Sametime 12.0.2 statistics & settings are gone after restart server

Because of the strange default settings in the Sametime V12.0.2 Docker configuration, all changes in Grafana and Prometheus are gone after you bring the docker containers down and/or when you restart the server.

By default, HCL decided that Grafana stores information inside the container.
By default, HCL decided that Prometheus data is stored on the host in /tmp/prometheus

When you bring down the Docker containers, Grafana information is gone.
When you restart the entire server, /tmp is cleared and therefor all statistics

Prometheus issue is easy to solve, just change the local path to another location outside /tmp
Grafana also need a local, or Docker storage, outside it’s own container.

This is the strange default docker-compose.yml file delivered by HCL ( only 2 parts of it ):

prometheus:
  image: prom/prometheus:latest
  user: root
  profiles:
    - monitoring
  volumes:
    - /tmp/prometheus:/prometheus
    - ./prometheus.yml:/etc/prometheus/prometheus.yml
  command:
    - '--config.file=/etc/prometheus/prometheus.yml'
  networks:
    sametime.test:


grafana:
  image: grafana/grafana
  user: root
  profiles:
    - monitoring
  depends_on:
    - prometheus
  ports:
    - 3001:3000
  volumes:
    - ./grafana/provisioning/:/etc/grafana/provisioning/
  env_file:
    - ./monitoring.env
  networks:
    sametime.test:
  restart: always

How to change it all?

Create 2 mounts or folders on you Docker host:

/data/prometheus
/data/grafana

For Prometheus you change the following lines in docker-compose.yml in the prometheus section:

volumes:
  - /tmp/prometheus:/prometheus

to

volumes:
  - /data/prometheus:/prometheus   

For Grafana you have to change the following lines in docker-compose.yml in the grafana section:

volumes:
  - ./grafana/provisioning/:/etc/grafana/provisioning/

to

volumes:
  - ./grafana/provisioning/:/etc/grafana/provisioning/
  - /data/grafana:/var/lib/grafana

Now just restart prometheus and grafana

docker-compose -f docker.compose.yml down grafana
docker-compose -f docker.compose.yml down prometheus

docker-compose -f docker.compose.yml up -d grafana
docker-compose -f docker.compose.yml up -d prometheus

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