This patch adds support to start_ovsdb() function in ovn-ctl to start the
ovn db servers in standby mode. This can be done in the following ways
1. Use parameters --ovn-nb-sync-from-addr and --ovn-sb-sync-from-addr to
set the addresses of the master server.
2. Create files $etcdir/ovnnb-master.conf and $etcdir/ovnsb-master.conf
with the tcp url of the master servers.
If --ovn-nb-sync-from-addr and --ovn-sb-sync-from-addr is used, it will
overwrite the contents in the $etcdir/*.conf and use that server as the
master.
Additional functions to promote a standby server to master and demote
master server to standby mode are also added in this patch
Signed-off-by: Babu Shanmugam <bscha...@redhat.com>
---
ovn/utilities/ovn-ctl | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 55 insertions(+)
diff --git a/ovn/utilities/ovn-ctl b/ovn/utilities/ovn-ctl
index a4a9817..2f2538f 100755
--- a/ovn/utilities/ovn-ctl
+++ b/ovn/utilities/ovn-ctl
@@ -45,6 +45,22 @@ stop_ovsdb () {
fi
}
+promote_ovnsb() {
+ ovs-appctl -t $rundir/ovnsb_db.ctl ovsdb-server/connect-active-ovsdb-server
+}
+
+promote_ovnnb() {
+ ovs-appctl -t $rundir/ovnnb_db.ctl ovsdb-server/connect-active-ovsdb-server
+}
+
+demote_ovnsb() {
+ ovs-appctl -t $rundir/ovnsb_db.ctl
ovsdb-server/disconnect-active-ovsdb-server
+}
+
+demote_ovnnb() {
+ ovs-appctl -t $rundir/ovnnb_db.ctl
ovsdb-server/disconnect-active-ovsdb-server
+}
+
start_ovsdb () {
# Check and eventually start ovsdb-server for Northbound DB
if ! pidfile_is_running $DB_NB_PID; then
@@ -54,6 +70,15 @@ start_ovsdb () {
set "$@" --detach $OVN_NB_LOG --log-file=$OVN_NB_LOGFILE
--remote=punix:$DB_NB_SOCK --remote=ptcp:$DB_NB_PORT:$DB_NB_ADDR
--pidfile=$DB_NB_PID --unixctl=ovnnb_db.ctl
+ ovnnb_master_conf_file="$etcdir/ovnnb-master.conf"
+ if test ! -z $DB_NB_SYNC_FROM_ADDR; then
+ echo "tcp:$DB_NB_SYNC_FROM_ADDR:$DB_NB_SYNC_FROM_PORT" >
$ovnnb_master_conf_file
+ fi
+
+ if test -e $ovnnb_master_conf_file; then
+ set "$@" --sync-from=`cat $ovnnb_master_conf_file`
+ fi
+
$@ $DB_NB_FILE
fi
@@ -64,6 +89,16 @@ start_ovsdb () {
set ovsdb-server
set "$@" --detach $OVN_SB_LOG --log-file=$OVN_SB_LOGFILE
--remote=punix:$DB_SB_SOCK --remote=ptcp:$DB_SB_PORT:$DB_SB_ADDR
--pidfile=$DB_SB_PID --unixctl=ovnsb_db.ctl
+
+ ovnsb_master_conf_file="$etcdir/ovnsb-master.conf"
+ if test ! -z $DB_SB_SYNC_FROM_ADDR; then
+ echo "tcp:$DB_SB_SYNC_FROM_ADDR:$DB_SB_SYNC_FROM_PORT" >
$ovnsb_master_conf_file
+ fi
+
+ if test -e $ovnsb_master_conf_file; then
+ set "$@" --sync-from=`cat $ovnsb_master_conf_file`
+ fi
+
$@ $DB_SB_FILE
fi
}
@@ -176,12 +211,16 @@ set_defaults () {
DB_NB_FILE=$dbdir/ovnnb_db.db
DB_NB_ADDR=0.0.0.0
DB_NB_PORT=6641
+ DB_NB_SYNC_FROM_ADDR=
+ DB_NB_SYNC_FROM_PORT=6641
DB_SB_SOCK=$rundir/ovnsb_db.sock
DB_SB_PID=$rundir/ovnsb_db.pid
DB_SB_FILE=$dbdir/ovnsb_db.db
DB_SB_ADDR=0.0.0.0
DB_SB_PORT=6642
+ DB_SB_SYNC_FROM_ADDR=
+ DB_SB_SYNC_FROM_PORT=6642
DB_NB_SCHEMA=$datadir/ovn-nb.ovsschema
DB_SB_SCHEMA=$datadir/ovn-sb.ovsschema
@@ -272,6 +311,10 @@ File location options:
--db-sb-port=PORT OVN Southbound db ptcp port (default: $DB_SB_PORT)
--ovn-nb-logfile=FILE OVN Northbound log file (default: $OVN_NB_LOGFILE)
--ovn-sb-logfile=FILE OVN Southbound log file (default: $OVN_SB_LOGFILE)
+ --db-nb-sync-from-addr=ADDR OVN Northbound master db tcp address (default:
$DB_NB_SYNC_FROM_ADDR)
+ --db-nb-sync-from-port=PORT OVN Northdbound master db tcp port (default:
$DB_NB_SYNC_FROM_PORT)
+ --db-sb-sync-from-addr=ADDR OVN Southbound master db tcp address (default:
$DB_SB_SYNC_FROM_ADDR)
+ --db-sb-sync-from-port=ADDR OVN Southbound master db tcp port (default:
$DB_SB_SYNC_FROM_PORT)
Default directories with "configure" option and environment variable override:
logs: /usr/local/var/log/openvswitch (--with-logdir, OVS_LOGDIR)
@@ -377,6 +420,18 @@ case $command in
status_controller_vtep)
daemon_status ovn-controller-vtep || exit 1
;;
+ promote_ovnnb)
+ promote_ovnnb
+ ;;
+ promote_ovnsb)
+ promote_ovnsb
+ ;;
+ demote_ovnnb)
+ demote_ovnnb
+ ;;
+ demote_ovnsb)
+ demote_ovnsb
+ ;;
help)
usage
;;
--
2.5.5
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