Linux Busybox Http Server
Linux Busybox Http Server Occasionally I find myself needing a simple http server for testing or rendering static content. One of the simplest tools I found for this is the…
Kubernetes and NSX-T Predefined Rules
Kubernetes and NSX-T Predefined Rules Micro-segmentation is a crucial part of any Kubernetes production environment. With Kubernetes and NSX-T, micro-segmentation is realized as NSX-T Distributed Firewall Rules. There are two…
Kubernetes RBAC and Enterprise PKS
Kubernetes RBAC and Enterprise PKS This blog covers Kubernetes RBAC, Role-Based Access Control, with Enterprise PKS. It uses an OIDC connection to AD/LDAP. The blog demonstrates obtaining credentials as a…
Kubernetes Ingress with Heptio Contour
Introduction This blog covers deploying the Contour ingress controller and demonstrates its use with a Ingress and IngressRoute examples. The Contour ingress controller will be deployed on my local system…
Kubernetes Cluster on Virtualbox using Kubeadm
Introduction This post describes a simple process I use to stand up a Kubernetes cluster using kubeadm, vagrant, and virtualbox. I use Ubuntu for my target OS. Once you stand…
Kubernetes Sidecar Container Example
Introduction This post demostrates the sidecar container. A sidecar container is generally used to monitor something on the primary application and perform some task on that information alleviating the primary…
Creating a Kubernetes Exec ReadinessProbe
Introduction This post demonstrates an exec readinessProbe. It uses a check for DNS to establish readiness. Other kinds of exec probes could be the existance of a file, access to…
Mounting Secrets in Kubernetes Containers
Introduction There are a couple ways to add secrets to containers in Kubernetes; as volumes, or as environmental variables. This post describes adding the secret using volumes. We will create…
Configuring Terraform GCP Credentials
Introduction This post covers various methods to configure terraform with Google Cloud Platform credentials. It assumes the terraform project structure of provider.tf, variables.tf, terraform.tfvars, etc. Terraform provider.tf, variables.tf, and instance.tf…
Kubernetes Simple Development Box
Introduction This post covers a method to stand up a simple isolated Kubernetes environment using Minikube with the --vm-driver=none option and Vagrant. The --vm-driver option is used to specify which…