Technical guide
Get started with Linux cron jobs
Write crontab schedules, control the execution environment, capture output, and detect jobs that fail or never finish.
Technical guide
Find cron logs and detect missed jobs
Locate scheduler records, capture a task’s output and exit status, rotate its logs, and alert on failures or missing completion records.
Technical guide
Build a custom OpenTelemetry Collector with OCB
Pin a compatible OCB manifest, build the actual binary, validate a trace pipeline, and account for container and maintenance requirements.
Technical guide
Django logging: configuration, JSON, and request context
Configure Django loggers and handlers, preserve exception and request fields in JSON, avoid shared rotation across workers, and verify collection in Guance.
Technical guide
Django WebSockets with Channels: consumers, rooms, and deployment
Build Django Channels echo and room endpoints, validate messages and permissions, configure ASGI and Redis, and prepare persistent connections for production.
Technical guide
Get started with Docker Compose
Define a web application, PostgreSQL, and Redis in Compose, then understand startup order, service discovery, persistent volumes, and operational checks.
Technical guide
Docker Compose logs: filter and compare service output
Follow logs across a Compose project, select service replicas, export output, and verify centralized collection and multiline parsing.
Technical guide
Docker logging: drivers, rotation, and centralized collection
Choose Docker logging drivers, configure rotation and delivery mode, handle multiline records, and verify container log collection without losing driver compatibility.
Technical guide
The docker logs command: options and troubleshooting
Follow container output, filter by time, handle stdout and stderr, and understand logging-driver support, rotation, and restart history.
Technical guide
Docker networking: drivers, DNS, and published ports
Understand user-defined bridge networks, service discovery, port publishing, host networking, and practical checks for container connectivity.
Technical guide
Manage credentials with Docker Secrets
Understand Swarm secrets, Compose file mounts, platform differences, and a verified rotation process for container credentials.
Technical guide
Choose a .NET logging setup: ILogger, Serilog, NLog, or log4net
Compare the abstraction, providers, structured output, routing, and runtime compatibility that matter when selecting a .NET logging stack.