Add ARCH in Makefile, make Dockerfile more compatible with podman

Makefile

@@ -10,9 +10,10 @@ PREFIX = nginx/nginx-ingress## The name of the image. For example, nginx/nginx-i
 TAG = $(VERSION:v%=%)## The tag of the image. For example, 2.0.0
 TARGET ?= local## The target of the build. Possible values: local, container and download
 override DOCKER_BUILD_OPTIONS += --build-arg IC_VERSION=$(VERSION) --build-arg GIT_COMMIT=$(GIT_COMMIT)## The options for the docker build command. For example, --pull.
+ARCH ?= amd64## The architecture of the image or binary. For example: amd64, arm64, ppc64le, s390x. Not all architectures are supported for all targets.
 
 # final docker build command
-DOCKER_CMD = docker build $(strip $(DOCKER_BUILD_OPTIONS)) --target $(strip $(TARGET)) -f build/Dockerfile -t $(strip $(PREFIX)):$(strip $(TAG)) .
+DOCKER_CMD = docker build --platform linux/$(ARCH) $(strip $(DOCKER_BUILD_OPTIONS)) --target $(strip $(TARGET)) -f build/Dockerfile -t $(strip $(PREFIX)):$(strip $(TAG)) .
 
 export DOCKER_BUILDKIT = 1
 
@@ -71,7 +72,7 @@ build: ## Build Ingress Controller binary
 	@docker -v || (code=$$?; printf "\033[0;31mError\033[0m: there was a problem with Docker\n"; exit $$code)
 ifeq (${TARGET},local)
 	@go version || (code=$$?; printf "\033[0;31mError\033[0m: unable to build locally, try using the parameter TARGET=container or TARGET=download\n"; exit $$code)
-	CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags "-s -w -X main.version=${VERSION}" -o nginx-ingress github.com/nginxinc/kubernetes-ingress/cmd/nginx-ingress
+	CGO_ENABLED=0 GOOS=linux GOARCH=$(ARCH) go build -trimpath -ldflags "-s -w -X main.version=${VERSION}" -o nginx-ingress github.com/nginxinc/kubernetes-ingress/cmd/nginx-ingress
 else ifeq (${TARGET},download)
 	@$(MAKE) download-binary-docker
 endif
@@ -89,7 +90,7 @@ endif
 .PHONY: build-goreleaser
 build-goreleaser: ## Build Ingress Controller binary using GoReleaser
 	@goreleaser -v || (code=$$?; printf "\033[0;31mError\033[0m: there was a problem with GoReleaser. Follow the docs to install it https://goreleaser.com/install\n"; exit $$code)
-	GOOS=linux GOPATH=$(shell go env GOPATH) goreleaser build --rm-dist --debug --snapshot --id kubernetes-ingress --single-target
+	GOOS=linux GOPATH=$(shell go env GOPATH) GOARCH=$(ARCH) goreleaser build --rm-dist --debug --snapshot --id kubernetes-ingress --single-target
 
 .PHONY: debian-image
 debian-image: build ## Create Docker image for Ingress Controller (Debian)

build/Dockerfile

@@ -198,24 +198,24 @@ ARG TARGETPLATFORM
 ARG NAP_MODULES=none
 
 # copy oidc files on plus build
-RUN --mount=target=/tmp [ -n "${BUILD_OS##*plus*}" ] && exit 0; mkdir -p etc/nginx/oidc/ && cp -a /tmp/internal/configs/oidc/* /etc/nginx/oidc/
+RUN --mount=type=bind,target=/tmp [ -n "${BUILD_OS##*plus*}" ] && exit 0; mkdir -p /etc/nginx/oidc/ && cp -a /tmp/internal/configs/oidc/* /etc/nginx/oidc/
 
 # run only on nap waf build
-RUN --mount=target=/tmp [ -n "${NAP_MODULES##*waf*}" ] && exit 0; mkdir -p /etc/nginx/waf/nac-policies /etc/nginx/waf/nac-logconfs /etc/nginx/waf/nac-usersigs /var/log/app_protect /opt/app_protect \
+RUN --mount=type=bind,target=/tmp [ -n "${NAP_MODULES##*waf*}" ] && exit 0; mkdir -p /etc/nginx/waf/nac-policies /etc/nginx/waf/nac-logconfs /etc/nginx/waf/nac-usersigs /var/log/app_protect /opt/app_protect \
 	&& chown -R 101:0 /etc/app_protect /usr/share/ts /var/log/app_protect/ /opt/app_protect/ /var/log/nginx/ \
 	&& touch /etc/nginx/waf/nac-usersigs/index.conf \
 	&& cp -a /tmp/build/log-default.json /etc/nginx
 
 # run only on nap dos build
-RUN --mount=target=/tmp [ -n "${NAP_MODULES##*dos*}" ] && exit 0; mkdir -p /root/app_protect_dos /etc/nginx/dos/policies /etc/nginx/dos/logconfs /shared/cores /var/log/adm /var/run/adm \
+RUN [ -n "${NAP_MODULES##*dos*}" ] && exit 0; mkdir -p /root/app_protect_dos /etc/nginx/dos/policies /etc/nginx/dos/logconfs /shared/cores /var/log/adm /var/run/adm \
 	&& chmod 777 /shared/cores /var/log/adm /var/run/adm /etc/app_protect_dos
 
-RUN --mount=target=/tmp mkdir -p /var/lib/nginx /etc/nginx/secrets /etc/nginx/stream-conf.d \
+RUN --mount=type=bind,target=/tmp mkdir -p /var/lib/nginx /etc/nginx/secrets /etc/nginx/stream-conf.d \
 	&& setcap 'cap_net_bind_service=+ep' /usr/sbin/nginx 'cap_net_bind_service=+ep' /usr/sbin/nginx-debug \
 	&& setcap -v 'cap_net_bind_service=+ep' /usr/sbin/nginx 'cap_net_bind_service=+ep' /usr/sbin/nginx-debug \
 	&& [ -z "${BUILD_OS##*plus*}" ] && PLUS=-plus; cp -a /tmp/internal/configs/version1/nginx$PLUS.ingress.tmpl /tmp/internal/configs/version1/nginx$PLUS.tmpl \
 	/tmp/internal/configs/version2/nginx$PLUS.virtualserver.tmpl /tmp/internal/configs/version2/nginx$PLUS.transportserver.tmpl / \
-	&& chown -R 101:0 /etc/nginx /etc/nginx/secrets /var/cache/nginx /var/lib/nginx /*.tmpl \
+	&& chown -R 101:0 /etc/nginx /var/cache/nginx /var/lib/nginx /*.tmpl \
 	&& rm -f /etc/nginx/conf.d/* /etc/apt/apt.conf.d/90pkgs-nginx /etc/apt/sources.list.d/nginx-plus.list
 
 # Uncomment the line below if you would like to add the default.pem to the image

build/README.md

@@ -1,3 +1,3 @@
 # NGINX Ingress Controller
 
-This doc is now available at https://docs.nginx.com/nginx-ingress-controller/installation/building-ingress-controller-image/
+This doc is now available at https://docs.nginx.com/nginx-ingress-controller/installation/building-ingress-controller-image/

docs/content/installation/building-ingress-controller-image.md

@@ -105,7 +105,8 @@ A few other useful targets:
 ### Makefile Variables
 
 The **Makefile** contains the following main variables for you to customize (either by changing the Makefile or by overriding the variables in the make command):
+* **ARCH** -- the architecture of the image (and the binary). The default value is `amd64`. The most common architectures are `amd64` and `arm64`. Some other popular options are `arm`, `ppc64le` and `s390x`.
 * **PREFIX** -- the name of the image. The default is `nginx/nginx-ingress`.
 * **TAG** -- the tag added to the image. It's set to the version of the Ingress Controller by default.
 * **DOCKER_BUILD_OPTIONS** -- the [options](https://docs.docker.com/engine/reference/commandline/build/#options) for the `docker build` command. For example, `--pull`.
-* **TARGET** -- By default, the Ingress Controller is compiled locally using a `local` golang environment. If you want to compile the Ingress Controller using your local golang environment, make sure that the Ingress Controller repo is in your `$GOPATH`. To compile the Ingress Controller using the Docker [golang](https://hub.docker.com/_/golang/) container, specify `TARGET=container`. If you checked out a tag or are on the latest commit on `main` you can specify `TARGET=download` to avoid compiling the binary.
+* **TARGET** -- by default, the Ingress Controller is compiled locally using a `local` golang environment. If you want to compile the Ingress Controller using your local golang environment, make sure that the Ingress Controller repo is in your `$GOPATH`. To compile the Ingress Controller using the Docker [golang](https://hub.docker.com/_/golang/) container, specify `TARGET=container`. If you checked out a tag or are on the latest commit on `main` you can specify `TARGET=download` to avoid compiling the binary.