115 lines
3.3 KiB
Bash
115 lines
3.3 KiB
Bash
#!/bin/sh
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fatal() {
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echo "Error: $1"
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exit 1
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}
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error () {
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echo "Error: $1"
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}
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info() {
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echo "$1"
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}
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debug() {
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[ "$RODEO_DEBUG" = "1" ] && info "$1"
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}
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warning() {
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echo "Warning: $1"
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}
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remount () {
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overlay_config=/rodeo/configuration/included_overlays
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[ -n "$1" ] && overlay_config="$1"
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while IFS="" read -r dir || [ -n "$dir" ]
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do
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debug "Scanning for overlays to be mounted on /$dir"
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lowerdirs=""
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while IFS="" read -r overlay || [ -n "$overlay" ]
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do
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debug "Checking if $overlay has $dir"
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if [ -d "/rodeo/overlays/$overlay/$dir" ]; then
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debug "$overlay has $dir"
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if [ -z "$lowerdirs" ]; then
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lowerdirs="/rodeo/overlays/$overlay/$dir"
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else
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lowerdirs="$lowerdirs:/rodeo/overlays/$overlay/$dir"
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fi
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else
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debug "$overlay does not have $dir"
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fi
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done < "$overlay_config"
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umount "/$dir" || error "Unmounting of /$dir failed"
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if [ -z "$lowerdirs" ]; then
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warning "No overlay has $dir"
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mount --bind "/rodeo/root/$dir" "/$dir" || error "Bind-Mounting /$dir failed"
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else
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mount -t overlay overlay -o lowerdir="$lowerdirs",upperdir="/rodeo/root/$dir",workdir="/rodeo/tmp/$dir" "/$dir" || error "Overlay-Mounting /$dir failed"
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fi
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done < /rodeo/configuration/managed_directories
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}
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initial_mount () {
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overlay_config=/rodeo/configuration/included_overlays
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[ -n "$1" ] && overlay_config="$1"
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while IFS="" read -r dir || [ -n "$dir" ]
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do
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debug "Scanning for overlays to be mounted on /$dir"
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lowerdirs=""
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while IFS="" read -r overlay || [ -n "$overlay" ]
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do
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debug "Checking if $overlay has $dir"
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if [ -d "/rodeo/overlays/$overlay/$dir" ]; then
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debug "$overlay has $dir"
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if [ -z "$lowerdirs" ]; then
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lowerdirs="/rodeo/overlays/$overlay/$dir"
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else
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lowerdirs="$lowerdirs:/rodeo/overlays/$overlay/$dir"
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fi
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else
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debug "$overlay does not have $dir"
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fi
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done < "$overlay_config"
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if [ -z "$lowerdirs" ]; then
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warning "No overlay has $dir"
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mount --bind "/rodeo/root/$dir" "/$dir" || error "Bind-Mounting /$dir failed"
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else
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mount -t overlay overlay -o lowerdir="$lowerdirs",upperdir="/rodeo/root/$dir",workdir="/rodeo/tmp/$dir" "/$dir" || error "Overlay-Mounting /$dir failed"
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fi
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done < /rodeo/configuration/managed_directories
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}
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transfer_directory() {
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dir="$1"
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cp -r "/$dir" "/rodeo/root/$dir"
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mkdir "/$dir" "/rodeo/tmp/$dir"
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echo "$dir" >> /rodeo/configuration/managed_directories
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info "Added $dir to the list of managed directories"
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initial_mount
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}
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shell() {
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target="$1"
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overlay_file=/rodeo/configuration/included_overlays
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command="/bin/sh"
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[ -n "$2" ] && overlay_file="$2"
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[ -n "$3" ] && command="$3"
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[ ! -d "$target" ] && mkdir -p "$target"
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info "Mounting Base Filesystems"
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mount --bind / "$target"
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mount --bind /dev "$target/dev"
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mount --bind /sys "$target/sys"
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mount --bind /proc "$target/proc"
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info "Mounting Overlays"
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chroot "$target" /sbin/rodeo-overlay.sh initial-mount "$overlay_file"
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info "Executing $command"
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chroot "$target" "$command"
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}
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[ "$1" = "transfer-directory" ] && transfer_directory "$2"
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[ "$1" = "remount" ] && remount "$2"
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[ "$1" = "initial-mount" ] && initial_mount "$2"
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[ "$1" = "shell" ] && shell "$2" "$3" "$4"
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