new action module serialconsole

src/linux/common/helpers/alar2/src/action_implementation/serialconsole-impl.sh

@@ -0,0 +1,146 @@
+#!/bin/bash
+
+#
+# serialconsole-impl is responsible to set the configuration for the serialconsole
+# correct in case this is missing in a VM image.
+# It also enables sysreq to allow a reboot from the Portal
+#
+
+enable_sysreq() {
+    if [[ $isRedHat == "true"  ]]; then
+        echo "kernel.sysrq = 1" >> /etc/sysctl.d/90-alar2.conf
+    else
+        echo "kernel.sysrq = 1" >> /etc/sysctl.conf
+    fi
+}
+
+
+serial_fix_suse_redhat (){
+    if [[ "$isRedHat6" == "true" ]]; then
+        echo "Configuring the serialconsole for RedHat 6.x is not implemented"
+        exit 1
+    fi
+
+    grub_file="/etc/default/grub"
+    enable_sysreq
+
+    if [[ -f $grub_file ]]; then
+        sed -i 's/GRUB_TIMEOUT=.*/GRUB_TIMEOUT=30/' $grub_file
+
+	grep -Eq '^GRUB_CMDLINE_LINUX.*' $grub_file
+	if [[ $? -eq 0  ]]; then
+        	sed -i '/GRUB_CMDLINE_LINUX.*/s/"$//; s|GRUB_CMDLINE_LINUX.*|& console=tty1 console=ttyS0,115200n8 earlyprintk=ttyS0,115200"|' $grub_file
+	else
+		echo 'GRUB_CMDLINE_LINUX="console=tty1 console=ttyS0,115200n8 earlyprintk=ttyS0,115200"' >> $grub_file
+	fi
+
+
+        # modify terminal
+        grep -q 'GRUB_TERMINAL' $grub_file
+        if [[ $? -eq 0 ]]; then
+            sed -i 's/GRUB_TERMINAL.*/GRUB_TERMINAL="serial"/' $grub_file
+        else
+            echo 'GRUB_TERMINAL="serial"' >> $grub_file
+        fi
+
+        # modify GRUB serial
+        grep -q 'GRUB_SERIAL_COMMAND' $grub_file
+        if [[ $? -eq 0 ]]; then
+            sed -i 's/GRUB_SERIAL_COMMAND.*/GRUB_SERIAL_COMMAND="serial --speed=9600 --unit=0 --word=8 --parity=no --stop=1"/' $grub_file
+        else
+            echo 'GRUB_SERIAL_COMMAND="serial --speed=9600 --unit=0 --word=8 --parity=no --stop=1"' >> $grub_file
+        fi
+      
+      grep -q 'GRUB_TIMEOUT_STYLE' $grub_file
+      if [[ $? -eq 0 ]]; then
+           sed -i 's/GRUB_TIMEOUT_STYLE.*//' $grub_file
+      fi
+    else
+        
+# file does not exist
+touch $grub_file
+cat $grub_file << EOF
+GRUB_TIMEOUT=30
+GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
+GRUB_DEFAULT=saved
+GRUB_DISABLE_SUBMENU=true
+GRUB_TERMINAL="serial"
+GRUB_CMDLINE_LINUX="console=tty1 console=ttyS0 earlyprintk=ttyS0 rootdelay=300"
+GRUB_DISABLE_RECOVERY="true"
+GRUB_SERIAL_COMMAND="serial --speed=9600 --unit=0 --word=8 --parity=no --stop=1"
+EOF
+    fi
+    # update grub
+    if [[ -d /sys/firmware/efi ]]; then 
+        if [[ $isRedHat == "true" ]]; then
+            grub2-mkconfig -o /boot/efi/EFI/$(grep '^ID=' /etc/os-release | cut -d '"' -f2)/grub.cfg
+        fi    
+    else
+        grub2-mkconfig -o /boot/grub2/grub.cfg
+    fi
+}
+
+# REDHAT/CENTOS PART
+if [[ "$isRedHat" == "true" ]]; then
+    serial_fix_suse_redhat
+fi
+
+# SUSE PART
+if [[ "$isSuse" == "true" ]]; then
+    serial_fix_suse_redhat
+
+fi
+
+# UBUNTU PART
+# if #1
+if [[ "$isUbuntu" == "true" ]]; then
+    grub_file="/etc/default/grub.d/50-cloudimg-settings.cfg"
+    enable_sysreq
+    
+    # if #2
+    if [[ -f $grub_file ]]; then
+        sed -i 's/GRUB_TIMEOUT=.*/GRUB_TIMEOUT=10/' $grub_file
+	grep -Eq '^GRUB_CMDLINE_LINUX.*' $grub_file
+
+    # if #3
+	if [[ $? -eq 0  ]]; then
+        	sed -i '/GRUB_CMDLINE_LINUX.*/s/"$//; s|GRUB_CMDLINE_LINUX.*|& console=tty1 console=ttyS0 earlyprintk=ttyS0"|' $grub_file
+	else
+		echo 'GRUB_CMDLINE_LINUX="console=tty1 console=ttyS0 earlyprintk=ttyS0"' >> $grub_file
+	fi # close if#3
+
+        # modify GRUB serial if required
+        grep -q "GRUB_TERMINAL=serial" $grub_file
+        
+        # if#4
+        if [[ $? -ne 0 ]]; then
+            echo "GRUB_TERMINAL=serial" >>  $grub_file
+        else
+        # make a full replacement
+            sed -i 's/GRUB_SERIAL_COMMAND.*/GRUB_SERIAL_COMMAND="serial --speed=9600 --unit=0 --word=8 --parity=no --stop=1"/' $grub_file
+        fi # close if#4
+    else
+
+# file does not exist
+touch $grub_file
+cat $grub_file << EOF
+# Set the default commandline
+GRUB_CMDLINE_LINUX="console=tty1 console=ttyS0 earlyprintk=ttyS0"
+GRUB_CMDLINE_LINUX_DEFAULT=""
+
+# Set the grub console type
+GRUB_TERMINAL=serial
+
+# Set the serial command
+GRUB_SERIAL_COMMAND="serial --speed=9600 --unit=0 --word=8 --parity=no --stop=1"
+
+# Set the recordfail timeout
+GRUB_RECORDFAIL_TIMEOUT=30
+
+# Wait briefly on grub prompt
+GRUB_TIMEOUT=10
+EOF
+    fi # close if#2
+    # update grub
+    update-grub
+fi # close if#1