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#Docker

6 articles found

#DockerClear all
Diagram of Which push failure is yours?: 1. Read the error, 2. blob unknown, image digest, 3. Fix one, 4. timeout awaiting headers, 5. Fix two.
3 min
ContainersIntermediateNew

docker push Failing Since Docker 29.7? Two Causes

Since Docker 29.7, docker push can fail with blob unknown to registry on GitLab or with timeout awaiting response headers on slow registries. How to tell which one you have, and what fixes each.

#Docker#CI/CD

Neeraj Jha

Diagram of Will pip install here?: 1. You run pip install, 2. Inside a venv?, 3. Marker file present?, 4. pip.conf override?, 5. Refused.
3 min
ScriptingBeginnerNew

pip Says externally-managed-environment: What to Do

Why pip install now fails with externally-managed-environment on Ubuntu 24.04, Debian 12 and Homebrew, and the three fixes that work: a venv, pipx, or apt. Plus why it passes in GitHub Actions and fails in docker build.

#Python#Docker#Linux

Neeraj Jha

A CycloneDX SBOM excerpt beside what an SBOM answers and the questions it does not.
8 min
SecurityIntermediate

SBOMs: What They Answer, and What They Do Not

Most teams generate an SBOM and never read one. The single question it answers well, the four things it does not, and the difference between a compliance artifact and an operational one.

#CI/CD#Docker

Neeraj Jha

215
A five-step container hardening list beside a docker run command that drops capabilities and runs read-only.
10 min
SecurityAdvanced

Securing Docker Containers, in Order of What It Buys You

The same ten-item checklist, ordered by the threat each item actually closes — and honest about which three matter most and what none of them protect you from.

#Docker#Linux

Neeraj Jha

Updated

169

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Diagram: Prometheus scraping metrics from exporters and an app, feeding Grafana dashboards and Alertmanager.
7 min
MonitoringBeginner

Monitoring Your Infrastructure with Prometheus and Grafana

Set up a production-grade monitoring stack with Prometheus and Grafana — metrics collection, PromQL queries, alerting, and dashboards.

#Prometheus#Grafana#Docker

Neeraj Jha

Updated

489
Diagram: a Deployment owns a ReplicaSet that keeps three Pods running on nodes, with a Service selecting them by label.
7 min
ContainersIntermediate

Kubernetes 101: The One Idea, Then the Nouns

Kubernetes explained through the control loop under Pods, Deployments and Services, so you can predict what the cluster will do, not just name its parts. Most introductions stop at the nouns.

#Kubernetes#Docker#Helm

Neeraj Jha

Updated

599