Reboot Machines by Monitoring email Instructions - Revision history

Michael.mast: /* Systemd Unit File */

2018-04-26T15:11:37Z

Systemd Unit File

Michael.mast: /* Process */

2018-04-24T21:49:39Z

Process

Michael.mast: /* Parsing directly from email */

2018-04-23T20:53:46Z

Parsing directly from email

Michael.mast: /* Full Script */

2018-04-23T20:53:09Z

Full Script

Michael.mast: /* Fetchmail */

2018-04-23T20:51:36Z

Fetchmail

Michael.mast: /* Parsing directly from email */

2018-04-23T20:50:47Z

Parsing directly from email

Michael.mast: /* LDAP Search */

2018-04-23T20:49:07Z

LDAP Search

Michael.mast: /* Parsing directly from email */

2018-04-23T20:47:56Z

Parsing directly from email

Michael.mast: /* Full Script */

2018-04-23T20:35:40Z

Full Script

Michael.mast: /* Process */

2018-04-19T14:00:22Z

Process

@@ Line 218: / Line 218: @@
 <ref>https://virtualizationreview.com/articles/2017/06/01/how-to-install-and-use-powershell-and-powercli-on-linux.aspx</ref>
 ===Systemd Unit File===
 To have the script start at boot:
 <pre>

@@ Line 205: / Line 205: @@
 			done
 		echo "$subject" | cat - "$mail5" | sendmail -f $emailsource $1
 		sleep 120
 		fi
@@ Line 218: / Line 217: @@
 ====Restart VMs in vsphere====
 <ref>https://virtualizationreview.com/articles/2017/06/01/how-to-install-and-use-powershell-and-powercli-on-linux.aspx</ref>

@@ Line 101: / Line 101: @@
 =====Parsing directly from email=====
-In this sample we want to pull the email address and subject from the email.<ref>https://serverfault.com/questions/513358/how-to-delete-all-mails-of-user-in-linuxcentos</ref>
+In this sample we want to pull the email address and subject from the email.<ref>https://serverfault.com/questions/513358/how-to-delete-all-mails-of-user-in-linuxcentos</ref><ref>https://stackoverflow.com/questions/10408816/how-do-i-use-the-nohup-command-without-getting-nohup-out</ref>
 <pre>
 #!/bin/bash

@@ Line 144: / Line 144: @@
 *Also that your primary SMTP proxy address is the address you are sending from.<br>
 *This script is called by the email script, with the email address as input.
 <pre>
 #!/bin/bash

@@ Line 67: / Line 67: @@
 fetchmail: outlook.office365.com fingerprints match.
 fetchmail: SSL/TLS: using protocol TLSv1.2, cipher ECDHE-RSA-AES256-GCM-SHA384, 256/256 secret/processed bits
-fetchmail: IMAP< * OK The Microsoft Exchange IMAP4 service is ready. [QgBOADMAUABSADAAMwBDAEEAMAAxADAAOAAuAG4AYQBtAHAAcgBkADAAMwAuAHAAcgBvAGQALgBvAHUAdABsAG8AbwBrAC4AYwBvAG0A]
+fetchmail: IMAP< * OK The Microsoft Exchange IMAP4 service is ready.
 fetchmail: IMAP> A0001 CAPABILITY
 fetchmail: IMAP< * CAPABILITY IMAP4 IMAP4rev1 AUTH=PLAIN AUTH=XOAUTH2 SASL-IR UIDPLUS MOVE ID UNSELECT CHILDREN IDLE NAMESPACE LITERAL+
@@ Line 88: / Line 88: @@
 fetchmail: normal termination, status 1
 </pre>
 ===Parse Received Email===
 In this poor example I will be parsing the emails through a custom script. It would probably be better to do this using established tools.

@@ Line 96: / Line 96: @@
 =====LDAP Search=====
-*Install openldap client
+*Install openldap client <ref>https://www.ibm.com/support/knowledgecenter/en/SSKTMJ_9.0.1/admin/conf_examplesofusingldapsearch_t.html</ref>
 <pre>yum -y install openldap-clients</pre>
 =====Parsing directly from email=====
 In this sample we want to pull the email address and subject from the email.

@@ Line 99: / Line 99: @@
 <pre>yum -y install openldap-clients</pre>
 =====Parsing directly from email=====
-In this sample we want to pull the email address and subject from the email. At the moment this only works with a single email at a time for obvious reasons. Does not scale well.
+In this sample we want to pull the email address and subject from the email.
 <pre>
 #!/bin/bash
@@ Line 105: / Line 105: @@
 filetag2="/tmp/parse_$(date +%s)"
 filetag3="/tmp/address_$(date +%s)"
 fetchmail --sslproto TLS1.2+ --sslcertck
 if [ "$?" -ne "1" ] && [ "$?" -ne "0" ]; then
-        /usr/bin/echo "$(date) : Failed to download emails" >> /home/email/fetch_log
+	/usr/bin/echo "$(date) : Failed to download emails" >> /home/<rebootuser>/fetch_log
 else
-    	/usr/bin/cp /var/mail/email $filetag1
+	/usr/bin/cp /var/mail/<rebootuser> $filetag1
-        grep -E Subject:\|From: $filetag1 | sed 'N;s/\n/ /' > $filetag2
+	grep -E Subject:\|From: $filetag1 | sed 'N;s/\n/ /' > $filetag2
-        :> /var/mail/email
+	:> /var/mail/email
-        /usr/bin/rm -f $filetag1
+	/usr/bin/rm -f $filetag1
-        while read line; do
+	while read line; do
-        user=$(grep -Ei Subject:\ [a-z]+,[a-z].[a-z]+ <<<$line | awk 'BEGIN {FS=","} {print $2}')
+	from1=$(grep -Eo "From:.*[a-zA-Z_'-']+@[a-zA-Z_'-']+.com>" <<<$line | sed -e 's/From:\ [A-Za-z]\+\ [A-Za-z]\+\ <//g; s/>//g')
-        from1=$(grep -Eo "From:.*[a-zA-Z_'-']+@[a-zA-Z_'-']+.com>" <<<$line | sed -e 's/From:\ [A-Za-z]\+\ [A-Za-z]\+\ <//g; s/>//g')
+	if grep -qiE domain1.tld\|domain2.tld <<< $from1 ; then
-        if grep -qiE domain1.tld\|domain2.tld\|domain3.tld <<< $from1 ; then
+		echo "$subject" | cat - "$mail1" | sendmail -f $emailsource $from1
+		/home/<rebootuser>/restart.sh $from1 &
-               /home/mailuser/restartdesktop.sh $user &
+	fi
-        fi
+	done < $filetag2
-        done < $filetag2
+	/usr/bin/rm $filetag2
 fi
 </pre>

@@ Line 133: / Line 133: @@
 <pre>net rpc shutdown -r -W <domain> -S <hostname> --user <username> </pre>
 =====Full Script=====
 <pre>
 #!/bin/bash
-netreboot_log="/home/mailuser/netreboot_log"
+netreboot_log="/home/<rebootuser>/netreboot_log"
-filelocation="/mnt/"
+filelocation="<mount point>"
-image=$(echo $(ls -t1 $filelocation | grep -i <common machine prefix> | grep -i $1 | head -1) | grep -Eio <common machine prefix-[0-9]\{1,2\})
+user=$(ldapsearch -x -h <domain.tld> -D "cn=rebootuser,ou=Users,DC=<domain>,DC=<tld>" -w <password> -b OU=Users,DC=<domain>,DC=<tld> "(&(objectClass=user)(proxyaddresses=SMTP:$1))" samaccountname | grep -iEo sAMAccountName:\ [a-z]+\.[a-z]+$ | sed 's/sAMAccountName:\ //')
-net rpc shutdown -r -t 0 -W domain.tld -S $image --user user%password
-if [ "$?" -ne "0" ]; then
-        echo "$(date) : Reboot of $image failed" >> $netreboot_log
+if ! grep -qiE [a-z]+\.[a-z]+$  <<< $user; then
 else
-    	ping="0%"
+	image=$(echo $(ls -t1 $filelocation | grep -i <machine name prefix> | grep -i $user | head -1) | grep -Eio csp-vdi-[0-9]\{1,2\})
-        count="0"
+	net rpc shutdown -r -t 0 -W domain.tld -S $image --user <reboot user>%<password>
-        until [ "$ping" = "100%" ];
+	if [ "$?" -ne "0" ]; then
-        do
+		echo "$(date) : Reboot of $image failed" >> $netreboot_log
-	if [ "$count" -eq "60" ]; then
+		echo "$subject" | cat - "$mail3" | sendmail -f $emailsource $1
-                echo "$(date) : $image has not gone down after 1 minute" >> $netreboot_log
+	else
-                ping="100%"
+		ping="0%"
-                testout="failed"
+		count="0"
-        else
+		until [ "$ping" = "100%" ];
-            	count=$((count + 1))
+		do
-                ping=$(ping -c1 -W1 $image | grep -Eo [0-9]+\%)
+		if [ "$count" -eq "120" ]; then
-                sleep 1
+			echo "$(date) : $image has not gone down after 2 minutes" >> $netreboot_log
-        fi
+			ping="100%"
-	done
+			testout="failed"
-	if [ "$testout" != "failed" ]; then
+			echo "$subject" | cat - "$mail3" | sendmail -f $emailsource $1
-                ping="100%"
+		else
-                count="0"
+			count=$((count + 1))
-                testout="other"
+			ping=$(ping -c1 -W1 $image | grep -Eo [0-9]+\%)
-                until [ "$ping" = "0%" ];
+			sleep 1
-                do
+		fi
-                if [ "$count" -eq "300" ]; then
+		done
-                        echo "$(date) : $image has not come back up after 5 minutes" >> $netreboot_log
+		if [ "$testout" != "failed" ]; then
-                        ping="0%"
+			ping="100%"
-                        testout="failed"
+			count="0"
-                else
+			testout="other"
-                    	count=$((count + 1))
+			until [ "$ping" = "0%" ];
-                     	ping=$(ping -c1 -W1 $image | grep -Eo [0-9]+\%)
+			do
-                fi
+			if [ "$count" -eq "300" ]; then
-                done
+				echo "$(date) : $image has not come back up after 5 minutes" >> $netreboot_log
-        echo "Waiting 2 minutes for $image to finish booting"
+				ping="0%"
-        sleep 120
+				testout="failed"
-        fi
+				echo "$subject" | cat - "$mail4" | sendmail -f $emailsource $1
-	if [ "$testout" != "failed" ]; then
+			else
-                echo "$image should be ready."
+				count=$((count + 1))
-        fi
+				ping=$(ping -c1 -W1 $image | grep -Eo [0-9]+\%)
 fi
+exit
 </pre>
 ====Restart VMs in vsphere====
 <ref>https://virtualizationreview.com/articles/2017/06/01/how-to-install-and-use-powershell-and-powercli-on-linux.aspx</ref>

@@ Line 11: / Line 11: @@
 ==Process==
 Here I am using Centos 7 with a basic install. Epel-release is installed as well.
-===Fetchmail===
+===Email Config===
 *Install fetchmail
   yum -y install fetchmail