kdump-lib-initramfs: merge definitions for default ssh key

There are currently three identical definitions for the default ssh key.
Combine them into one in kdump-lib-initramfs.sh.

Signed-off-by: Philipp Rudo <prudo@redhat.com>
Reviewed-by: Tao Liu <ltao@redhat.com>
Reviewed-by: Coiby Xu <coxu@redhat.com>

dracut-kdump.sh

@@ -22,7 +22,7 @@ FAILURE_ACTION="systemctl reboot -f"
 DATEDIR=$(date +%Y-%m-%d-%T)
 HOST_IP='127.0.0.1'
 DUMP_INSTRUCTION=""
-SSH_KEY_LOCATION="/root/.ssh/kdump_id_rsa"
+SSH_KEY_LOCATION=$DEFAULT_SSHKEY
 DD_BLKSIZE=512
 FINAL_ACTION="systemctl reboot -f"
 KDUMP_PRE=""

kdump-lib-initramfs.sh

@@ -4,6 +4,7 @@
 # not be the default shell. Any code added must be POSIX compliant.
 
 DEFAULT_PATH="/var/crash/"
+DEFAULT_SSHKEY="/root/.ssh/kdump_id_rsa"
 KDUMP_CONFIG_FILE="/etc/kdump.conf"
 FENCE_KDUMP_CONFIG_FILE="/etc/sysconfig/fence_kdump"
 FENCE_KDUMP_SEND="/usr/libexec/fence_kdump_send"

kdumpctl

@@ -10,7 +10,7 @@ MKDUMPRD="/sbin/mkdumprd -f"
 MKFADUMPRD="/sbin/mkfadumprd"
 DRACUT_MODULES_FILE="/usr/lib/dracut/modules.txt"
 SAVE_PATH=/var/crash
-SSH_KEY_LOCATION="/root/.ssh/kdump_id_rsa"
+SSH_KEY_LOCATION=$DEFAULT_SSHKEY
 INITRD_CHECKSUM_LOCATION="/boot/.fadump_initrd_checksum"
 DUMP_TARGET=""
 DEFAULT_INITRD=""

mkdumprd

@@ -22,7 +22,7 @@ if ! dlog_init; then
 	exit 1
 fi
 
-SSH_KEY_LOCATION="/root/.ssh/kdump_id_rsa"
+SSH_KEY_LOCATION=$DEFAULT_SSHKEY
 SAVE_PATH=$(get_save_path)
 OVERRIDE_RESETTABLE=0