AWS Lambda Update: Adds support for increased ephemeral storage (/tmp) up to 10GB for Lambda functions. Customers can now provision up to 10 GB of ephemeral storage per function instance, a 20x increase over the previous limit of 512 MB.

Author: AWS

.changes/next-release/feature-AWSLambda-a4e6846.json

@@ -0,0 +1,6 @@
+{
+    "type": "feature",
+    "category": "AWS Lambda",
+    "contributor": "",
+    "description": "Adds support for increased ephemeral storage (/tmp) up to 10GB for Lambda functions. Customers can now provision up to 10 GB of ephemeral storage per function instance, a 20x increase over the previous limit of 512 MB."
+}

services/lambda/src/main/resources/codegen-resources/service-2.json

@@ -1669,6 +1669,10 @@
         "Architectures":{
           "shape":"ArchitecturesList",
           "documentation":"<p>The instruction set architecture that the function supports. Enter a string array with one of the valid values (arm64 or x86_64). The default value is <code>x86_64</code>.</p>"
+        },
+        "EphemeralStorage":{
+          "shape":"EphemeralStorage",
+          "documentation":"<p>The size of the function’s /tmp directory in MB. The default value is 512, but can be any whole number between 512 and 10240 MB.</p>"
         }
       }
     },
@@ -2018,6 +2022,22 @@
       "value":{"shape":"EnvironmentVariableValue"},
       "sensitive":true
     },
+    "EphemeralStorage":{
+      "type":"structure",
+      "required":["Size"],
+      "members":{
+        "Size":{
+          "shape":"EphemeralStorageSize",
+          "documentation":"<p>The size of the function’s /tmp directory.</p>"
+        }
+      },
+      "documentation":"<p>The size of the function’s /tmp directory in MB. The default value is 512, but can be any whole number between 512 and 10240 MB.</p>"
+    },
+    "EphemeralStorageSize":{
+      "type":"integer",
+      "max":10240,
+      "min":512
+    },
     "EventSourceMappingConfiguration":{
       "type":"structure",
       "members":{
@@ -2372,6 +2392,10 @@
         "Architectures":{
           "shape":"ArchitecturesList",
           "documentation":"<p>The instruction set architecture that the function supports. Architecture is a string array with one of the valid values. The default architecture value is <code>x86_64</code>.</p>"
+        },
+        "EphemeralStorage":{
+          "shape":"EphemeralStorage",
+          "documentation":"<p>The size of the function’s /tmp directory in MB. The default value is 512, but can be any whole number between 512 and 10240 MB.</p>"
         }
       },
       "documentation":"<p>Details about a function's configuration.</p>"
@@ -4923,6 +4947,10 @@
         "ImageConfig":{
           "shape":"ImageConfig",
           "documentation":"<p> <a href=\"https://docs.aws.amazon.com/lambda/latest/dg/images-parms.html\">Container image configuration values</a> that override the values in the container image Docker file.</p>"
+        },
+        "EphemeralStorage":{
+          "shape":"EphemeralStorage",
+          "documentation":"<p>The size of the function’s /tmp directory in MB. The default value is 512, but can be any whole number between 512 and 10240 MB.</p>"
         }
       }
     },