Merge pull request #11 from sinistro14/dev

Add machine management scripts

src/edenbox/loganalyser/.gitignore

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+# Created by https://www.gitignore.io/api/python,pycharm
+
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+# End of https://www.gitignore.io/api/python,pycharm

tools/backup.sh

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+#!/usr/bin/env bash
+
+# Contants
+
+readonly LINE="================================================================"
+
+# Script
+
+LOGFILE="<log_path>" # location of the log file to which the output will be sent
+(
+RETRYIN="1h" # time after which the operation will be retried, in case of error
+
+DAYLIMIT=15 # defines limit value for first half of the month snapshot
+MONTHLIMIT=3 # defines number of months that are stored in snapshots
+
+DAY=$(date +'%d') # actual day
+MONTH=$(date +'%m') # actual month
+
+V0=($((10#$MONTH % 10#$MONTHLIMIT))) # mod based value, 1-January, 2-February, March-0, and onwards...
+
+if [ $DAY -lt $DAYLIMIT ]; then V1=0; # 0 for the first half of the month
+else V1=1; # 1 for the second half of the month
+fi
+
+if [ $# -eq 0 ]; then # if there are no args, use default scheduled version
+ VERSION=$V0"-"$V1; # snapshot version number (0..2)-(0..1)
+ else VERSION=$1; # if an arg was provided, use it as version identifier
+fi
+
+DATE=$(date +'%d-%m-%Y') # current date
+AUTH="<auth_URL>" # REST API authenticaton URL
+TOKEN="<token>" # authentication token [URGENT] needs to be updated monthly
+IMAGE="<machine>-Backup-"$VERSION # name of the snapshot to be created
+DESCR="<machine_descr> - Backup - "$DATE # description of the snapshot to be created
+STARTTIME=$(date +'%X %d-%m-%Y') # time at which the snapshot process started
+
+echo $LINE
+echo "Saving image - "$IMAGE
+echo "Starting upload - "$STARTTIME
+
+until snf-mkimage / -u $IMAGE.diskdump -r "$DESCR" \
+-a $AUTH -t $TOKEN \
+--disable-sysprep cleanup-userdata \
+--disable-sysprep cleanup-passwords \
+--force
+
+# --disable-sysprep cleanup-passwords will avoid accounts to be locked and passwords deleted
+# --disable-sysprep cleanup-userdata will avoid user data to be deleted
+# force will overwrite any snapshot with the same name
+
+do
+ echo "Error uploading snapshot"
+ echo "Will retry operation in "$RETRYIN
+ sleep $RETRYIN
+ echo $LINE
+ echo "Restarting - "$(date +'%X %d-%m-%Y')
+ done
+
+ ENDTIME=$(date +'%X %d-%m-%Y') # time at which the snapshot process ended
+ echo "Upload finished - "$ENDTIME
+ echo $LINE
+ echo ""
+ ) |& tee -a "$LOGFILE" # output is both sent to stdout and log file

tools/logrotate/backup

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+/var/log/backup/*.log {
+ daily
+ missingok
+ rotate 4
+ compress
+ notifempty
+ copytruncate
+ dateext
+ dateformat %d-%m-%Y
+}

tools/logrotate/readme.md

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+# Logrotate
+Configuration files of the logrotate utility.
+
+## Description
+Brief outline of the how's and why's of the employed configuration files.
+
+### Backup
+Attempt to rotate the log each day, but only if it is not empty.
+Method used in order to avoid finer grained treatment based on date analysis.
+
+### Update
+Keeps the last 4 weeks of update logs, compressed.
+The log file is rotated weekly.
+
+### Final Notes
+Logrotate allows automatical cleanup of old logs, therefore, avoiding the need
+of manual management of all of the generated files.

tools/logrotate/update

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+/var/log/update/*.log {
+ weekly
+ missingok
+ rotate 4
+ compress
+ notifempty
+ copytruncate
+ dateext
+ dateformat -%m-%Y
+}

tools/manageuser.sh

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+#!/usr/bin/env bash
+
+# CONSTANTS
+readonly PREFIX="eden_"
+
+# Show Usage and exit
+usage ()
+{
+ echo "SYNOPSIS"
+ echo "./"${0##*/}" -{OPTIONS} <username>"
+ echo ""
+ echo "OPTIONS - only one can be used, only the leftmost argument will be used"
+ echo "-c Creates user with <username>, creates and sets up ssh access scheme"
+ echo "-u Creates user with <username> and sets up ssh access with key ./<username>.pub"
+ exit 1
+}
+
+# Create a user, using KEYFILE as ssh key
+createUser()
+{
+ local USER=$1
+ local KEYFILE=$2
+ local USERHOME="/home/"$USER
+ local USERSSH=$USERHOME"/.ssh"
+ adduser $USER --gecos ""
+ chown $USER $KEYFILE
+ mkdir $USERSSH
+ chmod 700 $USERSSH
+ cat $KEYFILE >> $USERSSH/authorizedkeys
+ chmod 600 $USERSSH"/authorizedkeys"
+ chown $USER:$USER $USERSSH"/authorizedkeys"
+ chown $USER:$USER $USERSSH
+}
+
+# Create 2048 RSA-key pair
+createKey()
+{
+ local PREFIX=$PREFIX
+ local USER=$1
+ local KEYNAME=$PREFIX$USER
+ ssh-keygen -t rsa -b 2048 -P "" -C "" -f $KEYNAME
+ mv $KEYNAME $KEYNAME.priv
+ chmod 400 $KEYNAME.priv
+ chmod 444 $KEYNAME.pub
+ echo "Choose a password to encrypt the resulting zip file"
+ zip -o $KEYNAME --encrypt $KEYNAME.pub $KEYNAME.priv
+}
+
+# Delete a user
+delete()
+{
+ local USER=$1
+ deluser --remove-home $USER
+}
+
+#MAIN
+
+# Exit if no args provided
+[ -z "$1" ] && usage;
+
+while getopts c:u:d:h opt;
+ do
+ case "${opt}"
+ in
+ c)
+ USER=$OPTARG
+ KEYFILE=$PREFIX$USER.pub
+ createKey $USER
+ createUser $USER $KEYFILE
+ break;;
+ u)
+ USER=$OPTARG
+ KEYFILE=$PREFIX$USER.pub
+ createUser $USER $KEYFILE
+ break;;
+ d)
+ USER=$OPTARG
+ delete $USER
+ break;;
+ h | ? | *) usage;;
+ esac
+done
+shift $((OPTIND -1))
+
+exit 0