[ERROR] Cannot connect grafana cloud with local grafana instance

  • What Grafana version and what operating system are you using?
    Grafana v10.3.3 (252761264e)
  • What are you trying to achieve?
    Connect Grafana-cloud synthetic monitoring with local grafana instance
  • How are you trying to achieve it?
  1. Grafana cloud stack was created
  2. Loki and Prometheus cloud created
  3. Provisioning yaml file configured on local grafana instance
apiVersion: 1

apps:
  - type: grafana-synthetic-monitoring-app
    name: grafana-synthetic-monitoring-app
    disabled: false
    jsonData:
      apiHost: synthetic-api-eu-north-0.grafana.net
      stackId: 87343
      logs:
        grafanaName: grafana-cloud-loki
        hostedId: 82942
      metrics:
        grafanaName: grafana-cloud-prometheus
        hostedId: 145917
    secureJsonData:
      publisherToken: glc_eyJvIjoiM***
  1. nginx conf
server {
 listen 443 ssl http2;
 server_name local.local.io;

 index index.html index.htm;

 location / {
   proxy_pass http://localhost:3000/;
   proxy_set_header Host $host;
   proxy_set_header X-Real-IP $remote_addr;
   proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
   proxy_set_header X-Forwarded-Proto $scheme;
 }

 ssl_certificate /etc/nginx/cert/cert.crt;
 ssl_certificate_key /etc/nginx/cert/key.key;

 ssl_ciphers EECDH:+AES256:-3DES:RSA+AES:RSA+3DES:!NULL:!RC4:!RSA+3DES;
 ssl_prefer_server_ciphers on;
 ssl_protocols TLSv1.1 TLSv1.2;
}
logger=context userId=1 orgId=1 uname=admin t=2024-03-07T10:56:05.583458674+05:00 level=error msg="Request Completed" method=POST path=/api/plugin-proxy/grafana-synthetic-monitoring-app/install status=502 remote_addr=10.80.20.5 time_ms=13 duration=13.177717ms size=0 referer=https:/local.local.io/a/grafana-synthetic-monitoring-app/home handler=/api/plugin-proxy/:pluginId/*
logger=data-proxy-log userId=1 orgId=1 uname=admin path=/api/plugin-proxy/grafana-synthetic-monitoring-app/install remote_addr=10.80.20.5 referer=https://local.local.io/a/grafana-synthetic-monitoring-app/home t=2024-03-07T10:59:55.103559918+05:00 level=error msg="Proxy request failed" err="unsupported protocol scheme \"\""

I have the same issue here. Same log error. The only exception is that I am using Traefik instead of nginx.
@autemissov did you managed to get it to work?

@autemissov
I managed to make it work
Access your instance without the reverse proxy.
Click on get started and then re-proxy it.
Should work now

For me, the workaround does not work. Same error message and log entry as with access to instance with reverse proxy. Any hints how to get it working?

The same problem - any workaround or hint?