How to declare a azurerm_container_group resource that uses ports with different protocols?

Question

I am trying to setup a stasd-exporter, which requires 2 types ports: a UDP and a TCP.

In the statsd-exporter's readme, the example uses 2 different types of ports:

docker pull prom/statsd-exporter

docker run -d -p 9102:9102 -p 9125:9125 -p 9125:9125/udp \
        -v $PWD/statsd_mapping.yml:/tmp/statsd_mapping.yml \
        prom/statsd-exporter --statsd.mapping-config=/tmp/statsd_mapping.yml

The tutorial I am following uses 8125 for UDP and 9102 for TCP.

Figured out that I can use a list of ports, but I could not find how to use set each ports protocol inside ports block

For now, what I have in the azurerm_container_group is:

resource "azurerm_container_group" "statsd_exporter" {
  name                = "${azurerm_resource_group.monitoring.name}-common"
  location            = azurerm_resource_group.monitoring.location
  resource_group_name = azurerm_resource_group.monitoring.name

  ip_address_type = "public"
  os_type         = "Linux"

  container {
    name                  = "statsd-exporter"
    image                 = "prom/statsd-exporter"
    cpu                   = "0.5"
    memory                = "1"
    environment_variables = ""

    commands = [
      "/bin/bash", "-c", "--statsd.listen-udp=:8125", "--web.listen-address=:9102"
    ]

    ports {
        port     = [8125, 9102] # --> 8125 should be UDP and 9102 should be TCP
        protocol = ## < < ??? > > ##
    }

  }

How to associate each port of a azurerm_container_group's container to a different protocol?

Answer 1

You can define the ports as below:

resource "azurerm_container_group" "statsd_exporter" {
  name                = "statsd"
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name
  ip_address_type = "public"
  os_type         = "Linux"

  container {
    name                  = "statsd-exporter"
    image                 = "prom/statsd-exporter"
    cpu                   = "0.5"
    memory                = "1"
    commands = [
      "/bin/bash", "-c", "--statsd.listen-udp=:8125", "--web.listen-address=:9102"
    ]
    ports {
      port     = 9102
      protocol = "TCP"
    }
    ports{
    port =  8125
    protocol = "UDP"
    }
  }
}

Output:

Doing a terraform plan:

Terraform apply:

In Azure Portal:

Reference:

azurerm_container_group | Resources | hashicorp/azurerm | Terraform Registry