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docs: fix backup instructions — DB is on volume, not inside container
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@@ -264,23 +264,31 @@ The built-in MQTT broker (Mosquitto) runs on port 1883 with **anonymous access e
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### ⚠️ Database backups
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Your packet data lives in `/app/data/meshcore.db` (a SQLite file inside the `meshcore-data` Docker volume). If the volume is deleted, all data is gone.
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Your packet data lives in `meshcore.db` inside the `meshcore-data` Docker volume. If the volume is deleted, all data is gone.
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**Backup regularly:**
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**Find your database file:**
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```bash
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# Copy the database out of the container
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docker cp meshcore-analyzer:/app/data/meshcore.db ./meshcore-backup-$(date +%Y%m%d).db
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# Show where Docker stores the volume on disk
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docker volume inspect meshcore-data --format '{{ .Mountpoint }}'
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# e.g., /var/lib/docker/volumes/meshcore-data/_data/meshcore.db
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```
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**Back it up:**
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```bash
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# Copy the DB to a backup location
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cp $(docker volume inspect meshcore-data --format '{{ .Mountpoint }}')/meshcore.db ~/meshcore-backup-$(date +%Y%m%d).db
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```
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**Automate with cron (recommended):**
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```bash
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# Add to crontab: daily backup at 3am
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0 3 * * * docker cp meshcore-analyzer:/app/data/meshcore.db /home/youruser/backups/meshcore-$(date +\%Y\%m\%d).db
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0 3 * * * cp $(docker volume inspect meshcore-data --format '\{\{ .Mountpoint \}\}')/meshcore.db /home/youruser/backups/meshcore-$(date +\%Y\%m\%d).db
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```
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Keep at least 7 days of backups. SQLite files are portable — you can copy them to another machine and restore by simply placing the file back.
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**Tip:** If you'd rather mount a local directory instead of a Docker volume (easier to find and back up), replace `-v meshcore-data:/app/data` with `-v ./analyzer-data:/app/data` in the docker run command.
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### ⚠️ Domain DNS must be configured BEFORE starting the container
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