Deploy a new version of a task in an ECS Fargate cluster

To deploy the new version of a Docker container image and launch new tasks with the new version Build and push the new Docker image Build the new Docker container image Push the new image to ECR (Elastic Container Registry) Create a new revision of the ECS Task Definition Open the ECS section of the […]

Attach an AWS EBS volume to a Linux server

Format and mount the volume List the available disk devices and their mount points The nvme1n1 volume is not yet mounted Create a partition on the volume List the existing partitions Create a new partition Check the partition list lsblk Detect the new partition with If there is a file system on the partition to […]

Migrating from Chef Client version 13 to 15

Syntax changes There are breaking changes between Chef Client version 13 and the newer versions, make sure you update your Chef cookbooks to make them work with the new version of the Chef Client. Resource Since version Old syntax New syntax Notes logger Client 14.0 keyword, cannot use it as a variable or parameter name […]

Computer failed to join domain from its current workgroup ‘WORKGROUP’ with following error message: The system cannot open the device or file specified.

When you use PowerShell to join a Windows server to the domain make sure the -OUPath is correct. Computer failed to join domain from its current workgroup ‘WORKGROUP’ with following error message: The system cannot open the device or file specified. In this case we wanted to place the joined computers in the Computers folder, […]

Computer ‘…’ failed to join domain. The value provided as the current password is incorrect.

Computer ‘…’ failed to join domain ‘…’ from its current workgroup ‘WORKGROUP’ with following error message: Unable to update the password. The value provided as the current password is incorrect. If you can join the computer to a domain using the UI, but the PowerShell script fails with the error message above, make sure you […]

Set the environment name in Chef Test Kitchen

To specify the environment name in the .kitchen.yml file Create a JSON environment file. Chef Zero used by Test Kitchen does not understand YAML or Ruby, we need to use JSON. In your cookbook’s root directory create a directory for environment files Create the myenv.json environment file in the environments directory. Specify the environment name […]

DevOps Engineering part 1. (Ubuntu server) – Install the DevOps development tools on Ubuntu server

Ubuntu server does not have a user interface, we will use the terminal to install the DevOps tools. Terraform On your workstation open a web browser and navigate to https://www.terraform.io/downloads.html to get the version of the latest Terraform release. Substitute the x.x.x with the latest version AWS CLI To install AWS CLI with the package […]