[OSSTEST PATCH v6 1/3] ts-openstack-deploy: Deploy OpenStack on a host with devstack

[Anthony PERARD <anthony.perard@citrix.com>]

This script installs any necessary packages and clones all of the OpenStack
trees which are used by devstack to deploy OpenStack.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>

---
Changes in V6:
- rebased
- fix issues due to new debian and newer devstack:
  - add missing libvirt group
  - switch back to old nova-network instead of neutron
  - have devstack use 'service' instead of 'systemctl' to restart
    services

Only change in V5:
- edit stackrc from devstack file to change the hardcoded path DEST

No change in V4:
- acked

Change in V3:
- Use host as argument to run the job.
- Use selectjob() and get rid of the unused $gho.
- Use target_jobdir() instead of builddirsprops().
- Remove GIT_BASE from devstack config.
- Rename the script to ts-openstack-deploy (from ts-openstack-devstack).
---
 sg-run-job          |   5 +
 ts-openstack-deploy | 338 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 343 insertions(+)
 create mode 100755 ts-openstack-deploy

diff --git a/sg-run-job b/sg-run-job
index 9f8d003..5146dd1 100755
--- a/sg-run-job
+++ b/sg-run-job
@@ -474,6 +474,11 @@ proc run-job/test-rumprun {} {
                  ts-guest-destroy-hard        host   $g   +
 }
 
+proc need-hosts/test-devstack {} { return host }
+proc run-job/test-devstack {} {
+  run-ts . = ts-openstack-deploy host
+}
+
 if {[file exists sg-run-job-adhoc]} {
     source sg-run-job-adhoc
 }
diff --git a/ts-openstack-deploy b/ts-openstack-deploy
new file mode 100755
index 0000000..5758f82
--- /dev/null
+++ b/ts-openstack-deploy
@@ -0,0 +1,338 @@
+#!/usr/bin/perl
+# This is part of "osstest", an automated testing framework for Xen.
+# Copyright (C) 2015 Citrix Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+use strict qw(vars);
+use Osstest;
+use Osstest::TestSupport;
+use Osstest::BuildSupport;
+
+tsreadconfig();
+our ($whhost) = @ARGV;
+$whhost ||= 'host';
+our $ho = selecthost($whhost);
+our $builddir = target_jobdir($ho);
+
+sub tgt_init ();
+
+sub packages () {
+  # Install open-iscsi ahead of devstack ...
+  target_install_packages($ho, qw(git sudo open-iscsi));
+  # ... and start open-iscsi to have /etc/iscsi/initiatorname.iscsi
+  # generated. This is done on install on Ubuntu.
+  target_cmd_root($ho, 'service open-iscsi start');
+}
+
+sub checkout () {
+  prepbuilddirs();
+  build_clone($ho, 'cinder', $builddir, 'cinder');
+  build_clone($ho, 'devstack', $builddir, 'devstack');
+  build_clone($ho, 'glance', $builddir, 'glance');
+  build_clone($ho, 'keystone', $builddir, 'keystone');
+  build_clone($ho, 'nova', $builddir, 'nova');
+  build_clone($ho, 'requirements', $builddir, 'requirements');
+  build_clone($ho, 'tempest', $builddir, 'tempest');
+
+  my $vg = target_choose_vg($ho, 10*1024); # 10GB
+  target_putfilecontents_stash($ho, 60, <<END, $builddir.'/devstack/local.conf');
+[[local|localrc]]
+# Everything should be cloned by osstest, so devstack don't have to do it
+ERROR_ON_CLONE=True
+USE_SCREEN=False
+ADMIN_PASSWORD=secretadmin
+DATABASE_PASSWORD=secretdatabase
+RABBIT_PASSWORD=secretrabbit
+SERVICE_PASSWORD=secretservice
+SERVICE_TOKEN=atokenserviced
+# make it small because there is no way to not have this lvm volume created
+VOLUME_BACKING_FILE_SIZE=500M
+DEST=$builddir
+LOGFILE=\$DEST/logs/stack.sh.log
+# stackrc set this but don't take \$DEST into account
+SERVICE_DIR=\${DEST}/status
+LOG_COLOR=False
+LIBVIRT_TYPE=xen
+disable_service horizon
+disable_service n-novnc
+disable_service dstat
+enable_service n-obj
+# Disable neutron and switch back to nova-network
+disable_service q-svc
+disable_service q-dhcp
+disable_service q-meta
+disable_service q-agt
+disable_service q-l3
+enable_service n-net
+[[post-config|\$CINDER_CONF]]
+[lvmdriver-1]
+volume_group = $vg
+END
+
+  # stackrc does not take $DEST from local.conf into account, so fix it here
+  target_editfile($ho, "$builddir/devstack/stackrc", sub {
+      while (<EI>) {
+        if (m/^DEST=\/opt\/stack$/) {
+          s/DEST=\/opt\/stack/DEST=$builddir/;
+        }
+        print EO or die $!;
+      }
+  });
+
+  # libvirt is already installed, but not as a package, so avoid installation of
+  # the libvirt package with devstack
+  target_editfile($ho, "$builddir/devstack/files/debs/nova", sub {
+      while (<EI>) {
+        next if m/.*libvirt.*/;
+        print EO or die $!;
+      }
+  });
+  target_editfile($ho, "$builddir/devstack/lib/nova_plugins/functions-libvirt", sub {
+      while (<EI>) {
+        next if m/install_package.*libvirt.*/;
+        print EO or die $!;
+      }
+  });
+
+  # devstack blindly assume that systemd is used if systemctl is present
+  target_editfile($ho, "$builddir/devstack/functions-common", sub {
+      while (<EI>) {
+        if (m%\[ -x /bin/systemctl%) {
+          s%\[ -x /bin/systemctl \]%false%
+        }
+        print EO or die $!;
+      }
+  });
+
+  # OpenStack needs access to libvirt from a user.
+  target_cmd_root($ho, <<END);
+    if ! getent group libvirt >/dev/null; then
+      groupadd libvirt
+    fi
+    cat >> /etc/libvirt/libvirtd.conf <<EOF
+unix_sock_group = "libvirt"
+unix_sock_ro_perms = "0777"
+unix_sock_rw_perms = "0770"
+EOF
+    # For unknown reason, restart fail when done by devstack
+    # so stop the service here, and devstack will start it.
+    service libvirtd stop
+END
+
+  # devstack is going to setup the host, install some dependency.
+  target_putfilecontents_root_stash($ho, 100, <<END,"/etc/sudoers.d/devstack");
+osstest ALL=(ALL) NOPASSWD:ALL
+END
+
+  target_putfilecontents_root_stash($ho, 60, tgt_init(), "/etc/init.d/tgt");
+  target_cmd_root($ho, <<END);
+    chmod +x /etc/init.d/tgt
+END
+}
+
+sub deploy() {
+  target_cmd($ho, <<END, 1800);
+    cd $builddir/devstack
+    ./stack.sh
+END
+}
+
+packages();
+checkout();
+deploy();
+
+# This is missing from Debian but required by devstack
+# Got it from https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=577925
+sub tgt_init () {
+  return <<'END';
+#!/bin/bash
+### BEGIN INIT INFO
+# Provides:          tgtd
+# Required-Start:    $remote_fs $syslog
+# Required-Stop:     $remote_fs $syslog
+# Should-Start:      zfs
+# Should-Stop:       zfs
+# Default-Start:     2 3 4 5
+# Default-Stop:      0 1 6
+# Short-Description: iscsi target daemon
+# Description:       iscsi target daemon
+### END INIT INFO
+
+DESC="target framework daemon"
+NAME=tgtd
+DAEMON=/usr/sbin/${NAME}
+
+TGTD_CONFIG=/etc/tgt/targets.conf
+
+TASK=$1
+
+. /lib/lsb/init-functions
+
+[ -x $DAEMON ] || exit 0
+
+start()
+{
+        log_daemon_msg "Starting $DESC" "$NAME"
+        # Start tgtd first.
+        tgtd &>/dev/null
+        RETVAL=$?
+        if [ "$RETVAL" -ne 0 ] ; then
+                log_end_msg 1
+                exit 1
+        else
+                log_end_msg 0
+        fi
+        # Put tgtd into "offline" state until all the targets are configured.
+        # We don't want initiators to (re)connect and fail the connection
+        # if it's not ready.
+        tgtadm --op update --mode sys --name State -v offline
+        # Configure the targets.
+        tgt-admin -e -c $TGTD_CONFIG
+        # Put tgtd into "ready" state.
+        tgtadm --op update --mode sys --name State -v ready
+}
+
+stop()
+{
+        if [ "$RUNLEVEL" == 0 -o "$RUNLEVEL" == 6 ] ; then
+            forcedstop
+        fi
+        log_daemon_msg "Stopping $DESC" "$NAME"
+        # Remove all targets. It only removes targets which are not in use.
+        tgt-admin --update ALL -c /dev/null &>/dev/null
+        # tgtd will exit if all targets were removed
+        tgtadm --op delete --mode system &>/dev/null
+        RETVAL=$?
+        if [ "$RETVAL" -eq 107 ] ; then
+                if [ "$TASK" != "restart" ] ; then
+                        log_end_msg 1
+                        exit 1
+                else
+                        log_end_msg 0
+                fi
+        elif [ "$RETVAL" -ne 0 ] ; then
+                log_end_msg 1
+                echo "Some initiators are still connected - could not stop tgtd"
+                exit 2
+        else
+                log_end_msg 0
+        fi
+        echo -n
+}
+
+forcedstop()
+{
+        # NOTE: Forced shutdown of the iscsi target may cause data corruption
+        # for initiators that are connected.
+        echo "Force-stopping target framework daemon"
+        # Offline everything first. May be needed if we're rebooting, but
+        # expect the initiators to reconnect cleanly when we boot again
+        # (i.e. we don't want them to reconnect to a tgtd which is still
+        # working, but the target is gone).
+        tgtadm --op update --mode sys --name State -v offline &>/dev/null
+        RETVAL=$?
+        if [ "$RETVAL" -eq 107 ] ; then
+            echo "tgtd is not running"
+            [ "$TASK" != "restart" ] && exit 1
+        else
+            tgt-admin --offline ALL
+            # Remove all targets, even if they are still in use.
+            tgt-admin --update ALL -c /dev/null -f
+            # It will shut down tgtd only after all targets were removed.
+            tgtadm --op delete --mode system
+            RETVAL=$?
+            if [ "$RETVAL" -ne 0 ] ; then
+                echo "Failed to shutdown tgtd"
+                exit 1
+            fi
+        fi
+        echo -n
+}
+
+reload()
+{
+        log_daemon_msg "Reloading configuration of $DESC" "$NAME"
+        # Update configuration for targets. Only targets which
+        # are not in use will be updated.
+        tgt-admin --update ALL -c $TGTD_CONFIG &>/dev/null
+        RETVAL=$?
+        if [ "$RETVAL" -eq 107 ] ; then
+                log_end_msg 1
+                echo "tgtd is not running"
+                exit 1
+        fi
+        log_end_msg 0
+}
+
+forcedreload()
+{
+        log_daemon_msg "Forced-reload configuration of $DESC" "$NAME"
+        # Update configuration for targets, even those in use.
+        tgt-admin --update ALL -f -c $TGTD_CONFIG &>/dev/null
+        RETVAL=$?
+        if [ "$RETVAL" -eq 107 ] ; then
+                log_end_msg 1
+                echo "tgtd is not running"
+                exit 1
+        else
+                log_end_msg 0
+        fi
+}
+
+status()
+{
+        # Don't name this script "tgtd"...
+        TGTD_PROC=$(ps -C tgtd | grep -c tgtd)
+        if [ "$TGTD_PROC" -eq 2 ] ; then
+            echo "tgtd is running. Run 'tgt-admin -s' to see detailed target info."
+        else
+            echo "tgtd is NOT running."
+        fi
+}
+
+case $1 in
+        start)
+                start
+                ;;
+        stop)
+                stop
+                ;;
+        forcedstop)
+                forcedstop
+                ;;
+        restart)
+                TASK=restart
+                stop && start
+                ;;
+        forcedrestart)
+                TASK=restart
+                forcedstop && start
+                ;;
+        reload)
+                reload
+                ;;
+        force-reload)
+                forcedreload
+                ;;
+        status)
+                status
+                ;;
+        *)
+                echo "Usage: $0 {start|stop|forcedstop|restart|forcedrestart|reload|force-reload|status}"
+                exit 2
+                ;;
+esac
+END
+}
-- 
Anthony PERARD


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