[ovs-dev] [PATCH ovn 1/4] Add support for using OVN specific rundirs

Mark Michelson mmichels at redhat.com
Fri Aug 16 17:14:40 UTC 2019


On 8/13/19 12:27 PM, nusiddiq at redhat.com wrote:
> From: Numan Siddique <nusiddiq at redhat.com>
> 
> Until now, OVN uses the openvswitch rundirs (rundir, logdir, etcdir).
> The commit [1] changed the package name from openvswitch to ovn, but
> it didn't take into the account the effects of it. When "make install"
> is run ovn-ctl utility is copied to /usr/local/share/ovn/scripts folder.
> ovn-ctl depends on 'ovs-lib' and it is not present in this scripts foler.
> Because of which we cannot start OVN services using ovn-ctl.
> 
> This patch addresses all these issues. It changes the rundir to
> ovn specific ones. (i.e /usr/local/var/run/ovn, /usr/local/var/log/ovn,
> /usr/local/etc/ovn with default configuration).
> 
> [1] - 7795e0e28dce("Change the package name from openvswitch to ovn in AC_INIT()")
> 
> Tested:by: Dumitru Ceara <dceara at redhat.com>
> Signed-off-by: Numan Siddique <nusiddiq at redhat.com>
> ---
>   Documentation/intro/install/general.rst |  30 ++--
>   Makefile.am                             |   5 +
>   configure.ac                            |   1 +
>   controller/ovn-controller.c             |   4 +-
>   lib/.gitignore                          |   1 +
>   lib/automake.mk                         |  22 ++-
>   lib/ovn-dirs.c.in                       | 112 +++++++++++++
>   lib/ovn-dirs.h                          |  35 ++++
>   lib/ovn-util.c                          |  24 ++-
>   lib/ovn-util.h                          |   1 +
>   m4/openvswitch.m4                       |  11 ++
>   northd/ovn-northd.c                     |   9 +-
>   tests/ovs-macros.at                     |   1 +
>   tutorial/ovs-sandbox                    |   1 +
>   utilities/automake.mk                   |   5 +
>   utilities/ovn-ctl                       |  71 +++++----
>   utilities/ovn-ctl.8.xml                 |  12 +-
>   utilities/ovn-lib.in                    | 204 ++++++++++++++++++++++++
>   18 files changed, 494 insertions(+), 55 deletions(-)
>   create mode 100644 lib/ovn-dirs.c.in
>   create mode 100644 lib/ovn-dirs.h
>   create mode 100644 utilities/ovn-lib.in
> 
> diff --git a/Documentation/intro/install/general.rst b/Documentation/intro/install/general.rst
> index 99d8fec04..4cc9c4c3a 100644
> --- a/Documentation/intro/install/general.rst
> +++ b/Documentation/intro/install/general.rst
> @@ -153,17 +153,17 @@ invoke configure without any arguments. For example::
>   
>       $ ./configure
>   
> -By default all files are installed under ``/usr/local``. OVN and Open vSwitch
> -also expects to find its database in ``/usr/local/etc/openvswitch`` by default.
> +By default all files are installed under ``/usr/local``. OVN expects to find
> +its database in ``/usr/local/etc/ovn`` by default.
>   If you want to install all files into, e.g., ``/usr`` and ``/var`` instead of
> -``/usr/local`` and ``/usr/local/var`` and expect to use ``/etc/openvswitch`` as
> +``/usr/local`` and ``/usr/local/var`` and expect to use ``/etc/ovn`` as
>   the default database directory, add options as shown here::
>   
>       $ ./configure --prefix=/usr --localstatedir=/var --sysconfdir=/etc
>   
>   .. note::
>   
> -  Open vSwitch and OVN installed with packages like .rpm (e.g. via
> +  OVN installed with packages like .rpm (e.g. via
>     ``yum install`` or ``rpm -ivh``) and .deb (e.g. via
>     ``apt-get install`` or ``dpkg -i``) use the above configure options.
>   
> @@ -319,9 +319,13 @@ and stopping ovn-northd, ovn-controller and ovsdb-servers. After installation,
>   the daemons can be started by using the ovn-ctl utility.  This will take care
>   to setup initial conditions, and start the daemons in the correct order.
>   The ovn-ctl utility is located in '$(pkgdatadir)/scripts', and defaults to
> -'/usr/local/share/openvswitch/scripts'.  An example after install might be::
> +'/usr/local/share/ovn/scripts'.  ovn-ctl utility requires the 'ovs-lib'
> +helper shell script which is present in '/usr/local/share/openvswitch/scripts'.
> +So invoking ovn-ctl as "./ovn-ctl" will fail.
>   
> -    $ export PATH=$PATH:/usr/local/share/openvswitch/scripts
> +An example after install might be::
> +
> +    $ export PATH=$PATH:/usr/local/share/ovn/scripts
>       $ ovn-ctl start_northd
>       $ ovn-ctl start_controller
>   
> @@ -331,7 +335,7 @@ Starting OVN Central services
>   OVN central services includes ovn-northd, Northbound and
>   Southbound ovsdb-server.
>   
> -    $ export PATH=$PATH:/usr/local/share/openvswitch/scripts
> +    $ export PATH=$PATH:/usr/local/share/ovn/scripts
>       $ ovn-ctl start_northd
>   
>   Refer to ovn-ctl(8) for more information and the supported options.
> @@ -341,23 +345,23 @@ Before starting ovn-northd you need to start OVN Northbound and Southbound
>   ovsdb-servers. Before ovsdb-servers can be started,
>   configure the Northbound and Southbound databases::
>   
> -       $ mkdir -p /usr/local/etc/openvswitch
> -       $ ovsdb-tool create /usr/local/etc/openvswitch/ovnnb_db.db \
> +       $ mkdir -p /usr/local/etc/ovn
> +       $ ovsdb-tool create /usr/local/etc/ovn/ovnnb_db.db \
>            ovn-nb.ovsschema
> -       $ ovsdb-tool create /usr/local/etc/openvswitch/ovnsb_db.db \
> +       $ ovsdb-tool create /usr/local/etc/ovn/ovnsb_db.db \
>            ovn-sb.ovsschema
>   
>   Configure ovsdb-servers to use databases created above, to listen on a Unix
>   domain socket and to use the SSL configuration in the database::
>   
> -   $ mkdir -p /usr/local/var/run/openvswitch
> -   $ ovsdb-server --remote=punix:/usr/local/var/run/openvswitch/ovnnb_db.sock \
> +   $ mkdir -p /usr/local/var/run/ovn
> +   $ ovsdb-server --remote=punix:/usr/local/var/run/ovn/ovnnb_db.sock \
>           --remote=db:OVN_Northbound,NB_Global,connections \
>           --private-key=db:OVN_Northbound,SSL,private_key \
>           --certificate=db:OVN_Northbound,SSL,certificate \
>           --bootstrap-ca-cert=db:OVN_Northbound,SSL,ca_cert \
>           --pidfile --detach --log-file
> -   $ovsdb-server --remote=punix:/usr/local/var/run/openvswitch/ovnsb_db.sock \
> +   $ovsdb-server --remote=punix:/usr/local/var/run/ovn/ovnsb_db.sock \
>           --remote=db:OVN_Southbound,SB_Global,connections \
>           --private-key=db:OVN_Southbound,SSL,private_key \
>           --certificate=db:OVN_Southbound,SSL,certificate \
> diff --git a/Makefile.am b/Makefile.am
> index f886a8e63..6447e348b 100644
> --- a/Makefile.am
> +++ b/Makefile.am
> @@ -177,6 +177,7 @@ SUFFIXES += .in
>   	    -e 's,[@]DBDIR[@],$(DBDIR),g' \
>   	    -e 's,[@]PYTHON[@],$(PYTHON),g' \
>   	    -e 's,[@]RUNDIR[@],$(RUNDIR),g' \
> +	    -e 's,[@]OVN_RUNDIR[@],$(OVN_RUNDIR),g' \

Same here.

>   	    -e 's,[@]VERSION[@],$(VERSION),g' \
>   	    -e 's,[@]localstatedir[@],$(localstatedir),g' \
>   	    -e 's,[@]pkgdatadir[@],$(pkgdatadir),g' \
> @@ -202,6 +203,7 @@ SUFFIXES += .xml
>   	  DBDIR='$(DBDIR)' \
>   	  PYTHON='$(PYTHON)' \
>   	  RUNDIR='$(RUNDIR)' \
> +	  OVN_RUNDIR='$(OVN_RUNDIR)' \
>   	  VERSION='$(VERSION)' \
>   	  localstatedir='$(localstatedir)' \
>   	  pkgdatadir='$(pkgdatadir)' \
> @@ -502,6 +504,9 @@ ALL_LOCAL += ovn-sb.ovsschema.stamp
>   ovn-sb.ovsschema.stamp: ovn-sb.ovsschema
>   	$(srcdir)/build-aux/cksum-schema-check $? $@
>   
> +pkgdata_DATA += ovn-nb.ovsschema
> +pkgdata_DATA += ovn-sb.ovsschema
> +
>   CLEANFILES += ovn-sb.ovsschema.stamp
>   
>   include Documentation/automake.mk
> diff --git a/configure.ac b/configure.ac
> index 8a32d3a18..c74b17a1d 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -123,6 +123,7 @@ AC_CHECK_HEADERS([net/if_mib.h], [], [], [[#include <sys/types.h>
>   
>   OVS_CHECK_PKIDIR
>   OVS_CHECK_RUNDIR
> +OVN_CHECK_RUNDIR
>   OVS_CHECK_DBDIR
>   OVS_CHECK_BACKTRACE
>   OVS_CHECK_PERF_EVENT
> diff --git a/controller/ovn-controller.c b/controller/ovn-controller.c
> index 86f29accf..e27b56b2b 100644
> --- a/controller/ovn-controller.c
> +++ b/controller/ovn-controller.c
> @@ -1715,7 +1715,9 @@ main(int argc, char *argv[])
>   
>       daemonize_start(false);
>   
> -    retval = unixctl_server_create(NULL, &unixctl);
> +    char *abs_unixctl_path = get_abs_unix_ctl_path();
> +    retval = unixctl_server_create(abs_unixctl_path, &unixctl);
> +    free(abs_unixctl_path);
>       if (retval) {
>           exit(EXIT_FAILURE);
>       }
> diff --git a/lib/.gitignore b/lib/.gitignore
> index a80a1bce1..3eed4588b 100644
> --- a/lib/.gitignore
> +++ b/lib/.gitignore
> @@ -5,3 +5,4 @@
>   /ovn-sb-idl.c
>   /ovn-sb-idl.h
>   /ovn-sb-idl.ovsidl
> +/ovn-dirs.c
> diff --git a/lib/automake.mk b/lib/automake.mk
> index 8e7a1a937..2ee14a261 100644
> --- a/lib/automake.mk
> +++ b/lib/automake.mk
> @@ -9,6 +9,7 @@ lib_libovn_la_SOURCES = \
>   	lib/actions.c \
>   	lib/chassis-index.c \
>   	lib/chassis-index.h \
> +	lib/ovn-dirs.h \
>   	lib/expr.c \
>   	lib/extend-table.h \
>   	lib/extend-table.c \
> @@ -24,17 +25,36 @@ lib_libovn_la_SOURCES = \
>   	lib/inc-proc-eng.c \
>   	lib/inc-proc-eng.h
>   nodist_lib_libovn_la_SOURCES = \
> +	lib/ovn-dirs.c \
>   	lib/ovn-nb-idl.c \
>   	lib/ovn-nb-idl.h \
>   	lib/ovn-sb-idl.c \
>   	lib/ovn-sb-idl.h
>   
> +CLEANFILES += $(nodist_lib_libovn_la_SOURCES)
> +
>   # ovn-sb IDL
>   OVSIDL_BUILT += \
>   	lib/ovn-sb-idl.c \
>   	lib/ovn-sb-idl.h \
>   	lib/ovn-sb-idl.ovsidl
> -EXTRA_DIST += lib/ovn-sb-idl.ann
> +EXTRA_DIST += \
> +	lib/ovn-sb-idl.ann \
> +	lib/ovn-dirs.c.in
> +
> +lib/ovn-dirs.c: lib/ovn-dirs.c.in Makefile
> +	$(AM_V_GEN)($(ro_c) && sed < $(srcdir)/lib/ovn-dirs.c.in \
> +		-e 's,[@]srcdir[@],$(srcdir),g' \
> +		-e 's,[@]LOGDIR[@],"$(LOGDIR)",g' \
> +		-e 's,[@]RUNDIR[@],"$(RUNDIR)",g' \
> +		-e 's,[@]OVN_RUNDIR[@],"$(OVN_RUNDIR)",g' \
> +		-e 's,[@]DBDIR[@],"$(DBDIR)",g' \
> +		-e 's,[@]bindir[@],"$(bindir)",g' \
> +		-e 's,[@]sysconfdir[@],"$(sysconfdir)",g' \
> +		-e 's,[@]pkgdatadir[@],"$(pkgdatadir)",g') \
> +	     > lib/ovn-dirs.c.tmp && \
> +	mv lib/ovn-dirs.c.tmp lib/ovn-dirs.c
> +
>   OVN_SB_IDL_FILES = \
>   	$(srcdir)/ovn-sb.ovsschema \
>   	$(srcdir)/lib/ovn-sb-idl.ann
> diff --git a/lib/ovn-dirs.c.in b/lib/ovn-dirs.c.in
> new file mode 100644
> index 000000000..7ed1e3018
> --- /dev/null
> +++ b/lib/ovn-dirs.c.in
> @@ -0,0 +1,112 @@
> +#line 2 "@srcdir@/lib/dirs.c.in"
> +/*
> + * Copyright (c) 2019
> + *
> + * Licensed under the Apache License, Version 2.0 (the "License");
> + * you may not use this file except in compliance with the License.
> + * You may obtain a copy of the License at:
> + *
> + *     http://www.apache.org/licenses/LICENSE-2.0
> + *
> + * Unless required by applicable law or agreed to in writing, software
> + * distributed under the License is distributed on an "AS IS" BASIS,
> + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
> + * See the License for the specific language governing permissions and
> + * limitations under the License.
> + */
> +
> +#include <config.h>
> +#include "ovn-dirs.h"
> +#include <stdlib.h>
> +#include "lib/ovs-thread.h"
> +#include "lib/util.h"
> +
> +struct directory {
> +    const char *value;          /* Actual value; NULL if not yet determined. */
> +    const char *default_value;  /* Default value. */
> +    const char *var_name;       /* Environment variable to override default. */
> +    struct ovsthread_once once; /* Ensures 'value' gets initialized once. */
> +};
> +
> +static const char *
> +get_dir(struct directory *d)
> +{
> +    if (ovsthread_once_start(&d->once)) {
> +        d->value = getenv(d->var_name);
> +        if (!d->value || !d->value[0]) {
> +            d->value = d->default_value;
> +        }
> +        ovsthread_once_done(&d->once);
> +    }
> +    return d->value;
> +}
> +
> +const char *
> +ovn_sysconfdir(void)
> +{
> +    static struct directory d = {
> +        NULL, @sysconfdir@, "OVN_SYSCONFDIR", OVSTHREAD_ONCE_INITIALIZER
> +    };
> +
> +    return get_dir(&d);
> +}
> +
> +const char *
> +ovn_pkgdatadir(void)
> +{
> +    static struct directory d = {
> +        NULL, @pkgdatadir@, "OVN_PKGDATADIR", OVSTHREAD_ONCE_INITIALIZER
> +    };
> +
> +    return get_dir(&d);
> +}
> +
> +const char *
> +ovn_rundir(void)
> +{
> +    static struct directory d = {
> +        NULL, @OVN_RUNDIR@, "OVN_RUNDIR", OVSTHREAD_ONCE_INITIALIZER
> +    };
> +
> +    return get_dir(&d);
> +}
> +
> +const char *
> +ovn_logdir(void)
> +{
> +    static struct directory d = {
> +        NULL, @LOGDIR@, "OVN_LOGDIR", OVSTHREAD_ONCE_INITIALIZER
> +    };
> +
> +    return get_dir(&d);
> +}
> +
> +const char *
> +ovn_dbdir(void)
> +{
> +    static struct ovsthread_once once = OVSTHREAD_ONCE_INITIALIZER;
> +    static const char *dbdir;
> +
> +    if (ovsthread_once_start(&once)) {
> +        dbdir = getenv("OVN_DBDIR");
> +        if (!dbdir || !dbdir[0]) {
> +            char *sysconfdir = getenv("OVN_SYSCONFDIR");
> +
> +            dbdir = (sysconfdir
> +                     ? xasprintf("%s/ovn", sysconfdir)
> +                     : @DBDIR@);
> +        }
> +        ovsthread_once_done(&once);
> +    }
> +    return dbdir;
> +}
> +
> +const char *
> +ovn_bindir(void)
> +{
> +    static struct directory d = {
> +        NULL, @bindir@, "OVN_BINDIR", OVSTHREAD_ONCE_INITIALIZER
> +    };
> +
> +    return get_dir(&d);
> +}
> diff --git a/lib/ovn-dirs.h b/lib/ovn-dirs.h
> new file mode 100644
> index 000000000..22ff7a1ee
> --- /dev/null
> +++ b/lib/ovn-dirs.h
> @@ -0,0 +1,35 @@
> +/*
> + * Copyright (c) 2019.
> + *
> + * Licensed under the Apache License, Version 2.0 (the "License");
> + * you may not use this file except in compliance with the License.
> + * You may obtain a copy of the License at:
> + *
> + *     http://www.apache.org/licenses/LICENSE-2.0
> + *
> + * Unless required by applicable law or agreed to in writing, software
> + * distributed under the License is distributed on an "AS IS" BASIS,
> + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
> + * See the License for the specific language governing permissions and
> + * limitations under the License.
> + */
> +
> +#ifndef OVN_DIRS_H
> +#define OVN_DIRS_H 1
> +
> +#ifdef  __cplusplus
> +extern "C" {
> +#endif
> +
> +const char *ovn_sysconfdir(void); /* /usr/local/etc */
> +const char *ovn_pkgdatadir(void); /* /usr/local/share/ovn */
> +const char *ovn_rundir(void);     /* /usr/local/var/run/ovn */
> +const char *ovn_logdir(void);     /* /usr/local/var/log/ovn */
> +const char *ovn_dbdir(void);      /* /usr/local/etc/ovn */
> +const char *ovn_bindir(void);     /* /usr/local/bin */
> +
> +#ifdef  __cplusplus
> +}
> +#endif
> +
> +#endif /* OVN_DIRS_H */
> diff --git a/lib/ovn-util.c b/lib/ovn-util.c
> index 085498fd1..b425f3f2d 100644
> --- a/lib/ovn-util.c
> +++ b/lib/ovn-util.c
> @@ -13,8 +13,10 @@
>    */
>   
>   #include <config.h>
> +#include <unistd.h>
> +
>   #include "ovn-util.h"
> -#include "dirs.h"
> +#include "ovn-dirs.h"
>   #include "openvswitch/vlog.h"
>   #include "ovn-nb-idl.h"
>   #include "ovn-sb-idl.h"
> @@ -296,7 +298,7 @@ default_nb_db(void)
>       if (!def) {
>           def = getenv("OVN_NB_DB");
>           if (!def) {
> -            def = xasprintf("unix:%s/ovnnb_db.sock", ovs_rundir());
> +            def = xasprintf("unix:%s/ovnnb_db.sock", ovn_rundir());
>           }
>       }
>       return def;
> @@ -309,12 +311,28 @@ default_sb_db(void)
>       if (!def) {
>           def = getenv("OVN_SB_DB");
>           if (!def) {
> -            def = xasprintf("unix:%s/ovnsb_db.sock", ovs_rundir());
> +            def = xasprintf("unix:%s/ovnsb_db.sock", ovn_rundir());
>           }
>       }
>       return def;
>   }
>   
> +char *
> +get_abs_unix_ctl_path(void)
> +{
> +#ifdef _WIN32
> +    enum { WINDOWS = 1 };
> +#else
> +    enum { WINDOWS = 0 };
> +#endif
> +
> +    long int pid = getpid();
> +    char *abs_path =
> +        WINDOWS ? xasprintf("%s/%s.ctl", ovn_rundir(), program_name)
> +                : xasprintf("%s/%s.%ld.ctl", ovn_rundir(), program_name, pid);
> +    return abs_path;
> +}
> +
>   /* l3gateway, chassisredirect, and patch
>    * are not in this list since they are
>    * only set in the SB DB by northd
> diff --git a/lib/ovn-util.h b/lib/ovn-util.h
> index 6d5e1dfb5..fcd93cd82 100644
> --- a/lib/ovn-util.h
> +++ b/lib/ovn-util.h
> @@ -67,6 +67,7 @@ char *alloc_nat_zone_key(const struct uuid *key, const char *type);
>   
>   const char *default_nb_db(void);
>   const char *default_sb_db(void);
> +char *get_abs_unix_ctl_path(void);
>   
>   struct ovsdb_idl_table_class;
>   const char *db_table_usage(struct ds *tables,
> diff --git a/m4/openvswitch.m4 b/m4/openvswitch.m4
> index b599f17d7..964512795 100644
> --- a/m4/openvswitch.m4
> +++ b/m4/openvswitch.m4
> @@ -330,6 +330,17 @@ AC_DEFUN([OVS_CHECK_RUNDIR],
>        [RUNDIR='${localstatedir}/run/openvswitch'])
>      AC_SUBST([RUNDIR])])
>   
> +dnl Checks for the directory in which to store pidfiles.
> +AC_DEFUN([OVN_CHECK_RUNDIR],
> +  [AC_ARG_WITH(
> +     [rundir],
> +     AC_HELP_STRING([--with-ovn-rundir=DIR],
> +                    [directory used for pidfiles
> +                    [[LOCALSTATEDIR/run/ovn]]]),
> +     [OVN_RUNDIR=$withval],
> +     [OVN_RUNDIR='${localstatedir}/run/ovn'])
> +   AC_SUBST([OVN_RUNDIR])])
> +

It feels odd to me that we have --with-rundir and --with-ovn-rundir as 
configure options. It seems more natural to have --with-rundir (set the 
OVN runtime directory) and --with-ovs-rundir (inform the build where the 
OVS runtime directory is).

To me, --with-rundir sounds like an option to configure the rundir for 
the project that is being built, not the rundir for a different project.

>   dnl Checks for the directory in which to store logs.
>   AC_DEFUN([OVS_CHECK_LOGDIR],
>     [AC_ARG_WITH(
> diff --git a/northd/ovn-northd.c b/northd/ovn-northd.c
> index e86134414..b527f2172 100644
> --- a/northd/ovn-northd.c
> +++ b/northd/ovn-northd.c
> @@ -9351,7 +9351,14 @@ main(int argc, char *argv[])
>   
>       daemonize_start(false);
>   
> -    retval = unixctl_server_create(unixctl_path, &unixctl);
> +    if (!unixctl_path) {
> +        char *abs_unixctl_path = get_abs_unix_ctl_path();
> +        retval = unixctl_server_create(abs_unixctl_path, &unixctl);
> +        free(abs_unixctl_path);
> +    } else {
> +        retval = unixctl_server_create(unixctl_path, &unixctl);
> +    }
> +
>       if (retval) {
>           exit(EXIT_FAILURE);
>       }
> diff --git a/tests/ovs-macros.at b/tests/ovs-macros.at
> index 10593429d..b2e619f76 100644
> --- a/tests/ovs-macros.at
> +++ b/tests/ovs-macros.at
> @@ -49,6 +49,7 @@ ovs_setenv() {
>       sandbox=$1
>       ovs_dir=$ovs_base${1:+/$1}
>       OVS_RUNDIR=$ovs_dir; export OVS_RUNDIR
> +    OVN_RUNDIR=$ovs_dir; export OVN_RUNDIR
>       OVS_LOGDIR=$ovs_dir; export OVS_LOGDIR
>       OVS_DBDIR=$ovs_dir; export OVS_DBDIR
>       OVS_SYSCONFDIR=$ovs_dir; export OVS_SYSCONFDIR
> diff --git a/tutorial/ovs-sandbox b/tutorial/ovs-sandbox
> index 47032b499..7546d27ca 100755
> --- a/tutorial/ovs-sandbox
> +++ b/tutorial/ovs-sandbox
> @@ -360,6 +360,7 @@ sandbox=`cd sandbox && pwd`
>   
>   # Set up environment for OVS programs to sandbox themselves.
>   OVS_RUNDIR=$sandbox; export OVS_RUNDIR
> +OVN_RUNDIR=$sandbox; export OVN_RUNDIR
>   OVS_LOGDIR=$sandbox; export OVS_LOGDIR
>   OVS_DBDIR=$sandbox; export OVS_DBDIR
>   OVS_SYSCONFDIR=$sandbox; export OVS_SYSCONFDIR
> diff --git a/utilities/automake.mk b/utilities/automake.mk
> index d666b9661..db0b0e051 100644
> --- a/utilities/automake.mk
> +++ b/utilities/automake.mk
> @@ -1,6 +1,7 @@
>   scripts_SCRIPTS += \
>       utilities/ovn-ctl \
>       utilities/ovndb-servers.ocf
> +scripts_DATA += utilities/ovn-lib
>   
>   man_MANS += \
>       utilities/ovn-ctl.8 \
> @@ -21,6 +22,7 @@ bin_SCRIPTS += \
>   
>   EXTRA_DIST += \
>       utilities/ovn-ctl \
> +    utilities/ovn-lib.in \
>       utilities/ovn-ctl.8.xml \
>       utilities/ovn-docker-overlay-driver.in \
>       utilities/ovn-docker-underlay-driver.in \
> @@ -31,6 +33,7 @@ EXTRA_DIST += \
>   
>   CLEANFILES += \
>       utilities/ovn-ctl.8 \
> +    utilities/ovn-lib \
>       utilities/ovn-docker-overlay-driver \
>       utilities/ovn-docker-underlay-driver \
>       utilities/ovn-nbctl.8 \
> @@ -39,6 +42,8 @@ CLEANFILES += \
>       utilities/ovn-detrace.1 \
>       utilities/ovn-detrace
>   
> +utilities/ovn-lib: $(top_builddir)/config.status
> +
>   # ovn-nbctl
>   bin_PROGRAMS += utilities/ovn-nbctl
>   utilities_ovn_nbctl_SOURCES = utilities/ovn-nbctl.c
> diff --git a/utilities/ovn-ctl b/utilities/ovn-ctl
> index 7e5cd469c..a973b09a2 100755
> --- a/utilities/ovn-ctl
> +++ b/utilities/ovn-ctl
> @@ -13,12 +13,16 @@
>   # limitations under the License.
>   
>   case $0 in
> -    */*) dir0=`echo "$0" | sed 's,/[^/]*$,,'` ;;
> +    */*) dir0=`echo "$0" | sed 's,/[^/]*$,,'`
> +         ovsdir=`echo "$dir0" | sed 's,/ovn/scripts,,'`
> +         ovsdir=$ovsdir/openvswitch/scripts
> +         ;;
>       *) dir0=./ ;;
>   esac
> -. "$dir0/ovs-lib" || exit 1
> +. "$dir0/ovn-lib" || exit 1
> +. "$ovsdir/ovs-lib" || exit 1
>   
> -for dir in "$sbindir" "$bindir" /sbin /bin /usr/sbin /usr/bin; do
> +for dir in "$sbindir" "$ovn_bindir" "$bindir" /sbin /bin /usr/sbin /usr/bin; do
>       case :$PATH: in
>           *:$dir:*) ;;
>           *) PATH=$PATH:$dir ;;
> @@ -26,9 +30,9 @@ 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="$etcdir/ovn-northd-db-params.conf"
> +ovnnb_active_conf_file="$ovn_etcdir/ovnnb-active.conf"
> +ovnsb_active_conf_file="$ovn_etcdir/ovnsb-active.conf"
> +ovn_northd_db_conf_file="$ovn_etcdir/ovn-northd-db-params.conf"
>   ## ----- ##
>   ## start ##
>   ## ----- ##
> @@ -110,6 +114,7 @@ start_ovsdb__() {
>       local logfile
>       local log
>       local sock
> +    local ctrl_sock
>       local detach
>       local create_insecure_remote
>       local port
> @@ -134,6 +139,7 @@ start_ovsdb__() {
>       eval logfile=\$OVN_${DB}_LOGFILE
>       eval log=\$OVN_${DB}_LOG
>       eval sock=\$DB_${DB}_SOCK
> +    eval ctrl_sock=\$DB_${DB}_CTRL_SOCK
>       eval detach=\$DB_${DB}_DETACH
>       eval create_insecure_remote=\$DB_${DB}_CREATE_INSECURE_REMOTE
>       eval port=\$DB_${DB}_PORT
> @@ -144,7 +150,10 @@ start_ovsdb__() {
>       eval ovn_db_ssl_cert=\$OVN_${DB}_DB_SSL_CERT
>       eval ovn_db_ssl_cacert=\$OVN_${DB}_DB_SSL_CA_CERT
>   
> -    install_dir "$OVN_RUNDIR"
> +    ovn_install_dir "$OVN_RUNDIR"
> +    ovn_install_dir "$ovn_logdir"
> +    ovn_install_dir "$ovn_dbdir"
> +
>       # Check and eventually start ovsdb-server for DB
>       if pidfile_is_running $db_pid_file; then
>           return
> @@ -177,7 +186,7 @@ $cluster_remote_port
>       set ovsdb-server
>       set "$@" $log --log-file=$logfile
>       set "$@" --remote=punix:$sock --pidfile=$db_pid_file
> -    set "$@" --unixctl=ovn${db}_db.ctl
> +    set "$@" --unixctl=$ctrl_sock
>   
>       [ "$OVS_USER" != "" ] && set "$@" --user "$OVS_USER"
>   
> @@ -328,7 +337,7 @@ start_northd () {
>   
>           set "$@" $OVN_NORTHD_LOG $ovn_northd_params
>   
> -        OVS_RUNDIR=${OVN_RUNDIR} start_daemon "$OVN_NORTHD_PRIORITY" "$OVN_NORTHD_WRAPPER" "$@"
> +        OVS_RUNDIR=${OVS_RUNDIR} start_ovn_daemon "$OVN_NORTHD_PRIORITY" "$OVN_NORTHD_WRAPPER" "$@"
>       fi
>   }
>   
> @@ -350,7 +359,7 @@ start_controller () {
>   
>       [ "$OVN_USER" != "" ] && set "$@" --user "$OVN_USER"
>   
> -    OVS_RUNDIR=${OVN_RUNDIR} start_daemon "$OVN_CONTROLLER_PRIORITY" "$OVN_CONTROLLER_WRAPPER" "$@"
> +    OVS_RUNDIR=${OVS_RUNDIR} start_ovn_daemon "$OVN_CONTROLLER_PRIORITY" "$OVN_CONTROLLER_WRAPPER" "$@"
>   }
>   
>   start_controller_vtep () {
> @@ -377,7 +386,7 @@ start_controller_vtep () {
>   
>       [ "$OVN_USER" != "" ] && set "$@" --user "$OVN_USER"
>   
> -    OVS_RUNDIR=${OVN_RUNDIR} start_daemon "$OVN_CONTROLLER_PRIORITY" "$OVN_CONTROLLER_WRAPPER" "$@"
> +    OVS_RUNDIR=${OVS_RUNDIR} start_ovn_daemon "$OVN_CONTROLLER_PRIORITY" "$OVN_CONTROLLER_WRAPPER" "$@"
>   }
>   
>   ## ---- ##
> @@ -385,7 +394,7 @@ start_controller_vtep () {
>   ## ---- ##
>   
>   stop_northd () {
> -    OVS_RUNDIR=${OVN_RUNDIR} stop_daemon ovn-northd
> +    OVS_RUNDIR=${OVS_RUNDIR} stop_ovn_daemon ovn-northd
>   
>       if [ ! -e $ovn_northd_db_conf_file ]; then
>           if test X"$OVN_MANAGE_OVSDB" = Xyes; then
> @@ -395,11 +404,11 @@ stop_northd () {
>   }
>   
>   stop_controller () {
> -    OVS_RUNDIR=${OVN_RUNDIR} stop_daemon ovn-controller "$@"
> +    OVS_RUNDIR=${OVS_RUNDIR} stop_ovn_daemon ovn-controller "$@"
>   }
>   
>   stop_controller_vtep () {
> -    OVS_RUNDIR=${OVN_RUNDIR} stop_daemon ovn-controller-vtep
> +    OVS_RUNDIR=${OVS_RUNDIR} stop_ovn_daemon ovn-controller-vtep
>   }
>   
>   ## ------- ##
> @@ -444,11 +453,12 @@ set_defaults () {
>       OVN_MANAGE_OVSDB=yes
>   
>       OVS_RUNDIR=${OVS_RUNDIR:-${rundir}}
> -    OVN_RUNDIR=${OVN_RUNDIR:-${OVS_RUNDIR}}
> +    OVN_RUNDIR=${OVN_RUNDIR:-${ovn_rundir}}
>   
>       DB_NB_SOCK=$OVN_RUNDIR/ovnnb_db.sock
>       DB_NB_PID=$OVN_RUNDIR/ovnnb_db.pid
> -    DB_NB_FILE=$dbdir/ovnnb_db.db
> +    DB_NB_CTRL_SOCK=$OVN_RUNDIR/ovnnb_db.ctl
> +    DB_NB_FILE=$ovn_dbdir/ovnnb_db.db
>       DB_NB_ADDR=0.0.0.0
>       DB_NB_PORT=6641
>       DB_NB_SYNC_FROM_PROTO=tcp
> @@ -457,17 +467,18 @@ set_defaults () {
>   
>       DB_SB_SOCK=$OVN_RUNDIR/ovnsb_db.sock
>       DB_SB_PID=$OVN_RUNDIR/ovnsb_db.pid
> -    DB_SB_FILE=$dbdir/ovnsb_db.db
> +    DB_SB_CTRL_SOCK=$OVN_RUNDIR/ovnsb_db.ctl
> +    DB_SB_FILE=$ovn_dbdir/ovnsb_db.db
>       DB_SB_ADDR=0.0.0.0
>       DB_SB_PORT=6642
>       DB_SB_SYNC_FROM_PROTO=tcp
>       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
> +    DB_NB_SCHEMA=$ovn_datadir/ovn-nb.ovsschema
> +    DB_SB_SCHEMA=$ovn_datadir/ovn-sb.ovsschema
>   
> -    DB_SOCK=$OVN_RUNDIR/db.sock
> +    DB_SOCK=$OVS_RUNDIR/db.sock
>       DB_CONF_FILE=$dbdir/conf.db
>   
>       OVN_NORTHD_PRIORITY=-10
> @@ -483,8 +494,8 @@ set_defaults () {
>       OVN_NORTHD_LOGFILE=""
>       OVN_NB_LOG="-vconsole:off -vfile:info"
>       OVN_SB_LOG="-vconsole:off -vfile:info"
> -    OVN_NB_LOGFILE="$logdir/ovsdb-server-nb.log"
> -    OVN_SB_LOGFILE="$logdir/ovsdb-server-sb.log"
> +    OVN_NB_LOGFILE="$ovn_logdir/ovsdb-server-nb.log"
> +    OVN_SB_LOGFILE="$ovn_logdir/ovsdb-server-sb.log"
>   
>       OVN_CONTROLLER_SSL_KEY=""
>       OVN_CONTROLLER_SSL_CERT=""
> @@ -662,14 +673,14 @@ File location options:
>     --db-sb-use-remote-in-db=yes|no OVN_Southbound db listen on target connection table (default: $DB_SB_USE_REMOTE_IN_DB)
>   
>   Default directories with "configure" option and environment variable override:
> -  logs: /usr/local/var/log/openvswitch (--with-logdir, OVS_LOGDIR)
> -  pidfiles and sockets: /usr/local/var/run/openvswitch (--with-rundir, OVS_RUNDIR)
> -  ovn-nb.db: /usr/local/etc/openvswitch (--with-dbdir, OVS_DBDIR)
> -  ovn-sb.db: /usr/local/etc/openvswitch (--with-dbdir, OVS_DBDIR)
> -  system configuration: /usr/local/etc (--sysconfdir, OVS_SYSCONFDIR)
> -  data files: /usr/local/share/openvswitch (--pkgdatadir, OVS_PKGDATADIR)
> -  user binaries: /usr/local/bin (--bindir, OVS_BINDIR)
> -  system binaries: /usr/local/sbin (--sbindir, OVS_SBINDIR)
> +  logs: /usr/local/var/log/ovn (--with-logdir, OVN_LOGDIR)
> +  pidfiles and sockets: /usr/local/var/run/ovn (--with-rundir, OVN_RUNDIR)
> +  ovn-nb.db: /usr/local/etc/ovn (--with-dbdir, OVN_DBDIR)
> +  ovn-sb.db: /usr/local/etc/ovn (--with-dbdir, OVN_DBDIR)
> +  system configuration: /usr/local/etc (--sysconfdir, OVN_SYSCONFDIR)
> +  data files: /usr/local/share/ovn (--pkgdatadir, OVN_PKGDATADIR)
> +  user binaries: /usr/local/bin (--bindir, OVN_BINDIR)
> +  system binaries: /usr/local/sbin (--sbindir, OVN_SBINDIR)
>   EOF
>   }
>   
> diff --git a/utilities/ovn-ctl.8.xml b/utilities/ovn-ctl.8.xml
> index c5294d794..f70bd6f0f 100644
> --- a/utilities/ovn-ctl.8.xml
> +++ b/utilities/ovn-ctl.8.xml
> @@ -203,12 +203,12 @@
>       <h3>Starting standalone ovn db server passing SSL certificates</h3>
>       <p>
>         <code>
> -        # ovn-ctl --ovn-nb-db-ssl-key=/etc/openvswitch/ovnnb-privkey.pem
> -          --ovn-nb-db-ssl-cert=/etc/openvswitch/ovnnb-cert.pem
> -          --ovn-nb-db-ssl-ca-cert=/etc/openvswitch/cacert.pem
> -          --ovn-sb-db-ssl-key=/etc/openvswitch/ovnsb-privkey.pem
> -          --ovn-sb-db-ssl-cert=/etc/openvswitch/ovnsb-cert.pem
> -          --ovn-sb-db-ssl-ca-cert=/etc/openvswitch/cacert.pem
> +        # ovn-ctl --ovn-nb-db-ssl-key=/etc/ovn/ovnnb-privkey.pem
> +          --ovn-nb-db-ssl-cert=/etc/ovn/ovnnb-cert.pem
> +          --ovn-nb-db-ssl-ca-cert=/etc/ovn/cacert.pem
> +          --ovn-sb-db-ssl-key=/etc/ovn/ovnsb-privkey.pem
> +          --ovn-sb-db-ssl-cert=/etc/ovn/ovnsb-cert.pem
> +          --ovn-sb-db-ssl-ca-cert=/etc/ovn/cacert.pem
>              start_northd
>         </code>
>       </p>
> diff --git a/utilities/ovn-lib.in b/utilities/ovn-lib.in
> new file mode 100644
> index 000000000..50111a76b
> --- /dev/null
> +++ b/utilities/ovn-lib.in
> @@ -0,0 +1,204 @@
> +# -*- sh -*-
> +# vi:syntax=sh
> +# This is a shell function library sourced by some OVN scripts.
> +# It is not intended to be invoked on its own.
> +# The code copied from ovs/utilities/ovs-lib.in
> +
> +#
> +# Licensed under the Apache License, Version 2.0 (the "License");
> +# you may not use this file except in compliance with the License.
> +# You may obtain a copy of the License at:
> +#
> +#     http://www.apache.org/licenses/LICENSE-2.0
> +#
> +# Unless required by applicable law or agreed to in writing, software
> +# distributed under the License is distributed on an "AS IS" BASIS,
> +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
> +# See the License for the specific language governing permissions and
> +# limitations under the License.
> +
> +## ----------------- ##
> +## configure options ##
> +## ----------------- ##
> +
> +# All of these should be substituted by the Makefile at build time.
> +ovn_logdir=${OVN_LOGDIR-'@LOGDIR@'}                 # /var/log/ovn
> +ovn_rundir=${OVN_RUNDIR-'@OVN_RUNDIR@'}                 # /var/run/ovn
> +ovn_sysconfdir=${OVN_SYSCONFDIR-'@sysconfdir@'}     # /etc
> +ovn_etcdir=$sysconfdir/ovn                          # /etc/ovn
> +ovn_datadir=${OVN_PKGDATADIR-'@pkgdatadir@'}        # /usr/share/ovn
> +ovn_bindir=${OVN_BINDIR-'@bindir@'}                 # /usr/bin
> +ovn_sbindir=${OVN_SBINDIR-'@sbindir@'}              # /usr/sbin
> +
> +# /etc/ovn or /var/lib/ovn
> +if test X"$OVN_DBDIR" != X; then
> +    ovn_dbdir=$OVN_DBDIR
> +elif test X"$OVN_SYSCONFDIR" != X; then
> +    ovn_dbdir=$OVN_SYSCONFDIR/ovn
> +else
> +    ovn_dbdir='@DBDIR@'
> +fi
> +
> +VERSION='@VERSION@'
> +
> +DAEMON_CWD=/
> +
> +LC_ALL=C; export LC_ALL
> +
> +ovn_install_dir () {
> +    DIR="$1"
> +    INSTALL_MODE="${2:-755}"
> +    INSTALL_USER="root"
> +    INSTALL_GROUP="root"
> +    [ "$OVN_USER" != "" ] && INSTALL_USER="${OVN_USER%:*}"
> +    [ "${OVN_USER##*:}" != "" ] && INSTALL_GROUP="${OVN_USER##*:}"
> +
> +    if test ! -d "$DIR"; then
> +        install -d -m "$INSTALL_MODE" -o "$INSTALL_USER" -g "$INSTALL_GROUP" "$DIR"
> +        restorecon "$DIR" >/dev/null 2>&1
> +    fi
> +}
> +
> +start_ovn_daemon () {
> +    priority=$1
> +    wrapper=$2
> +    shift; shift
> +    daemon=$1
> +    strace=""
> +
> +    # drop core files in a sensible place
> +    ovn_install_dir "$DAEMON_CWD"
> +    set "$@" --no-chdir
> +    cd "$DAEMON_CWD"
> +
> +    # log file
> +    ovn_install_dir "$ovn_logdir" "750"
> +    set "$@" --log-file="$ovn_logdir/$daemon.log"
> +
> +    # pidfile and monitoring
> +    ovn_install_dir "$ovn_rundir"
> +    set "$@" --pidfile="$ovn_rundir/$daemon.pid"
> +    set "$@" --detach
> +    test X"$MONITOR" = Xno || set "$@" --monitor
> +
> +    # wrapper
> +    case $wrapper in
> +        valgrind)
> +            if (valgrind --version) > /dev/null 2>&1; then
> +                set valgrind -q --leak-check=full --time-stamp=yes \
> +                    --log-file="$ovn_logdir/$daemon.valgrind.log.%p" "$@"
> +            else
> +                log_failure_msg "valgrind not installed, running $daemon without it"
> +            fi
> +            ;;
> +        strace)
> +            if (strace -V) > /dev/null 2>&1; then
> +                strace="strace -tt -T -s 256 -ff"
> +                if (strace -DV) > /dev/null 2>&1; then
> +                    # Has the -D option.
> +                    set $strace -D -o "$ovn_logdir/$daemon.strace.log" "$@"
> +                    strace=""
> +                fi
> +            else
> +                log_failure_msg "strace not installed, running $daemon without it"
> +            fi
> +            ;;
> +        glibc)
> +            set env MALLOC_CHECK_=2 MALLOC_PERTURB_=165 "$@"
> +            ;;
> +        '')
> +            ;;
> +        *)
> +            log_failure_msg "unknown wrapper $wrapper, running $daemon without it"
> +            ;;
> +    esac
> +
> +    # priority
> +    if test X"$priority" != X; then
> +        set nice -n "$priority" "$@"
> +    fi
> +
> +    action "Starting $daemon" "$@" || return 1
> +
> +    if test X"$strace" != X; then
> +        # Strace doesn't have the -D option so we attach after the fact.
> +        setsid $strace -o "$ovn_logdir/$daemon.strace.log" \
> +            -p `cat $ovn_rundir/$daemon.pid` > /dev/null 2>&1 &
> +    fi
> +}
> +
> +stop_ovn_daemon () {
> +    if test -e "$ovn_rundir/$1.pid"; then
> +        if pid=`cat "$ovn_rundir/$1.pid"`; then
> +            if pid_exists "$pid" >/dev/null 2>&1; then :; else
> +                rm -f $ovn_rundir/$1.$pid.ctl $ovn_rundir/$1.$pid
> +                return 0
> +            fi
> +
> +            graceful="EXIT .1 .25 .65 1"
> +            actions="TERM .1 .25 .65 1 1 1 1 \
> +                     KILL 1 1 1 2 10 15 30 \
> +                     FAIL"
> +            version=`ovs-appctl -T 1 -t $ovn_rundir/$1.$pid.ctl version \
> +                     | awk 'NR==1{print $NF}'`
> +
> +            # Use `ovs-appctl exit` only if the running daemon version
> +            # is >= 2.5.90.  This script might be used during upgrade to
> +            # stop older versions of daemons which do not behave correctly
> +            # with `ovs-appctl exit` (e.g. ovs-vswitchd <= 2.5.0 deletes
> +            # internal ports).
> +            if version_geq "$version" "2.5.90"; then
> +                actions="$graceful $actions"
> +            fi
> +            for action in $actions; do
> +                if pid_exists "$pid" >/dev/null 2>&1; then :; else
> +                    return 0
> +                fi
> +                case $action in
> +                    EXIT)
> +                        action "Exiting $1 ($pid)" \
> +                            ${bindir}/ovs-appctl -T 1 -t $ovn_rundir/$1.$pid.ctl exit $2
> +                        ;;
> +                    TERM)
> +                        action "Killing $1 ($pid)" kill $pid
> +                        ;;
> +                    KILL)
> +                        action "Killing $1 ($pid) with SIGKILL" kill -9 $pid
> +                        ;;
> +                    FAIL)
> +                        log_failure_msg "Killing $1 ($pid) failed"
> +                        return 1
> +                        ;;
> +                    *)
> +                        sleep $action
> +                        ;;
> +                esac
> +            done
> +        fi
> +    fi
> +    log_success_msg "$1 is not running"
> +}
> +
> +ovn_daemon_status () {
> +    pidfile=$ovn_rundir/$1.pid
> +    if test -e "$pidfile"; then
> +        if pid=`cat "$pidfile"`; then
> +            if pid_exists "$pid"; then
> +                echo "$1 is running with pid $pid"
> +                return 0
> +            else
> +                echo "Pidfile for $1 ($pidfile) is stale"
> +            fi
> +        else
> +            echo "Pidfile for $1 ($pidfile) exists but cannot be read"
> +        fi
> +    else
> +        echo "$1 is not running"
> +    fi
> +    return 1
> +}
> +
> +daemon_is_running () {
> +    pidfile=$ovn_rundir/$1.pid
> +    test -e "$pidfile" && pid=`cat "$pidfile"` && pid_exists "$pid" && pid_comm_check $1 $pid
> +} >/dev/null 2>&1
> 



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