From e5a627e43af307490a2c4d0fee4f4fe4044aecdb Mon Sep 17 00:00:00 2001
From: Giulio Fidente <gfidente@redhat.com>
Date: Thu, 18 Aug 2016 17:17:29 +0200
Subject: Upgrade ceph-osd

Upgrades the ceph-osd daemon from Hammer to Jewel

Change-Id: Idfa90fdc0052c53f448401c85c5d13a2ba68acd1
---
 extraconfig/tasks/major_upgrade_ceph_storage.sh | 77 +++++++++++++++++++++----
 1 file changed, 67 insertions(+), 10 deletions(-)

(limited to 'extraconfig')

diff --git a/extraconfig/tasks/major_upgrade_ceph_storage.sh b/extraconfig/tasks/major_upgrade_ceph_storage.sh
index de42b16d..03a1c1c2 100644
--- a/extraconfig/tasks/major_upgrade_ceph_storage.sh
+++ b/extraconfig/tasks/major_upgrade_ceph_storage.sh
@@ -4,32 +4,89 @@
 # major upgrade workflow.
 #
 set -eu
+set -o pipefail
 
 UPGRADE_SCRIPT=/root/tripleo_upgrade_node.sh
 
-cat > $UPGRADE_SCRIPT << ENDOFCAT
+cat > $UPGRADE_SCRIPT << 'ENDOFCAT'
+#!/bin/bash
 ### DO NOT MODIFY THIS FILE
 ### This file is automatically delivered to the ceph-storage nodes as part of the
 ### tripleo upgrades workflow
+set -eu
+
+echo INFO: starting $(basename "$0")
 
+# Exit if not running
+if ! pidof ceph-osd; then
+    echo INFO: ceph-osd is not running, skipping
+    exit 0
+fi
 
-function systemctl_ceph {
-    action=\$1
-    systemctl \$action ceph
-}
+# Exit if not Hammer
+INSTALLED_VERSION=$(ceph --version | awk '{print $3}')
+if ! [[ "$INSTALLED_VERSION" =~ ^0\.94.* ]]; then
+    echo INFO: version of Ceph installed is not 0.94, skipping
+    exit 0
+fi
 
-# "so that mirrors aren't rebalanced as if the OSD died" - gfidente
+OSD_PIDS=$(pidof ceph-osd)
+OSD_IDS=$(ls /var/lib/ceph/osd | awk 'BEGIN { FS = "-" } ; { print $2 }')
+
+# "so that mirrors aren't rebalanced as if the OSD died" - gfidente / leseb
 ceph osd set noout
+ceph osd set norebalance
+ceph osd set nodeep-scrub
+ceph osd set noscrub
+
+# Stop daemon using Hammer sysvinit script
+for OSD_ID in $OSD_IDS; do
+    service ceph stop osd.${OSD_ID}
+done
+
+# Nice guy will return non-0 only when all failed
+timeout 60 bash -c "while kill -0 ${OSD_PIDS} 2> /dev/null; do
+  sleep 2;
+done"
 
-systemctl_ceph stop
+# Update (Ceph to Jewel)
 yum -y install python-zaqarclient  # needed for os-collect-config
 yum -y update
-systemctl_ceph start
 
-ceph osd unset noout
+# Restart/Exit if not on Jewel, only in that case we need the changes
+UPDATED_VERSION=$(ceph --version | awk '{print $3}')
+if [[ "$UPDATED_VERSION" =~ ^0\.94.* ]]; then
+    echo WARNING: Ceph was not upgraded, restarting daemon
+    for OSD_ID in $OSD_IDS; do
+        service ceph start osd.${OSD_ID}
+    done
+elif [[ "$UPDATED_VERSION" =~ ^10\.2.* ]]; then
+    # RPM could own some of these but we can't take risks on the pre-existing files
+    for d in /var/lib/ceph/osd /var/log/ceph /var/run/ceph /etc/ceph; do
+        chown -R ceph:ceph $d
+    done
+
+    # Replay udev events with newer rules
+    udevadm trigger && udevadm settle
+
+    # Enable systemd unit
+    systemctl enable ceph-osd.target
+    for OSD_ID in $OSD_IDS; do
+        systemctl enable ceph-osd@${OSD_ID}
+        systemctl start ceph-osd@${OSD_ID}
+    done
 
+    echo INFO: Ceph was upgraded to Jewel
+else
+    echo ERROR: Ceph was upgraded to an unknown release, daemon is stopped, need manual intervention
+    exit 1
+fi
+
+ceph osd unset noout
+ceph osd unset norebalance
+ceph osd unset nodeep-scrub
+ceph osd unset noscrub
 ENDOFCAT
 
 # ensure the permissions are OK
 chmod 0755 $UPGRADE_SCRIPT
-
-- 
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