scripts/ovirt-config-logging

   1 #!/bin/bash
   2 #
   3 # Configures the rsyslog daemon.
   4 # Source functions library
   5 . /etc/init.d/functions
   6 . /usr/libexec/ovirt-functions
   7
   8 trap '__st=$?; stop_log; exit $__st' 0
   9 trap 'exit $?' 1 2 13 15
  10
  11 if ! is_local_storage_configured; then
  12     printf "Local storage must be configured prior to configuring the logging system.\n"
  13     exit 99
  14 fi
  15
  16 RSYSLOG_FILE="/etc/rsyslog.conf"
  17
  18 # Creates the rsyslog file based on the following inputs
  19 # $1 ipaddress of remote syslog server
  20 # $2 port of remote syslog server
  21 # $3 protocol (tcp or udp)
  22 # TODO implement and use Augeas lens
  23 function ovirt_rsyslog {
  24
  25 if [ "$3" = "tcp" ]; then
  26     DELIM="@@"
  27 else DELIM="@"
  28 fi
  29
  30 cat > $RSYSLOG_FILE << EOF
  31 #ovirt rsyslog config file
  32
  33 #### MODULES ####
  34 \$ModLoad imuxsock.so    # provides support for local system logging (e.g. via logger command)
  35 \$ModLoad imklog.so      # provides kernel logging support (previously done by rklogd)
  36
  37 #### GLOBAL DIRECTIVES ####
  38 # Use default timestamp format
  39 \$ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat
  40
  41 #### RULES ####
  42 # Log anything (except mail) of level info or higher.
  43 # Don't log private authentication messages!
  44 *.info;mail.none;authpriv.none;cron.none                /var/log/messages
  45
  46 # The authpriv file has restricted access.
  47 authpriv.*                                              /var/log/secure
  48
  49 # Log all the mail messages in one place.
  50 mail.*                                                  -/var/log/maillog
  51
  52 # Log cron stuff
  53 cron.*                                                  /var/log/cron
  54
  55 # Everybody gets emergency messages
  56 *.emerg                                                 *
  57
  58 # Save news errors of level crit and higher in a special file.
  59 uucp,news.crit                                          /var/log/spooler
  60
  61 # Save boot messages also to boot.log
  62 local7.*                                                /var/log/boot.log
  63
  64 \$WorkDirectory /var/spool/rsyslog
  65 \$ActionQueueFileName ovirtNode
  66 \$ActionQueueMaxDiskSpace 10m
  67 \$ActionQueueSaveOnShutdown on
  68 \$ActionQueueType LinkedList
  69 \$ActionResumeRetryCount -1
  70 *.* $DELIM$1:$2
  71 EOF
  72
  73 start_log
  74 /sbin/service rsyslog restart
  75 stop_log
  76 }
  77
  78 function is_numeric {
  79     printf "$1" | grep -q -E '^[0-9]+$'
  80 }
  81
  82 function prompt_user {
  83     while true ; do
  84         max_log_size="1024"
  85         syslog_server_ip=""
  86         syslog_server_port=""
  87
  88         while true; do
  89                 printf "\n"
  90             read -p "What is the max size, in kilobytes, for local log files (def. ${max_log_size}k)? "
  91
  92             if [ -n "$REPLY" ]; then
  93                 r=$REPLY
  94                 if [[ $r =~ ^[0-9]+$ ]] && [[ $r -gt 0 ]]; then
  95                     max_log_size=$r
  96                     printf "\nMaximum logging size will be ${max_log_size}k.\n"
  97                     break
  98                 else
  99                     printf "\nInvalid input.\n"
 100                 fi
 101             else
 102                 printf "\nLeaving log size as ${max_log_size}k.\n"
 103                 break
 104             fi
 105         done
 106
 107         printf "\n"
 108         read -p "What is the IP address for the syslog server, hit Enter to skip? "
 109         if [ -n "$REPLY" ]; then
 110             syslog_server_ip=$REPLY
 111             while true; do
 112                 read -p "Please enter the remote logging port used:  "
 113                 r=$REPLY
 114                 if [ -n "$r" ]; then
 115                     if [[ $r =~ ^[0-9]+$ ]] && [[ $r -gt 0 ]]; then
 116                             syslog_server_port=$REPLY
 117                             break
 118                     else
 119                         printf "Invalid port.\n"
 120                     fi
 121                 fi
 122             done
 123
 124             printf "\n"
 125             while true; do
 126                 read -p "Remote logging uses [t]cp or [u]dp? "
 127                 r=$(echo $REPLY|tr '[[:lower:]]' '[[:upper:]]')
 128                 if [ "$r" == "T" ]; then syslog_server_protocol="tcp"; break; fi
 129                 if [ "$r" == "U" ]; then syslog_server_protocol="udp"; break; fi
 130                 # else
 131                         printf "Invalid input.\n"
 132             done
 133         else
 134             printf "\nDisabling remote logging.\n"
 135         fi
 136
 137         printf "\n"
 138         printf "\nLogging will be configured as follows:"
 139         printf "\n======================================"
 140         printf "\n Max Logfile Size: $max_log_size"
 141         if [ -n "$syslog_server_ip" ]; then
 142             printf "\n    Remote Server: $syslog_server_ip"
 143             printf "\n      Remote Port: $syslog_server_port"
 144             printf "\n Logging Protocol: $syslog_server_protocol"
 145         fi
 146         printf "\n"
 147         printf "\n"
 148         while true; do
 149             ask_yes_or_no "Is this correct ([Y]es/[N]o/[A]bort)?" true true
 150             case $? in
 151                 0)
 152                     printf "\nSaving configuration.\n"
 153                     if [[ -n "$syslog_server_ip" ]] &&
 154                         [[ -n "$syslog_server_port" ]] &&
 155                         [[ -n "$syslog_server_protocol" ]]; then
 156                         ovirt_rsyslog $syslog_server_ip \
 157                             $syslog_server_port \
 158                             $syslog_server_protocol
 159                     fi
 160                     sed -c -i -e "s/size.*/size ${max_log_size}k/" \
 161                         /etc/logrotate.d/ovirt-node
 162                     return
 163                     ;;
 164                 1)
 165                     printf "\nRestarting logging configuration.\n"
 166                     break
 167                     ;;
 168                 2)
 169                     printf "\nAborting logging configuration.\n"
 170                     return
 171                     ;;
 172             esac
 173         done
 174     done
 175 }
 176
 177 function ovirt_netconsole {
 178     augtool <<EOF
 179 set /files/etc/sysconfig/netconsole/SYSLOGADDR $OVIRT_NETCONSOLE_SERVER
 180 set /files/etc/sysconfig/netconsole/SYSLOGPORT $OVIRT_NETCONSOLE_PORT
 181 EOF
 182     ovirt_store_config /etc/sysconfig/netconsole
 183 }
 184 # AUTO for auto-install
 185 if [ "$1" = "AUTO" ]; then
 186     if [ -z "$OVIRT_SYSLOG_SERVER" -o -z "$OVIRT_SYSLOG_PORT" ]; then
 187         printf "\nAttempting to locate remote syslog server..."
 188         find_srv syslog udp
 189         if [ -n "$SRV_HOST" -a -n "$SRV_PORT" ]; then
 190             printf "found! Using syslog server '$SRV_HOST:$SRV_PORT'.\n"
 191             ovirt_rsyslog $SRV_HOST $SRV_PORT udp
 192         else
 193             printf "not found!\n"
 194         fi
 195     else
 196         printf "\nUsing default syslog server '$OVIRT_SYSLOG_SERVER:$OVIRT_SYSLOG_PORT'.\n"
 197         ovirt_rsyslog $OVIRT_SYSLOG_SERVER $OVIRT_SYSLOG_PORT udp
 198     fi
 199     if [ -n "$OVIRT_NETCONSOLE_SERVER" -a -n "$OVIRT_NETCONSOLE_PORT" ]; then
 200         printf "\nConfiguring netconsole server..."
 201         ovirt_netconsole
 202     fi
 203 else
 204     printf "\n\n Logging Configuration\n\n"
 205     prompt_user
 206 fi