• Using kubectl to get helm release information

    2 min read

    kubectl helm Kubernetes releases secrets CLI

    While Helm provides the convenient helm ls -A command to list all releases across namespaces, there are situations where helm CLI might not be available. We can still retrieve similar information out of the helm metadata stored as Kubernetes secrets.

    $ helm ls -A
NAME            NAMESPACE       REVISION    UPDATED                                    STATUS      CHART                   APP VERSION
metrics-server  kube-system     1           2025-07-14 10:00:16.115363827 +0000 UTC    deployed    metrics-server-1.0.0    0.1.0
prometheus      monitoring      2           2025-07-14 10:05:45.362196303 +0000 UTC    deployed    prometheus-2.0.0        0.2.0
my-app          default         3           2025-07-14 10:10:46.213184797 +0000 UTC    deployed    my-app-1.2.3            0.3.0

    14/07/2025

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  • Upgrading a ROSA Cluster on AWS

    5 min read

    ROSA OpenShift AWS cluster upgrade CLI Red Hat

    Keeping your ROSA (Red Hat OpenShift Service on AWS) cluster up to date is essential for getting the latest features, performance improvements, and security patches. Fortunately, Red Hat provides a CLI tool (rosa) that allows you to handle upgrades.

    10/07/2025

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  • kubectl: Finding the OpenShift Console URL

    1 min read

    kubectl OpenShift Web Console route CLI console

    When working on an OpenShift cluster, it’s common to need the Web Console URL, especially when setting up a new environment or giving access to other users.

    Rather than navigating through RedHat portal or guessing the domain, you can use kubectl to directly query the route object and retrieve the console's public URL.

    09/07/2025

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  • yq: Extracting Objects from Kubernetes Manifests

    1 min read

    yq Kubernetes YAML Secret manifest extraction

    When working with Kubernetes manifests that contain multiple resources, you might need to extract specific objects out of a large document. The yq command-line tool provides powerful filtering capabilities to select and extract individual resources from multi-document YAML files.

    In this post, we'll explore how to use yq's select function to do that.

    23/06/2025

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  • kubectl: Streaming Logs from Multiple Pods

    2 min read

    kubectl logs Kubernetes Pod streaming troubleshooting

    When troubleshooting applications in Kubernetes, you often need to monitor logs from multiple pods simultaneously. The kubectl logs command provides powerful options to stream logs from several pods at once using label selectors.

    In this post, we'll explore how to use kubectl logs with the selector flag to monitor multiple pods in real-time.

    15/05/2025

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kubectl Helm ROSA openshift yq Linkerd Argo Rollouts Rollouts Capsule Pod MutatingAdmissionPolicy MutatingAdmissionPolicyBinding kind plugin custom command Argo Workflows CronWorkflow StatefulSet Workflow Kaniko WorkflowTemplate install kubernetes security Pod Security Standards port-forward socat operator-sdk golang Pushgateway RBAC Rule troubleshooting APIRequestCount affinity topologySpreadConstraints Route ExternalSecret Secret jsonpath ServiceAccount Ingress k3s letsencrypt tcpdump ssh CRD additionalPrinterColumns Velero query PV Operator Role ClusterRole web-console operator oc-mirror Secrets Manager tekton context Policy enforcement Rules Project ConfigMap Environment IngressRoute redirect RDS psql API server S3 patch file apply selector minikube arm64 colima EKS-connector SecurityContextConstraint SecretStore scripting CRC credentials Deployment valueFrom setup helm StorageClass tagging EBS externalDNS ALB HPA convert API version example shipwright ECR imagePullSecrets ENI subnet krew blame cloud provider etcd availability zones CoreDNS backend state podAntiAffinity Composite images GKE activeDeadlineSeconds Job lifetime bestby IRSA label annotation PersistentVolume Volume fsGroup vpa cluster autoscaler Karpenter provider kubernetes_manifest fsGroupChangePolicy container escape spot instances termination handler persistentVolumeReclaimPolicy fieldPath upgrade privileged network NetworkPolicy bash ps longhorn ASCP QoD raspberry pi drain evict uncordon kubeconfig config view logs admission controller hook postStart preStop deprecations gp3 get-all taints securityGroup probe readinessProbe livenessProbe tolerations explain MutatingWebhook startupProbe RollingUpdate Recreate PDB emptyDir netstat ss autoscale Kubeconfig initContainers DNS tree DaemonSet stern tail LimitRange resource limits restartPolicy system-upgrade-controller rolling update history undo Volumes awsElasticBlockStore change-cause set image imperative hostAliases imagePullPolicy metrics-server Service overlay agent nodes declarative ELB HTTPS alpine package nodeSelector scheduler kubie api-versions events multiple containers SecretKeyRef ReplicaSet NodePort Pod restart rollout deployment nginx-contoller ValidatingWebhookConfiguration error recovery httpHeaders uid securityContext exec interactive LoadBalancer IAM scale replicas nodeName externalName namespace Cronjob multinode template yaml unused-volumes diff