+++ This bug was initially created as a clone of Bug #1638658 +++

Description of problem:
Deploy prometheus v3.9.45-1

# oc -n openshift-metrics get pod -o wide
NAME                             READY     STATUS    RESTARTS   AGE       IP               NODE
prometheus-0                     6/6       Running   0          3h        10.2.2.4         share3-wmengr76o39-master-etcd-2
prometheus-node-exporter-25v67   1/1       Running   0          3h        192.168.100.14   share3-wmengr76o39-nrri-1
prometheus-node-exporter-9v6gs   1/1       Running   0          3h        192.168.100.12   share3-wmengr76o39-master-etcd-3
prometheus-node-exporter-bkn67   1/1       Running   0          3h        192.168.100.20   share3-wmengr76o39-node-primary-3
prometheus-node-exporter-d9wfc   1/1       Running   0          3h        192.168.100.8    share3-wmengr76o39-node-primary-1
prometheus-node-exporter-fnngw   1/1       Running   0          3h        192.168.100.9    share3-wmengr76o39-nrri-2
prometheus-node-exporter-g7km9   1/1       Running   0          3h        192.168.100.4    share3-wmengr76o39-master-etcd-1
prometheus-node-exporter-jlf2v   1/1       Running   0          3h        192.168.100.16   share3-wmengr76o39-node-primary-2
prometheus-node-exporter-k986p   1/1       Running   0          3h        192.168.100.7    share3-wmengr76o39-master-etcd-2


Checked the targets, Endpoints for alertmamager and alert-buffer are down
target for alertmamager and alert-buffer gave HTTP response to HTTPS client.

# oc -n openshift-metrics rsh prometheus-0
sh-4.2$ curl -k https://10.2.2.4:9093/metrics 
curl: (35) SSL received a record that exceeded the maximum permissible length.

Test with http, thers are metrics output
sh-4.2$ curl -k http://10.2.2.4:9093/metrics
# HELP alertmanager_alerts How many alerts by state.
# TYPE alertmanager_alerts gauge
alertmanager_alerts{state="active"} 0
alertmanager_alerts{state="suppressed"} 0
# HELP alertmanager_alerts_invalid_total The total number of received alerts that were invalid.
# TYPE alertmanager_alerts_invalid_total counter
alertmanager_alerts_invalid_total 0
# HELP alertmanager_build_info A metric with a constant '1' value labeled by version, revision, branch, and goversion from which alertmanager was built.
# TYPE alertmanager_build_info gauge
................................................................................


Version-Release number of selected component (if applicable):
prometheus v3.9.45-1

How reproducible:
Always

Steps to Reproduce:
1. Deploy prometheus v3.9.45-1 and check /targets page
2.
3.

Actual results:
endpoint for alertmamager and alert-buffer gave HTTP response to HTTPS client

Expected results:
endpoint should are in UP state

Additional info: