Category Archives: Amazon Web Services

Amazon Web Services is a subsidiary of Amazon that provides on-demand cloud computing platforms to individuals, companies and governments, on a paid subscription basis.

Kubernetes: part 5 — RBAC authorization with a Role and RoleBinding example

26 March 2020

 The next task is to add a new user who will have access to check pods state and watch logs – any other operations must be prohibited. AWS EKS uses AWS IAM for authentification in a Kubernetes cluster (check the Kubernetes: part 4 – AWS EKS authentification, aws-iam-authenticator and AWS IAM post for details), bot… Read More »

AWS: CloudFormation – Nested Stacks and stacks parameters Import/Export

29 February 2020

 Nested Stacks in AWS CloudFormation are stacks, created from another, a “parent”, stack using AWS::CloudFormation::Stack. The main idea behind the Nested Stacks is to avoid writing superfluous code and to make templates reusable. Instead, a template is created only once, stored in an S3 bucket, and during stacks creation – you just refer to it.… Read More »

Kubernetes: running metrics-server in AWS EKS for a Kubernetes Pod AutoScaler

15 February 2020

 Assuming, we already have an AWS EKS cluster with worker nodes. In this post – we will connect to a newly created cluster, will create a test deployment with an HPA – Kubernetes Horizontal Pod AutoScaler and will try to get information about resources usage using kubectl top. Kubernetes cluster Create a test cluster using… Read More »

AWS: RDS Certificate Authority SSL certificate upgrade

22 November 2019

 We started receiving emails from AWS with notifications to update RDS Certificate Authority certificates. It’s time to do it, so let’s start from our Dev, then will repeat on Staging and Production environments. W eare using common AWS RDS MariaDB instances, and the upgrade documentation is available here>>>. The process itself is really simple and… Read More »

dnsmasq: AWS – “Temporary failure in name resolution”, logs, debug and dnsmasq cache size

28 October 2019

 We are using AWS VPC DNS and sometimes facing with errors like “php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution“. The only advice from AWS tech. support was to configure a local dnsmasq service to act as a local DNS cache, but I did this already year ago and this issue happens once in 1-2-3… Read More »

AWS: Redshift – quick start and SQL-workbench connection config

18 October 2019

 Our data-analytics team eventually started to play with an AWS Redshift cluster instead of the MariaDB RDS service. Actually, the current task is to spin up a simple Proof of Concept Redshift’s cluster in the AWS. Let’s do it quickly, without details – if this will go to the Production, I’ll add another post with… Read More »

AWS: create an Elastic Container Registry and Jenkins deploy job

23 September 2019

 The task is to create an AWS ECR repository and add a Jenkins job to build and deploy Docker images to this repository. See the next part – Jenkins: Docker Compose deployment from Ansible with ECR authentication. AWS ECR Go to the ECR, click Get Started, set a new repository name: Lave Mutable, so you’ll be… Read More »