pillar:

nova_endpoint: 'http://cloud-a:8774/v2/%(tenant_id)s'

state:

cloud-builder:
  cmd.script:
    - source: salt://keystone/cloud-builder.sh
    - cwd: /var/tmp
    - user: root
    - unless: test -f /var/log/cloud-builder.log
    - require:
      - service: keystone
      - pkg: keystone
    - template: jinja
    - defaults:
      nova_endpoint: {{pillar['nova_url']}}

snip of cloud-builder.sh
NOVA_ENDPOINT_ID=`keystone endpoint-create --region {{pillar_env}} --service $NOVA_SERVICE_ID --publicurl '{{nova_endpoint|e}}' --adminurl '{{nova_endpoint|e}}' --internalurl '{{nova_endpoint|e}}' |head -4 |grep id |awk '{print $4}'`


result
NOVA_ENDPOINT_ID=`keystone endpoint-create --region cloud --service $NOVA_SERVICE_ID --publicurl 'http://cloud-a:8774/v2' --adminurl 'http://cloud-a:8774/v2' --internalurl 'http://cloud-a:8774/v2' |head -4 |grep id |awk '{print $4}'`