Update diskimages to be ubuntu-xenial

1163814a · Stenio Araujo · 04a2fc8d · 1163814a
Commit 1163814a authored Mar 03, 2017 by Stenio Araujo
--- a/nodepool/nodepool.yaml
+++ b/nodepool/nodepool.yaml
@@ -51,7 +51,7 @@ diskimages:
        - growroot
        - infra-package-needs
        - stackviz
-      release: trusty
+      release: xenial
      env-vars:
        TMPDIR: /opt/dib_tmp
        DIB_IMAGE_CACHE: /opt/dib_cache