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docker-tools/bash/MIGRATION_NOTES.md
2026-03-22 00:54:34 -07:00

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# Migration Notes: docker-stack.sh + docker-update.sh → docker-manager.sh
## Overview
The `docker-stack.sh` and `docker-update.sh` scripts have been combined into a single `docker-manager.sh` script that provides both stack lifecycle management and update functionality.
## Why Combine?
- **Logical grouping**: Stack management and updates are closely related operations
- **Better UX**: Single entry point for all stack operations
- **Reduced duplication**: Shared functions (get_stacks, is_stack_running, etc.)
- **Consistent interface**: All stack operations in one place
## Migration Guide
### Old Commands → New Commands
#### Stack Management
```bash
# Old
docker-stack.sh --list
docker-stack.sh --start myapp
docker-stack.sh --stop myapp
docker-stack.sh --restart myapp
docker-stack.sh --status myapp
docker-stack.sh --logs myapp
# New (same commands work!)
docker-manager.sh --list
docker-manager.sh --start myapp
docker-manager.sh --stop myapp
docker-manager.sh --restart myapp
docker-manager.sh --status myapp
docker-manager.sh --logs myapp
```
#### Update Operations
```bash
# Old
docker-update.sh --check
docker-update.sh --all
docker-update.sh --stack myapp
docker-update.sh --auto
# New (slightly different flags)
docker-manager.sh --check
docker-manager.sh --update-all # was --all
docker-manager.sh --update myapp # was --stack
docker-manager.sh --auto
```
### Flag Changes
| Old (docker-update.sh) | New (docker-manager.sh) | Notes |
|------------------------|-------------------------|-------|
| `--all` | `--update-all` or `-a` | More explicit |
| `--stack STACK` | `--update STACK` or `-u` | More consistent |
### Backward Compatibility
The old scripts (`docker-stack.sh` and `docker-update.sh`) are still available and functional. They can be:
- **Kept**: For backward compatibility with existing scripts
- **Removed**: If you prefer a single unified script
- **Aliased**: Create symlinks or aliases pointing to docker-manager.sh
### Creating Aliases (Optional)
If you want to keep using the old command names:
```bash
# Create symlinks
ln -s docker-manager.sh docker-stack.sh
ln -s docker-manager.sh docker-update.sh
# Or create aliases in your shell config
alias docker-stack='docker-manager.sh'
alias docker-update='docker-manager.sh'
```
### Interactive Mode
The combined script provides a unified interactive menu:
```
Docker Stack Manager
====================
Available stacks:
1) myapp [running]
2) test-stack [stopped]
r) Restart all
s) Stop all
u) Update all # NEW: Update all stacks
c) Check for updates # NEW: Check for updates
0) Exit
```
When selecting a stack, you get both management and update options:
```
Manage: myapp
=============
Status: ● Running
Stack Management:
1) Start
2) Stop
3) Restart
Updates:
4) Update images # NEW: Update this stack
5) Check for updates # NEW: Check this stack
Other:
6) View logs
7) View compose file
0) Back
```
## Benefits
1. **Single Script**: One script to manage instead of two
2. **Unified Interface**: Consistent CLI flags and behavior
3. **Better Organization**: Related operations grouped together
4. **Less Code Duplication**: Shared helper functions
5. **Easier Maintenance**: One script to update instead of two
## Recommendations
- **New scripts**: Use `docker-manager.sh`
- **Existing scripts**: Update to use `docker-manager.sh` when convenient
- **Old scripts**: Can be removed once migration is complete
## Examples
### Combined Operations
```bash
# Check for updates, then update all if available
docker-manager.sh --check
docker-manager.sh --update-all
# Start a stack and update it
docker-manager.sh --start myapp
docker-manager.sh --update myapp
# Check status and updates in one go
docker-manager.sh --list
docker-manager.sh --check
```
### Automation Scripts
```bash
#!/bin/bash
# Combined stack management script
# List all stacks
docker-manager.sh --list --quiet
# Check for updates
if docker-manager.sh --check --quiet | grep -q "update available"; then
# Update all stacks
docker-manager.sh --update-all --yes --quiet
fi
```