feat: Add support for defining resource limits in a component's properties

crates/wadm-types/src/bindings.rs

@@ -89,6 +89,7 @@ impl From<ComponentProperties> for wadm::types::ComponentProperties {
         wadm::types::ComponentProperties {
             image: properties.image,
             id: properties.id,
+            resources: properties.resources,
             config: properties.config.into_iter().map(|c| c.into()).collect(),
             secrets: properties.secrets.into_iter().map(|c| c.into()).collect(),
         }
@@ -392,6 +393,7 @@ impl From<wadm::types::ComponentProperties> for ComponentProperties {
         ComponentProperties {
             image: properties.image,
             id: properties.id,
+            resources: properties.resources,
             config: properties.config.into_iter().map(|c| c.into()).collect(),
             secrets: properties.secrets.into_iter().map(|c| c.into()).collect(),
         }

crates/wadm-types/src/lib.rs

@@ -224,6 +224,9 @@ pub struct ComponentProperties {
     /// these values at runtime using `wasi:runtime/config.`
     #[serde(default, skip_serializing_if = "Vec::is_empty")]
     pub config: Vec<ConfigProperty>,
+    /// Configuration for setting the amount of resources available for the component
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub resources: Option<ResourceProperty>,
     /// Named secret references to pass to the component. The component will be able to retrieve
     /// these values at runtime using `wasmcloud:secrets/store`.
     #[serde(default, skip_serializing_if = "Vec::is_empty")]
@@ -238,6 +241,13 @@ pub struct ConfigDefinition {
     pub secrets: Vec<SecretProperty>,
 }
 
+#[derive(Debug, Serialize, Deserialize, Clone, PartialEq, Eq, Hash, JsonSchema)]
+pub struct ResourceProperty {
+    /// The maximum amount of memory, in megabytes, that the component is allowed to consume.
+    #[validate(range(min = 1))]
+    pub memory: usize,
+}
+
 #[derive(Debug, Serialize, Deserialize, Clone, PartialEq, Eq, Hash, JsonSchema)]
 pub struct SecretProperty {
     /// The name of the secret. This is used by a reference by the component or capability to
@@ -759,6 +769,7 @@ mod test {
                     image: "wasmcloud.azurecr.io/fake:1".to_string(),
                     id: None,
                     config: vec![],
+                    resources: None,
                     secrets: vec![],
                 },
             },

oam.schema.json

@@ -126,6 +126,17 @@
           "description": "The image reference to use",
           "type": "string"
         },
+        "resources": {
+          "description": "Configuration for setting the amount of resources available for the component",
+          "anyOf": [
+            {
+              "$ref": "#/definitions/ResourceProperty"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
         "secrets": {
           "description": "Named secret references to pass to the component. The component will be able to retrieve these values at runtime using `wasmcloud:secrets/store`.",
           "type": "array",
@@ -280,6 +291,20 @@
         }
       }
     },
+    "ResourceProperty": {
+      "type": "object",
+      "required": [
+        "memory"
+      ],
+      "properties": {
+        "memory": {
+          "description": "The maximum amount of memory, in megabytes, that the component is allowed to consume.",
+          "type": "integer",
+          "format": "uint",
+          "minimum": 1.0
+        }
+      }
+    },
     "SecretProperty": {
       "type": "object",
       "required": ["name", "properties"],

wit/wadm/types.wit

@@ -119,6 +119,7 @@ interface types {
     record component-properties {
         image: string,
         id: option<string>,
+        resources: option<resource-property>
         config: list<config-property>,
         secrets: list<secret-property>,
     }
@@ -173,6 +174,11 @@ interface types {
         properties: option<list<tuple<string, string>>>,
     }
 
+    // Resource properties
+    record resource-property {
+        memory: u32,
+    }
+
     // Secret properties
     record secret-property {
         name: string,