49 lines
1.8 KiB
Bash
Executable File
49 lines
1.8 KiB
Bash
Executable File
#!/bin/sh
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##
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# Copyright (C) 2013-2014 Janek Bevendorff
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# Website: http://www.refining-linux.org/
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#
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# Add SSH key to a backup user for passwordless login
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#
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# The MIT License (MIT)
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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##
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if [ "$1" == "" ] || [ "$2" == "" ] || [ "$3" == "" ]; then
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. rs-version
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echo "Usage: $(basename $0) <remote host> <remote username> <ssh public key file>"
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exit
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fi
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. /etc/rs-backup/server-config
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home_dir="${BACKUP_ROOT}/${1}-${2}"
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mkdir -p "${home_dir}/.ssh"
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# Add public key to authorized_keys file and restrict shell commands
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echo -n "command=\"/usr/bin/rs-run-ssh-cmd '${home_dir}'\" " >> "${home_dir}/.ssh/authorized_keys"
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cat "$3" >> "${home_dir}/.ssh/authorized_keys"
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# Protect SSH config by assigning ownership to root
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chown -R root:root "${home_dir}/.ssh"
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chmod 0755 "${home_dir}/.ssh"
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chmod 0644 "${home_dir}/.ssh/authorized_keys"
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