Setting Up Flask ORM with SQLAlchemy and Database Migrations
To use an ORM in Flask, install the required packages:
pip3 install sqlalchemy flask-sqlalchemy
Create a MySQL database for your application:
CREATE DATABASE flask DEFAULT CHARSET utf8 COLLATE utf8_general_ci;
Configure the database URI in your Flask app:
app.config['SQLALCHEMY_DATABASE_URI'] = 'mysql://root:123456@localhost:3306/flask'
Init ...
Posted on Thu, 18 Jun 2026 16:52:43 +0000 by sunnypal
Migrating GitLab Omnibus Instances Between Docker Hosts and Resolving Permission Errors
Environment Specifications
OS: CentOS 7
Container Engine: Docker v26.0.0
Image: twang2218/gitlab-ce-zh
Migration Workflow
Pre-Migration Preparation
Identify the initial launch configuration from the source machine.
docker inspect --format='{{json .HostConfig.PortBindings}}' gitlab > bindings.json
Document volume mounts to ensure consisten ...
Posted on Sun, 17 May 2026 18:41:23 +0000 by ElectricShaka
Flask to FastAPI: A Comparative Guide to Common Patterns
Installation and Basic Application
Flask
pip install flask
Other package managers such as Poetry, Pipenv, and Conda also work. For example:
poetry add flask
FastAPI
pip install fastapi uvicorn
FastAPI does not ship with a built-in development server; Uvicorn is the recommended ASGI server.
A minimal "Hello, world" application:
Flas ...
Posted on Fri, 15 May 2026 01:45:57 +0000 by dakkonz
InfluxDB Data Migration Techniques
InfluxDB provides multiple approaches for migrating time-series data between systems or performing backups.
Exporting Data
Command-Line Query Export
The influx command-line interface allows direct querying and exporting of measurements to external files.
influx -database 'target_db' -execute 'SELECT * FROM sensor_data' -format 'csv' > backup ...
Posted on Mon, 11 May 2026 06:44:44 +0000 by agent47