93 lines
2.9 KiB
Bash
Executable File
93 lines
2.9 KiB
Bash
Executable File
#!/bin/bash -e
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#
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# sync-router shell scripts to synchronize cisco configuration and DHCP static
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# lease files with with GIT repository. Operations performed:
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# - update header of modified DHCP static lease files, upload
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# them using using scp and add them to the next commit
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# - restart Cisco DHCP service after updating static lease files
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# - copy Cisco startup-config using scp and add to next commit
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# - commit changes to the git repository
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#
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# Version 1.0, latest version at: https://gitlab.lindenaar.net/scripts/cisco
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#
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# Copyright (c) 2016 Frederik Lindenaar
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#
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# This script is free software: you can redistribute and/or modify it under the
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# terms of version 3 of the GNU General Public License as published by the Free
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# Software Foundation, or (at your option) any later version of the license.
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#
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# This script is distributed in the hope that it will be useful but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along with
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# this program. If not, visit <http://www.gnu.org/licenses/> to download it.
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### Configuration ###
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router=`basename \`dirname $0 | pwd\`` # name of router - based on directory
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syncfiles=dhcp-\* # list/pattern of dhcp lease files
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fileto=flash: # location of dhcp lease files on cisco
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### Implementation ###
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echo updating with $router
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# Process the DHCP static lease files that have changed
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git status -s "$syncfiles" | while read status filename
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do
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case $status in
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\?\?)
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echo skipping $filename as it is not yet added to the repository
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;;
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D)
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echo removing $filename as it is no longer in the repository
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ssh -q $router "delete /force $fileto$filename"
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;;
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A |M)
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echo updating and uploading modified file $filename
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head -2 $filename | while read tag value
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do
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case $tag in
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\*time\*)
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date +"$tag %h %d %Y %l:%M %p" > .$filename.$$.tmp
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;;
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\*version\*)
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echo $tag $[ $value + 1 ] >> .$filename.$$.tmp
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;;
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*)
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echo "found unknown entry \"$tag $value\", aborting"
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exit 1
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;;
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esac
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done
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tail +3 $filename >> .$filename.$$.tmp
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scp -q .$filename.$$.tmp $router:$fileto$filename
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mv .$filename.$$.tmp $filename
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git add $filename
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;;
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*)
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echo unsupported git status "$status", aborting
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exit 1
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;;
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esac
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done
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# Restart the DHCP service on the router if any of the dhcp files changed
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if git status -s "$syncfiles" | egrep -q ^[MAD]; then
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echo restarting dhcp service
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cat << EOT | ssh -q $router
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configure terminal
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no service dhcp
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service dhcp
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exit
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exit
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EOT
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fi
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# Fetch the current start-up configuration and add it to the repository
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scp -q $router:startup-config .
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git diff startup-config
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git add startup-config
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# and commit the changes (or unadd new configuration when commit is aborted)
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git commit || git reset HEAD startup-config
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