fix: public-cloud-terraform: remove provider/alias informations from examples

alias and provider keyword are an expert way of doing Terraform, and is
complexifying the quick start example for no added value.

Customers that add resource must take this complexity into account and
can lead to complicated errors.
Removing the complexity is better, as advanced users that want to deal
with multiple configuration of the same provider know how to do that.

Signed-off-by: Romain Beuque <[email protected]>

Author: rbeuque74

pages/public_cloud/public_cloud_cross_functional/how_to_use_terraform/guide.de-de.md

@@ -78,7 +78,7 @@ required_version    = ">= 0.14.0" # Takes into account Terraform versions from 0
       source  = "terraform-provider-openstack/openstack"
       version = ">= 3.0.0"
     }
- 
+
     ovh = {
       source  = "ovh/ovh"
       version = ">= 2.1.0"
@@ -90,11 +90,9 @@ required_version    = ">= 0.14.0" # Takes into account Terraform versions from 0
 provider "openstack" {
   auth_url    = "https://auth.cloud.ovh.net/v3/" # Authentication URL
   domain_name = "default" # Domain name - Always at 'default' for OVHcloud
-  alias       = "ovh" # An alias
 }
 
 provider "ovh" {
-  alias              = "ovh"
   endpoint           = "ovh-eu"
   application_key    = "<your_access_key>"
   application_secret = "<your_application_secret>"
@@ -145,15 +143,13 @@ For example purposes, we will create a simple instance on **Debian 10** with the
 ```python
 # Creating an SSH key pair resource
 resource "openstack_compute_keypair_v2" "test_keypair" {
-  provider   = openstack.ovh # Provider name declared in provider.tf
   name       = "test_keypair" # Name of the SSH key to use for creation
   public_key = file("~/.ssh/id_rsa.pub") # Path to your previously generated SSH key
 }
- 
+
 # Creating the instance
 resource "openstack_compute_instance_v2" "test_terraform_instance" {
   name        = "terraform_instance" # Instance name
-  provider    = openstack.ovh  # Provider name
   image_name  = "Debian 10" # Image name
   flavor_name = "d2-2" # Instance type name
   # Name of openstack_compute_keypair_v2 resource named keypair_test
@@ -162,7 +158,7 @@ resource "openstack_compute_instance_v2" "test_terraform_instance" {
     name      = "Ext-Net" # Adds the network component to reach your instance
   }
   lifecycle {
-    # OVHcloud regularly updates the base image of a given OS so that customer has less packages to update after spawning a new instance 
+    # OVHcloud regularly updates the base image of a given OS so that customer has less packages to update after spawning a new instance
     # To avoid terraform to have some issue with that, the following ignore_changes is required.
     ignore_changes = [
       image_name
@@ -281,22 +277,20 @@ To do this, we will create a file named `multiple_instance.tf`. In it, we first
    type = list
    default = ["GRA11", "SBG5", "BHS5"]
  }
-  
+
 # Creating an SSH key pair
  resource "openstack_compute_keypair_v2" "test_keypair_all" {
    count = length(var.region)
-   provider = openstack.ovh # Specify provider name
    name = "test_keypair_all" # Name of the SSH key
    public_key = file("~/.ssh/id_rsa.pub") # Your SSH key path
    region = element(var.region, count.index)
  }
-  
+
  # Create a resource that is an OpenStack instance in each region
  resource "openstack_compute_instance_v2" "instances_on_all_regions" {
    # Number of times the resource will be created
    # defined by the length of the list named region
    count = length(var.region)
-   provider = openstack.ovh # Provider name
    name = "terraform_instances" # Instance name
    flavor_name = "d2-2" # Instance flavor
    image_name = "Debian 10" # Image name
@@ -334,9 +328,8 @@ In this example we will attach a new storage volume to our first instance. Open
 resource "openstack_blockstorage_volume_v2" "volume_to_add" {
   name = "simple_volume" # Volume name
   size = 10 # Volume size in GB
-  provider = openstack.ovh # Provider name
 }
- 
+
 # Attach the volume created previously to the instance
 resource "openstack_compute_volume_attach_v2" "attached" {
   # ID of openstack_compute_instance_v2 resource named test_terraform_instance
@@ -381,18 +374,17 @@ variable "region" {
  resource "ovh_vrack_cloudproject" "vcp" {
   service_name = var.service_name
   project_id   = var.project_id
-} 
+}
 
  # Creating a private network
  resource "ovh_cloud_project_network_private" "network" {
     service_name = var.service_name
     name         = "private_network" # Network name
     regions      = [var.region]
-    provider     = ovh.ovh # Provider name
     vlan_id      = 168 # VLAN ID for vRack
     depends_on   = [ovh_vrack_cloudproject.vcp] # Depends on the vRack's association with the cloud project
  }
-  
+
  # Creating a subnet using the previously created private network
  resource "ovh_cloud_project_network_private_subnet" "subnet" {
     service_name = var.service_name
@@ -403,13 +395,11 @@ variable "region" {
     network      = "192.168.168.0/24" # Subnet IP address location
     dhcp         = true # Enables DHCP
     region       = var.region
-    provider     = ovh.ovh # Provider name
     no_gateway   = true # No default gateway
  }
-  
+
  # Creating an instance with 2 network interfaces
  resource "openstack_compute_instance_v2" "proxy_instance" {
-   provider     = openstack.ovh # Provider name
    name         = "proxy_instance" # Instance name
    image_name   = "Debian 10" # Image name
    flavor_name  = "d2-2" # Flavor name
@@ -465,12 +455,11 @@ variable myregion {
 resource "ovh_cloud_project_network_private" "private_network" {
   service_name  = var.service_name
   name          = "backend" # Network name
-  regions       = [var.myregion] 
-  provider      = ovh.ovh # Provider name
+  regions       = [var.myregion]
   vlan_id       = 42 # vRack vlan ID
   depends_on    = [ovh_vrack_cloudproject.vcp] # Depends on vRack being associated with the cloud project
 }
- 
+
 # Creating a private subnet
 resource "ovh_cloud_project_network_private_subnet" "private_subnet" {
   # ID for the ovh_cloud_network_private resource named private_network
@@ -481,27 +470,24 @@ resource "ovh_cloud_project_network_private_subnet" "private_subnet" {
   start         = "192.168.42.2" # First IP of the subnet
   end           = "192.168.42.200" # Last IP of the subnet
   dhcp          = false # Disabling DHCP
-  provider      = ovh.ovh # Provider name
   no_gateway    = true # No default gateway
 }
- 
+
 # Search for the latest Archlinux image
 data "openstack_images_image_v2" "archlinux" {
   name          = "Archlinux" # Image name
   most_recent   = true # Limits search to the most recent
-  provider      = openstack.ovh # Provider name
 }
- 
+
 # List of possible private IP addresses for front-ends
 variable "front_private_ip" {
   type          = list(any)
   default       = ["192.168.42.2", "192.168.42.3"]
 }
- 
+
 # Create 2 instances with 2 network interfaces
 resource "openstack_compute_instance_v2" "front" {
   count           = length(var.front_private_ip) # Number of instances to create
-  provider        = openstack.ovh # Provider name
   name            = "front" # Instance name
   key_pair        = openstack_compute_keypair_v2.test_keypair.name
   flavor_name     = "d2-2" # Instance type name
@@ -518,17 +504,15 @@ resource "openstack_compute_instance_v2" "front" {
   }
   depends_on = [ovh_cloud_project_network_private_subnet.private_subnet] # Depends on private network
 }
- 
+
 # Create an attachable storage device for the backup (volume)
 resource "openstack_blockstorage_volume_v2" "backup" {
   name     = "backup_disk" # Name of storage device
   size     = 10 # Size
-  provider = openstack.ovh # Provider name
 }
- 
+
 # Create an instance with a network interface and storage device
 resource "openstack_compute_instance_v2" "back" {
-  provider        = openstack.ovh # Provider name
   name            = "back" # Instance name
   key_pair        = openstack_compute_keypair_v2.test_keypair.name
   flavor_name     = "d2-2" # Instance type name

pages/public_cloud/public_cloud_cross_functional/how_to_use_terraform/guide.en-asia.md

@@ -78,7 +78,7 @@ required_version    = ">= 0.14.0" # Takes into account Terraform versions from 0
       source  = "terraform-provider-openstack/openstack"
       version = ">= 3.0.0"
     }
- 
+
     ovh = {
       source  = "ovh/ovh"
       version = ">= 2.1.0"
@@ -90,11 +90,9 @@ required_version    = ">= 0.14.0" # Takes into account Terraform versions from 0
 provider "openstack" {
   auth_url    = "https://auth.cloud.ovh.net/v3/" # Authentication URL
   domain_name = "default" # Domain name - Always at 'default' for OVHcloud
-  alias       = "ovh" # An alias
 }
 
 provider "ovh" {
-  alias              = "ovh"
   endpoint           = "ovh-eu"
   application_key    = "<your_access_key>"
   application_secret = "<your_application_secret>"
@@ -145,15 +143,13 @@ For example purposes, we will create a simple instance on **Debian 10** with the
 ```python
 # Creating an SSH key pair resource
 resource "openstack_compute_keypair_v2" "test_keypair" {
-  provider   = openstack.ovh # Provider name declared in provider.tf
   name       = "test_keypair" # Name of the SSH key to use for creation
   public_key = file("~/.ssh/id_rsa.pub") # Path to your previously generated SSH key
 }
- 
+
 # Creating the instance
 resource "openstack_compute_instance_v2" "test_terraform_instance" {
   name        = "terraform_instance" # Instance name
-  provider    = openstack.ovh  # Provider name
   image_name  = "Debian 10" # Image name
   flavor_name = "d2-2" # Instance type name
   # Name of openstack_compute_keypair_v2 resource named keypair_test
@@ -162,7 +158,7 @@ resource "openstack_compute_instance_v2" "test_terraform_instance" {
     name      = "Ext-Net" # Adds the network component to reach your instance
   }
   lifecycle {
-    # OVHcloud regularly updates the base image of a given OS so that customer has less packages to update after spawning a new instance 
+    # OVHcloud regularly updates the base image of a given OS so that customer has less packages to update after spawning a new instance
     # To avoid terraform to have some issue with that, the following ignore_changes is required.
     ignore_changes = [
       image_name
@@ -281,22 +277,20 @@ To do this, we will create a file named `multiple_instance.tf`. In it, we first
    type = list
    default = ["GRA11", "SBG5", "BHS5"]
  }
-  
+
 # Creating an SSH key pair
  resource "openstack_compute_keypair_v2" "test_keypair_all" {
    count = length(var.region)
-   provider = openstack.ovh # Specify provider name
    name = "test_keypair_all" # Name of the SSH key
    public_key = file("~/.ssh/id_rsa.pub") # Your SSH key path
    region = element(var.region, count.index)
  }
-  
+
  # Create a resource that is an OpenStack instance in each region
  resource "openstack_compute_instance_v2" "instances_on_all_regions" {
    # Number of times the resource will be created
    # defined by the length of the list named region
    count = length(var.region)
-   provider = openstack.ovh # Provider name
    name = "terraform_instances" # Instance name
    flavor_name = "d2-2" # Instance flavor
    image_name = "Debian 10" # Image name
@@ -334,9 +328,8 @@ In this example we will attach a new storage volume to our first instance. Open
 resource "openstack_blockstorage_volume_v2" "volume_to_add" {
   name = "simple_volume" # Volume name
   size = 10 # Volume size in GB
-  provider = openstack.ovh # Provider name
 }
- 
+
 # Attach the volume created previously to the instance
 resource "openstack_compute_volume_attach_v2" "attached" {
   # ID of openstack_compute_instance_v2 resource named test_terraform_instance
@@ -381,18 +374,17 @@ variable "region" {
  resource "ovh_vrack_cloudproject" "vcp" {
   service_name = var.service_name
   project_id   = var.project_id
-} 
+}
 
  # Creating a private network
  resource "ovh_cloud_project_network_private" "network" {
     service_name = var.service_name
     name         = "private_network" # Network name
     regions      = [var.region]
-    provider     = ovh.ovh # Provider name
     vlan_id      = 168 # VLAN ID for vRack
     depends_on   = [ovh_vrack_cloudproject.vcp] # Depends on the vRack's association with the cloud project
  }
-  
+
  # Creating a subnet using the previously created private network
  resource "ovh_cloud_project_network_private_subnet" "subnet" {
     service_name = var.service_name
@@ -403,13 +395,11 @@ variable "region" {
     network      = "192.168.168.0/24" # Subnet IP address location
     dhcp         = true # Enables DHCP
     region       = var.region
-    provider     = ovh.ovh # Provider name
     no_gateway   = true # No default gateway
  }
-  
+
  # Creating an instance with 2 network interfaces
  resource "openstack_compute_instance_v2" "proxy_instance" {
-   provider     = openstack.ovh # Provider name
    name         = "proxy_instance" # Instance name
    image_name   = "Debian 10" # Image name
    flavor_name  = "d2-2" # Flavor name
@@ -465,12 +455,11 @@ variable myregion {
 resource "ovh_cloud_project_network_private" "private_network" {
   service_name  = var.service_name
   name          = "backend" # Network name
-  regions       = [var.myregion] 
-  provider      = ovh.ovh # Provider name
+  regions       = [var.myregion]
   vlan_id       = 42 # vRack vlan ID
   depends_on    = [ovh_vrack_cloudproject.vcp] # Depends on vRack being associated with the cloud project
 }
- 
+
 # Creating a private subnet
 resource "ovh_cloud_project_network_private_subnet" "private_subnet" {
   # ID for the ovh_cloud_network_private resource named private_network
@@ -481,27 +470,24 @@ resource "ovh_cloud_project_network_private_subnet" "private_subnet" {
   start         = "192.168.42.2" # First IP of the subnet
   end           = "192.168.42.200" # Last IP of the subnet
   dhcp          = false # Disabling DHCP
-  provider      = ovh.ovh # Provider name
   no_gateway    = true # No default gateway
 }
- 
+
 # Search for the latest Archlinux image
 data "openstack_images_image_v2" "archlinux" {
   name          = "Archlinux" # Image name
   most_recent   = true # Limits search to the most recent
-  provider      = openstack.ovh # Provider name
 }
- 
+
 # List of possible private IP addresses for front-ends
 variable "front_private_ip" {
   type          = list(any)
   default       = ["192.168.42.2", "192.168.42.3"]
 }
- 
+
 # Create 2 instances with 2 network interfaces
 resource "openstack_compute_instance_v2" "front" {
   count           = length(var.front_private_ip) # Number of instances to create
-  provider        = openstack.ovh # Provider name
   name            = "front" # Instance name
   key_pair        = openstack_compute_keypair_v2.test_keypair.name
   flavor_name     = "d2-2" # Instance type name
@@ -518,17 +504,15 @@ resource "openstack_compute_instance_v2" "front" {
   }
   depends_on = [ovh_cloud_project_network_private_subnet.private_subnet] # Depends on private network
 }
- 
+
 # Create an attachable storage device for the backup (volume)
 resource "openstack_blockstorage_volume_v2" "backup" {
   name     = "backup_disk" # Name of storage device
   size     = 10 # Size
-  provider = openstack.ovh # Provider name
 }
- 
+
 # Create an instance with a network interface and storage device
 resource "openstack_compute_instance_v2" "back" {
-  provider        = openstack.ovh # Provider name
   name            = "back" # Instance name
   key_pair        = openstack_compute_keypair_v2.test_keypair.name
   flavor_name     = "d2-2" # Instance type name