build: Split out building for debian-{base,iptables} and pause images

- Eliminates a failure in one image build from prevent the others
- Allows subdir approvers ownership over individual builds
- Makes cleanup a little easier if one or more of these images go away

Signed-off-by: Stephen Augustus <saugustus@vmware.com>

build/cloudbuild.yaml

@@ -1,39 +0,0 @@
-# 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
-    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/$PROJECT_ID/debian-iptables
-    args:
-      - all-push
-  - name: 'gcr.io/k8s-testimages/gcb-docker-gcloud:v20200422-b25d964'
-    entrypoint: 'bash'
-    dir: ./build/pause
-    env:
-      - DOCKER_CLI_EXPERIMENTAL=enabled
-      - REGISTRY=gcr.io/$PROJECT_ID
-      - IMAGE=gcr.io/$PROJECT_ID/pause
-      - HOME=/root
-    args:
-      - '-c'
-      - |
-        gcloud auth configure-docker \
-        && make all-push

build/debian-base/cloudbuild.yaml

@@ -0,0 +1,15 @@
+# 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
+    env:
+      - DOCKER_CLI_EXPERIMENTAL=enabled
+      - REGISTRY=gcr.io/$PROJECT_ID
+      - IMAGE=gcr.io/$PROJECT_ID/debian-base
+      - BUILD_IMAGE=debian-build
+    args:
+      - all-push

build/debian-iptables/cloudbuild.yaml

@@ -0,0 +1,15 @@
+# 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
+    env:
+      - DOCKER_CLI_EXPERIMENTAL=enabled
+      - REGISTRY=gcr.io/$PROJECT_ID
+      - BASE_REGISTRY=gcr.io/$PROJECT_ID
+      - IMAGE=gcr.io/$PROJECT_ID/debian-iptables
+    args:
+      - all-push

build/pause/cloudbuild.yaml

@@ -0,0 +1,19 @@
+# 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: '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