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Copied code from the bash framework and add json based config file support

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kake26 2023-12-09 22:37:59 -06:00
parent 3ccf356c11
commit 6d893a43a6
3 changed files with 78 additions and 10 deletions
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30
backup.bash
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@ -1,23 +1,33 @@
#!/bin/bash
# Another OpenWrt bash script
set -eo pipefail # you cann add u into -eo, but it drives me nuts so I won't
if [[ -n "${BASHD_DEBUG}" ]]; then # a inevitability that this will be used
set -x
fi
trap cleanup EXIT # A little more robust cleanup
cleanup() {
# We can clean up any temp files or what nots, but for now a place holder
true
}
source ./config.bash
# Run backups via restic
bkpwd="yourbackuppasswordhere" # We are gonna need that
bkpwd=$(read_json "$JSON_FILE" "restic" "password")
export RESTIC_PASSWORD="$bkpwd"
# resticbasecmd = "restic -r sftp:restic@192.168.1.113:/home/restic backup" # root ssh key must be setup to access the remote target
# OpenWrt uses dropbear so use dropbear's key gen
# Stuff to backup
# Two dirs I want to keep backed up
/usb/scripts/bin/restic -r sftp:pi@192.168.1.168:/storage/backup/openwrt backup /etc
/usb/scripts/bin/restic -r sftp:nbak@192.168.1.168:/storage/backup/openwrt backup /etc
curl -d "ETC backed up" 192.168.1.168:83/openwrt_backup
/usb/scripts/bin/restic -r sftp:pi@192.168.1.168:/storage/backup/openwrt backup /usb/scripts
/usb/scripts/bin/restic -r sftp:nbak@192.168.1.168:/storage/backup/openwrt backup /usb/scripts
curl -d "Scripts backed up" 192.168.1.168:83/openwrt_backup
/usb/scripts/bin/restic -r sftp:pi@192.168.1.168:/storage/backup/openwrt backup /root
/usb/scripts/bin/restic -r sftp:nbak@192.168.1.168:/storage/backup/openwrt backup /root
curl -d "Root backed up" 192.168.1.168:83/openwrt_backup
/usb/scripts/bin/restic -r sftp:pi@192.168.1.168:/storage/backup/openwrt backup /usb/vnstat/vnstat.db
/usb/scripts/bin/restic -r sftp:nbak@192.168.1.168:/storage/backup/openwrt backup /usb/vnstat/vnstat.db
curl -d "Vnstat backed up" 192.168.1.168:83/openwrt_backup

13
band.bash
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@ -1,6 +1,19 @@
#!/bin/bash
# Requires vnstat to be running on target system
set -eo pipefail # you cann add u into -eo, but it drives me nuts so I won't
if [[ -n "${BASHD_DEBUG}" ]]; then # a inevitability that this will be used
set -x
fi
trap cleanup EXIT # A little more robust cleanup
cleanup() {
# We can clean up any temp files or what nots, but for now a place holder
true
}
# initial values
mtotal=1000 # monthly total in GB for high end cut off
dmax=40 # daily max usage value

45
config.bash Normal file
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@ -0,0 +1,45 @@
#!/bin/bash
JSON_FILE="config.json"
read_json() {
local JSON_FILE="$1"
local SECTION="$2"
local KEY="$3"
jq -r ".${SECTION}.${KEY}" "$JSON_FILE"
}
# Function to write a value to a JSON configuration file
write_json() {
local JSON_FILE="$1"
local SECTION="$2"
local KEY="$3"
local VALUE="$4"
# It important to check if the file is valid otherwise stuff breaks
if ! jq -e . < "$JSON_FILE" > /dev/null 2>&1; then
echo "Error: JSON file is not valid JSON."
return 1
fi
# Using jq to set the value. The original file is replaced with a new file with the updated value.
jq ".${SECTION}.${KEY} = \"$VALUE\"" "$JSON_FILE" > "temp.json" && mv "temp.json" "$JSON_FILE"
}
create_json() {
local JSON_FILE="$1"
echo '{"bashini": "new"}' | jq '.' > "$JSON_FILE" # well we need something in there
write_json "$JSON_FILE" "restic" "password" "backupsarefun" # for the openwrt backup script here for testing
}
check_json() {
local JSON_FILE="$1"
if [ ! -f "$JSON_FILE" ]; then
create_json "$JSON_FILE"
fi
}
check_json "$JSON_FILE"