NETOBSERV-374 - Improve the 0-click Loki install

[jpinsonneau]

• update zero-click loki config
  • improved compactor / ingester / query configurations
  • increase limits
  • updated loki version to 2.5.0
• added new distributed-loki
  • Deployments:
    • distributor
    • query front end
  • StatefulSets:
    • ingester
    • querier
      These statefulSets uses volumeClaimTemplates that create a PersistentVolumeClaim for each pod.

Run kubectl apply -f ./examples/distributed-loki/ -n network-observability --recursive to deploy scalable loki

By default you will have 2 instances of each pod replicas: 2

[mariomac]

If I deploy Loki with these descriptors, I get the following error in the console:

I guess the issue is that there is no loki service, which is the default service for both ingester and querier in the FlowCollector description. Current services are:

loki-distributed-distributor             ClusterIP   172.30.96.13     <none>        3100/TCP,9095/TCP                     11m
loki-distributed-ingester                ClusterIP   172.30.180.46    <none>        3100/TCP,9095/TCP                     11m
loki-distributed-ingester-headless       ClusterIP   None             <none>        3100/TCP,9095/TCP                     11m
loki-distributed-memberlist              ClusterIP   None             <none>        7946/TCP                              11m
loki-distributed-querier                 ClusterIP   172.30.216.53    <none>        3100/TCP,9095/TCP                     11m
loki-distributed-querier-headless        ClusterIP   None             <none>        3100/TCP,9095/TCP                     11m
loki-distributed-query-frontend          ClusterIP   None             <none>

[jpinsonneau]

I guess the issue is that there is no loki service, which is the default service for both ingester and querier in the FlowCollector description.

Correct I forgot to provide the updated version of flows_v1alpha1_flowcollector.yaml for this loki config
I'll add this to a separate file

[jpinsonneau]

• added section about NOO url configuration
• added storage configuration

[jotak]

Tested both install modes (zero-click and distributed), both worked fine for me
/lgtm

Just a remark: we may want to script the distributed install mode (maybe in operator's make), and for that probably we may have to modify a little bit the configmap template so that we can just inject a few relevant variables. I started to write a script for myself, will see how I can share for more automation.