Example manifests for solo bosh on aws & openstack
bosh releases --jobs - shows available job names

Optional --jobs flag shows the available job template names
in each release version; if the director returns
the "job_names" key in its GET /releases endpoint.

Targeting director without API support:

    +-------+-----------+-------------+-------+
    | Name  | Versions  | Commit Hash | Jobs  |
    +-------+-----------+-------------+-------+
    | bosh  | 13.1-dev  | d380ee49+   | n/a   |
    |       | 13.2-dev  | d380ee49+   | n/a   |
    |       | 13.3-dev  | d380ee49+   | n/a   |
    |       | 13.4-dev  | ec1936b7+   | n/a   |
    |       | 13.5-dev* | d380ee49+   | n/a   |
    | redis | 1         | 59e77715+   | n/a   |
    +-------+-----------+-------------+-------+

Targeting director with API support:

    +-------+----------+-------------+--------------------------------------------------------------------------------+
    | Name  | Versions | Commit Hash | Jobs                                                                           |
    +-------+----------+-------------+--------------------------------------------------------------------------------+
    | bosh  | 13.4-dev | ec1936b7+   | blobstore, director, health_monitor, nats, postgres, powerdns, redis, registry |
    | redis | 1        | 59e77715+   | redis                                                                          |
    +-------+----------+-------------+--------------------------------------------------------------------------------+
Make S3 endpoint configurable
[bosh_agent] CentOS support in the agent

- refactored the classes for the Linux flavors
[openstack_cpi] Wait for image (stemcell) to be active

Requires to upgrade fog gem to v1.12.1
Merge pull request #274 from pmenglund/centos_agent

[bosh_agent] CentOS support in the agent
Merge pull request #279 from cloudfoundry/openstack_images

[openstack_cpi] Wait for image (stemcell) to be active
[openstack_cpi] Check security groups exists
grammar correction
updates of the zookeeper files
Revert "updates of the zookeeper files"

- pushed to the wrong repo

This reverts commit 1761c50130c596c0212ec8948ffc2bedb1fc403b.
Bosh agent listens for sshd auth syslogs and sends alerts to healthmonitor

[#48788109]
Make DataDog create alerts on submitted events

[#50018413]

DataDog was not designed for this. In order to make an event fire we
change the 'value' of the event and then alert when it crosses a certain
threshold. Unfortunately DataDog is not completely real time and there
seems to be some weirdness in how they calculate their rolling averages.
The process we use to trigger the event is as follows:

1. Submit a regular DataDog event so that it shows up in the event
   stream.

2. Submit a new set of metrics with an initial high value (10) to
   trigger the alert which is set to go off when the rolling average over
   the last 5 minutes is over a threshold (1).

3. Wait 2 minutes to make sure that DataDog has had time to catch the
   change and trigger the alert.

4. After the 2 minutes DataDog will continue through the other metrics
   in the initial set which contain a low value (0) and which fire 5 times
   over the next 10 minutes in order to aggressively bring the rolling
   average back to under 1 to end the alert.

The high initial value is required so that we alway trigger the
threshold crossing even if we have had recent '0' values which will
interfere with the rolling average. The multiple tear down values are
required to make sure that the rolling average comes down below the
threshold inside the rolling window otherwise the alert never ends.
Revert "Make DataDog create alerts on submitted events"

This reverts commit 471a0762532dda267aed0f0c8d3b64b878d9ac35.
Add a Datadog client that pages people upon events

[#50018413]

This is implemented as a decorator object to limit the leaky abstraction
that Datadog forces upon us. At the moment the health monitor is
required to know that we are using PagerDuty for our alerting. In the
future this change should be easy to remove so we can use the vanilla
Datadog client again.
Only create PagerDuty alerts if given service name

[#50018413]
Don't page someone if the datadog alert is 'low' priority
SSH login/logout events are sent out as healthmonitor alerts.

[finishes #48788109]
Allow datadog pagerduty service name to be set from manifest
Don't listen for login events if the --no-alerts flag is passed in