https://gitlab.com/gitlab-org/gitlab-ce/issues/62971
Adds support to EnvironmentsController#metrics_dashboard
for the following params: group, title, y_label
These params are used to uniquely identify a panel on
the metrics dashboard.
Metrics are stored in several places, so this adds
utilities to find a specific panel from the database
or filesystem depending on the metric specified.
Also moves some shared utilities into separate classes,
notably default values and errors.
This commits adds support for metrics dashboards
for embedding. If the flag 'embedded' is provided
to the environments/id/metrics_dashboard endpoint,
the response will be suitable for embedding in
issues or other content.
This is a precursor for support for embedding
metrics in GFM.
Adds a new stage to dashboard processesing step for the
EnvironmentsController::metrics_dashboard endpoint.
Allows the front end to avoid generating the endpoint
unitutive string mutations.
