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[on-boot-script] Improve example scripts (add-cron-jobs, add-root-ssh-key(s)) (#270)

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* [on-boot-script] Improve add-cron-jobs example script

* Add .sh extension for consistency
* Small improvements to documentation

* [on-boot-script] Improve add-root-ssh-key(s) example script

* Complete rewrite of script
* Rename from "add-root-ssh-key" to "add-root-ssh-keys"
This commit is contained in:
Christian Neff 2021-11-29 06:06:20 +01:00 committed by GitHub
parent cb9c5435fd
commit feac1111d7
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4 changed files with 38 additions and 39 deletions
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31
on-boot-script/examples/udm-files/on_boot.d/15-add-root-ssh-key.sh
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#!/bin/sh
#####################################################
# ADD RSA KEYS AS BELOW - CHANGE BEFORE RUNNING #
#####################################################
# set -- "ssh-rsa first key here all keys quoted" \ #
# "ssh-rsa each line appended with slash " \ #
# "ssh-rsa last one has no backslash" #
#####################################################
set -- "ssh-rsa AAAABUNCHOFCHARACTERSANDSTUFF me on MyMachine" \
"ssh-rsa AAAADIFFERENTKEYWITHCHARSETC! user@myhost"
KEYS_FILE="/root/.ssh/authorized_keys"
counter=0
for key in "$@"
do
## Places public key in ~/.ssh/authorized_keys if not present
if ! grep -Fxq "$key" "$KEYS_FILE"; then
let counter++
echo "$key" >> "$KEYS_FILE"
fi
done
echo $counter keys added to $KEYS_FILE
echo Converting SSH private key to dropbear format
#convert ssh key to dropbear for shell interaction
dropbearconvert openssh dropbear /mnt/data/ssh/id_rsa /root/.ssh/id_dropbear
exit 0;

29
on-boot-script/examples/udm-files/on_boot.d/15-add-root-ssh-keys.sh Normal file
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#!/bin/sh
## Places public keys in ~/.ssh/authorized_keys
KEYS_SOURCE_FILE="/mnt/data/on_boot.d/settings/ssh/authorized_keys"
KEYS_TARGET_FILE="/root/.ssh/authorized_keys"
count_added=0
count_skipped=0
while read -r key; do
# Places public key in ~/.ssh/authorized_keys if not present
if ! grep -Fxq "$key" "$KEYS_TARGET_FILE"; then
let count_added++
echo "$key" >> "$KEYS_TARGET_FILE"
else
let count_skipped++
fi
done < "$KEYS_SOURCE_FILE"
echo "${count_added} keys added to ${KEYS_TARGET_FILE}"
if [ $count_skipped -gt 0 ]; then
echo "${count_skipped} already added keys skipped"
fi
# Convert ssh key to dropbear for shell interaction
echo "Converting SSH private key to dropbear format"
dropbearconvert openssh dropbear /mnt/data/ssh/id_rsa /root/.ssh/id_dropbear
exit 0

8
on-boot-script/examples/udm-files/on_boot.d/25-add-cron-jobs
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#!/bin/sh
# store crontab files in /mnt/data/cronjobs/ (you will need to create this foler)
# this script will re-add them on startup
cp /mnt/data/cronjobs/* /etc/cron.d/
/etc/init.d/crond restart
exit 0

9
on-boot-script/examples/udm-files/on_boot.d/25-add-cron-jobs.sh Normal file
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#!/bin/sh
## Store crontab files in /mnt/data/cronjobs/ (you will need to create this folder).
## This script will re-add them on startup.
cp /mnt/data/cronjobs/* /etc/cron.d/
/etc/init.d/crond restart
exit 0