KeyError for units that were added by add_unit

[Matt Bruzek]

I am using the new add_unit() method in amulet and I can not access any of the additional units as I would the normal units.

Traceback (most recent call last):
  File "tests/10-deploy-test.py", line 98, in <module>
    osd_units.append(d.sentry.unit['ceph-osd/%s' % n])
KeyError: 'ceph-osd/1'

The juju status command shows me that there is a unit named "ceph-osd/1" in my deployment.
$ juju status
environment: hp-mbruzek
machines:
  "0":
    agent-state: started
    agent-version: 1.17.6
    dns-name: 15.185.121.156
    instance-id: "3821995"
    instance-state: ACTIVE
    series: precise
    hardware: arch=amd64 cpu-cores=1 mem=1024M root-disk=30720M
  "1":
    agent-state: started
    agent-version: 1.17.6
    dns-name: 15.185.92.50
    instance-id: "3822055"
    instance-state: ACTIVE
    series: precise
    hardware: arch=amd64 cpu-cores=1 mem=1024M root-disk=30720M
  "2":
    agent-state: started
    agent-version: 1.17.6
    dns-name: 15.185.126.75
    instance-id: "3822059"
    instance-state: ACTIVE
    series: precise
    hardware: arch=amd64 cpu-cores=1 mem=1024M root-disk=30720M
  "3":
    agent-state: started
    agent-version: 1.17.6
    dns-name: 15.185.90.136
    instance-id: "3822061"
    instance-state: ACTIVE
    series: precise
            upgrading-from: local:precise/ceph-radosgw-sentry-0
            agent-state: started
            agent-version: 1.17.6
            open-ports:
            - 9001/tcp
            public-address: 15.185.90.136
  ceph-radosgw-sentry:
    charm: local:precise/ceph-radosgw-sentry-0
    exposed: true
    relations:
      juju-info:
      - ceph-radosgw
    subordinate-to:
    - ceph-radosgw
  ceph-sentry:
    charm: local:precise/ceph-sentry-0
    exposed: true
    relations:
      juju-info:
      - ceph
    subordinate-to:
    - ceph
  relation-sentry:
    charm: local:precise/relation-sentry-0
    exposed: true
    relations:
      provides-ceph_osd-ceph-osd_mon:
      - ceph
      provides-ceph_radosgw-ceph-radosgw_mon:
      - ceph
      requires-ceph_osd-ceph-osd_mon:
      - ceph-osd
      requires-ceph_radosgw-ceph-radosgw_mon:
      - ceph-radosgw
    units:
      relation-sentry/0:
        agent-state: started
        agent-version: 1.17.6
        machine: "4"
        open-ports:
        - 9001/tcp
        public-address: 15.185.124.64

Please let me know if you need any other information.

[Tim Van Steenburgh (tvansteenburgh)]

Fix pushed to https://github.com/marcoceppi/amulet/pull/29