Skip to main content

Availability Zone Disruption

Availability Zones (AZs) are nothing but data centers within a region. For example, North Virginia has the maximum of 6 AZs. An AZ is geographically separated from another AZ. Suppose a natural calamity, like earthquake occurs, in the region of an AZ, say 1A, the entire AZ will not be available. This is called Availability Zone Disruption.

In such cases, we should make our applications highly available by scaling them across other AZs. Minimum good number of AZs is 2.

Labels:

Comments

Post a Comment

Popular posts from this blog

How to install/upgrade/downgrade kubectl in Linux (Ubuntu)?

To install the latest version: curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl" curl -LO "https://dl.k8s.io/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl.sha256" echo "$(<kubectl.sha256) kubectl" | sha256sum --check sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl kubectl version --client kubectl version To install a specific (v1.19.0) version: curl -LO "https://dl.k8s.io/release/v1.19.0/bin/linux/amd64/kubectl" curl -LO "https://dl.k8s.io/v1.19.0/bin/linux/amd64/kubectl.sha256" echo "$(<kubectl.sha256) kubectl" | sha256sum --check sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl kubectl version --client kubectl version This will install kubectl client. Run minikube start to install kubectl server.
Post a Comment
Read more

Application Load Balancer (ALB)

The ALB spans all subnets in a VPC i.e., it is not inside a subnet but VPC. ALB is bound to Target Groups (TGs). TGs are bound to subnets.
Post a Comment
Read more