---
summary: >
  Updated the StackLight components to newer versions

upgrade:
  - |
    Updated the following StackLight components:

    - Prometheus server to version 2.0.0
    - Alertmanager to version 0.11.0
    - Pushgateway to version 0.4.0

    .. important::

       The new version of Prometheus is not backward compatible
       with previous versions. Therefore, you must upgrade the
       monitoring stack as described in the MCP Operations Guide.

       If You want to stick to 1.7 (NOT RECOMMENDATED), update
       reclass model:

      .. code-block:: yaml

         _param:
           docker_image_alertmanager: docker-prod-virtual.docker.mirantis.net/openstack-docker/alertmanager:20171222124606
           docker_image_pushgateway: docker-prod-virtual.docker.mirantis.net/openstack-docker/pushgateway:20171222124606
           docker_image_prometheus: docker-prod-virtual.docker.mirantis.net/openstack-docker/prometheus:20171222124606
           docker_image_remote_storage_adapter: docker-prod-virtual.docker.mirantis.net/openstack-docker/remote_storage_adapter:20171222124606
         docker:
           client:
             stack:
               monitoring:
                 service:
                   server:
                     environment:
                       PROMETHEUS_STORAGE_LOCAL_ENGINE: persisted
                       PROMETHEUS_STORAGE_LOCAL_TARGET_HEAP_SIZE: 3221225472
                       PROMETHEUS_STORAGE_LOCAL_NUM_FINGERPRINT_MUTEXES: 4096

         prometheus:
           server:
             version: 1.7


    .. TODO: Add a link to the upgrade procedure.