From: Babu Shanmugam <bscha...@redhat.com>
This patch adds support to start_ovsdb() function in ovn-ctl to start the
ovn db servers in backup 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 active server.
2. Create files $etcdir/ovnnb-active.conf and $etcdir/ovnsb-active.conf
with the tcp url of the active servers.
Additional functions to promote a backup server to active and demote
active server to backup mode are also added in this patch
One can optionally set the DB parameters for northd in
$etcdir/ovn-northd-db-params.conf. For example,
--ovnnb-db=tcp:172.16.247.230:6641 --ovnsb-db=tcp:172.16.247.230:6642
The parameters will be used as is, by start_northd(). If this file exists,
start_northd() will not start the DB servers even if $OVN_MANAGE_OVSDB is
'yes'.
Signed-off-by: Babu Shanmugam <bscha...@redhat.com>
---
ovn/utilities/ovn-ctl | 173 ++++++++++++++++++++++++++++++++++++++++++--------
1 file changed, 148 insertions(+), 25 deletions(-)
diff --git a/ovn/utilities/ovn-ctl b/ovn/utilities/ovn-ctl
index 07bff8a..1c1687f 100755
--- a/ovn/utilities/ovn-ctl
+++ b/ovn/utilities/ovn-ctl
@@ -26,6 +26,9 @@ for dir in "$sbindir" "$bindir" /sbin /bin /usr/sbin
/usr/bin; do
done
+ovnnb_active_conf_file="$etcdir/ovnnb-active.conf"
+ovnsb_active_conf_file="$etcdir/ovnsb-active.conf"
+ovn_northd_db_conf_file="$etcdir/ovn-northd-db-params.conf"
## ----- ##
## start ##
## ----- ##
@@ -45,6 +48,44 @@ stop_ovsdb () {
fi
}
+demote_ovnnb() {
+ if test ! -z "$DB_NB_SYNC_FROM_ADDR"; then
+ echo "tcp:$DB_NB_SYNC_FROM_ADDR:$DB_NB_SYNC_FROM_PORT" >
$ovnnb_active_conf_file
+ fi
+
+ if test -e $ovnnb_active_conf_file; then
+ ovs-appctl -t $rundir/ovnnb_db.ctl
ovsdb-server/set-active-ovsdb-server `cat $ovnnb_active_conf_file`
+ ovs-appctl -t $rundir/ovnnb_db.ctl
ovsdb-server/connect-active-ovsdb-server
+ else
+ echo >&2 "$0: active server details not set"
+ exit 1
+ fi
+}
+
+demote_ovnsb() {
+ if test ! -z "$DB_SB_SYNC_FROM_ADDR"; then
+ echo "tcp:$DB_SB_SYNC_FROM_ADDR:$DB_SB_SYNC_FROM_PORT" >
$ovnsb_active_conf_file
+ fi
+
+ if test -e $ovnsb_active_conf_file; then
+ ovs-appctl -t $rundir/ovnsb_db.ctl
ovsdb-server/set-active-ovsdb-server `cat $ovnsb_active_conf_file`
+ ovs-appctl -t $rundir/ovnsb_db.ctl
ovsdb-server/connect-active-ovsdb-server
+ else
+ echo >&2 "$0: active server details not set"
+ exit 1
+ fi
+}
+
+promote_ovnnb() {
+ rm -f $ovnnb_active_conf_file
+ ovs-appctl -t $rundir/ovnnb_db.ctl
ovsdb-server/disconnect-active-ovsdb-server
+}
+
+promote_ovnsb() {
+ rm -f $ovnsb_active_conf_file
+ ovs-appctl -t $rundir/ovnsb_db.ctl
ovsdb-server/disconnect-active-ovsdb-server
+}
+
start_ovsdb () {
# Check and eventually start ovsdb-server for Northbound DB
if ! pidfile_is_running $DB_NB_PID; then
@@ -52,7 +93,20 @@ start_ovsdb () {
set ovsdb-server
- set "$@" --detach --monitor $OVN_NB_LOG --log-file=$OVN_NB_LOGFILE
--remote=punix:$DB_NB_SOCK --remote=ptcp:$DB_NB_PORT:$DB_NB_ADDR
--pidfile=$DB_NB_PID --unixctl=ovnnb_db.ctl
+ set "$@" --detach --monitor $OVN_NB_LOG \
+ --log-file=$OVN_NB_LOGFILE \
+ --remote=punix:$DB_NB_SOCK \
+ --remote=ptcp:$DB_NB_PORT:$DB_NB_ADDR \
+ --pidfile=$DB_NB_PID \
+ --unixctl=ovnnb_db.ctl
+
+ if test ! -z "$DB_NB_SYNC_FROM_ADDR"; then
+ echo "tcp:$DB_NB_SYNC_FROM_ADDR:$DB_NB_SYNC_FROM_PORT" >
$ovnnb_active_conf_file
+ fi
+
+ if test -e $ovnnb_active_conf_file; then
+ set "$@" --sync-from=`cat $ovnnb_active_conf_file`
+ fi
$@ $DB_NB_FILE
fi
@@ -63,11 +117,45 @@ start_ovsdb () {
set ovsdb-server
- set "$@" --detach --monitor $OVN_SB_LOG --log-file=$OVN_SB_LOGFILE
--remote=punix:$DB_SB_SOCK --remote=ptcp:$DB_SB_PORT:$DB_SB_ADDR
--pidfile=$DB_SB_PID --unixctl=ovnsb_db.ctl
+ set "$@" --detach --monitor $OVN_SB_LOG \
+ --log-file=$OVN_SB_LOGFILE \
+ --remote=punix:$DB_SB_SOCK \
+ --remote=ptcp:$DB_SB_PORT:$DB_SB_ADDR \
+ --pidfile=$DB_SB_PID \
+ --unixctl=ovnsb_db.ctl
+
+ if test ! -z "$DB_SB_SYNC_FROM_ADDR"; then
+ echo "tcp:$DB_SB_SYNC_FROM_ADDR:$DB_SB_SYNC_FROM_PORT" >
$ovnsb_active_conf_file
+ fi
+
+ if test -e $ovnsb_active_conf_file; then
+ set "$@" --sync-from=`cat $ovnsb_active_conf_file`
+ fi
+
$@ $DB_SB_FILE
fi
}
+sync_status() {
+ ovs-appctl -t $rundir/ovn${1}_db.ctl ovsdb-server/sync-status | awk
'{if(NR==1) print $2}'
+}
+
+status_ovnnb() {
+ if ! pidfile_is_running $DB_NB_PID; then
+ echo "not-running"
+ else
+ echo "running/$(sync_status nb)"
+ fi
+}
+
+status_ovnsb() {
+ if ! pidfile_is_running $DB_SB_PID; then
+ echo "not-running"
+ else
+ echo "running/$(sync_status sb)"
+ fi
+}
+
status_ovsdb () {
if ! pidfile_is_running $DB_NB_PID; then
log_success_msg "OVN Northbound DB is not running"
@@ -83,29 +171,36 @@ status_ovsdb () {
}
start_northd () {
- if test X"$OVN_MANAGE_OVSDB" = Xyes; then
- start_ovsdb
- fi
+ if [ ! -e $ovn_northd_db_conf_file ]; then
+ if test X"$OVN_MANAGE_OVSDB" = Xyes; then
+ start_ovsdb
+ fi
+
+ if ! pidfile_is_running $DB_NB_PID; then
+ log_failure_msg "OVN Northbound DB is not running"
+ exit
+ fi
+ if ! pidfile_is_running $DB_SB_PID; then
+ log_failure_msg "OVN Southbound DB is not running"
+ exit
+ fi
+ ovn_northd_params="--ovnnb-db=unix:$DB_NB_SOCK
--ovnsb-db=unix:$DB_SB_SOCK"
+ else
+ ovn_northd_params="`cat $ovn_northd_db_conf_file`"
+ fi
- if ! pidfile_is_running $DB_NB_PID; then
- log_failure_msg "OVN Northbound DB is not running"
- exit
- fi
- if ! pidfile_is_running $DB_SB_PID; then
- log_failure_msg "OVN Southbound DB is not running"
- exit
- fi
+ if daemon_is_running ovn-northd; then
+ log_success_msg "ovn-northd is already running"
+ else
+ set ovn-northd
+ if test X"$OVN_NORTHD_LOGFILE" != X; then
+ set "$@" --log-file=$OVN_NORTHD_LOGFILE
+ fi
- if daemon_is_running ovn-northd; then
- log_success_msg "ovn-northd is already running"
- else
- set ovn-northd
- if test X"$OVN_NORTHD_LOGFILE" != X; then
- set "$@" --log-file=$OVN_NORTHD_LOGFILE
- fi
- set "$@" $OVN_NORTHD_LOG --ovnnb-db=unix:$DB_NB_SOCK
--ovnsb-db=unix:$DB_SB_SOCK
- OVS_RUNDIR=${OVN_RUNDIR} start_daemon "$OVN_NORTHD_PRIORITY"
"$OVN_NORTHD_WRAPPER" "$@"
- fi
+ set "$@" $OVN_NORTHD_LOG $ovn_northd_params
+
+ OVS_RUNDIR=${OVN_RUNDIR} start_daemon "$OVN_NORTHD_PRIORITY"
"$OVN_NORTHD_WRAPPER" "$@"
+ fi
}
start_controller () {
@@ -127,8 +222,10 @@ start_controller_vtep () {
stop_northd () {
OVS_RUNDIR=${OVN_RUNDIR} stop_daemon ovn-northd
- if test X"$OVN_MANAGE_OVSDB" = Xyes; then
- stop_ovsdb
+ if [ ! -e $ovn_northd_db_conf_file ]; then
+ if test X"$OVN_MANAGE_OVSDB" = Xyes; then
+ stop_ovsdb
+ fi
fi
}
@@ -176,12 +273,16 @@ 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 +373,10 @@ 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 active db tcp address (default:
$DB_NB_SYNC_FROM_ADDR)
+ --db-nb-sync-from-port=PORT OVN Northdbound active db tcp port (default:
$DB_NB_SYNC_FROM_PORT)
+ --db-sb-sync-from-addr=ADDR OVN Southbound active db tcp address (default:
$DB_SB_SYNC_FROM_ADDR)
+ --db-sb-sync-from-port=ADDR OVN Southbound active 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 +482,24 @@ 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
+ ;;
+ status_ovnnb)
+ status_ovnnb
+ ;;
+ status_ovnsb)
+ status_ovnsb
+ ;;
help)
usage
;;
--
1.9.1
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