Heroes of Might and Magic 3 and Horn of the Abyss with Wine on Ubuntu Linux and macOS Mojave, using the GOG Complete edition installer.Mon, 21 Jan 2019 10:01:58 GMTHoMM3winelinuxgameshttps://rogulski.it/blog/gae-standard-py37-django/https://rogulski.it/blog/gae-standard-py37-django/Build and deploy a Django REST Framework API on Google App Engine Standard with Python 3.7, Cloud SQL, Cloud Tasks, and a local Docker environment.Mon, 24 Dec 2018 10:01:58 GMTGCPPythonDjangoApp Enginehttps://rogulski.it/blog/alexa-skill-in-python/https://rogulski.it/blog/alexa-skill-in-python/Build a joke-telling Alexa skill with Python and Falcon. Define intents, handle HTTP webhooks, and connect your application to the Alexa developer console.Wed, 07 Nov 2018 10:01:58 GMTalexaPythonAWShttps://rogulski.it/blog/hi-im-piotr/https://rogulski.it/blog/hi-im-piotr/Meet Piotr Rogulski, a Python developer sharing programming projects, lessons from web development, and experiments with bots, AWS, and Google Cloud.Fri, 02 Nov 2018 10:01:58 GMTblog