terraform-provider-azurerm VS Fail2Ban

So this is doing my head in. Related to https://github.com/hashicorp/terraform-provider-azurerm/issues/6117

https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs

There are different Terraform Providers that enable Terraform to interact with Microsoft Azure. The most common one are Azure Stack, AzureDevops, AzureRM, AzAPI and AzureAD.. In this tutorial, we use the AzureRM Terraform Provider. Let's create a Terraform file for the AzureRM Terraform Provider.

Yeah we imported all the related resources. I could now find an issue, which exactly describes our problem. Unfortunately it is open since 2020: https://github.com/hashicorp/terraform-provider-azurerm/issues/8794

Like other people said, use the azurerm provider docs, they're pretty good. But that's where knowing Azure comes in handy because you'll have to figure out what TF resource to use to accomplish a given goal.

It’s not difficult at all syntactically. But you must understand the provider you are automating. So your azure knowledge is key in this case. Read the Azure provider docs and you will be easily able to put something together. https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs

now some things you need to think about: - cloud init - this will need to be secure so lock it down hard anything not needed an alternative OS to look at if you have the ability's is https://www.alpinelinux.org/ also as these devices are not that powerfull every extra agent / abstaction layer you add impacts performance need to look at low over head security https://www.crowdsec.net/ and https://github.com/fail2ban/fail2ban (if you call fail2ban security) - using certificates to authenticate ssh login

See https://github.com/fail2ban/fail2ban for beginner's guide, basically you set it up to monitor logfiles and it would act accordingly (plenty of built-in config to handle various daemons so you don't have to write yourself).

- Nginx & crowdsec/fail2ban if you are exposing your parts (services) to the public ( https://hub.docker.com/r/baudneo/nginx-proxy-manager, https://www.crowdsec.net, https://www.fail2ban.org )

— In /etc/fail2ban/action.d/cloudflare.conf I copied the file from https://github.com/fail2ban/fail2ban/blob/master/config/action.d/cloudflare.confand added my ‘cftoken’ and ‘cfuser’ on the bottom

https://github.com/fail2ban/fail2ban is a mature, easy to set up way to have some dynamic firewall rules that respond to attacks. There are more sophisticated options, but they are probably not worth the return on time investment for you.

You can create your own regexes for custom services: https://github.com/fail2ban/fail2ban/wiki/Developing-Regex-in-Fail2ban

Others seem to be (or were) experiencing this too: https://github.com/fail2ban/fail2ban/issues/3100