"Duplicate mount points" error during platform update

Problem

Platform update fails with an error. The installation log contains an error similar to:

Duplicate mount points: [/opt/ispsystem/vm/grafana:/var/lib/grafana:rw, /opt/ispsystem/vm/grafana:/var/lib/grafana:rw, /opt/ispsystem/vm/grafana-provisioning:/etc/grafana:rw, /opt/ispsystem/vm/grafana-provisioning:/etc/grafana:rw]

This occurs due to duplicate mount point entries for Grafana services in the Docker Compose configuration file.

Diagnosis

To confirm the cause of the error:

Connect to the server with the platform via SSH. For more information about connecting via SSH, see Workstation setup.

Check for the error in the installation log:

sudo grep -A2 -B2 "Duplicate mount points" /opt/ispsystem/vm/install.log

Expected Result: The log should contain the following error:

Duplicate mount points: [/opt/ispsystem/vm/grafana:/var/lib/grafana:rw, /opt/ispsystem/vm/grafana:/var/lib/grafana:rw, /opt/ispsystem/vm/grafana-provisioning:/etc/grafana:rw, /opt/ispsystem/vm/grafana-provisioning:/etc/grafana:rw]

Solution

To resolve the issue, remove the duplicate lines in the docker-compose.yaml file:

Connect to the server with the platform via SSH. For more information about connecting via SSH, see Workstation setup.
Create a backup of the /opt/ispsystem/vm/docker-compose.yaml file:
```
cp /opt/ispsystem/vm/docker-compose.yaml /root/
```
Open the file /opt/ispsystem/vm/docker-compose.yaml in a text editor.

In the grafana → volumes section, remove the following duplicate entries:

- /opt/ispsystem/vm/grafana:/var/lib/grafana
- /opt/ispsystem/vm/grafana-provisioning:/etc/grafana

Example section before editing

grafana:
    container_name: grafana
    image: docker-registry.ispsystem.com/team/vm/grafana:2.0.1
    volumes:
    - /opt/ispsystem/vm/grafana/:/var/lib/grafana/
    - /opt/ispsystem/vm/grafana-provisioning/:/etc/grafana/

Save the changes and exit the editor.
Run the platform update:
```
vm update
```

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