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92 lines
2.2 KiB
Bash
Executable File
92 lines
2.2 KiB
Bash
Executable File
#!/bin/bash
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#
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# Init file for SSH Public Keys Download Client
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#
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# chkconfig: 345 98 02
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# description: SSH Public Keys Download Client
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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# Modify this line to specify the user (default is root)
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user=root
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# Add your DHCP lease folders here
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DHCP_FOLDERS="/var/lib/dhclient/* /var/lib/dhcp3/*"
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keys_received=0
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file_count=0
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for DHCP_FILE in $DHCP_FOLDERS
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do
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if [ -f $DHCP_FILE ]
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then
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file_count=$((file_count+1))
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SSHKEY_SERVER_IP=$(grep dhcp-server-identifier $DHCP_FILE | tail -1 | awk '{print $NF}' | tr -d '\;')
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if [ -n "$SSHKEY_SERVER_IP" ]
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then
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logger -t "cloud" "Sending request to ssh key server at $SSHKEY_SERVER_IP"
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publickey=$(wget -t 3 -T 20 -O - http://$SSHKEY_SERVER_IP/latest/public-keys 2>/dev/null)
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if [ $? -eq 0 ]
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then
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logger -t "cloud" "Got response from server at $SSHKEY_SERVER_IP"
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keys_received=1
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break
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fi
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else
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logger -t "cloud" "Could not find ssh key server IP in $DHCP_FILE"
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fi
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fi
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done
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# did we find the keys anywhere?
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if [ "$keys_received" == "0" ]
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then
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logger -t "cloud" "Failed to get ssh keys from any server"
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exit 1
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fi
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# set ssh public key
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homedir=$(grep ^$user /etc/passwd|awk -F ":" '{print $6}')
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sshdir=$homedir/.ssh
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authorized=$sshdir/authorized_keys
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if [ ! -e $sshdir ]
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then
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mkdir $sshdir
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fi
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if [ ! -e $authorized ]
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then
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touch $authorized
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fi
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cat $authorized|grep -v "$publickey" > $authorized
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echo "$publickey" >> $authorized
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exit 0
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