Silencing entries are not working

[palourde]

Expected Behavior

I expect silenced events to not go through the pipeline, and therefore not be handled.

Current Behavior

Silenced events are currently handled!

$ date
Fri May  4 17:39:25 EDT 2018
$ sensuctl silenced list
         ID            Subscription     Check          Begin          Expire   ExpireOnResolve   Creator   Reason    Organization   Environment
 ─────────────────── ───────────────── ─────── ───────────────────── ──────── ───────────────── ───────── ───────── ────────────── ─────────────
  entity:i-424242:*   entity:i-424242           04 May 18 17:35 EDT   57m45s   false             admin     Testing   default        default
$ sensuctl event list
     Entity          Check        Output   Status   Silenced             Timestamp
 ────────────── ──────────────── ──────── ──────── ────────── ───────────────────────────────
  i-424242       check-random                   2   true       2018-05-04 17:39:37 -0400 EDT
# In sensu-backend logs:
{"component":"pipelined","environment":"default","handler":"slack","level":"info","msg":"event pipe handler executed","organization":"default","output":"","status":0,"time":"2018-05-04T17:37:37-04:00"}

And in Slack:

Possible Solution

Steps to Reproduce (for bugs)

1. Setup a check, with a handler
2. Assign this check's subscription to a running agent
3. Create a silencing subscription, with the begin field in a near future, e.g.

$ sensuctl silenced create \
--subscription 'entity:i-424242' \
--begin 'May 05 2018 9:34 UTC' \
--expire 3600 \
--reason 'Testing'

4. Observe the sensu-backend logs

Context

Your Environment

• Sensu version used (sensuctl, sensu-backend, and/or sensu-agent): master
• Installation method (packages, binaries, docker etc.): manually
• Operating System and version (e.g. Ubuntu 14.04): macOS 10.13.4