TL;DR The message is a relay, not a reason. Ansible's service module ran systemctl start apache2, systemd ran apachectl start, apachectl exited non-zero. The reason is in journalctl -u apache2 -n 20 on the target. Three causes cover almost every case: something else on port 80 (AH00072: make_sock: could not bind to …

DevOps practices have grown in popularity as businesses try to produce software more quickly and effectively. Ansible is one of the tools that DevOps teams need to help automate and streamline their processes. Ansible is an open-source automation tool that makes it simple for users to automate their network devices, …

Ansible for Beginners: Learn the Fundamentals of IT Automation - Part 1 Ansible Installation: The Windows, Ubuntu, CentOS, and macOS Guide - Part 2 Ansible Project Structure: A Beginner's Guide to Inventory, Hosts, Roles, and Tasks - Part 3 Securing Ansible with SSH Keys: A Comprehensive Guide - Part 4 Ansible & …

TL;DR To concatenate strings, use interpolation - "${var.app}-${var.env}" gave "Payments-API-prod". Use format() for a fixed pattern or padding, and join(",", list) for a list. concat() does not join strings. It merges lists; concat("payments", "-", "prod") …

The "depends_on" meta argument in Terraform is used to specify dependencies between resources within a Terraform configuration. This allows Terraform to properly order the creation, modification, and destruction of resources, ensuring that dependent resources are created or modified only after the resources …

TL;DR The message is git's, not Ansible's. ansible.builtin.git runs git clone on the remote host, and git refuses to clone into a directory that already has files. The module reports it as FAILED! => {"cmd": "/usr/bin/git clone --origin origin <repo> <dest>", "msg": …

TL;DR user_data is a string that EC2 passes to cloud-init on the instance's first boot. Start it with #!/bin/bash for a shell script or #cloud-config for cloud-init YAML; without a recognised first line nothing runs. Three ways to write it: inline with <<-EOT ... EOT, file("${path.module}/setup.sh") for …

It is generally not recommended to commit .tfstate files to Git or any other version control system. .tfstate files contain sensitive information about the infrastructure managed by Terraform, including the current state of resources and the configurations used to create them. If these files are committed to version …

To import an existing infrastructure resource into Terraform, you can use the terraform import command. This command allows you to take an existing resource that was created outside of Terraform and bring it under Terraform management. In this blog, we will take two examples - How to import EC2 Instance? How to import …

Why do we need an SSL Certificate for an Application Load Balancer (ALB) in AWS? SSL certificates are used to establish secure connections between clients and servers over the internet. They are particularly important for protecting sensitive information, such as login credentials or financial data, when it is …