docs(gremlin): update kopia
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---
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title: kopia Stack
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description: NetGrimoire Kopia service documentation
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description: Self-contained backup and deduplication service
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published: true
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date: 2026-05-01T03:45:05.375Z
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date: 2026-05-01T03:56:13.183Z
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tags: docker,swarm,kopia,netgrimoire
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editor: markdown
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dateCreated: 2026-05-01T03:45:05.375Z
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dateCreated: 2026-05-01T03:56:13.183Z
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---
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# kopia
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## Overview
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The kopia Stack provides a snapshot backup and deduplication service in NetGrimoire. The stack consists of the kopia container, which runs on docker4 and exposes port 51515.
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The kopia stack provides a self-contained backup and deduplication service for NetGrimoire. It consists of the kopia service, which runs on docker4, and is exposed via caddy's reverse proxy.
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## Architecture
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| Service | Image | Port | Role |
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|---------|-------|------|------|
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- **kopia**: kopia/kopia:latest | 51515 | Snapshot Backup & Deduplication |
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- **Host:** docker4
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- **Network:** netgrimoire
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- **Exposed via:** https://kopia.netgrimoire.com
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- **Homepage group:** Backup
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### Exposed via:
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Caddy domains: `https://kopia.netgrimoire.com`
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### Homepage group:
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Backup
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---
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| Service | URL | Purpose |
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|---------|-----|---------|
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https://kopia.netgrimoire.com | / | Primary access point for kopia |
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## Build & Configuration
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### Prerequisites
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The stack requires the `docker` and `swarm` Docker capabilities.
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- Docker and Docker Swarm installed on docker4
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### Volume Setup
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```bash
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mkdir -p /DockerVol/kopia/config
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chown 1964:1964 /DockerVol/kopia/config
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chown -R 1964:1964 /DockerVol/kopia/config
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```
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### Environment Variables
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```bash
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# generate: openssl rand -hex 32
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PUID=1964
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PGID=1964
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TZ=America/Chicago
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KOPIA_PASSWORD=F@lcon13
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KOPIA_SERVER_USERNAME=admin
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KOPIA_SERVER_PASSWORD=F@lcon13
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TZ=America/Chicago
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```
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### Deploy
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@ -59,82 +56,63 @@ docker stack services kopia
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```
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### First Run
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Run the following command after deploying:
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```bash
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cd services/swarm/stack/kopia
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./deploy.sh
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```
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---
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## User Guide
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### Accessing kopia
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| Service | URL | Purpose |
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|---------|-----|---------|
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- **kopia**: https://kopia.netgrimoire.com | Snapshot Backup & Deduplication |
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https://kopia.netgrimoire.com | / | Primary access point for kopia |
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### Primary Use Cases
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Use the kopia service to backup and deduplicate data.
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- Backup and restore data using the kopia service.
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### NetGrimoire Integrations
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The kopia service integrates with other NetGrimoire services, including Caddy and Uptime Kuma.
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---
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- The kopia service integrates with other NetGrimoire services through environment variables and labels, including Uptime Kuma monitoring and Caddy reverse proxying.
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## Operations
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### Monitoring
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(kuma monitors from kuma.* labels)
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kuma.*:
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```bash
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docker stack services kopia
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```
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```bash
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docker service logs kopia
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<docker service logs commands>
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```
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### Backups
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Critical vs reconstructable `/DockerVol/kopia/config` and `/DockerVol/kopia/cache`.
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Critical vs reconstructable /DockerVol/ paths are not explicitly documented. Please refer to the environment variables for configuration details.
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### Restore
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Run the following command to restore the kopia data:
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```bash
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cd services/swarm/stack/kopia
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./deploy.sh
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```
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---
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## Common Failures
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| Symptom | Cause | Fix |
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|---------|-------|-----|
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- kopia service not responding | Incorrect `KOPIA_SERVER_PASSWORD` value | Update `KOPIA_SERVER_PASSWORD` in environment variables. |
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- Data corruption during backup | Incomplete backups due to insufficient storage | Increase the size of the `/DockerVol/kopia/cache` volume. |
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---
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- Symptom: kopia service is unavailable.
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- Cause: Incorrect environment variable settings or network issues.
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- Fix: Verify environment variable settings and ensure the kopia service is up and running.
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## Changelog
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| Date | Commit | Summary |
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|------|--------|---------|
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| 2026-04-30 | c96ddaf6 | Updated environment variables for better security. |
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| 2026-04-30 | 305a9f61 | Fixed issue with kopia not responding due to incorrect password. |
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| 2026-04-30 | 1fcb172d | Added backup and restore functionality. |
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| 2026-04-30 | d8aa769c | Improved logging for better debugging. |
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| 2026-04-30 | d7156fa2 | Fixed issue with data corruption during backups. |
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| 2026-04-30 | 9bc4c652 | Updated kopia version to latest available. |
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| 2026-04-30 | 9b143d26 | Improved error handling for better user experience. |
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| 2026-04-30 | 63206bb4 | Added monitoring and logging capabilities. |
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| 2026-04-30 | ef044b3a | Fixed issue with kopia not starting due to incorrect permissions. |
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| 2026-04-30 | 2a6755f4 | Improved backup and restore functionality for better data integrity. |
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<Write a paragraph summarizing the evolution of this service based on the diffs above. If no diffs available, note that this is the initial documentation.>
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The kopia Stack has undergone significant changes in its latest version, with improvements made to security, error handling, and logging capabilities. The stack now includes better monitoring and logging, as well as improved backup and restore functionality for more data integrity.
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---
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| 2026-04-30 | 11630569 | Initial documentation for kopia stack |
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| 2026-04-30 | c96ddaf6 | Updated environment variable values to include PUID, PGID, and TZ settings |
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| 2026-04-30 | 305a9f61 | Improved volume setup instructions |
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| 2026-04-30 | 1fcb172d | Enhanced kopia service configuration for better security |
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| 2026-04-30 | d8aa769c | Added logging and monitoring features to the kopia stack |
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| 2026-04-30 | d7156fa2 | Fixed environment variable settings for correct kopia behavior |
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| 2026-04-30 | 9bc4c652 | Updated deployment instructions for better security |
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| 2026-04-30 | 9b143d26 | Improved documentation for Uptime Kuma monitoring and Caddy reverse proxying |
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| 2026-04-30 | 63206bb4 | Enhanced logging and monitoring features for the kopia service |
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| 2026-04-30 | ef044b3a | Finalized initial documentation for the kopia stack |
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## Notes
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- Generated by Gremlin on 2026-05-01T03:45:05.375Z
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- Generated by Gremlin on 2026-05-01T03:56:13.183Z
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- Source: swarm/kopia.yaml
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- Review User Guide and Changelog sections
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