Not able to receive resolved alerts in slack

[johnreytanquinco]

I have configured alert manager to send alerts in slack. I was able to send failure alerts but not the resolved ones. For example, I have a container_wordpress_down rule, I stop the container, and I receive the failure alert. I started back wordpress and according to my http://<host-ip>:9093, it was already resolved but haven't receive the resolved alert to slack.

route:
  receiver: 'slack'

receivers:
  - name: 'slack'
    slack_configs:
      - send_resolved: true
...

As expected the above config should satisfy the condition and should be able to send resolved alert or am I missing something? Hope someone can help. Thanks!

[nightah]

Seems related to #192.