Fix rendering big (>4MB) packages with function-runner

.vscode/launch.json

@@ -18,8 +18,8 @@
                 "--repo-sync-frequency=60s"
             ],
             "cwd": "${workspaceFolder}",
-            "env": { 
-                "CERT_STORAGE_DIR": "${workspaceFolder}/.build/pki/tmp", 
+            "env": {
+                "CERT_STORAGE_DIR": "${workspaceFolder}/.build/pki/tmp",
                 "WEBHOOK_HOST": "localhost",
                 "GOOGLE_API_GO_EXPERIMENTAL_DISABLE_NEW_AUTH_LIB": "true"
             }
@@ -31,9 +31,9 @@
             "mode": "auto",
             "program": "${workspaceFolder}/controllers",
             "cwd": "${workspaceFolder}",
-            "env": { 
-                "ENABLE_PACKAGEVARIANTS": "true", 
-                "ENABLE_PACKAGEVARIANTSETS": "true" 
+            "env": {
+                "ENABLE_PACKAGEVARIANTS": "true",
+                "ENABLE_PACKAGEVARIANTSETS": "true"
             }
         },
         {
@@ -45,9 +45,11 @@
             "args": [
                 "-test.v",
                 "-test.run",
-                "TestE2E/PorchSuite/TestGitRepositoryWithReleaseTagsAndDirectory"
+                "TestE2E/PorchSuite/TestPodEvaluatorWithLargeObjects"
             ],
-            "env": { "E2E": "1"}
+            "env": {
+                "E2E": "1"
+            }
         },
         {
             "name": "Launch Func Client",

Makefile

@@ -362,5 +362,5 @@ test-e2e: ## Run end-to-end tests
 	E2E=1 go test -v -failfast ./test/e2e/cli
 
 .PHONY: test-e2e-clean
-test-e2e-clean: porchctl ## Run end-to-end tests aginst a newly deployed porch in a newly created kind cluster
+test-e2e-clean: porchctl ## Run end-to-end tests against a newly deployed porch in a newly created kind cluster
 	./scripts/clean-e2e-test.sh

deployments/porch/2-function-runner.yaml

@@ -44,6 +44,7 @@ spec:
             - --config=/config.yaml
             - --functions=/functions
             - --pod-namespace=porch-fn-system
+            - --max-request-body-size=6291456 # Keep this in sync with porch-server's corresponding argument
           env:
             - name: WRAPPER_SERVER_IMAGE
               value: docker.io/nephio/porch-wrapper-server:latest

deployments/porch/3-porch-server.yaml

@@ -61,22 +61,23 @@ spec:
             - name: api-server-certs
               mountPath: /tmp/certs
           env:
-          # Uncomment to enable trace-reporting to jaeger
-          #- name: OTEL
-          #  value: otel://jaeger-oltp:4317
-          - name: OTEL_SERVICE_NAME
-            value: porch-server
-          - name: CERT_STORAGE_DIR
-            value: "/etc/webhook/certs"
-          - name: GOOGLE_API_GO_EXPERIMENTAL_DISABLE_NEW_AUTH_LIB
-            value: "true"
+            # Uncomment to enable trace-reporting to jaeger
+            #- name: OTEL
+            #  value: otel://jaeger-oltp:4317
+            - name: OTEL_SERVICE_NAME
+              value: porch-server
+            - name: CERT_STORAGE_DIR
+              value: "/etc/webhook/certs"
+            - name: GOOGLE_API_GO_EXPERIMENTAL_DISABLE_NEW_AUTH_LIB
+              value: "true"
           args:
             - --function-runner=function-runner:9445
             - --cache-directory=/cache
             - --cert-dir=/tmp/certs
             - --secure-port=4443
             - --repo-sync-frequency=10m
             - --disable-validating-admissions-policy=true
+            - --max-request-body-size=6291456 # Keep this in sync with function-runner's corresponding argument
 
 ---
 apiVersion: v1

func/internal/executableevaluator.go

@@ -31,6 +31,11 @@ import (
 	"k8s.io/klog/v2"
 )
 
+type ExecutableEvaluatorOptions struct {
+	ConfigFileName   string // Path to the config file
+	FunctionCacheDir string // Path to cached functions
+}
+
 type executableEvaluator struct {
 	// Fast-path function cache
 	cache map[string]string
@@ -47,25 +52,25 @@ type function struct {
 
 var _ Evaluator = &executableEvaluator{}
 
-func NewExecutableEvaluator(functions string, config string) (Evaluator, error) {
+func NewExecutableEvaluator(o ExecutableEvaluatorOptions) (Evaluator, error) {
 	cache := map[string]string{}
 
-	if config != "" {
-		bytes, err := os.ReadFile(config)
+	if o.ConfigFileName != "" {
+		bytes, err := os.ReadFile(o.ConfigFileName)
 		if err != nil {
-			return nil, fmt.Errorf("failed to read configuration file %q: %w", config, err)
+			return nil, fmt.Errorf("failed to read configuration file %q: %w", o.ConfigFileName, err)
 		}
 		var cfg configuration
 		if err := yaml.Unmarshal(bytes, &cfg); err != nil {
-			return nil, fmt.Errorf("failed to parse configuration file %q: %w", config, err)
+			return nil, fmt.Errorf("failed to parse configuration file %q: %w", o.ConfigFileName, err)
 		}
 
 		for _, fn := range cfg.Functions {
 			for _, img := range fn.Images {
 				if _, exists := cache[img]; exists {
 					klog.Warningf("Ignoring duplicate image %q (%s)", img, fn.Function)
 				} else {
-					abs, err := filepath.Abs(filepath.Join(functions, fn.Function))
+					abs, err := filepath.Abs(filepath.Join(o.FunctionCacheDir, fn.Function))
 					if err != nil {
 						return nil, fmt.Errorf("failed to determine path to the cached function %q: %w", img, err)
 					}