CentOS 7
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OpenStack Newton : Configure Swift#3 (Storage Node)
2016/10/26
 
Configure OpenStack Object Storage (Swift).
This example shows to configure like the environment below. 
                                    |
     +------------------+           |           +-----------------+
     | [ Control Node ] |10.0.0.30  |  10.0.0.50|  [ Proxy Node ] |
     |     Keystone     |-----------+-----------|                 |
     +------------------+           |           +-----------------+
                                    |
        +---------------------------+--------------------------+
        |                           |                          |
        |10.0.0.71                  |10.0.0.72                 |10.0.0.73 
+-------+----------+       +--------+---------+       +--------+---------+
| [Storage Node#1] |       | [Storage Node#2] |       | [Storage Node#3] |
|                  |-------|                  |-------|                  |
+------------------+       +------------------+       +------------------+
 
Configure Storage Node on this section.
It's OK to set the same settings mostly on all Storage Nodes, but only IP address and Device number are different each other, though.
Furthermore, add Hard drives on each Storage Nodes and create a partition "/dev/sdb1" for this settings.
[1] Install Swift-Account, Swift-Container, Swift-Object and others on all Storage Node like follows.
# install from Newton, EPEL

[root@snode01 ~]#
yum --enablerepo=centos-openstack-newton,epel -y install openstack-swift-account openstack-swift-container openstack-swift-object xfsprogs rsync openssh-clients
[2] Format free space of disk (/dev/sdb1 on this example) with XFS and mount on srv/node on allStorage Node like follows. (the number "device*" is different on each Storage Nodes)
[root@snode01 ~]#
mkfs.xfs -i size=1024 -s size=4096 /dev/sdb1 

meta-data=/dev/sdb1              isize=1024   agcount=4, agsize=1310656 blks
         =                       sectsz=4096  attr=2, projid32bit=1
         =                       crc=0        finobt=0
data     =                       bsize=4096   blocks=5242624, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=0
log      =internal log           bsize=4096   blocks=2560, version=2
         =                       sectsz=4096  sunit=1 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
[root@snode01 ~]#
mkdir -p /srv/node/device0

[root@snode01 ~]#
mount -o noatime,nodiratime,nobarrier /dev/sdb1 /srv/node/device0

[root@snode01 ~]#
chown -R swift. /srv/node

[root@snode01 ~]#
vi /etc/fstab
# add to the end

/dev/sdb1               /srv/node/device0       xfs     noatime,nodiratime,nobarrier 0 0
[3] Copy Swift Ring files from the Swift Proxy Node to all Storage Nodes.
[root@proxy ~]#
scp /etc/swift/*.gz 10.0.0.71:/etc/swift/ 

root@10.0.0.71's password:
account.ring.gz                    100% 3912     3.8KB/s   00:00
container.ring.gz                  100% 3904     3.8KB/s   00:00
object.ring.gz                     100% 3895     3.8KB/s   00:00
[4] Configure Swift and Rsync on all Storage Nodes.
[root@snode01 ~]#
chown swift. /etc/swift/*.gz

[root@snode01 ~]#
vi /etc/swift/swift.conf
# set the value which is set on Proxy Node

[swift-hash]
swift_hash_path_suffix =
swift_shared_path
swift_hash_path_prefix = swift_shared_path
[root@snode01 ~]#
vi /etc/swift/account-server.conf
# line 6: change

bind_ip =
0.0.0.0

bind_port = 6202
[root@snode01 ~]#
vi /etc/swift/container-server.conf
# line 6: change

bind_ip =
0.0.0.0

bind_port = 6201
[root@snode01 ~]#
vi /etc/swift/object-server.conf
# line 6: change

bind_ip =
0.0.0.0

bind_port = 6200
[root@snode01 ~]#
vi /etc/rsyncd.conf
# add follows to the end

pid file = /var/run/rsyncd.pid
log file = /var/log/rsyncd.log
uid = swift
gid = swift
# specify the IP address of each storage node
address = 10.0.0.71

[account]
path            = /srv/node
read only       = false
write only      = no
list            = yes
incoming chmod  = 0644
outgoing chmod  = 0644
max connections = 25
lock file =     /var/lock/account.lock

[container]
path            = /srv/node
read only       = false
write only      = no
list            = yes
incoming chmod  = 0644
outgoing chmod  = 0644
max connections = 25
lock file =     /var/lock/container.lock

[object]
path            = /srv/node
read only       = false
write only      = no
list            = yes
incoming chmod  = 0644
outgoing chmod  = 0644
max connections = 25
lock file =     /var/lock/object.lock

[swift_server]
path            = /etc/swift
read only       = true
write only      = no
list            = yes
incoming chmod  = 0644
outgoing chmod  = 0644
max connections = 5
lock file =     /var/lock/swift_server.lock
[5] On Storage Node, if SELinux is enabled, change policy like follows. Replace the number of device "device*" to each Node's one.
[root@snode01 ~]#
semanage fcontext -a -t swift_data_t /srv/node/device0

[root@snode01 ~]#
restorecon /srv/node/device0
[6] On Storage Node, if Firewalld is running, allow service ports.
[root@snode01 ~]#
firewall-cmd --add-port={873/tcp,6200/tcp,6201/tcp,6202/tcp} --permanent

success
[root@snode01 ~]#
firewall-cmd --reload

success
[7] Start Swift services.
[root@snode01 ~]#
systemctl start rsyncd

[root@snode01 ~]#
systemctl enable rsyncd

[root@snode01 ~]#
for ringtype in account container object; do 
    systemctl start openstack-swift-$ringtype
    systemctl enable openstack-swift-$ringtype
    for service in replicator updater auditor; do
        if [ $ringtype != 'account' ] || [ $service != 'updater' ]; then
            systemctl start openstack-swift-$ringtype-$service
            systemctl enable openstack-swift-$ringtype-$service
        fi
    done
done
 
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