I want to modified grafana smtp config but I CAN NOT FIND grafana,ini

[seanlin1326]

I want to add more user in grafana by send email
But I found some error

I want to find grafana.ini to modified this

but my eye is bad
so I can not find grafana.ini in kube-prometheus
how to find grafana.ini

[olegmayko]

The project itself doesn't contain static grafana.ini, you need to customise it as shown in this readme

[songrijie]

Alternative to what @olegmayko said.

Since grafana can be configured with env variables, you may create a simple libsonnet like this. Do not forget to include this libsonnet in entrypoint mixin.

local k = import 'ksonnet/ksonnet.beta.4/k.libsonnet';
local env = k.apps.v1.deployment.mixin.spec.template.spec.containersType.envType;

{
    _config+:: {
        grafana+: {
            env+: [
                // SMTP
                env.new('GF_SMTP_ENABLED', 'true' ),
                env.new('GF_SMTP_FROM_ADDRESS', '[email protected]'),
                env.new('GF_SMTP_HOST','smtp.example.com:465'),
                env.new('GF_SMTP_USER','[email protected]'),
                env.new('GF_SMTP_PASSWORD','example'),

            ],
        },
    },
}

This idea comes from brancz/kubernetes-grafana

[rsoika]

Sorry for asking a stupid question:
How should I create the libsonnet? Should I create a file and call some kubectl command? Or shoud I ssh into the grafana container and do something there?
I am totally lost . I simply whant to edit the smtp configuration from grafana - how do do this?

[olegmayko]

you'd need to follow the compiling process and add the snippet from comment above into example.jsonnet.

[rsoika]

Ok, finally I found a more elegant way using kustomizaion.

I created a kustomization.yaml file like this one:

namespace: monitoring

bases:
- https://github.com/prometheus-operator/kube-prometheus

resources:
- ingress.yaml

patchesStrategicMerge:
- grafana-env.yaml

My grafana-env.yaml file looks like this:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: grafana
  namespace: monitoring
spec:
  template:
    spec:
      containers:
      - name: grafana
        env:
          - name: GF_SMTP_ENABLED
            value: "true"
          - name: GF_SMTP_HOST
            value: "my-mailgateway.kube-system:25"
          - name: GF_SMTP_FROM_ADDRESS
            value: "[email protected]"

To install and customize my setup a run:

# Checkout the project form Github
$ cd ~/kube-prometheus
$ kubectl apply -f manifests/setup
$ until kubectl get servicemonitors --all-namespaces ; do date; sleep 1; echo ""; done
$ kubectl apply -f manifests/

# Customize
$ kubectl apply --kustomize ../i/monitoring/

[dnaranjor]

@rsoika looks like that way we can achieve what we want, but I can't understand why are you pointing at the Grafana Ingress instead of the Grafana Deployment

Am I wrong?

BTW, in my case, no Helm Chart is being used, so I'm looking a way to manually configure Grafana SMTP just by "touching" the kube-prometheus manifests. I'm much more interested in my very own customized version of the stack.

[rsoika]

the ingress.yaml is just an additional resource I used in my kubernetes setup to ingress the grafana dashboard via NGINX reverse proxy. It has nothing to do with the deployment of grafana.
You can find my complete deployment setup here: https://github.com/imixs/imixs-cloud/blob/master/management/monitoring/imixs-prometheus/README.md