81 lines
1.8 KiB
Markdown
81 lines
1.8 KiB
Markdown
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# Common Migration Concepts
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Core concepts for migrating from cloud services to self-hosted infrastructure.
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## The Fundamental Shift
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### From Cloud Services
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- Data on vendor servers
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- Monthly subscription costs
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- Limited control over updates
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- Vendor-specific APIs
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### To Self-Hosted
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- Data on your infrastructure
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- One-time setup costs
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- Full control over versions
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- Standard protocols
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## Component Mapping
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| Cloud Service | Self-Hosted Alternative | Protocol |
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|---------------|------------------------|----------|
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| Cloud Storage | MinIO | S3 API |
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| Email Service | Various mail servers | SMTP/IMAP |
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| Identity Provider | Various auth servers | OIDC/SAML |
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## Migration Stages
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1. **Assessment** - What do you have?
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2. **Planning** - How will you move it?
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3. **Testing** - Does it work?
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4. **Execution** - Do the migration
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5. **Validation** - Verify everything works
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## Common Challenges
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### Data Volume
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- Large datasets take time
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- Bandwidth limitations
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- Storage requirements
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### Authentication
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- Passwords can't be exported
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- Need password reset strategy
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- Federation options
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### Dependencies
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- Integrated services
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- API changes
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- Custom workflows
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## Tools Categories
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### File Migration
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- Cloud storage sync tools
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- API-based transfers
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- Bulk download utilities
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### Email Migration
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- IMAP synchronization tools
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- Export/import utilities
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- Archive formats
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### User Migration
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- Directory export tools
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- CSV/LDIF formats
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- API-based extraction
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## Risk Mitigation
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- Always backup first
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- Test with small datasets
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- Keep source data intact
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- Document everything
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- Have rollback plan
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## Next Steps
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- [Microsoft 365 Migration](./microsoft-365.md) - M365 specific guidance
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- [Google Workspace Migration](./google-workspace.md) - Google specific guidance
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- [Knowledge Base Migration](./kb-migration.md) - Document migration
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