Initial commit: Comprehensive Debian bootc documentation

- Complete documentation for all bootc commands and subcommands
- Debian-specific adaptations and workarounds
- Manual installation methods to bypass bootc reliability issues
- Technical guides with Rust source code analysis
- Flowcharts and external command references
- Hidden command documentation (bootc internals, state, etc.)
- Composefs integration analysis
- Base image creation guides (with and without bootc binary)
- Management scripts and automation
- Comprehensive troubleshooting and examples
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# bootc status - External Commands Reference
## Overview
This document provides a comprehensive reference for all external commands, system services, and tools that interact with or are used by the `bootc status` system. Understanding these external dependencies is crucial for troubleshooting, monitoring, and integrating bootc status into larger systems.
## Core System Commands
### 1. bootc Commands
#### bootc status
**Purpose**: Display system status and deployment information
**Usage**: `bootc status [OPTIONS...]`
**External Dependencies**:
- `ostree` - For deployment information
- `systemd` - For service status
- `jq` - For JSON parsing (optional)
```bash
# Show current system status
bootc status
# Show status in JSON format
bootc status --format=json
# Show detailed status with verbose output
bootc status --verbose
# Show only booted deployment status
bootc status --booted
# Show status in YAML format
bootc status --format=yaml
```
#### bootc upgrade
**Purpose**: Update current image to newer version
**Usage**: `bootc upgrade [OPTIONS...]`
**Integration**: Used to check status before/after upgrades
```bash
# Check status before upgrade
bootc status
bootc upgrade --apply
bootc status
# Check for updates
bootc upgrade --check
```
#### bootc switch
**Purpose**: Switch to different container image reference
**Usage**: `bootc switch [OPTIONS...] <TARGET>`
**Integration**: Used to check status before/after switches
```bash
# Check status before switch
bootc status
bootc switch quay.io/myorg/debian-bootc:v2.0
bootc status
```
#### bootc rollback
**Purpose**: Rollback to previous deployment
**Usage**: `bootc rollback [OPTIONS...]`
**Integration**: Used to check status before/after rollbacks
```bash
# Check status before rollback
bootc status
bootc rollback
bootc status
```
### 2. OSTree Commands
#### ostree admin status
**Purpose**: Check OSTree deployment status
**Usage**: `ostree admin status`
**Integration**: Used by `bootc status` for deployment information
```bash
# Check deployment status
ostree admin status
# Check specific deployment
ostree admin status --deployment=deployment-id
# Check with verbose output
ostree admin status --verbose
```
#### ostree admin deploy
**Purpose**: Deploy new OSTree deployment
**Usage**: `ostree admin deploy [OPTIONS...]`
**Integration**: Used internally by bootc for staging updates
```bash
# Deploy new deployment
ostree admin deploy --os=debian-bootc deployment-id
# Deploy with specific options
ostree admin deploy --os=debian-bootc --karg=console=ttyS0 deployment-id
```
#### ostree admin rollback
**Purpose**: Rollback to previous deployment
**Usage**: `ostree admin rollback [OPTIONS...]`
**Integration**: Used internally by bootc for deployment switching
```bash
# Rollback to previous deployment
ostree admin rollback
# Rollback with specific options
ostree admin rollback --deployment=deployment-id
```
#### ostree admin cleanup
**Purpose**: Clean up old deployments and free space
**Usage**: `ostree admin cleanup [OPTIONS...]`
**Integration**: Used for disk space management
```bash
# Clean up old deployments
ostree admin cleanup
# Clean up with specific options
ostree admin cleanup --keep=2
```
#### ostree refs
**Purpose**: List OSTree references
**Usage**: `ostree refs [OPTIONS...]`
**Integration**: Used for reference management
```bash
# List all references
ostree refs
# List references for specific remote
ostree refs --remote=quay.io
# List references with details
ostree refs --list
```
### 3. System Management Commands
#### systemctl
**Purpose**: Control systemd services and units
**Usage**: `systemctl [COMMAND] [UNIT...]`
**Integration**: Used for service management and status checking
```bash
# Check service status
systemctl status bootc-fetch-apply-updates.service
# Start service
systemctl start bootc-fetch-apply-updates.service
# Enable service
systemctl enable bootc-fetch-apply-updates.service
# Restart service
systemctl restart bootc-fetch-apply-updates.service
```
#### reboot
**Purpose**: Reboot the system
**Usage**: `reboot [OPTIONS...]`
**Integration**: Used for system restart after status changes
```bash
# Reboot system
reboot
# Reboot with specific delay
reboot +5
# Reboot with message
reboot "Applying bootc changes"
```
#### shutdown
**Purpose**: Shutdown the system
**Usage**: `shutdown [OPTIONS...]`
**Integration**: Used for controlled shutdown
```bash
# Shutdown system
shutdown -h now
# Shutdown with delay
shutdown -h +5
# Shutdown with message
shutdown -h now "Applying bootc changes"
```
## Data Processing Commands
### 1. JSON Processing
#### jq
**Purpose**: JSON processor and query tool
**Usage**: `jq [OPTIONS...] [FILTER] [FILE...]`
**Integration**: Used for parsing and processing JSON output
```bash
# Parse JSON output
bootc status --format=json | jq '.status.booted'
# Check if system is bootc compatible
bootc status --format=json | jq '.status.booted != null'
# Get current image version
bootc status --format=json | jq -r '.status.booted.image.version // "unknown"'
# Check rollback status
bootc status --format=json | jq '.status.rollbackQueued'
# Get image digest
bootc status --format=json | jq -r '.status.booted.image.imageDigest'
# List all deployments
bootc status --format=json | jq '.status | keys'
```
#### yq
**Purpose**: YAML processor and query tool
**Usage**: `yq [OPTIONS...] [EXPRESSION] [FILE...]`
**Integration**: Used for parsing and processing YAML output
```bash
# Parse YAML output
bootc status --format=yaml | yq '.status.booted'
# Get current image version
bootc status --format=yaml | yq '.status.booted.image.version'
# Check rollback status
bootc status --format=yaml | yq '.status.rollbackQueued'
# Get image digest
bootc status --format=yaml | yq '.status.booted.image.imageDigest'
```
### 2. Text Processing
#### grep
**Purpose**: Search text patterns
**Usage**: `grep [OPTIONS...] PATTERN [FILE...]`
**Integration**: Used for filtering and searching output
```bash
# Search for specific image
bootc status | grep "quay.io/myorg"
# Search for rollback status
bootc status | grep "Rollback Queued"
# Search for version information
bootc status | grep "Version:"
```
#### awk
**Purpose**: Text processing and data extraction
**Usage**: `awk [OPTIONS...] 'PROGRAM' [FILE...]`
**Integration**: Used for extracting specific fields
```bash
# Extract image name
bootc status | awk '/Image:/ {print $2}'
# Extract version
bootc status | awk '/Version:/ {print $2}'
# Extract digest
bootc status | awk '/Digest:/ {print $2}'
```
#### sed
**Purpose**: Stream editor for filtering and transforming text
**Usage**: `sed [OPTIONS...] SCRIPT [FILE...]`
**Integration**: Used for text transformation
```bash
# Remove leading whitespace
bootc status | sed 's/^[[:space:]]*//'
# Extract specific lines
bootc status | sed -n '/Image:/p'
# Replace text
bootc status | sed 's/quay.io/myorg/quay.io/otherorg/g'
```
### 3. Data Formatting
#### column
**Purpose**: Format text into columns
**Usage**: `column [OPTIONS...] [FILE...]`
**Integration**: Used for formatting output
```bash
# Format status output in columns
bootc status | column -t
# Format with specific separator
bootc status | column -s ':' -t
```
#### sort
**Purpose**: Sort lines of text
**Usage**: `sort [OPTIONS...] [FILE...]`
**Integration**: Used for sorting output
```bash
# Sort status output
bootc status | sort
# Sort by specific field
bootc status | sort -k2
```
#### uniq
**Purpose**: Remove duplicate lines
**Usage**: `uniq [OPTIONS...] [FILE...]`
**Integration**: Used for removing duplicates
```bash
# Remove duplicate lines
bootc status | uniq
# Count unique lines
bootc status | uniq -c
```
## Logging and Monitoring Commands
### 1. System Logs
#### journalctl
**Purpose**: Query systemd journal
**Usage**: `journalctl [OPTIONS...]`
**Integration**: Used for service and system log analysis
```bash
# Check bootc service logs
journalctl -u bootc-fetch-apply-updates.service
# Check recent logs
journalctl -n 100
# Check logs since boot
journalctl -b
# Follow logs in real-time
journalctl -f
# Check status-related logs
journalctl -u bootc-fetch-apply-updates.service | grep status
```
#### dmesg
**Purpose**: Display kernel ring buffer
**Usage**: `dmesg [OPTIONS...]`
**Integration**: Used for kernel-level troubleshooting
```bash
# Display kernel messages
dmesg
# Display recent messages
dmesg -T
# Display with timestamps
dmesg -T | tail -50
```
### 2. File Monitoring
#### tail
**Purpose**: Display last lines of files
**Usage**: `tail [OPTIONS...] [FILE...]`
**Integration**: Used for monitoring log files
```bash
# Follow log file
tail -f /var/log/bootc.log
# Display last lines
tail -n 100 /var/log/bootc.log
```
#### head
**Purpose**: Display first lines of files
**Usage**: `head [OPTIONS...] [FILE...]`
**Integration**: Used for viewing file headers
```bash
# Display first lines
head -n 20 /etc/bootc/config.yaml
# Display first bytes
head -c 100 /etc/bootc/config.yaml
```
## Network Commands
### 1. HTTP Clients
#### curl
**Purpose**: HTTP client for registry communication
**Usage**: `curl [OPTIONS...] URL`
**Integration**: Used for registry API calls and authentication
```bash
# Test registry connectivity
curl -I https://quay.io/v2/
# Check registry API
curl -H "Accept: application/vnd.docker.distribution.manifest.v2+json" \
https://quay.io/v2/myorg/debian-bootc/manifests/v2.0
# Authenticate with registry
curl -u username:password https://quay.io/v2/token
```
#### wget
**Purpose**: Download files from web servers
**Usage**: `wget [OPTIONS...] URL`
**Integration**: Alternative to curl for registry communication
```bash
# Download registry manifest
wget -O manifest.json https://quay.io/v2/myorg/debian-bootc/manifests/v2.0
# Download with authentication
wget --user=username --password=password https://quay.io/v2/token
```
### 2. DNS Resolution
#### dig
**Purpose**: DNS lookup tool
**Usage**: `dig [OPTIONS...] DOMAIN`
**Integration**: Used for DNS resolution troubleshooting
```bash
# Resolve registry domain
dig quay.io
# Check specific DNS record
dig quay.io A
# Check DNS server
dig @8.8.8.8 quay.io
```
#### nslookup
**Purpose**: DNS lookup tool
**Usage**: `nslookup [OPTIONS...] DOMAIN`
**Integration**: Alternative to dig for DNS troubleshooting
```bash
# Resolve registry domain
nslookup quay.io
# Check specific DNS record
nslookup -type=A quay.io
```
### 3. Network Troubleshooting
#### ping
**Purpose**: Test network connectivity
**Usage**: `ping [OPTIONS...] HOST`
**Integration**: Used for testing registry connectivity
```bash
# Test connectivity
ping quay.io
# Test with specific count
ping -c 4 quay.io
# Test with specific interface
ping -I eth0 quay.io
```
#### traceroute
**Purpose**: Trace network path
**Usage**: `traceroute [OPTIONS...] HOST`
**Integration**: Used for network path analysis
```bash
# Trace path to registry
traceroute quay.io
# Trace with specific options
traceroute -n quay.io
```
## Container Runtime Commands
### 1. Podman Commands
#### podman pull
**Purpose**: Pull container images from registry
**Usage**: `podman pull [OPTIONS...] IMAGE`
**Integration**: Used by bootc for downloading images
```bash
# Pull image from registry
podman pull quay.io/myorg/debian-bootc:v2.0
# Pull with authentication
podman pull --creds=username:password quay.io/myorg/debian-bootc:v2.0
# Pull specific tag
podman pull quay.io/myorg/debian-bootc:latest
```
#### podman inspect
**Purpose**: Inspect container image metadata
**Usage**: `podman inspect [OPTIONS...] IMAGE`
**Integration**: Used for image validation and metadata extraction
```bash
# Inspect image
podman inspect quay.io/myorg/debian-bootc:v2.0
# Inspect specific configuration
podman inspect --format='{{.Config.Labels}}' quay.io/myorg/debian-bootc:v2.0
# Inspect manifest
podman inspect --format='{{.Manifest}}' quay.io/myorg/debian-bootc:v2.0
```
#### podman images
**Purpose**: List container images
**Usage**: `podman images [OPTIONS...]`
**Integration**: Used for image management
```bash
# List all images
podman images
# List images with specific format
podman images --format "table {{.Repository}} {{.Tag}} {{.ID}}"
# List images with filters
podman images --filter "reference=quay.io/myorg/*"
```
### 2. Docker Commands (Alternative)
#### docker
**Purpose**: Alternative container runtime
**Usage**: `docker [COMMAND] [OPTIONS...]`
**Integration**: Alternative to podman
```bash
# List containers
docker ps -a
# List images
docker images
# Inspect image
docker inspect quay.io/myorg/debian-bootc:v2.0
```
## File System Commands
### 1. File Operations
#### cat
**Purpose**: Display file contents
**Usage**: `cat [OPTIONS...] [FILE...]`
**Integration**: Used for displaying configuration files
```bash
# Display file contents
cat /etc/bootc/config.yaml
# Display with line numbers
cat -n /etc/bootc/config.yaml
# Display non-printing characters
cat -v /etc/bootc/config.yaml
```
#### cp
**Purpose**: Copy files
**Usage**: `cp [OPTIONS...] SOURCE DEST`
**Integration**: Used for backing up configuration files
```bash
# Copy file
cp /etc/bootc/config.yaml /etc/bootc/config.yaml.backup
# Copy with preserve attributes
cp -p /etc/bootc/config.yaml /etc/bootc/config.yaml.backup
# Copy recursively
cp -r /etc/bootc/ /etc/bootc.backup/
```
#### mv
**Purpose**: Move or rename files
**Usage**: `mv [OPTIONS...] SOURCE DEST`
**Integration**: Used for renaming configuration files
```bash
# Rename file
mv /etc/bootc/config.yaml /etc/bootc/config.yaml.old
# Move file
mv /etc/bootc/config.yaml /backup/config.yaml
```
#### rm
**Purpose**: Remove files
**Usage**: `rm [OPTIONS...] FILE...`
**Integration**: Used for cleaning up temporary files
```bash
# Remove file
rm /etc/bootc/config.yaml
# Remove with confirmation
rm -i /etc/bootc/config.yaml
# Remove recursively
rm -r /etc/bootc/
```
### 2. Directory Operations
#### mkdir
**Purpose**: Create directories
**Usage**: `mkdir [OPTIONS...] DIRECTORY...`
**Integration**: Used for creating configuration directories
```bash
# Create directory
mkdir -p /etc/bootc
# Create with specific permissions
mkdir -m 755 /etc/bootc
```
#### ls
**Purpose**: List directory contents
**Usage**: `ls [OPTIONS...] [FILE...]`
**Integration**: Used for listing configuration files
```bash
# List files
ls -la /etc/bootc/
# List with specific format
ls -l --time-style=full-iso /etc/bootc/
```
#### find
**Purpose**: Search for files
**Usage**: `find [PATH...] [EXPRESSION...]`
**Integration**: Used for finding configuration files
```bash
# Find configuration files
find /etc -name "*.yaml" -type f
# Find files modified recently
find /etc/bootc -mtime -1 -type f
```
## Performance Monitoring Commands
### 1. System Resources
#### top
**Purpose**: Display running processes
**Usage**: `top [OPTIONS...]`
**Integration**: Used for process monitoring
```bash
# Display processes
top
# Display specific process
top -p $(pgrep bootc)
```
#### htop
**Purpose**: Interactive process viewer
**Usage**: `htop [OPTIONS...]`
**Integration**: Used for system resource monitoring
```bash
# Start htop
htop
# Monitor specific process
htop -p $(pgrep bootc)
```
#### free
**Purpose**: Display memory usage
**Usage**: `free [OPTIONS...]`
**Integration**: Used for memory monitoring
```bash
# Display memory usage
free -h
# Display in specific format
free -m
```
### 2. Disk Usage
#### df
**Purpose**: Display filesystem disk space usage
**Usage**: `df [OPTIONS...] [FILE...]`
**Integration**: Used for disk space monitoring
```bash
# Check disk usage
df -h
# Check specific filesystem
df -h /sysroot
# Check inode usage
df -i
```
#### du
**Purpose**: Display directory space usage
**Usage**: `du [OPTIONS...] [FILE...]`
**Integration**: Used for directory space analysis
```bash
# Check directory usage
du -sh /etc/bootc
# Check OSTree usage
du -sh /sysroot/ostree
```
## System Information Commands
### 1. System Information
#### uname
**Purpose**: Display system information
**Usage**: `uname [OPTIONS...]`
**Integration**: Used for system identification
```bash
# Display system information
uname -a
# Display kernel version
uname -r
# Display architecture
uname -m
```
#### hostname
**Purpose**: Display or set hostname
**Usage**: `hostname [OPTIONS...] [NAME]`
**Integration**: Used for system identification
```bash
# Display hostname
hostname
# Set hostname
hostname newhostname
```
#### whoami
**Purpose**: Display current user
**Usage**: `whoami [OPTIONS...]`
**Integration**: Used for user identification
```bash
# Display current user
whoami
# Display user ID
id
```
### 2. Hardware Information
#### lscpu
**Purpose**: Display CPU information
**Usage**: `lscpu [OPTIONS...]`
**Integration**: Used for system resource analysis
```bash
# Display CPU information
lscpu
# Display in specific format
lscpu --extended
```
#### lsblk
**Purpose**: List block devices
**Usage**: `lsblk [OPTIONS...]`
**Integration**: Used for storage device identification
```bash
# List all block devices
lsblk
# List with filesystem information
lsblk -f
# List specific device
lsblk /dev/sda
```
## Automation and Scripting Commands
### 1. Shell Scripting
#### bash
**Purpose**: Bourne Again Shell
**Usage**: `bash [OPTIONS...] [FILE]`
**Integration**: Used for automation scripts
```bash
#!/bin/bash
# Check if system is bootc compatible
if bootc status --format=json | jq -e '.status.booted != null' > /dev/null; then
echo "System is bootc compatible"
else
echo "System is not bootc compatible"
fi
```
#### sh
**Purpose**: POSIX shell
**Usage**: `sh [OPTIONS...] [FILE]`
**Integration**: Used for portable scripts
```bash
#!/bin/sh
# Check rollback status
if bootc status --format=json | jq -r '.status.rollbackQueued' | grep -q true; then
echo "Rollback is queued"
fi
```
### 2. Process Control
#### ps
**Purpose**: Display running processes
**Usage**: `ps [OPTIONS...]`
**Integration**: Used for process monitoring
```bash
# Display all processes
ps aux
# Display specific process
ps aux | grep bootc
# Display process tree
ps auxf
```
#### pgrep
**Purpose**: Find processes by name
**Usage**: `pgrep [OPTIONS...] PATTERN`
**Integration**: Used for process identification
```bash
# Find bootc processes
pgrep bootc
# Find with full command line
pgrep -f bootc
# Find with specific user
pgrep -u root bootc
```
#### pkill
**Purpose**: Kill processes by name
**Usage**: `pkill [OPTIONS...] PATTERN`
**Integration**: Used for process termination
```bash
# Kill bootc processes
pkill bootc
# Kill with signal
pkill -9 bootc
# Kill with specific user
pkill -u root bootc
```
## Backup and Recovery Commands
### 1. Archive Commands
#### tar
**Purpose**: Archive files
**Usage**: `tar [OPTIONS...] [FILE...]`
**Integration**: Used for backup creation
```bash
# Create backup
tar -czf backup.tar.gz /etc/bootc
# Extract backup
tar -xzf backup.tar.gz
# List archive contents
tar -tzf backup.tar.gz
```
#### rsync
**Purpose**: Synchronize files
**Usage**: `rsync [OPTIONS...] SRC DEST`
**Integration**: Used for backup synchronization
```bash
# Synchronize files
rsync -av /etc/bootc/ /backup/bootc/
# Synchronize with remote
rsync -av /etc/bootc/ user@host:/backup/bootc/
```
### 2. Version Control
#### git
**Purpose**: Version control system
**Usage**: `git [COMMAND] [OPTIONS...]`
**Integration**: Used for configuration version control
```bash
# Initialize repository
git init
# Add files
git add /etc/bootc/config.yaml
# Commit changes
git commit -m "Update configuration"
# Check status
git status
```
This comprehensive external commands reference provides all the tools and commands needed to effectively manage, troubleshoot, and integrate with the bootc status system.

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# bootc status - Process Flowchart
## Overview
This document provides a visual representation of the `bootc status` process flow, showing the decision points, operations, and data structures involved in displaying system status information.
## Main Process Flow
```
┌─────────────────────────────────────────────────────────────────┐
│ bootc status │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Validate Format Version │
│ │
│ • Check format version (0, 1 supported) │
│ • Error if unsupported version │
│ • Default to version 1 │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Check OSTree Boot Status │
│ │
│ ┌─────────────────────────────────────────────────────────────┐ │
│ │ ostree_booted()? │ │
│ └─────────────────────────────────────────────────────────────┘ │
│ │ │
│ ▼ │
│ ┌─────────────────┐ ┌─────────────────────────────────────┐ │
│ │ No │ │ Yes │ │
│ │ │ │ │ │
│ │ ┌─────────────┐│ │ ┌─────────────────────────────────┐│ │
│ │ │ Return ││ │ │ Get System Status ││ │
│ │ │ Default ││ │ │ ││ │
│ │ │ Empty ││ │ │ • Get storage interface ││ │
│ │ │ Status ││ │ │ • Get OSTree repository ││ │
│ │ └─────────────┘│ │ │ • Get booted deployment ││ │
│ │ │ │ │ • Call get_status() ││ │
│ │ ┌─────────────┐│ │ └─────────────────────────────────┘│ │
│ │ │ Skip to ││ │ │ │
│ │ │ Output ││ │ │ │
│ │ └─────────────┘│ │ │ │
│ └─────────────────┘ └─────────────────────────────────────┘ │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Filter to Booted Deployment │
│ │
│ ┌─────────────────────────────────────────────────────────────┐ │
│ │ --booted specified? │ │
│ └─────────────────────────────────────────────────────────────┘ │
│ │ │
│ ▼ │
│ ┌─────────────────┐ ┌─────────────────────────────────────┐ │
│ │ Yes │ │ No │ │
│ │ │ │ │ │
│ │ ┌─────────────┐│ │ ┌─────────────────────────────────┐│ │
│ │ │ Filter to ││ │ │ Keep All Deployments ││ │
│ │ │ Booted ││ │ │ ││ │
│ │ │ Slot Only ││ │ │ • Include all deployment info ││ │
│ │ │ ││ │ │ • Show staged, booted, rollback││ │
│ │ └─────────────┘│ │ │ ││ │
│ └─────────────────┘ └─────────────────────────────────────┘ │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Determine Output Format │
│ │
│ ┌─────────────────────────────────────────────────────────────┐ │
│ │ Format specified? │ │
│ └─────────────────────────────────────────────────────────────┘ │
│ │ │
│ ▼ │
│ ┌─────────────────┐ ┌─────────────────────────────────────┐ │
│ │ Yes │ │ No │ │
│ │ │ │ │ │
│ │ ┌─────────────┐│ │ ┌─────────────────────────────────┐│ │
│ │ │ Use ││ │ │ Auto-detect Format ││ │
│ │ │ Specified ││ │ │ ││ │
│ │ │ Format ││ │ │ • Check --json flag ││ │
│ │ │ • JSON ││ │ │ • Check if terminal ││ │
│ │ │ • YAML ││ │ │ • Default to YAML ││ │
│ │ │ • Human ││ │ │ ││ │
│ │ └─────────────┘│ │ └─────────────────────────────────┘│ │
│ └─────────────────┘ └─────────────────────────────────────┘ │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Output in Requested Format │
│ │
│ ┌─────────────────────────────────────────────────────────────┐ │
│ │ Format Type? │ │
│ └─────────────────────────────────────────────────────────────┘ │
│ │ │
│ ▼ │
│ ┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐ │
│ │ JSON │ │ YAML │ │ Human Readable│ │
│ │ │ │ │ │ │ │
│ │ ┌─────────────┐│ │ ┌─────────────┐│ │ ┌─────────────┐│ │
│ │ │ Serialize ││ │ │ Serialize ││ │ │ Format for ││ │
│ │ │ to JSON ││ │ │ to YAML ││ │ │ human ││ │
│ │ │ • Canonical ││ │ │ • Standard ││ │ │ reading ││ │
│ │ │ format ││ │ │ format ││ │ │ • Include ││ │
│ │ │ • Machine ││ │ │ • Machine ││ │ │ verbose ││ │
│ │ │ readable ││ │ │ readable ││ │ │ info if ││ │
│ │ └─────────────┘│ │ └─────────────┘│ │ │ requested ││ │
│ └─────────────────┘ └─────────────────┘ │ └─────────────┘│ │
│ └─────────────────┘ │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Success │
│ │
│ • Status information displayed successfully │
│ • Format appropriate for use case │
│ • All deployment information included │
└─────────────────────────────────────────────────────────────────┘
```
## Core Status Gathering Flow
```
┌─────────────────────────────────────────────────────────────────┐
│ Core Status Gathering │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Get Stateroot Name │
│ │
│ • Extract stateroot from booted deployment │
│ • Use for filtering related deployments │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Partition Deployments │
│ │
│ • Get all deployments from sysroot │
│ • Separate related deployments from others │
│ • Filter by stateroot name │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Find Staged Deployment │
│ │
│ • Search for deployment marked as staged │
│ • Remove from related deployments list │
│ • Store for later processing │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Filter Booted Deployment │
│ │
│ • Remove booted deployment from related list │
│ • Keep for separate processing │
│ • Ensure no duplicates │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Get Rollback Deployment │
│ │
│ • Pop first deployment from related list │
│ • This becomes rollback deployment │
│ • Remaining deployments become "other" │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Determine Rollback Status │
│ │
│ • Compare rollback and booted deployment indices │
│ • Set rollback_queued flag │
│ • Determine boot order state │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Create Boot Entries │
│ │
│ • Process staged deployment │
│ • Process booted deployment │
│ • Process rollback deployment │
│ • Process other deployments │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Extract Image Information │
│ │
│ • Parse OCI image configuration │
│ • Extract image metadata │
│ • Create ImageStatus structures │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Create Host Specification │
│ │
│ • Determine image reference │
│ • Set boot order │
│ • Create HostSpec structure │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Determine Host Type │
│ │
│ • Check if booted deployment has image │
│ • Set HostType::BootcHost if container-based │
│ • Set to None if not container-based │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Create Host Status │
│ │
│ • Combine all deployment information │
│ • Set rollback_queued flag │
│ • Set host type │
│ • Create HostStatus structure │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Success │
│ │
│ • Complete status information gathered │
│ • All deployments processed │
│ • Image information extracted │
│ • Ready for output formatting │
└─────────────────────────────────────────────────────────────────┘
```
## Boot Entry Creation Flow
```
┌─────────────────────────────────────────────────────────────────┐
│ Boot Entry Creation │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Extract Deployment Info │
│ │
│ • Get deployment checksum │
│ • Get deployment osname │
│ • Create DeploymentInfo structure │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Check for Image Reference │
│ │
│ • Parse deployment origin │
│ • Look for refspec in origin │
│ • Parse OSTree image reference │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Query Image Commit │
│ │
│ • Query OSTree repository for image commit │
│ • Get cached update information │
│ • Extract image configuration │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Create Image Status │
│ │
│ • Parse OCI image configuration │
│ • Extract labels and metadata │
│ • Create ImageStatus structure │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Create Boot Entry │
│ │
│ • Combine deployment info and image status │
│ • Create BootEntry structure │
│ • Return complete boot entry │
└─────────────────────────────────────────────────────────────────┘
```
## Image Status Creation Flow
```
┌─────────────────────────────────────────────────────────────────┐
│ Image Status Creation │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Extract Image Labels │
│ │
│ • Get labels from image configuration │
│ • Look for version information │
│ • Look for timestamp information │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Parse Timestamp │
│ │
│ • Look for ANNOTATION_CREATED label │
│ • Parse RFC3339 timestamp │
│ • Convert to UTC timezone │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Extract Architecture │
│ │
│ • Get architecture from image configuration │
│ • Default to "unknown" if not found │
│ • Convert to string │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Create Image Status │
│ │
│ • Combine image reference and metadata │
│ • Set version, timestamp, digest, architecture │
│ • Create ImageStatus structure │
└─────────────────────────────────────────────────────────────────┘
```
## Format Selection Flow
```
┌─────────────────────────────────────────────────────────────────┐
│ Format Selection │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Check Format Option │
│ │
│ ┌─────────────────────────────────────────────────────────────┐ │
│ │ --format specified? │ │
│ └─────────────────────────────────────────────────────────────┘ │
│ │ │
│ ▼ │
│ ┌─────────────────┐ ┌─────────────────────────────────────┐ │
│ │ Yes │ │ No │ │
│ │ │ │ │ │
│ │ ┌─────────────┐│ │ ┌─────────────────────────────────┐│ │
│ │ │ Use ││ │ │ Check Legacy Options ││ │
│ │ │ Specified ││ │ │ ││ │
│ │ │ Format ││ │ │ • Check --json flag ││ │
│ │ │ • JSON ││ │ │ • Check if terminal ││ │
│ │ │ • YAML ││ │ │ • Default to YAML ││ │
│ │ │ • Human ││ │ │ ││ │
│ │ └─────────────┘│ │ └─────────────────────────────────┘│ │
│ └─────────────────┘ └─────────────────────────────────────┘ │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Check Legacy Options │
│ │
│ ┌─────────────────────────────────────────────────────────────┐ │
│ │ --json specified? │ │
│ └─────────────────────────────────────────────────────────────┘ │
│ │ │
│ ▼ │
│ ┌─────────────────┐ ┌─────────────────────────────────────┐ │
│ │ Yes │ │ No │ │
│ │ │ │ │ │
│ │ ┌─────────────┐│ │ ┌─────────────────────────────────┐│ │
│ │ │ Use JSON ││ │ │ Check Terminal ││ │
│ │ │ Format ││ │ │ ││ │
│ │ └─────────────┘│ │ │ • Check if stdout is terminal ││ │
│ │ │ │ │ • Use Human Readable if yes ││ │
│ │ │ │ │ • Use YAML if no ││ │
│ │ │ │ │ ││ │
│ │ │ │ └─────────────────────────────────┘│ │
│ └─────────────────┘ └─────────────────────────────────────┘ │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Check Terminal Status │
│ │
│ ┌─────────────────────────────────────────────────────────────┐ │
│ │ stdout.is_terminal()? │ │
│ └─────────────────────────────────────────────────────────────┘ │
│ │ │
│ ▼ │
│ ┌─────────────────┐ ┌─────────────────────────────────────┐ │
│ │ Yes │ │ No │ │
│ │ │ │ │ │
│ │ ┌─────────────┐│ │ ┌─────────────────────────────────┐│ │
│ │ │ Use Human ││ │ │ Use YAML Format ││ │
│ │ │ Readable ││ │ │ ││ │
│ │ │ Format ││ │ │ • Machine readable ││ │
│ │ │ ││ │ │ • Programmatic parsing ││ │
│ │ │ • Interactive││ │ │ • Standard format ││ │
│ │ │ use ││ │ │ ││ │
│ │ │ • Human ││ │ │ ││ │
│ │ │ friendly ││ │ │ ││ │
│ │ └─────────────┘│ │ └─────────────────────────────────┘│ │
│ └─────────────────┘ └─────────────────────────────────────┘ │
└─────────────────────────────────────────────────────────────────┘
```
## Error Handling Flow
```
┌─────────────────────────────────────────────────────────────────┐
│ Error Detection │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Error Classification │
│ │
│ ┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐ │
│ │ Format │ │ System │ │ Deployment │ │
│ │ Errors │ │ Errors │ │ Errors │ │
│ │ │ │ │ │ │ │
│ │ • Unsupported │ │ • Not OSTree │ │ • No deployments│ │
│ │ format │ │ booted │ │ found │ │
│ │ version │ │ • Storage │ │ • Invalid │ │
│ │ • Invalid │ │ access │ │ deployment │ │
│ │ format │ │ failed │ │ structure │ │
│ │ • JSON/YAML │ │ • OSTree │ │ • Image │ │
│ │ parsing │ │ repository │ │ parsing │ │
│ │ failed │ │ error │ │ failed │ │
│ └─────────────────┘ └─────────────────┘ └─────────────────┘ │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────┐
│ Error Response │
│ │
│ • Display error message │
│ • Provide context information │
│ • Suggest remediation steps │
│ • Return appropriate exit code │
│ • Clean up any partial state │
└─────────────────────────────────────────────────────────────────┘
```
This flowchart provides a comprehensive visual representation of the bootc status process, showing all decision points, operations, and data structures involved in displaying system status information.

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@ -0,0 +1,832 @@
# bootc status - Technical Guide
## Overview
`bootc status` is a command for displaying the current state of a bootc-managed system. It provides comprehensive information about deployments, boot order, image references, and system configuration. The command supports multiple output formats and can be used both interactively and programmatically.
## Purpose
The status command serves several critical functions:
1. **System State Display**: Show current bootc system state
2. **Deployment Information**: Display staged, booted, and rollback deployments
3. **Image References**: Show container image information and metadata
4. **Boot Order Status**: Indicate current boot order configuration
5. **Programmatic Access**: Provide structured data for automation
6. **Troubleshooting**: Help diagnose system issues
## Command Syntax
```bash
bootc status [OPTIONS...]
```
### Basic Usage
```bash
# Show current system status
bootc status
# Show status in JSON format
bootc status --format=json
# Show detailed status with verbose output
bootc status --verbose
# Show only booted deployment status
bootc status --booted
# Show status in YAML format
bootc status --format=yaml
```
## Command Options
| Option | Description | Default | Required |
|--------|-------------|---------|----------|
| `--format` | Output format (humanreadable, yaml, json) | `auto` | No |
| `--format-version` | Format version (0, 1) | `1` | No |
| `--booted` | Only display booted deployment | `false` | No |
| `--verbose`, `-v` | Include additional fields | `false` | No |
| `--json` | Output in JSON format (deprecated) | `false` | No |
### Output Formats
| Format | Description | Use Case |
|--------|-------------|----------|
| `humanreadable` | Human-friendly text output | Interactive use |
| `yaml` | YAML-formatted output | Programmatic parsing |
| `json` | JSON-formatted output | Programmatic parsing |
## Architecture Overview
### 1. Status Command Structure
```rust
pub(crate) struct StatusOpts {
pub(crate) json: bool, // JSON output (deprecated)
pub(crate) format: Option<OutputFormat>, // Output format
pub(crate) format_version: Option<u32>, // Format version
pub(crate) booted: bool, // Only booted deployment
pub(crate) verbose: bool, // Verbose output
}
```
### 2. Status Process Flow
```rust
pub(crate) async fn status(opts: StatusOpts) -> Result<()> {
// 1. Validate format version
match opts.format_version.unwrap_or_default() {
0 | 1 => {} // Both 0 and 1 mean "v1"
o => anyhow::bail!("Unsupported format version: {o}"),
};
// 2. Get system status
let mut host = if !ostree_booted()? {
Default::default()
} else {
let sysroot = super::cli::get_storage().await?;
let ostree = sysroot.get_ostree()?;
let booted_deployment = ostree.booted_deployment();
let (_deployments, host) = get_status(&ostree, booted_deployment.as_ref())?;
host
};
// 3. Filter to booted deployment if requested
if opts.booted {
host.filter_to_slot(Slot::Booted);
}
// 4. Determine output format
let out = std::io::stdout();
let mut out = out.lock();
let legacy_opt = if opts.json {
OutputFormat::Json
} else if std::io::stdout().is_terminal() {
OutputFormat::HumanReadable
} else {
OutputFormat::Yaml
};
let format = opts.format.unwrap_or(legacy_opt);
// 5. Output in requested format
match format {
OutputFormat::Json => host.to_canon_json_writer(&mut out),
OutputFormat::Yaml => serde_yaml::to_writer(&mut out, &host),
OutputFormat::HumanReadable => {
human_readable_output(&mut out, &host, opts.verbose)
}
}
}
```
### 3. Core Status Gathering
```rust
pub(crate) fn get_status(
sysroot: &SysrootLock,
booted_deployment: Option<&ostree::Deployment>,
) -> Result<(Deployments, Host)> {
// 1. Get stateroot name
let stateroot = booted_deployment.as_ref().map(|d| d.osname());
// 2. Partition deployments
let (mut related_deployments, other_deployments) = sysroot
.deployments()
.into_iter()
.partition::<VecDeque<_>, _>(|d| Some(d.osname()) == stateroot);
// 3. Find staged deployment
let staged = related_deployments
.iter()
.position(|d| d.is_staged())
.map(|i| related_deployments.remove(i).unwrap());
// 4. Filter out booted deployment
if let Some(booted) = booted_deployment.as_ref() {
related_deployments.retain(|f| !f.equal(booted));
}
// 5. Get rollback deployment
let rollback = related_deployments.pop_front();
// 6. Determine rollback queued status
let rollback_queued = match (booted_deployment.as_ref(), rollback.as_ref()) {
(Some(booted), Some(rollback)) => rollback.index() < booted.index(),
_ => false,
};
// 7. Determine boot order
let boot_order = if rollback_queued {
BootOrder::Rollback
} else {
BootOrder::Default
};
// 8. Create deployments structure
let deployments = Deployments {
staged,
rollback,
other: related_deployments,
};
// 9. Create boot entries
let staged = deployments.staged
.as_ref()
.map(|d| boot_entry_from_deployment(sysroot, d))
.transpose()
.context("Staged deployment")?;
let booted = booted_deployment
.as_ref()
.map(|d| boot_entry_from_deployment(sysroot, d))
.transpose()
.context("Booted deployment")?;
let rollback = deployments.rollback
.as_ref()
.map(|d| boot_entry_from_deployment(sysroot, d))
.transpose()
.context("Rollback deployment")?;
// 10. Create host specification
let spec = staged
.as_ref()
.or(booted.as_ref())
.and_then(|entry| entry.image.as_ref())
.map(|img| HostSpec {
image: Some(img.image.clone()),
boot_order,
})
.unwrap_or_default();
// 11. Determine host type
let ty = if booted
.as_ref()
.map(|b| b.image.is_some())
.unwrap_or_default()
{
Some(HostType::BootcHost)
} else {
None
};
// 12. Create host status
let mut host = Host::new(spec);
host.status = HostStatus {
staged,
booted,
rollback,
other_deployments: other_deployments,
rollback_queued,
ty,
};
Ok((deployments, host))
}
```
## Data Structures
### 1. Host Structure
```rust
pub struct Host {
pub resource: k8sapitypes::Resource,
pub spec: HostSpec,
pub status: HostStatus,
}
```
### 2. Host Specification
```rust
pub struct HostSpec {
pub image: Option<ImageReference>,
pub boot_order: BootOrder,
}
```
### 3. Host Status
```rust
pub struct HostStatus {
pub staged: Option<BootEntry>,
pub booted: Option<BootEntry>,
pub rollback: Option<BootEntry>,
pub other_deployments: Vec<BootEntry>,
pub rollback_queued: bool,
pub ty: Option<HostType>,
}
```
### 4. Boot Entry
```rust
pub struct BootEntry {
pub deployment: DeploymentInfo,
pub image: Option<ImageStatus>,
}
```
### 5. Image Status
```rust
pub struct ImageStatus {
pub image: ImageReference,
pub version: Option<String>,
pub timestamp: Option<chrono::DateTime<chrono::Utc>>,
pub image_digest: String,
pub architecture: String,
}
```
## Output Formats
### 1. Human Readable Format
**Default for terminal output**
```
System is deployed via bootc.
Image: quay.io/myorg/debian-bootc:v2.0
Version: 2.0.0
Digest: sha256:abc123def456...
Architecture: x86_64
Boot Order: Default
Rollback Queued: false
Deployments:
Staged: None
Booted: quay.io/myorg/debian-bootc:v2.0
Rollback: quay.io/myorg/debian-bootc:v1.0
```
### 2. YAML Format
**Default for non-terminal output**
```yaml
apiVersion: v1
kind: Host
metadata:
name: localhost
spec:
image:
image: quay.io/myorg/debian-bootc:v2.0
transport: registry
bootOrder: Default
status:
staged: null
booted:
deployment:
id: abc123def456...
osname: debian-bootc
checksum: def456ghi789...
image:
image:
image: quay.io/myorg/debian-bootc:v2.0
transport: registry
version: "2.0.0"
timestamp: "2024-01-15T10:30:00Z"
imageDigest: sha256:abc123def456...
architecture: x86_64
rollback:
deployment:
id: def456ghi789...
osname: debian-bootc
checksum: ghi789jkl012...
image:
image:
image: quay.io/myorg/debian-bootc:v1.0
transport: registry
version: "1.0.0"
timestamp: "2024-01-10T15:45:00Z"
imageDigest: sha256:def456ghi789...
architecture: x86_64
otherDeployments: []
rollbackQueued: false
ty: BootcHost
```
### 3. JSON Format
**For programmatic access**
```json
{
"apiVersion": "v1",
"kind": "Host",
"metadata": {
"name": "localhost"
},
"spec": {
"image": {
"image": "quay.io/myorg/debian-bootc:v2.0",
"transport": "registry"
},
"bootOrder": "Default"
},
"status": {
"staged": null,
"booted": {
"deployment": {
"id": "abc123def456...",
"osname": "debian-bootc",
"checksum": "def456ghi789..."
},
"image": {
"image": {
"image": "quay.io/myorg/debian-bootc:v2.0",
"transport": "registry"
},
"version": "2.0.0",
"timestamp": "2024-01-15T10:30:00Z",
"imageDigest": "sha256:abc123def456...",
"architecture": "x86_64"
}
},
"rollback": {
"deployment": {
"id": "def456ghi789...",
"osname": "debian-bootc",
"checksum": "ghi789jkl012..."
},
"image": {
"image": {
"image": "quay.io/myorg/debian-bootc:v1.0",
"transport": "registry"
},
"version": "1.0.0",
"timestamp": "2024-01-10T15:45:00Z",
"imageDigest": "sha256:def456ghi789...",
"architecture": "x86_64"
}
},
"otherDeployments": [],
"rollbackQueued": false,
"ty": "BootcHost"
}
}
```
## Deployment Detection
### 1. OSTree Boot Detection
```rust
if !ostree_booted()? {
Default::default()
} else {
// Get system status
}
```
**Purpose**: Check if system is booted via OSTree
**Process**: Verify OSTree boot environment
### 2. Deployment Partitioning
```rust
let (mut related_deployments, other_deployments) = sysroot
.deployments()
.into_iter()
.partition::<VecDeque<_>, _>(|d| Some(d.osname()) == stateroot);
```
**Purpose**: Separate related deployments from others
**Process**: Filter deployments by stateroot name
### 3. Staged Deployment Detection
```rust
let staged = related_deployments
.iter()
.position(|d| d.is_staged())
.map(|i| related_deployments.remove(i).unwrap());
```
**Purpose**: Find staged deployment for next boot
**Process**: Look for deployment marked as staged
### 4. Rollback Detection
```rust
let rollback = related_deployments.pop_front();
let rollback_queued = match (booted_deployment.as_ref(), rollback.as_ref()) {
(Some(booted), Some(rollback)) => rollback.index() < booted.index(),
_ => false,
};
```
**Purpose**: Determine rollback deployment and queued status
**Process**: Check deployment order and indices
## Boot Order Management
### 1. Boot Order States
```rust
let boot_order = if rollback_queued {
BootOrder::Rollback
} else {
BootOrder::Default
};
```
**States**:
- **Default**: Current deployment first, rollback second
- **Rollback**: Rollback deployment first, current second
### 2. Rollback Queued Detection
```rust
let rollback_queued = match (booted_deployment.as_ref(), rollback.as_ref()) {
(Some(booted), Some(rollback)) => rollback.index() < booted.index(),
_ => false,
};
```
**Purpose**: Determine if rollback is queued for next boot
**Process**: Compare deployment indices
## Image Information Extraction
### 1. Image Status Creation
```rust
fn create_imagestatus(
image: ImageReference,
manifest_digest: &Digest,
config: &ImageConfiguration,
) -> ImageStatus {
let labels = labels_of_config(config);
let timestamp = labels
.and_then(|l| {
l.get(oci_spec::image::ANNOTATION_CREATED)
.map(|s| s.as_str())
})
.and_then(|s| chrono::DateTime::parse_from_rfc3339(s).ok())
.map(|dt| dt.with_timezone(&chrono::Utc));
let architecture = config.architecture().unwrap_or("unknown").to_string();
ImageStatus {
image,
version: labels.and_then(|l| l.get("version").cloned()),
timestamp,
image_digest: manifest_digest.to_string(),
architecture,
}
}
```
**Purpose**: Extract image metadata and configuration
**Process**: Parse OCI image configuration and labels
### 2. Boot Entry Creation
```rust
fn boot_entry_from_deployment(
sysroot: &SysrootLock,
deployment: &ostree::Deployment,
) -> Result<BootEntry> {
let deployment_info = DeploymentInfo {
id: deployment.csum().to_string(),
osname: deployment.osname().to_string(),
checksum: deployment.csum().to_string(),
};
let image = if let Ok(origin) = deployment.origin() {
if let Some(refspec) = origin.optional_string("origin", "refspec")? {
if let Ok(ostree_ref) = ostree::parse_refspec(&refspec) {
if let Ok(image_ref) = ostree_container::OstreeImageReference::try_from(ostree_ref) {
let image_ref = ImageReference::from(image_ref);
let repo = &sysroot.repo();
let imgstate = ostree_container::store::query_image_commit(repo, &deployment.csum())?;
let cached = imgstate.cached_update
.map(|cached| create_imagestatus(image_ref, &cached.manifest_digest, &cached.config));
cached
} else {
None
}
} else {
None
}
} else {
None
}
} else {
None
};
Ok(BootEntry {
deployment: deployment_info,
image,
})
}
```
**Purpose**: Create boot entry from OSTree deployment
**Process**: Extract deployment info and image metadata
## Format Detection
### 1. Automatic Format Selection
```rust
let legacy_opt = if opts.json {
OutputFormat::Json
} else if std::io::stdout().is_terminal() {
OutputFormat::HumanReadable
} else {
OutputFormat::Yaml
};
```
**Logic**:
- **JSON**: If `--json` flag specified
- **Human Readable**: If output is a terminal
- **YAML**: If output is not a terminal
### 2. Format Version Support
```rust
match opts.format_version.unwrap_or_default() {
0 | 1 => {} // Both 0 and 1 mean "v1"
o => anyhow::bail!("Unsupported format version: {o}"),
};
```
**Purpose**: Support multiple format versions
**Current**: Version 1 (exposed as both 0 and 1)
## Filtering Options
### 1. Booted Deployment Filter
```rust
if opts.booted {
host.filter_to_slot(Slot::Booted);
}
```
**Purpose**: Show only booted deployment information
**Use Case**: Focus on current deployment
### 2. Verbose Output
```rust
human_readable_output(&mut out, &host, opts.verbose)
```
**Purpose**: Include additional fields in human readable format
**Use Case**: Detailed troubleshooting information
## Error Handling
### 1. OSTree Boot Detection Errors
```rust
if !ostree_booted()? {
Default::default()
}
```
**Error**: System not booted via OSTree
**Response**: Return default empty status
### 2. Deployment Access Errors
```rust
let (_deployments, host) = get_status(&ostree, booted_deployment.as_ref())?;
```
**Error**: Cannot access deployments
**Response**: Propagate error up the call stack
### 3. Format Version Errors
```rust
match opts.format_version.unwrap_or_default() {
0 | 1 => {}
o => anyhow::bail!("Unsupported format version: {o}"),
};
```
**Error**: Unsupported format version
**Response**: Return error with message
## Usage Patterns
### 1. Interactive Use
```bash
# Check system status
bootc status
# Check with verbose output
bootc status --verbose
# Check only booted deployment
bootc status --booted
```
### 2. Programmatic Use
```bash
# Get JSON output for parsing
bootc status --format=json
# Get YAML output for parsing
bootc status --format=yaml
# Check if system is bootc compatible
bootc status --format=json | jq '.status.booted != null'
```
### 3. Automation Scripts
```bash
#!/bin/bash
# Check if rollback is queued
if bootc status --format=json | jq -r '.status.rollbackQueued' | grep -q true; then
echo "Rollback is queued for next boot"
fi
# Get current image version
CURRENT_VERSION=$(bootc status --format=json | jq -r '.status.booted.image.version // "unknown"')
echo "Current version: $CURRENT_VERSION"
```
## Integration with Other Commands
### 1. Relationship to bootc upgrade
**Status Before Upgrade**:
```bash
bootc status
bootc upgrade --apply
bootc status
```
**Status After Upgrade**:
- Shows new staged deployment
- Shows updated booted deployment
- Shows previous deployment as rollback
### 2. Relationship to bootc switch
**Status Before Switch**:
```bash
bootc status
bootc switch quay.io/myorg/debian-bootc:v2.0
bootc status
```
**Status After Switch**:
- Shows new image reference
- Shows staged deployment
- Shows updated boot order
### 3. Relationship to bootc rollback
**Status Before Rollback**:
```bash
bootc status
bootc rollback
bootc status
```
**Status After Rollback**:
- Shows rollback queued status
- Shows updated boot order
- Shows deployment reordering
## Troubleshooting
### 1. Common Issues
#### System Not Bootc Compatible
```bash
# Check if system is bootc compatible
bootc status --format=json | jq '.status.booted != null'
# Check OSTree status
ostree admin status
```
#### No Deployments Found
```bash
# Check deployment status
ostree admin status
# Check system logs
journalctl -u bootc-fetch-apply-updates.service
```
#### Format Parsing Errors
```bash
# Use specific format
bootc status --format=json
# Check format version
bootc status --format-version=1
```
### 2. Debug Commands
```bash
# Enable debug logging
RUST_LOG=debug bootc status
# Check system logs
journalctl -u bootc-fetch-apply-updates.service
# Check OSTree status
ostree admin status --verbose
```
## Best Practices
### 1. Programmatic Usage
- **Use JSON/YAML**: For programmatic parsing
- **Check Format Version**: Specify format version explicitly
- **Handle Errors**: Check for null values and errors
- **Validate Output**: Verify expected fields exist
### 2. Interactive Usage
- **Use Human Readable**: For interactive use
- **Use Verbose**: For detailed information
- **Check Booted**: Focus on current deployment
- **Monitor Changes**: Track status over time
### 3. Automation
- **Parse JSON**: Use `jq` for JSON parsing
- **Check Compatibility**: Verify bootc compatibility
- **Monitor Status**: Track deployment changes
- **Handle Errors**: Implement proper error handling
## Future Enhancements
### 1. Planned Features
- **Additional Formats**: Support for more output formats
- **Filtering Options**: More granular filtering
- **Status History**: Track status changes over time
- **Health Checks**: Include system health information
### 2. Integration Improvements
- **API Support**: REST API for status queries
- **Web Interface**: Web-based status display
- **Monitoring Integration**: Integration with monitoring systems
- **Alerting**: Status-based alerting
This technical guide provides comprehensive understanding of the bootc status system's architecture, implementation, and usage patterns.