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Linux Ops Smart Journey

The operations journey never stops—pursuing excellence endlessly.

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Latest from Linux Ops Smart Journey

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Linux Ops Smart Journey

Mar 4, 2025 · Operations

How to Monitor Hybrid Cloud with Prometheus: Fix Missing Physical Machine Targets

This article explains why Prometheus static and Kubernetes service discovery configurations can cause physical‑machine node‑exporter targets to disappear in hybrid cloud environments, analyzes the relabel rule issue, and provides a reusable configuration that separates and correctly labels both static and dynamic targets.

hybrid-cloudnode_exporterrelabel

0 likes · 4 min read

How to Monitor Hybrid Cloud with Prometheus: Fix Missing Physical Machine Targets

Linux Ops Smart Journey

Feb 27, 2025 · Information Security

Build Military‑Grade Kafka Security in Four Easy Steps

This guide walks you through four progressive stages—basic configuration, SSL encryption, SCRAM authentication, and combined SSL+SASL—showing how to harden Kafka with certificates, keystores, and client settings to achieve financial‑level protection.

Distributed MessagingKafkaSASL

0 likes · 9 min read

Build Military‑Grade Kafka Security in Four Easy Steps

Linux Ops Smart Journey

Feb 25, 2025 · Cloud Native

How to Retrieve ServiceAccount Tokens in Kubernetes 1.24+ Without Legacy Secrets

Starting with Kubernetes 1.24, automatic ServiceAccount token Secrets are deprecated; this guide explains the core changes, shows how to manually create token Secrets, extract tokens, and verify permissions using command‑line, API calls, and RBAC inspection, plus common troubleshooting steps.

KubernetesRBACServiceAccount

0 likes · 5 min read

How to Retrieve ServiceAccount Tokens in Kubernetes 1.24+ Without Legacy Secrets

Linux Ops Smart Journey

Feb 18, 2025 · Cloud Native

Deploy Filebeat with Helm on Kubernetes: Automated Log Collection to Kafka

This step‑by‑step guide shows how to use a Helm chart to deploy Filebeat in a Kubernetes cluster, automatically collect container logs, and forward them to a Kafka cluster for reliable, scalable observability.

FilebeatHelmKafka

0 likes · 7 min read

Deploy Filebeat with Helm on Kubernetes: Automated Log Collection to Kafka

Linux Ops Smart Journey

Feb 11, 2025 · Cloud Native

Deploy Elasticsearch on Kubernetes with Helm: Step‑by‑Step Guide

Learn how to containerize and deploy Elasticsearch using Helm on a Kubernetes cluster, covering chart download, certificate generation, secret creation, configuration files, and verification steps, enabling secure, scalable search capabilities in a cloud‑native environment.

ElasticsearchHelmKubernetes

0 likes · 11 min read

Deploy Elasticsearch on Kubernetes with Helm: Step‑by‑Step Guide

Linux Ops Smart Journey

Jan 24, 2025 · Cloud Native

Master Multi‑Architecture Docker Images with Buildx: A Step‑by‑Step Guide

This article explains why multi‑architecture container images are essential, introduces Docker Buildx and its key features, and provides a complete walkthrough—from installing the plugin and configuring a builder to creating and pushing multi‑arch images—complete with practical code examples.

CI/CDMulti-Archbuildx

0 likes · 8 min read

Master Multi‑Architecture Docker Images with Buildx: A Step‑by‑Step Guide

Linux Ops Smart Journey

Jan 23, 2025 · Cloud Native

How to Deploy CephFS Provisioner on Kubernetes with Helm

This guide walks through creating Ceph storage pools, configuring CephFS, and using Helm to deploy the CephFS CSI provisioner on a Kubernetes cluster, including verification steps and tips for reliable, high‑performance persistent storage.

CSICephFSHelm

0 likes · 10 min read

How to Deploy CephFS Provisioner on Kubernetes with Helm

Linux Ops Smart Journey

Jan 22, 2025 · Cloud Native

Deploy Ceph RBD Provisioner on Kubernetes with Helm in Minutes

This step‑by‑step guide explains how to set up a Ceph RBD provisioner on a Kubernetes cluster using Helm, covering storage pool creation, user configuration, Helm chart values, installation commands, and verification procedures to ensure reliable persistent storage.

CephHelmKubernetes

0 likes · 9 min read

Deploy Ceph RBD Provisioner on Kubernetes with Helm in Minutes

Linux Ops Smart Journey

Jan 19, 2025 · Cloud Native

How to Integrate GitLab with External MinIO and CertManager for Secure Cloud‑Native Storage

This guide walks you through configuring GitLab to use an external MinIO object store and CertManager for TLS certificates, covering credential setup, bucket creation, Helm chart adjustments, secret management, and verification steps to achieve a secure, efficient cloud‑native deployment.

GitLabMinIOS3

0 likes · 9 min read

How to Integrate GitLab with External MinIO and CertManager for Secure Cloud‑Native Storage

Linux Ops Smart Journey

Jan 15, 2025 · Cloud Native

Why Switch from Docker to Containerd? A Step‑by‑Step Kubernetes Migration Guide

This guide explains why many organizations are moving from Docker to the lighter, more efficient containerd runtime in Kubernetes, outlines the benefits such as performance, security, and simplified architecture, and provides detailed preparation steps and migration commands to ensure a smooth transition.

Kubernetescloud-nativecontainerd

0 likes · 8 min read

Why Switch from Docker to Containerd? A Step‑by‑Step Kubernetes Migration Guide