Add cloudbuild.yaml for debian-base/debian-iptables and pause

Tested this locally using:
```
gcloud builds submit --config build/cloudbuild.yaml .
```

Signed-off-by: Davanum Srinivas <davanum@gmail.com>

build/cloudbuild.yaml

@@ -0,0 +1,41 @@
+# See https://cloud.google.com/cloud-build/docs/build-config
+timeout: 1200s
+options:
+  substitution_option: ALLOW_LOOSE
+  machineType: 'N1_HIGHCPU_8'
+steps:
+  - name: 'gcr.io/k8s-testimages/gcb-docker-gcloud:v20200422-b25d964'
+    entrypoint: make
+    dir: ./build/debian-base
+    env:
+      - DOCKER_CLI_EXPERIMENTAL=enabled
+      - REGISTRY=gcr.io/$PROJECT_ID
+      - IMAGE=gcr.io/$PROJECT_ID/debian-base
+      - BUILD_IMAGE=debian-build
+      - HOME=/root
+    args:
+      - all-push
+  - name: 'gcr.io/k8s-testimages/gcb-docker-gcloud:v20200422-b25d964'
+    entrypoint: make
+    dir: ./build/debian-iptables
+    env:
+      - DOCKER_CLI_EXPERIMENTAL=enabled
+      - REGISTRY=gcr.io/$PROJECT_ID
+      - BASE_REGISTRY=gcr.io/$PROJECT_ID
+      - IMAGE=gcr.io/$PROJECT_ID/debian-iptables
+      - HOME=/root
+    args:
+      - all-push
+  - name: 'gcr.io/k8s-testimages/gcb-docker-gcloud:v20200422-b25d964'
+    entrypoint: 'bash'
+    dir: ./build/pause
+    env:
+      - DOCKER_CLI_EXPERIMENTAL=enabled
+      - REGISTRY=gcr.io/$PROJECT_ID
+      - IMAGE=gcr.io/$PROJECT_ID/pause
+      - HOME=/root
+    args:
+      - '-c'
+      - |
+        gcloud auth configure-docker \
+        && make all-push

build/debian-base/Makefile

@@ -25,7 +25,7 @@ ARCH?=amd64
 ALL_ARCH = amd64 arm arm64 ppc64le s390x
 
 TEMP_DIR:=$(shell mktemp -d)
-QEMUVERSION=v2.9.1
+QEMUVERSION=v4.2.0-6
 
 SUDO=$(if $(filter 0,$(shell id -u)),,sudo)
 

build/debian-iptables/Makefile

@@ -21,7 +21,8 @@ ARCH?=amd64
 ALL_ARCH = amd64 arm arm64 ppc64le s390x
 TEMP_DIR:=$(shell mktemp -d)
 
-BASEIMAGE?=k8s.gcr.io/debian-base-$(ARCH):v2.0.1
+BASE_REGISTRY?=k8s.gcr.io
+BASEIMAGE?=$(BASE_REGISTRY)/debian-base-$(ARCH):v2.0.1
 
 # This option is for running docker manifest command
 export DOCKER_CLI_EXPERIMENTAL := enabled

build/pause/Makefile

@@ -86,7 +86,7 @@ bin/$(BIN)-$(ARCH): $(SRCS)
 
 container: .container-$(ARCH)
 .container-$(ARCH): bin/$(BIN)-$(ARCH)
-	DOCKER_CLI_EXPERIMENTAL=enabled docker buildx build --pull --platform linux/$(ARCH) -t $(IMAGE_WITH_ARCH):$(TAG) --build-arg ARCH=$(ARCH) .
+	DOCKER_CLI_EXPERIMENTAL=enabled docker buildx build --load --pull --platform linux/$(ARCH) -t $(IMAGE_WITH_ARCH):$(TAG) --build-arg ARCH=$(ARCH) .
 	touch $@
 
 push: .push-$(ARCH)