The script has a simple algorithm:
> The first time it runs it creates a file to gather all the protected client list
> The next time it runs it will check what is missing since the last protect client list.
> New added VMs will not be considered as Missing, however on Next iteration of script execution it will run a check to see if the new clients are missing.
> If you remove the first generated file for protected list post your second execution, then the third iteration will be void as it will generate a new protected client list.
The script has an email feature to send the output to a mailing address. If you want to exclude this, then discard line-21 to line-32. If you want to run the script as a cronjob, you can add it to crontab -e, but you cannot have manual email address input running in the script. You will have to create a constant for your email address and call it in the EOF.
The script can be accessed from my repository here:
https://github.com/happycow92/shellscripts/blob/master/missing-client.sh
The code {}
| #!/bin/bash | |
| IFS=$(echo -en “nb“) | |
| FILE=/tmp/protected_client.txt | |
| if [ ! -f $FILE ] | |
| then | |
| client_list=$(mccli client show –recursive=true | grep -i /$(cat /usr/local/vdr/etc/vcenterinfo.cfg | grep vcenter-hostname | cut -d ‘=‘ -f 2)/VirtualMachines | awk -F/ ‘{print $(NF-2)}‘) | |
| echo “$client_list“ &> /tmp/protected_client.txt | |
| sort /tmp/protected_client.txt -o /tmp/protected_client.txt | |
| else | |
| new_list=$(mccli client show –recursive=true | grep -i /$(cat /usr/local/vdr/etc/vcenterinfo.cfg | grep vcenter-hostname | cut -d ‘=‘ -f 2)/VirtualMachines | awk -F/ ‘{print $(NF-2)}‘) | |
| echo “$new_list“ &> /tmp/new_list.txt | |
| sort /tmp/new_list.txt -o /tmp/new_list.txt | |
| missing=$(comm -3 /tmp/protected_client.txt /tmp/new_list.txt | sed ‘s/^ *//g‘) | |
| if [ -z “$missing“ ] | |
| then | |
| printf “nNo Client’s missingn“ | |
| else | |
| printf “nMissing Client is:n“ | tee -a /tmp/email_list.txt | |
| printf “$missingnn“ | tee -a /tmp/email_list.txt | |
| printf “Emailing the listn“ | |
| FILE=/tmp/email_list.txt | |
| read -p “Enter Your Email: “ TO | |
| FROM=admin@$(hostname) | |
| (cat – $FILE)<< EOF | /usr/sbin/sendmail -f $FROM -t $TO | |
| Subject: Missing VMs from Jobs | |
| To: $TO | |
| EOF | |
| sleep 2s | |
| printf “nEmail Sent. Exiting Scriptnn“ | |
| fi | |
| rm /tmp/new_list.txt | |
| rm -f /tmp/email_list.txt | |
| fi |
Feel free to reply for any issues. Hope this helps!
