Metricbeat: 7.10.2
We have several mongodb instances across many clusters and would like to enhance the metrics output of all our mongo pods so we can start making some pretty graphs.
I've been trying, in vein, to get autodiscover to play along nicely with templating out a mongodb module using autodiscover. I'm completely stumped. I've poured over the docs and I am unable to get any metrics flowing into Kibana.
This is what I have:
metricbeat.autodiscover:
providers:
- type: kubernetes
host: ${HOSTNAME}
templates:
- condition.equals:
kubernetes.labels.k8s-app: mongodb
config:
- module: mongodb
period: 30s
hosts: ["mongodb://${DB_USERNAME}:${MONGO_PASSWORD}@${data.kubernetes.pod.name}.${data.kubernetes.namespace}-headless.${data.kubernetes.namespace}.svc.cluster.local:27017/?authSource=admin&replicaSet=rs0"]
metricsets: ["dbstats", "status", "metrics"]
as a standard test, I can create a standard, manual configuration:
mongodb.yml: |-
- module: mongodb
period: 60s
hosts:
- 'mongodb://${DB_USERNAME}:${MONGO_PASSWORD}@mongo-dev-0.mongo-dev-headless.mongo-dev.svc.cluster.local:27017/?authSource=admin&replicaSet=rs0'
- 'mongodb://${DB_USERNAME}:${MONGO_PASSWORD}@mongo-dev-1.mongo-dev-headless.mongo-dev.svc.cluster.local:27017/?authSource=admin&replicaSet=rs0'
- 'mongodb://${DB_USERNAME}:${MONGO_PASSWORD}@mongo-dev-2.mongo-dev-headless.mongo-dev.svc.cluster.local:27017/?authSource=admin&replicaSet=rs0'
enabled: true
metricsets:
- dbstats
- status
- metrics
this of course, works just fine. As you can imagine, this is less than Ideal. We have far too many instances (and more popping up soon!) to have this done manually. I really like my automation and templating 
Since this is on kubernetes, I have used this on both daemonset configs and standard deployments to no avail.
Have I missed something here? Have I done something horribly wrong?