incremental improvement in backup/restore facility
phanes
parent
05c65e8d1d
commit
b513be8d4d
10
Makefile
10
Makefile
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@ -77,9 +77,13 @@ build_stage3:
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sudo /usr/bin/env -i bash -c ". ./project_config.sh && ${dir_make}/build_stage3.sh"
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# offers to back up
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build_stage4backup:
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backup:
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set -e
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sudo /usr/bin/env -i bash -c ". ./project_config.sh && ${dir_make}/build_stage4backup.sh"
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sudo /usr/bin/env -i bash -c ". ./project_config.sh && ${dir_make}/backup_create.sh"
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restore_backup:
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set -e
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sudo bash -c ". ./project_config.sh && ${dir_make}/backup_restore.sh"
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build_stage4:
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set -e
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@ -110,7 +114,7 @@ all:
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make build_stage1 && \
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make build_stage2 && \
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make build_stage3 && \
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make build_stage4backup && \
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make backup && \
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make build_stage4
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@ -0,0 +1,107 @@
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#!/usr/bin/env bash
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# fix an issue with open files limit on some hosts
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ulimit -l unlimited
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#ulimit -n 10240
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ulimit -c unlimited
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T_SYSROOT=${dir_sysroot}
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#!/bin/bash
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# move this to the makefile as a dedicated target
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APPNAME="Offer Backup"
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# ISO 8601 variation
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TIMESTAMP="$(date +%Y-%m-%d_%H:%M:%S)"
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LOG_DIR="${LOGS_ROOT}/${APPNAME}-${TIMESTAMP}"
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# the file to log to
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LOGFILE="${APPNAME}.log"
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logprint() {
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mkdir -p "${LOG_DIR}"
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echo "[$(date +%Y-%m-%d_%H:%M:%S)] [${APPNAME}] $1" \
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| tee -a "${LOG_DIR}/${LOGFILE}"
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}
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logprint "Giving the user the option of backing up before proceeding."
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is_mounted() {
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findmnt $1 &> /dev/null
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if [ $? != 0 ]; then
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logprint "Not mounted...skipping."
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/usr/bin/false
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else
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logprint "Mounted..."
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/usr/bin/true
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fi
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}
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function disarm_chroot() {
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logprint "Unmounting CHROOT VFKS mounts"
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logprint "Unmounting ${T_SYSROOT}/dev"
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is_mounted ${T_SYSROOT}/dev && umount -l ${T_SYSROOT}/dev
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logprint "Unmounting ${T_SYSROOT}/dev/pts"
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is_mounted ${T_SYSROOT}/dev/pts && umount -l ${T_SYSROOT}/dev/pts
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logprint "Unmounting ${T_SYSROOT}/proc"
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is_mounted ${T_SYSROOT}/proc && umount -l ${T_SYSROOT}/proc
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# not a symlink on ubuntu
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logprint "Unmounting ${T_SYSROOT}/dev/shm"
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is_mounted ${T_SYSROOT}/dev/shm && umount -l ${T_SYSROOT}/dev/shm
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logprint "Unmounting pyrois inside of chroot"
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is_mounted ${T_SYSROOT}/rex_embedded && umount -l ${T_SYSROOT}/rex_embedded
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}
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function clear_stage() {
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pushd ${project_root}
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make clean
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}
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function restore() {
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# select a backup file
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FILE=$(dialog --title "Choose a restore point." --stdout --title "Please choose an archive to restore from." --fselect ${project_root} 14 48)
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[ ! -z $FILE ] || logprint "User canceled restore." && exit 0
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logprint "Entering backup routine. Clearing stage."
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clear_stage
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logprint "Restoring backup...This will take a long time..."
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tar xphf $FILE
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assert_zero $?
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logprint "Backup restored successfully. Arming chroot."
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pushd ${project_root}
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assert_zero $?
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make arm_chroot
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echo
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logprint "You may now proceed to run 'make build_stage4' or higher."
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echo
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}
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read -r -d '' yn_msg <<-'EOF'
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Restore from backup?
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EOF
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# Use the dialog utility to prompt the user with a yes/no question
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dialog --backtitle "Dark Horse Linux: Pyrois" --title "Restore From Backup" --yesno "$yn_msg" 10 60
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response=$?
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if [ $response -eq 0 ]; then
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logprint "User selected to perform backups."
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restore
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else
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logprint "User canceled. Moving on."
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exit 0
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fi
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@ -0,0 +1,95 @@
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#!/bin/bash
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# move this to the makefile as a dedicated target
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APPNAME="Offer Backup"
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# ISO 8601 variation
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TIMESTAMP="$(date +%Y-%m-%d_%H:%M:%S)"
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LOG_DIR="${LOGS_ROOT}/${APPNAME}-${TIMESTAMP}"
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# the file to log to
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LOGFILE="${APPNAME}.log"
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logprint() {
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mkdir -p "${LOG_DIR}"
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echo "[$(date +%Y-%m-%d_%H:%M:%S)] [${APPNAME}] $1" \
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| tee -a "${LOG_DIR}/${LOGFILE}"
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}
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logprint "Giving the user the option of backing up before proceeding."
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is_mounted() {
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findmnt $1 &> /dev/null
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if [ $? != 0 ]; then
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logprint "Not mounted...skipping."
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/usr/bin/false
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else
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logprint "Mounted..."
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/usr/bin/true
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fi
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}
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function disarm_chroot() {
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logprint "Unmounting CHROOT VFKS mounts"
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logprint "Unmounting ${T_SYSROOT}/dev"
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is_mounted ${T_SYSROOT}/dev && umount -l ${T_SYSROOT}/dev
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logprint "Unmounting ${T_SYSROOT}/dev/pts"
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is_mounted ${T_SYSROOT}/dev/pts && umount -l ${T_SYSROOT}/dev/pts
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logprint "Unmounting ${T_SYSROOT}/proc"
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is_mounted ${T_SYSROOT}/proc && umount -l ${T_SYSROOT}/proc
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# not a symlink on ubuntu
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logprint "Unmounting ${T_SYSROOT}/dev/shm"
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is_mounted ${T_SYSROOT}/dev/shm && umount -l ${T_SYSROOT}/dev/shm
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logprint "Unmounting pyrois inside of chroot"
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is_mounted ${T_SYSROOT}/rex_embedded && umount -l ${T_SYSROOT}/rex_embedded
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}
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function clear_stage() {
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pushd ${project_root}
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make clean
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}
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function restore() {
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# select a backup file
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FILE=$(dialog --title "Choose a restore point." --stdout --title "Please choose an archive to restore from." --fselect ${project_root} 14 48)
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logprint "Entering backup routine."
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disarm_chroot
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disarm_chroot
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logprint "Restoring backup...This will take a long time..."
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tar xpf $FILE
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assert_zero $?
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logprint "Backup restored successfully. Arming chroot."
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pushd ${project_root}
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assert_zero $?
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make arm_chroot
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echo
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logprint "You may now proceed to run 'make build_stage4' or higher."
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echo
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}
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read -r -d '' yn_msg <<-'EOF'
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Restore from backup?
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EOF
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# Use the dialog utility to prompt the user with a yes/no question
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dialog --backtitle "Dark Horse Linux: Pyrois" --title "Restore From Backup" --yesno "$yn_msg" 10 60
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response=$?
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if [ $response -eq 0 ]; then
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logprint "User selected to perform backups."
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restore
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else
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logprint "User canceled. Moving on."
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exit 0
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fi
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@ -0,0 +1,10 @@
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{
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"plan":
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[
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{
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"name": "restore backup",
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"dependencies": [ null ],
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"comment": "LFS 11.3-systemd-rc1 Ch. 7.13.2"
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}
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]
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}
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@ -0,0 +1,22 @@
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{
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"units": [
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{
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"name": "restore backup",
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"target": "components/stage4backup/restore_backup.bash",
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"is_shell_command": true,
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"shell_definition": "bash",
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"force_pty": true,
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"set_working_directory": false,
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"working_directory": "",
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"rectify": false,
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"rectifier": "",
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"active": true,
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"required": true,
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"set_user_context": true,
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"user": "root",
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"group": "root",
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"supply_environment": true,
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"environment": "environments/stage2.env.bash"
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}
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]
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}
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