33398a38aa
add new package keepalived-sync to synchronize files and data between master and backup node. The master node uses SSH over rsync to send and the backup node will use inotifywatch to watch received files. The master node can track rsync.sh script to send configuration file on a backup node based on the vrrp_script configuration of the same script. The backup node will have a keepalived-inotify service, which would watch for newly received files and it would call hotplug event. Each service can keep its respective script under the keepalived hotplug directory and executes commands to stop, start service or update any config in real-time. Whenever a switchover will happen, the backup node would have the latest config and data files from the master node. Hotplug events can be used to apply config when files are received. Signed-off-by: Jaymin Patel <jem.patel@gmail.com>
65 lines
1.4 KiB
Bash
65 lines
1.4 KiB
Bash
#!/bin/sh /etc/rc.common
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START=99
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USE_PROCD=1
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PROG="/usr/bin/keepalived-rsync-inotify"
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KEEPALIVED_USER=keepalived
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KEEPALIVED_HOME=$(awk -F: "/^$KEEPALIVED_USER/{print \$6}" /etc/passwd)
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start_instance() {
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local cfg=$1
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local vrrp_instance=$2
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local peer=$3
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config_get name $cfg name
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[ -z "$name" ] && return
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[ "$name" != "$peer" ] && return
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config_get sync $cfg sync 0
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[ "$sync" = "0" ] && return
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config_get sync_mode $cfg sync_mode
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[ "$sync_mode" != "receive" ] && return
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config_get sync_dir $cfg sync_dir $KEEPALIVED_HOME
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[ -z "$sync_dir" ] && return
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[ ! -d "$sync_dir" ] && mkdir -m 755 -p "$sync_dir"
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procd_open_instance "$name"
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procd_set_param command /bin/sh "$PROG" "$vrrp_instance" "$name" "$sync_dir"
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procd_set_param pidfile /var/run/keepalived-inotify-$name.pid
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procd_close_instance
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}
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process_unicast_peer() {
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local peer=$1
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local vrrp_instance=$2
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config_foreach start_instance peer "$vrrp_instance" "$peer"
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}
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process_vrrp_instance() {
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local cfg=$1
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local peer_instance=$2
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local name unicast_peer
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config_get name $cfg name
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config_get unicast_peer $cfg unicast_peer
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if [ -n "$peer_instance" ]; then
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list_contains unicast_peer "$peer_instance" || return
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process_unicast_peer "$peer_instance" "$name"
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else
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config_list_foreach $cfg unicast_peer process_unicast_peer "$name"
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fi
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}
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start_service() {
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local peer_instance=$1
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config_load keepalived
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config_foreach process_vrrp_instance vrrp_instance "$peer_instance"
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}
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