Add mig support in specs

aws/infrastructure.tf

@@ -207,6 +207,7 @@ locals {
         cpus = data.aws_ec2_instance_type.instance_type[values.prefix].default_vcpus
         ram  = data.aws_ec2_instance_type.instance_type[values.prefix].memory_size
         gpus = try(one(data.aws_ec2_instance_type.instance_type[values.prefix].gpus).count, 0)
+        mig  = lookup(values, "mig", null)
       }
     }
   }

azure/infrastructure.tf

@@ -170,6 +170,7 @@ locals {
         cpus = local.vmsizes[values.type].vcpus
         ram  = local.vmsizes[values.type].ram
         gpus = local.vmsizes[values.type].gpus
+        mig  = lookup(values, "mig", null)
       }
     }
   }

docs/README.md

@@ -546,19 +546,23 @@ Optional attributes can be defined:
 2. `image`: specification of the image to use for this instance type. (default: global [`image`](#46-image) value).
 Refer to section [10.12 - Create a compute node image](#1012-create-a-compute-node-image) to learn how this attribute can
 be leveraged to accelerate compute node configuration.
-3. `disk_size`: size in gibibytes (GiB) of the instance's root disk containing
+3. `disk_type`: type of the instance's root disk (default: see the next table).
+    | Provider | `disk_type` | `disk_size` (GiB) |
+    | -------- | :---------- | ----------------: |
+    | Azure    |`Premium_LRS`| 30                |
+    | AWS      | `gp2`       | 10                |
+    | GCP      | `pd-ssd`    | 20                |
+    | OpenStack| `null`      | 10                |
+    | OVH      | `null`      | 10                |
+4. `disk_size`: size in gibibytes (GiB) of the instance's root disk containing
 the operating system and service software
-(default: see the next table).
-4. `disk_type`: type of the instance's root disk (default: see the next table).
-
-Default root disk's attribute value per provider:
-| Provider | `disk_type` | `disk_size` (GiB) |
-| -------- | :---------- | ----------------: |
-| Azure    |`Premium_LRS`| 30                |
-| AWS      | `gp2`       | 10                |
-| GCP      | `pd-ssd`    | 20                |
-| OpenStack| `null`      | 10                |
-| OVH      | `null`      | 10                |
+(default: see the previous table).
+5. `mig`: map of [NVIDIA Multi-Instance GPU (MIG)](https://docs.nvidia.com/datacenter/tesla/mig-user-guide/index.html) short profile names and count used to partition the instances' GPU, example for an A100:
+    ```
+    mig = { "1g.5gb" = 2, "2g.10gb" = 1, "3g.20gb" = 1 }
+    ```
+    This is only functional with [MIG supported GPUs](https://docs.nvidia.com/datacenter/tesla/mig-user-guide/index.html#supported-gpus),
+    and with x86-64 processors (see [NVIDIA/mig-parted issue #30](https://github.com/NVIDIA/mig-parted/issues/30)).
 
 For some cloud providers, it possible to define additional attributes.
 The following sections present the available attributes per provider.
@@ -864,8 +868,8 @@ if previously instantiated.
 
 **default_value** = `false`
 
-Determines whether the base image packages will be upgraded during the first boot or not. By default,
-all packages are upgraded. If `skip_upgrade` set to `true`, no package will be upgraded on first boot.
+If true, the base image packages will not be upgraded during the first boot. By default,
+all packages are upgraded.
 
 **Post build modification effect**: No effect on currently built instances. Ones created
 after the modification will take into consideration the new value of the parameter to determine

gcp/infrastructure.tf

@@ -180,6 +180,7 @@ locals {
         cpus = data.external.machine_type[values["prefix"]].result["vcpus"]
         ram  = data.external.machine_type[values["prefix"]].result["ram"]
         gpus = try(data.external.machine_type[values["prefix"]].result["gpus"], lookup(values, "gpu_count", 0))
+        mig  = lookup(values, "mig", null)
       }
     }
   }

openstack/infrastructure.tf

@@ -137,6 +137,7 @@ locals {
           parseint(lookup(data.openstack_compute_flavor_v2.flavors[values.prefix].extra_specs, "resources:VGPU", "0"), 10),
           parseint(split(":", lookup(data.openstack_compute_flavor_v2.flavors[values.prefix].extra_specs, "pci_passthrough:alias", "gpu:0"))[1], 10)
         ])
+        mig  = lookup(values, "mig", null)
       }
     }
   }