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⚡ AI Lessons
Dev.to · The Cyber Sidekick
☁️ DevOps & Cloud
⚡ AI Lesson
2w ago
Add a streaming sidecar so kubectl logs can see a legacy app (CKA)
A CKA Workloads & Scheduling walkthrough: an app logs to a file, so kubectl logs returns nothing at all. Fix it the documented way with a streaming sidecar: add
Dev.to · The Cyber Sidekick
☁️ DevOps & Cloud
⚡ AI Lesson
2w ago
Add a WaitForFirstConsumer StorageClass and hand it the default (CKA)
A CKA Storage walkthrough: create a StorageClass that reuses the cluster's existing provisioner with volumeBindingMode WaitForFirstConsumer, then move the stora
Dev.to · The Cyber Sidekick
☁️ DevOps & Cloud
⚡ AI Lesson
3w ago
Name a container port, then expose it with a NodePort Service (CKA)
A CKA Services & Networking walkthrough: add a port specification named web (80/TCP) to the existing webserver container of the catalog Deployment, then expose
Dev.to · The Cyber Sidekick
☁️ DevOps & Cloud
3w ago
Create a PriorityClass, patch the Deployment, let the scheduler evict the neighbors (CKA)
A CKA Workloads & Scheduling walkthrough: find the highest user-defined PriorityClass (ignore system-*), create high-priority one below it (999999), and patch t
Dev.to · The Cyber Sidekick
☁️ DevOps & Cloud
⚡ AI Lesson
1mo ago
Install Argo CD with Helm, and survive the missing-CRD trap (CKA)
A CKA Cluster Architecture, Installation & Configuration walkthrough: add the argo Helm repo, render a helm template pinned to chart 7.7.3 with crds.install=fal
Dev.to · The Cyber Sidekick
☁️ DevOps & Cloud
⚡ AI Lesson
1mo ago
Install Calico and prove NetworkPolicy enforcement (CKA Services & Networking)
A CKA Services & Networking walkthrough: the exam offers flannel or Calico, but 'must support NetworkPolicy enforcement' eliminates flannel. Install Calico with
Dev.to · The Cyber Sidekick
☁️ DevOps & Cloud
⚡ AI Lesson
1mo ago
2026 CKA Exam - Scenario 8 Install a CNI and fix the flannel pod-CIDR mismatch (CKA Services & Networking)
Install a CNI and fix the pod-CIDR mismatch The cluster is running, but every node is...
Dev.to · The Cyber Sidekick
☁️ DevOps & Cloud
⚡ AI Lesson
1mo ago
GitOps at Scale: How Event-Driven and AI-Assisted Deployments Are Replacing Manual Environment Promotion
Learn how event-driven automation and AI-powered quality gates enable autonomous GitOps deployments at scale, replacing manual approval workflows.
Dev.to · The Cyber Sidekick
☁️ DevOps & Cloud
1mo ago
CKA Scenario 5 - Force nginx to TLS 1.3 with a ConfigMap edit + rolling restart (CKA Workloads)
Force nginx to TLS 1.3 An nginx server is accepting an old TLS version, and the exam wants...
Dev.to · The Cyber Sidekick
☁️ DevOps & Cloud
⚡ AI Lesson
1mo ago
Prepare a node for kubeadm with cri-dockerd (CKA Installation)
A CKA Installation walkthrough with no copy-paste manifest: prepare a Debian node for kubeadm by installing the cri-dockerd CRI shim with dpkg, enabling its soc
Dev.to · The Cyber Sidekick
☁️ DevOps & Cloud
⚡ AI Lesson
2mo ago
WebAssembly on Kubernetes: The Next Generation Runtime for Edge and Serverless Workloads
Explore WebAssembly on Kubernetes for edge and serverless workloads. Learn how WASM enables sub-millisecond cold starts and compact binaries as a first-class ru
Dev.to · The Cyber Sidekick
☁️ DevOps & Cloud
⚡ AI Lesson
2mo ago
CKA Exam 2026 Scenario 3 - Pick the least-permissive NetworkPolicy to connect two namespaces (CKA)
The Least-Permissive Policy Two deployments in two namespaces need to talk, but a...
Dev.to · The Cyber Sidekick
☁️ DevOps & Cloud
⚡ AI Lesson
2mo ago
Recover a deleted Deployment from a Retain-policy volume (CKA Storage)
A CKA Storage walkthrough: a MariaDB Deployment was deleted but its PV uses Retain, so the data survived. Recreate the PVC, statically bind it to the retained v
Dev.to · The Cyber Sidekick
☁️ DevOps & Cloud
⚡ AI Lesson
2mo ago
CKA Exam study 2026 Scenario 1 - The etcd Endpoint Trap
The etcd Endpoint Trap A cluster migration just took your whole control plane offline. In...
Dev.to · The Cyber Sidekick
☁️ DevOps & Cloud
⚡ AI Lesson
2mo ago
OpenTelemetry CNCF Graduation: The Turning Point for Production AI Observability in Kubernetes
How OTel's graduation as a top-tier CNCF project is establishing the unified observability standard...
DeepCamp AI