LUKI NOTES

In my earlier post , I shared an example of deploying UpCloud infrastructure using Terraform from scratch. In this post, I want to share how to deploy the infrastructure using available Terraform modules to speed up the set-up process, especially for common use cases like preparing a web server. For instance, our need is to deploy a website with some conditions as follows. The website can be accessed through HTTPS. If the request is HTTP, it will be redirected to HTTPS. There are 2 domains, web1.yourdomain.com and web2.yourdomain.com . But, users should be redirected to "web2" if they are visiting "web1". There are 4 main modules that we need to set up the environment. Private network. It allows the load balancer to connect with the server and pass the traffic. Server. It is used to host the website. Load balancer. It includes backend and frontend configuration. Dynamic certificate. It is requ...

Terraform has become more mature and can help us in many scenarios in provisioning infrastructure. These are a few scenarios that might be quite common for us in day-to-day jobs. Take values from another state as a data source This might be used when we already maintain a base state, and then a few child configurations need to access certain values from the base state. First, define the data source with attributes for accessing another state data "terraform_remote_state" "SOME_NAME" { backend = "local" config = { path = "/path/to/another/terraform.tfstate" } } Then, we can pass the value into any resources. For example, we output a value into another output value. output "public_ip" { value = data.terraform_remote_state.SOME_NAME.outputs.public_ip } Redeploy a resource This might be useful when we find an error in our resource that requires us to redeploy the resource. terraform apply -replace=...