Require Kubernetes 1.37 or later

Signed-off-by: Ryan Djurovich <git@ryan0x44.com>

Author: ryan0x44

Makefile

@@ -6,6 +6,7 @@ CURRENT_DIR := $(abspath $(dir $(firstword $(MAKEFILE_LIST))))
 CHARTS := $(patsubst %/Chart.yaml,%,$(wildcard charts/*/Chart.yaml))
 JSON_FILES := $(shell find manifests -name '*.json' -type f 2>/dev/null | sort)
 PODPLANE_GIT_CACHE_DIR ?= $(HOME)/.podplane/cache/deps/git
+KUBE_VERSION := 1.37.0
 
 .DEFAULT_GOAL := help
 
@@ -61,7 +62,7 @@ lint: deps ## Run helm lint on every chart
 		extra_args=""; \
 		values_file="tests/values/$$(basename $$chart).yaml"; \
 		if [ -f "$$values_file" ]; then extra_args="-f $$values_file"; fi; \
-		helm lint $$chart $$extra_args || exit 1; \
+		helm lint --kube-version $(KUBE_VERSION) $$chart $$extra_args || exit 1; \
 	done
 
 render: deps ## Run helm template on every chart
@@ -70,7 +71,7 @@ render: deps ## Run helm template on every chart
 		extra_args=""; \
 		values_file="tests/values/$$(basename $$chart).yaml"; \
 		if [ -f "$$values_file" ]; then extra_args="-f $$values_file"; fi; \
-		helm template $$chart $$extra_args >/dev/null || exit 1; \
+		helm template --kube-version $(KUBE_VERSION) $$chart $$extra_args >/dev/null || exit 1; \
 	done
 
 validate: render ## Alias for render
@@ -84,7 +85,7 @@ precommit: check ## Fast local pre-commit check: JSON fmt + helm lint (no networ
 		extra_args=""; \
 		values_file="tests/values/$$(basename $$chart).yaml"; \
 		if [ -f "$$values_file" ]; then extra_args="-f $$values_file"; fi; \
-		helm lint --quiet $$chart $$extra_args >/dev/null || { helm lint $$chart $$extra_args; exit 1; }; \
+		helm lint --quiet --kube-version $(KUBE_VERSION) $$chart $$extra_args >/dev/null || { helm lint --kube-version $(KUBE_VERSION) $$chart $$extra_args; exit 1; }; \
 	done
 	@go vet ./...
 	@echo "precommit ok"

charts/cluster-api/Chart.yaml

@@ -8,3 +8,4 @@ description: Cluster API core controller for Podplane
 type: application
 version: "1.0.0"
 appVersion: "v1.12.10"
+kubeVersion: ">=1.37.0-0"

charts/podplane-operator/Chart.yaml

@@ -8,3 +8,4 @@ description: Podplane operator with SecretProviderBinding controller and aggrega
 type: application
 version: "1.0.0"
 appVersion: "0.4.3"
+kubeVersion: ">=1.37.0-0"

scripts/manifests/main.go

@@ -326,7 +326,7 @@ func sharedMetadata(components []string) (metadata, error) {
 // chartImages renders a chart and extracts normalized images from pod specs.
 func chartImages(chartPath string) ([]string, error) {
 	chartName := filepath.Base(chartPath)
-	args := []string{"template", chartPath}
+	args := []string{"template", chartPath, "--kube-version", "1.37.0"}
 	valuesPath := filepath.Join("tests", "values", chartName+".yaml")
 	if _, err := os.Stat(valuesPath); err == nil {
 		args = append(args, "-f", valuesPath)