Use hugo Docker image in Makefile

Removes the local dependency on hugo for building.

Makefile

@@ -1,4 +1,3 @@
-HUGO := hugo
 HUGO_VERSION := 0.53
 HTMLPROOFER_VERSION := 3.10.2
 GCLOUD := gcloud
@@ -43,12 +42,29 @@ content/docs/community/sigs: upstream/community $(wildcard upstream/community/si
 $(APP_TARGET): public $(APP_SOURCE)
 	cp -a cmd/gvisor-website/$(patsubst public/%,%,$@) public/
 
-static-production: compatibility-docs node_modules config.toml $(shell find archetypes assets content themes -type f | sed 's/ /\\ /g')
-	HUGO_ENV="production" $(HUGO)
+static-production: hugo-docker-image compatibility-docs node_modules config.toml $(shell find archetypes assets content themes -type f | sed 's/ /\\ /g')
+	docker run \
+	  -e HUGO_ENV="production" \
+	  -e USER="$(shell id -u)" \
+	  -e HOME="/tmp" \
+	  -u="$(shell id -u):$(shell id -g)" \
+	  -v $(PWD):/workspace \
+	  -w /workspace \
+	  gcr.io/gvisor-website/hugo:$(HUGO_VERSION) \
+	  hugo
 .PHONY: static-production
 
-static-staging: compatibility-docs node_modules config.toml $(shell find archetypes assets content themes -type f | sed 's/ /\\ /g')                           
-	$(HUGO) -b  "https://staging-$(shell git branch | grep \* | cut -d ' ' -f2)-dot-gvisor-website.appspot.com"
+static-staging: hugo-docker-image compatibility-docs node_modules config.toml $(shell find archetypes assets content themes -type f | sed 's/ /\\ /g')                           
+	docker run \
+	  -e HUGO_ENV="production" \
+	  -e USER="$(shell id -u)" \
+	  -e HOME="/tmp" \
+	  -u="$(shell id -u):$(shell id -g)" \
+	  -v $(PWD):/workspace \
+	  -w /workspace \
+	  gcr.io/gvisor-website/hugo:$(HUGO_VERSION) \
+	  hugo \
+	    -b "https://staging-$(shell git branch | grep \* | cut -d ' ' -f2)-dot-gvisor-website.appspot.com"
 .PHONY: static-staging
 
 node_modules: package.json package-lock.json
@@ -84,13 +100,24 @@ compatibility-docs: bin/generate-syscall-docs upstream/gvisor/bazel-bin/runsc/li
 	./upstream/gvisor/bazel-bin/runsc/linux_amd64_pure_stripped/runsc help syscalls -o json | ./bin/generate-syscall-docs -out ./content/docs/user_guide/compatibility/
 .PHONY: compatibility-docs
 
-check: website
-	docker run -v $(shell pwd)/public:/public gcr.io/gvisor-website/html-proofer:3.10.2 htmlproofer --disable-external --check-html public/static
+check: htmlproofer-docker-image website
+	docker run -v $(shell pwd)/public:/public gcr.io/gvisor-website/html-proofer:$(HTMLPROOFER_VERSION) htmlproofer --disable-external --check-html public/static
 .PHONY: check
 
 # Run a local content development server. Redirects will not be supported.
-devserver: all-upstream compatibility-docs
-	$(HUGO) server -FD --port 8080
+devserver: hugo-docker-image all-upstream compatibility-docs
+	docker run \
+	  -e USER="$(shell id -u)" \
+	  -e HOME="/tmp" \
+	  -u="$(shell id -u):$(shell id -g)" \
+	  -v $(PWD):/workspace \
+	  -w /workspace \
+	  -p 8080:8080 \
+	  gcr.io/gvisor-website/hugo:$(HUGO_VERSION) \
+	  hugo server \
+		-FD \
+		--bind 0.0.0.0 \
+		--port 8080
 .PHONY: server
 
 server: website
@@ -116,16 +143,14 @@ stage: all-upstream app static-staging
 cloud-build:
 	gcloud builds submit --config cloudbuild.yaml .
 
-# Build and push the hugo Docker image used by Cloud Build.
+# Build the hugo Docker image.
 hugo-docker-image:
 	docker build --build-arg HUGO_VERSION=$(HUGO_VERSION) -t gcr.io/gvisor-website/hugo:$(HUGO_VERSION) cloudbuild/hugo/
-	docker push gcr.io/gvisor-website/hugo:$(HUGO_VERSION)
 .PHONY: hugo-docker-image
 
-# Build and push the html-proofer image used by Cloud Build.
+# Build the html-proofer image used by Cloud Build.
 htmlproofer-docker-image:
 	docker build --build-arg HTMLPROOFER_VERSION=$(HTMLPROOFER_VERSION) -t gcr.io/gvisor-website/html-proofer:$(HTMLPROOFER_VERSION) cloudbuild/html-proofer/
-	docker push gcr.io/gvisor-website/html-proofer:$(HTMLPROOFER_VERSION)
 .PHONY: htmlproofer-docker-image
 
 clean:

cloudbuild/html-proofer/Dockerfile

@@ -13,7 +13,7 @@ RUN set -x \
             libcurl \
             libxml2-dev \
             libxslt-dev \
-            openssh
+            openssh \
         && gem install \
             html-proofer:${HTMLPROOFER_VERSION} \
             nokogiri:1.10.1 \