prometheus: keep all grafana functions under grafana flag

[maryamtahhan]

Tested with local_dev_cluster using:

export PROMETHEUS_ENABLE=true
export GRAFANA_ENABLE=true
./main.sh prerequisites
./main.sh up

also tested with kepler by patching the local copy of the repo and running

make OPTS="PROMETHEUS_DEPLOY" cluster-up cluster-deploy

[maryamtahhan]

It looks like the unit tests are all passing. so I'm marking this ready for review

@SamYuan1990 I think this addresses your concerns from #77

[SamYuan1990]

golang is not pre installed in this repo, hence when integration on a new created ec2 instance, this will fail. Is there any possible to use uname to replace goarch? or install yq without golang/ or jq?

[maryamtahhan]

yeah - I can get it to install without a golang dep - let me update

[SamYuan1990]

https://github.com/mikefarah/yq?tab=readme-ov-file#wget maybe we can use curl or wget instead of golang? and add wget/curl with just apt/yum.

[maryamtahhan]

Still updating this - will notify you when it's ready...

[UPDATE] - works in local_dev_cluster
for Kepler make OPTS="PROMETHEUS_DEPLOY" cluster-up cluster-deploy I need to update the tooling (tools.sh) in kepler to install yq, else the prometheus.sh script in local_dev_cluster will just skip the kepler-grafana-dashboard configuration part if yq isn't available (which is good, as it shows the functionality works and won't break ci if there's no yq :) )--> will post a PR to the kepler repo shortly - I will also add a curl command to vefify dashboard installation as part as the kepler verify.sh step as part of this new kepler PR

from local_dev_cluster POV - this is ready

[SamYuan1990]

LGTM, and @maryamtahhan please create another PR, at https://github.com/sustainable-computing-io/local-dev-cluster/blob/main/main.sh#L125 changing the output message as hit to user and document.