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DevOps Operations Practice

We share professional insights on cloud-native, DevOps & operations, Kubernetes, observability & monitoring, and Linux systems.

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Latest from DevOps Operations Practice

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DevOps Operations Practice

Jun 17, 2024 · Operations

Key DevOps Metrics: Deployment Frequency, Lead Time, Change Failure Rate, MTTR, and Customer Satisfaction

This article explains essential DevOps metrics—including deployment frequency, lead time for changes, change failure rate, mean time to recovery, and customer satisfaction—detailing why they matter, how to measure them, and practical practices to improve each metric for more efficient and reliable software delivery.

Change Failure RateDevOpsLead Time

0 likes · 9 min read

Key DevOps Metrics: Deployment Frequency, Lead Time, Change Failure Rate, MTTR, and Customer Satisfaction

DevOps Operations Practice

Jun 16, 2024 · Fundamentals

Understanding the /proc Virtual Filesystem in Linux

This article explains the Linux /proc virtual filesystem, detailing its role as an in‑memory pseudo‑filesystem that provides comprehensive system and process information such as CPU, memory, uptime, process details, hardware, and filesystem data.

Filesystemprocprocess monitoring

0 likes · 4 min read

Understanding the /proc Virtual Filesystem in Linux

DevOps Operations Practice

Jun 11, 2024 · Information Security

Common Weak Passwords and Best Practices for Secure Password Creation

The article presents NordPass's annual most‑used password list, highlights the top ten weak passwords in China that can be cracked in seconds, explains why users choose them, and offers four practical recommendations for creating stronger, more secure passwords.

Information SecurityNordPassbest practices

0 likes · 3 min read

Common Weak Passwords and Best Practices for Secure Password Creation

DevOps Operations Practice

Jun 6, 2024 · Cloud Native

Step‑by‑Step Guide to Deploying an Enterprise‑Grade Harbor Private Registry

This article explains why enterprises need a private Docker registry, introduces the open‑source Harbor project, outlines its architecture and hardware/software requirements, and provides detailed installation, configuration, and usage instructions—including Docker, Docker‑Compose, and Harbor setup commands—to get a secure, CNCF‑certified container image repository up and running.

CNCFContainer SecurityDevOps

0 likes · 7 min read

Step‑by‑Step Guide to Deploying an Enterprise‑Grade Harbor Private Registry

DevOps Operations Practice

Jun 5, 2024 · Information Security

Introducing KeePass: A Secure Open-Source Password Manager and How to Use It

This guide explains why secure password management is crucial, introduces the open‑source KeePass manager, and provides step‑by‑step instructions for installing, configuring, and using its features such as group management and entry creation across platforms.

EncryptionKeePassPassword Management

0 likes · 6 min read

Introducing KeePass: A Secure Open-Source Password Manager and How to Use It

DevOps Operations Practice

Jun 3, 2024 · Cloud Native

Top 5 Popular Kubernetes CNI Network Plugins: Flannel, Calico, Weave Net, Cilium, and Canal

This article introduces the five most popular Kubernetes CNI network plugins—Flannel, Calico, Weave Net, Cilium, and Canal—detailing their features, typical use‑cases, and installation commands to help you choose the right solution for your cluster.

CNICalicoCanal

0 likes · 5 min read

Top 5 Popular Kubernetes CNI Network Plugins: Flannel, Calico, Weave Net, Cilium, and Canal

DevOps Operations Practice

Jun 2, 2024 · Cloud Computing

Core Components, Features, and Use Cases of OpenStack

This article introduces OpenStack as an open‑source cloud computing platform, outlines its ten core services such as Nova, Swift, and Keystone, highlights key characteristics like openness and modularity, and discusses typical public, private, and hybrid cloud deployment scenarios.

IaaSOpenStackcloud computing

0 likes · 5 min read

Core Components, Features, and Use Cases of OpenStack

DevOps Operations Practice

May 30, 2024 · Operations

Introducing Karma: A Prometheus Alert Dashboard Tool

This article introduces Karma, a Docker‑deployed Prometheus alert dashboard that aggregates multiple Alertmanager instances, explains its installation requirements, and details key features such as visual alert aggregation, tag‑based grouping, and silence management, positioning it as a valuable operations tool.

Alert DashboardAlertmanagerDocker

0 likes · 4 min read

Introducing Karma: A Prometheus Alert Dashboard Tool

DevOps Operations Practice

May 23, 2024 · Big Data

Understanding Elasticsearch: Architecture, Core Concepts, and How It Works

This article introduces Elasticsearch, an open‑source distributed search and analytics engine, explaining its architecture, core concepts such as clusters, nodes, shards, replicas, indices, inverted indexes, documents and fields, and how these components enable fast, scalable searching and data analysis.

ElasticsearchIndexingbig data

0 likes · 7 min read

Understanding Elasticsearch: Architecture, Core Concepts, and How It Works

DevOps Operations Practice

May 20, 2024 · Cloud Native

Four Leading Open‑Source Container Platforms: Docker, Podman, Containerd, and CRI‑O

This article introduces four leading open‑source container platforms—Docker, Podman, Containerd, and CRI‑O—detailing their core features, architecture, and use‑case advantages, helping readers understand each product’s strengths and suitability for modern cloud‑native and micro‑service deployments.

CRI-ODockerPodman

0 likes · 5 min read

Four Leading Open‑Source Container Platforms: Docker, Podman, Containerd, and CRI‑O