nodepool: Add support for building openSUSE Leap 15.0

openSUSE Leap 15.0 has been released, so add support for building
dib images.

Change-Id: I45bbb42c2520529301a15b3a37a31a4f35c00e63
Depends-On: https://review.openstack.org/#/c/566924/

nodepool/nodepool.yaml

@@ -49,6 +49,8 @@ providers:
         config-drive: true
       - name: opensuse-423
         config-drive: true
+      - name: opensuse-150
+        config-drive: true
       - name: opensuse-tumbleweed
         config-drive: true
       - name: ubuntu-bionic
@@ -229,6 +231,27 @@ diskimages:
       DIB_DISTRIBUTION_MIRROR: 'http://mirror.dfw.rax.openstack.org/opensuse'
       GIT_HTTP_LOW_SPEED_TIME: '300'
       GIT_HTTP_LOW_SPEED_LIMIT: '1000'
+  - name: opensuse-150
+    pause: false
+    elements:
+      - opensuse-minimal
+      - vm
+      - simple-init
+      - openstack-repos
+      - nodepool-base
+      - cache-devstack
+      - growroot
+      - infra-package-needs
+    release: '15.0'
+    env-vars:
+      TMPDIR: /opt/dib_tmp
+      DIB_CHECKSUM: '1'
+      DIB_IMAGE_CACHE: /opt/dib_cache
+      QEMU_IMG_OPTIONS: compat=0.10
+      DIB_GRUB_TIMEOUT: '0'
+      DIB_DISTRIBUTION_MIRROR: 'http://mirror.dfw.rax.openstack.org/opensuse'
+      GIT_HTTP_LOW_SPEED_TIME: '300'
+      GIT_HTTP_LOW_SPEED_LIMIT: '1000'
   - name: opensuse-tumbleweed
     pause: false
     elements: