Add resource requirements rule for containers

Author: sajal-n

add-simple-rule.json

@@ -0,0 +1,32 @@
+{
+    "id": "require-resources",
+    "description": "Require CPU/memory requests and limits",
+    "kind": "Pod, Deployment",
+    "match": "spec.containers[*].resources",
+    "pattern": "null",
+    "required": true,
+    "severity": "error",
+    "message": "Containers must define both requests and limits for CPU and memory",
+    "fix": {
+      "action": "insert",
+      "value": {
+        "resources": {
+          "limits": {
+            "cpu": "250m",
+            "memory": "256Mi"
+          },
+          "requests": {
+            "cpu": "100m",
+            "memory": "128Mi"
+          }
+        }
+      },
+      "hint": "Add resource requests and limits to the container (example defaults)"
+    },
+    "explain": {
+      "rationale": "https://github.com/sajal-n/guardon",
+      "refs": [
+        "https://github.com/sajal-n/guardon"
+      ]
+    }
+  }