Fix containerized generation

Makefile

@@ -1,5 +1,5 @@
 IMAGE_NAME=golang:1.18
-export GOPROXY?=https://proxy.golang.org
+CONTAINER_ENGINE?=$(shell command -v docker 2>/dev/null || command -v podman 2>/dev/null)
 
 default: \
 	generate \
@@ -10,19 +10,19 @@ reset-docs:
 generate:
 	go run ./generator/app.go
 
-generate-dockerized:
-	docker run --rm -e WHAT -e GOPROXY -v $(shell pwd):/go/src/app:Z $(IMAGE_NAME) make -C /go/src/app generate
+generate-containerized:
+	$(CONTAINER_ENGINE) run --rm -e WHAT -v $(shell pwd):/go/src/app $(IMAGE_NAME) make -C /go/src/app generate
 
 verify:
 	@hack/verify.sh
 
-verify-dockerized:
-	docker run --rm -v $(shell pwd):/go/src/app:Z $(IMAGE_NAME) make -C /go/src/app verify
+verify-containerized:
+	$(CONTAINER_ENGINE) run --rm -v $(shell pwd):/go/src/app $(IMAGE_NAME) make -C /go/src/app verify
 
 test:
 	go test -v ./generator/...
 
-test-dockerized:
-	docker run --rm -v $(shell pwd):/go/src/app:Z $(IMAGE_NAME) make -C /go/src/app test
+test-containerized:
+	$(CONTAINER_ENGINE) run --rm -v $(shell pwd):/go/src/app $(IMAGE_NAME) make -C /go/src/app test
 
-.PHONY: default reset-docs generate generate-dockerized verify test test-dockerized
+.PHONY: default reset-docs generate generate-containerized verify verify-containerized test test-containerized

generator/README.md

@@ -1,7 +1,7 @@
 # SIG Doc builder
 
 This folder contains scripts to automatically generate documentation about the
-different Special Interest Groups (SIGs), Working Groups (WGs) 
+different Special Interest Groups (SIGs), Working Groups (WGs)
 and Committees of Kubernetes. The authoritative
 source for SIG information is the [`sigs.yaml`](/sigs.yaml) file in the project root.
 All updates must be done there.
@@ -49,9 +49,9 @@ To (re)build documentation for all the SIGs in a go environment, run:
 ```bash
 make generate
 ```
-or to run this inside a docker container:
+or to run this inside a container:
 ```bash
-make generate-dockerized
+make generate-containerized
 ```
 
 To build docs for one SIG, run one of these commands:

hack/verify.sh

@@ -32,7 +32,7 @@ fi
 # Excluded check patterns are always skipped.
 EXCLUDED_PATTERNS=(
   "verify-all.sh"                # this script calls the make rule and would cause a loop
-  "verify-*-dockerized.sh"       # Don't run any scripts that intended to be run dockerized
+  "verify-*-containerized.sh"    # Don't run any scripts that intended to be run containerized
   )
 
 EXCLUDED_CHECKS=$(ls ${EXCLUDED_PATTERNS[@]/#/${KUBE_ROOT}\/hack\/} 2>/dev/null || true)