[UPDATE] - motd & generate

Dockerfile

@@ -19,7 +19,7 @@ RUN echo "isen:isen" | chpasswd
 RUN sed -i "/%sudo/s/ALL$/NOPASSWD: ALL/" /etc/sudoers
 
 RUN apt install less -y
-RUN apt install  manpages-dev man-db shc gcc build-essential -y
+RUN apt install  manpages-dev man-db shc gcc build-essential iputils-ping nmap -y 
 COPY ./data/bin/firstconnect /usr/bin/firstconnect 
 RUN chmod 755 /usr/bin/firstconnect
 RUN chown root:root /usr/bin/firstconnect

README.md

@@ -12,6 +12,13 @@ NAME Surname
 NAME2 Surname2
 ```
 
+## Motd
+
+You can add a specific motd to copy on insances 
+
+You can use specfic tag '__MOTD__' in your motd  which be replaced by the NAMES of data/liste
+
+
 ## Build Docker image
 
 ```

data/liste

@@ -1,10 +1,2 @@
-ASTIER Guillaume
-LEFEBVRE Loic
-CATANESE Yann
-USER One
-MAN Two
-GUY Three
-DEMO Guillaume
-DEMO Yann
-DEMO Loic
-
+DEMO Neo
+DEMO Trinity

data/motd

@@ -0,0 +1 @@
+__MOTD__ SSH

generate.sh

@@ -1,12 +1,22 @@
 #!/bin/bash
 
+
+usage () {
+
+	[[ $1 -eq 1 ]] && echo "root for use" 
+	exit $1
+
+}
+
+[[ "$(whoami)" != "root" ]] && usage 1
+
 Liste=./data/liste
 ID=2000
 tID=2
 
 
 cp docker-compose.yml.template.head /tmp/docker-compose.yml
-rm  /tmp/hostname
+[ -f /tmp/hostname ] && rm  /tmp/hostname
 
 
 for User in $(cat ${Liste} | grep ^[A-Z][A-Z].*\ [A-Z][a-z] | sed "s#[a-z]#|#g" | cut -d"|" -f1 | sed "s#-# #g"| sed "s# \+#-#g")
@@ -16,30 +26,37 @@ for User in $(cat ${Liste} | grep ^[A-Z][A-Z].*\ [A-Z][a-z] | sed "s#[a-z]#|#g"
 		#if [[ ! -z $(mount | grep ${User}) ]] && [[ "$1" == "del" ]]
 		if [[ "$1" == "del" ]]
 			then
-				umount ./data/students/part/${User}_part
-				rmdir ./data/students/part/${User}_part
-				rm ./data/students/part/${User}
+				[[ ! -z $(mount | grep ${User}_part) ]] && umount ./data/students/part/${User}_part
+				[[ -d ./data/students/part/${User}_part ]] && rm -Rf ./data/students/part/${User}_part
+				[[ -f ./data/students/part/${User} ]] && rm ./data/students/part/${User}
 			else
 				if [[ ! -f ./data/students/part/${User} ]]
 					then
 						echo "Generate $User"
+						mkdir -p ./data/students/part/
 						touch ./data/students/part/${User}
-						mkdir ./data/students/part/${User}_part
+						mkdir -p ./data/students/part/${User}_part
 						truncate -s 200M ./data/students/part/${User} &> /dev/null
 						mke2fs -t ext4 -F ./data/students/part/${User} &> /dev/null
 						mount ./data/students/part/${User} ./data/students/part/${User}_part
 						cp -Rf ./data/skel/. ./data/students/part/${User}_part/
-						mkdir ./data/students/part/${User}_part/.gen/
+						mkdir -p ./data/students/part/${User}_part/.gen/
 						mv ./data/students/part/${User}_part/backup.sh ./data/students/part/${User}_part/.gen/
-						echo "host : ${User^^}" | figlet > /tmp/motd
-						echo "---------" | figlet >> /tmp/motd
-						echo "Isen 2021 - M 1"| figlet  >> /tmp/motd
+						if [[ -f ./data/motd ]]
+							then
+								cat ./data/motd | sed "s#__MOTD__#$User#g" | figlet | tee ./data/students/part/${User}_part/.gen/motd &> /dev/null
+
+							else
+								echo "host : ${User^^}" | figlet |  tee /tmp/motd &> /dev/null
+								echo "---------" | figlet |  tee -a  /tmp/motd &> /dev/null
+								echo "Isen 2021 - M 1"| figlet  |  tee -a  /tmp/motd &> /dev/null
+								cp /tmp/motd ./data/students/part/${User}_part/.gen/
+						fi
 						cp -rfp ./data/ssh/ ./data/students/part/${User}_part/.gen/.ssh
 						cp -rfp ./data/ssh/ ./data/students/part/${User}_part/.ssh
-						cp /tmp/motd ./data/students/part/${User}_part/.gen/
 						[[ -z $(echo $User | grep -iE "astier|lefebvre|catanese") ]] && rm -f ./data/students/part/${User}_part/.gen/.ssh/id* ./data/students/part/${User}_part/.ssh/id*			
 						chown -Rf 1000:1000 ./data/students/part/${User}_part/
-						echo "10.10.10.${tID} ${User,,}"  >> /tmp/hostname
+					echo "10.10.10.${tID} ${User,,}"  | tee -a /tmp/hostname &> /dev/null
 						echo "
     ${User}:
         image: isensshbase
@@ -49,17 +66,17 @@ for User in $(cat ${Liste} | grep ^[A-Z][A-Z].*\ [A-Z][a-z] | sed "s#[a-z]#|#g"
         networks:
             vpcbr:
                 ipv4_address: 10.10.10.${tID}
-"  >> /tmp/docker-compose.yml
+"  | tee -a /tmp/docker-compose.yml &> /dev/null
 				fi
 		fi 
 
 done
 
-cat docker-compose.yml.template.footer >> /tmp/docker-compose.yml
+cat docker-compose.yml.template.footer |  tee -a  /tmp/docker-compose.yml &> /dev/null
 cp /tmp/docker-compose.yml .
 for Dir in $( ls -1 ./data/students/part/ | grep _part)
 	do
-		cp /tmp/hostname ./data/students/part/${Dir}/.gen
+		[[ -f /tmp/hostname ]] && cp /tmp/hostname ./data/students/part/${Dir}/.gen
 	done