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Kubernetes

4 pages

  • kubectl cheatsheet: essential commands for Kubernetes

    In Posts 702 words 4 min

    KubernetesKubectlDevopsCliLinux

    kubectl is the primary interface to a Kubernetes cluster. This cheatheet covers routine operations — from context setup to pod debugging and namespace switching. All commands are verified against current kubectl versions (1.28+). Installation and …

    kubectl is the primary interface to a Kubernetes cluster. This cheatheet covers routine operations — from context setup to pod debugging and namespace switching. All commands are verified against current kubectl versions (1.28+). Installation and …

  • Creating User and Role in Kubernetes and Binding Them via RBAC

    In Posts 564 words 3 min

    KubernetesRbacDevopsSecurityLinux

    In Kubernetes there are no “users” in the traditional sense — there are ServiceAccounts and certificates, bound to roles through RBAC. Without proper configuration, anyone holding a kubeconfig gets full access to the cluster. Below is the complete …

    In Kubernetes there are no “users” in the traditional sense — there are ServiceAccounts and certificates, bound to roles through RBAC. Without proper configuration, anyone holding a kubeconfig gets full access to the cluster. Below is the complete …

  • kubectl whoami and Service Account Permission Checks

    In Posts 676 words 4 min

    KubernetesRbacSecurityKubectl

    When deploying an application to Kubernetes, the most common failure is a service account that cannot do what it should. Permission denied when creating a secret, rejection on list pods, refusal on update. kubectl whoami and kubectl auth can-i let …

    When deploying an application to Kubernetes, the most common failure is a service account that cannot do what it should. Permission denied when creating a secret, rejection on list pods, refusal on update. kubectl whoami and kubectl auth can-i let …

  • kind: Local Kubernetes in Docker

    In Posts 902 words 5 min

    KubernetesDockerDevopsLinuxLocal-Dev

    kind creates a Kubernetes cluster from Docker containers: control-plane and worker nodes are kindest/node images. Primary use cases are local development and CI. GitHub Actions has an official create-kind action that makes pipelines with K8s tests …

    kind creates a Kubernetes cluster from Docker containers: control-plane and worker nodes are kindest/node images. Primary use cases are local development and CI. GitHub Actions has an official create-kind action that makes pipelines with K8s tests …