31st Week of 2021
Infrastructure as Code⚑
New: Introduce terraform and how to handle RDS secrets.
Terraform is an open-source infrastructure as code software tool created by HashiCorp. It enables users to define and provision a datacenter infrastructure using an awful high-level configuration language known as Hashicorp Configuration Language (HCL), or optionally JSON. Terraform supports a number of cloud infrastructure providers such as Amazon Web Services, IBM Cloud , Google Cloud Platform, DigitalOcean, Linode, Microsoft Azure, Oracle Cloud Infrastructure, OVH, or VMware vSphere as well as OpenNebula and OpenStack.
Velero is a tool to backup and migrate Kubernetes resources and persistent volumes.
You can run a given set of workloads either on few large clusters (with many workloads in each cluster) or on many clusters (with few workloads in each cluster).
Here's a table that summarizes the pros and cons of various approaches:
Figure: Possibilities of number of clusters from learnk8s.io article
fallocate -l 20G /path/to/file
It looks like American english uses
zwhile British uses
s, some examples:
Both forms are correct, so choose the one that suits your liking.