1 环境介绍与配置
1.1 ceph介绍
#ceph架构 #ceph支持的三种接口： 1 Object：有原生的API，而且也兼容Swift和S3的API。 2 Block：支持精简配置、快照、克隆。 3 File：Posix接口，支持快照。 
#ceph的三种类型的优缺点：
1.2 环境介绍
[root@ceph135 ~]# cat /etc/redhat-release
CentOS Linux release 8.1.1911 (Core)
#ceph
Octopus 15.2.3
#这个版本支持的系统
CentOS 8
CentOS 7 (partial–see below)#部分支持
Ubuntu 18.04 (Bionic)
Debian Buster
Container image (based on CentOS 8)
注意：dashboard、prometheus和restful manager模块不能在CentOS7版本中使用，因为CentOS7缺少对Python3模块的依赖。
#网络设计
172.16.1.0/24 #Management Network 可不用设
172.16.2.0/24 #Public Network
172.16.3.0/24 #Cluster Network
#每台ceph节点下除系统盘外，挂两个30G硬盘
ceph135 eth0:172.16.1.135 eth1:172.16.2.135 eth2:172.16.3.135 1c1g
ceph136 eth0:172.16.1.136 eth1:172.16.2.136 eth2:172.16.3.136 1c1g
ceph137 eth0:172.16.1.137 eth1:172.16.2.137 eth2:172.16.3.137 1c1g
1.2 基础环境准备
1.2.1 关闭selinux、防火墙
#关闭防火墙
systemctl stop firewalld.service
systemctl disable firewalld.service
firewall-cmd --state
#关闭SElinux
sed -i '/^SELINUX=.*/c SELINUX=disabled' /etc/selinux/config
sed -i 's/^SELINUXTYPE=.*/SELINUXTYPE=disabled/g' /etc/selinux/config
grep --color=auto '^SELINUX' /etc/selinux/config
setenforce 0
reboot
1.2.2 设置主机名，每台设置
hostnamectl set-hostname ceph135
su -
1.2.3 设置网卡对应网卡IP（自行更改网卡名进行替换IP）
#vim /etc/sysconfig/network-scripts/ifcfg-eth0
NetName=eth0
rm -f /etc/sysconfig/network-scripts/ifcfg-$NetName
nmcli con add con-name $NetName ifname $NetName autoconnect yes type ethernet \
ip4 172.16.1.135/24 ipv4.dns "114.114.114.114" ipv4.gateway "172.16.1.254"
#设置完成后执行下reload网络
nmcli c reload
#（可选）如要指定默认路由，只要在对应的网卡配置加上以下配置，如： #vim /etc/sysconfig/network-scripts/ifcfg-eth0
IPV4_ROUTE_METRIC=0
1.2.4 在hosts里添加对应的ceph节点信息
#vim /etc/hosts
#[ceph]
172.16.2.135 ceph135
172.16.2.136 ceph136
172.16.2.137 ceph137
1.2.5 添加Octopus版本的yum源
#vim /etc/yum.repos.d/ceph.repo
[Ceph]
name=Ceph packages for $basearch
baseurl=https://mirrors.aliyun.com/ceph/rpm-octopus/el8/$basearch
enabled=1
gpgcheck=0
type=rpm-md
[Ceph-noarch]
name=Ceph noarch packages
baseurl=https://mirrors.aliyun.com/ceph/rpm-octopus/el8/noarch
enabled=1
gpgcheck=0
type=rpm-md
[ceph-source]
name=Ceph source packages
baseurl=https://mirrors.aliyun.com/ceph/rpm-octopus/el8/SRPMS
enabled=1
gpgcheck=0
type=rpm-md
#系统yum源更换成阿里源，并更新yum文件缓存
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-8.repo
sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo
yum clean all && yum makecache
1.2.6 时间同步
#个人比较喜欢用以下方式来同步时间
rpm -ivh http://mirrors.wlnmp.com/centos/wlnmp-release-centos.noarch.rpm
dnf install wntp
ntpdate ntp3.aliyun.com
echo "*/3 * * * * ntpdate ntp3.aliyun.com &> /dev/null" > /tmp/crontab
crontab /tmp/crontab
1.2.7（可选）安装基础软件
yum install net-tools wget vim bash-completion lrzsz unzip zip -y
2 ceph安装与配置
2.1 cephadm工具部署
#在15版本，支持使用cephadm工具部署，ceph-deploy在14版本前都支持 #拉取最新的cephadm，并赋权
curl --silent --remote-name --location https://github.com/ceph/ceph/raw/octopus/src/cephadm/cephadm
chmod +x cephadm
#使用cephadm获取octopus最新版本并安装
[root@ceph135 ~]# dnf install python3 podman #每台节点安装
[root@ceph135 ~]# ./cephadm add-repo --release octopus #可不操作，因为前面我们已经添加了国内ceph源
INFO:root:Writing repo to /etc/yum.repos.d/ceph.repo...
INFO:cephadm:Enabling EPEL...
[root@ceph135 ~]# ./cephadm install
INFO:cephadm:Installing packages ['cephadm']...
[root@ceph135 ~]# which cephadm
/usr/sbin/cephadm
2.2 创建ceph新集群
2.2.1 指定管理节点
#创建一个可以被任何访问Ceph集群的主机访问的网络，指定mon-ip，并将生成的配置文件写进/etc/ceph目录里
[root@ceph135 ~]# mkdir -p /etc/ceph
[root@ceph135 ~]# cephadm bootstrap --mon-ip 172.16.2.135
INFO:cephadm:Verifying podman|docker is present...
INFO:cephadm:Verifying lvm2 is present...
INFO:cephadm:Verifying time synchronization is in place...
INFO:cephadm:Unit chronyd.service is enabled and running
INFO:cephadm:Repeating the final host check...
INFO:cephadm:podman|docker (/usr/bin/podman) is present
INFO:cephadm:systemctl is present
INFO:cephadm:lvcreate is present
INFO:cephadm:Unit chronyd.service is enabled and running
INFO:cephadm:Host looks OK
INFO:root:Cluster fsid: b3add0aa-aee7-11ea-a3e4-5e7ce92c6bef
INFO:cephadm:Verifying IP 172.16.2.135 port 3300 ...
INFO:cephadm:Verifying IP 172.16.2.135 port 6789 ...
INFO:cephadm:Mon IP 172.16.2.135 is in CIDR network 172.16.2.0/24
INFO:cephadm:Pulling latest docker.io/ceph/ceph:v15 container...
INFO:cephadm:Extracting ceph user uid/gid from container image...
INFO:cephadm:Creating initial keys...
INFO:cephadm:Creating initial monmap...
INFO:cephadm:Creating mon...
INFO:cephadm:Waiting for mon to start...
INFO:cephadm:Waiting for mon...
INFO:cephadm:Assimilating anything we can from ceph.conf...
INFO:cephadm:Generating new minimal ceph.conf...
INFO:cephadm:Restarting the monitor...
INFO:cephadm:Setting mon public_network...
INFO:cephadm:Creating mgr...
INFO:cephadm:Wrote keyring to /etc/ceph/ceph.client.admin.keyring
INFO:cephadm:Wrote config to /etc/ceph/ceph.conf
INFO:cephadm:Waiting for mgr to start...
INFO:cephadm:Waiting for mgr...
INFO:cephadm:mgr not available, waiting (1/10)...
INFO:cephadm:mgr not available, waiting (2/10)...
INFO:cephadm:Enabling cephadm module...
INFO:cephadm:Waiting for the mgr to restart...
INFO:cephadm:Waiting for Mgr epoch 5...
INFO:cephadm:Setting orchestrator backend to cephadm...
INFO:cephadm:Generating ssh key...
INFO:cephadm:Wrote public SSH key to to /etc/ceph/ceph.pub
INFO:cephadm:Adding key to root@localhost's authorized_keys... INFO:cephadm:Adding host ceph135... INFO:cephadm:Deploying mon service with default placement... INFO:cephadm:Deploying mgr service with default placement... INFO:cephadm:Deploying crash service with default placement... INFO:cephadm:Enabling mgr prometheus module... INFO:cephadm:Deploying prometheus service with default placement... INFO:cephadm:Deploying grafana service with default placement... INFO:cephadm:Deploying node-exporter service with default placement... INFO:cephadm:Deploying alertmanager service with default placement... INFO:cephadm:Enabling the dashboard module... INFO:cephadm:Waiting for the mgr to restart... INFO:cephadm:Waiting for Mgr epoch 12... INFO:cephadm:Generating a dashboard self-signed certificate... INFO:cephadm:Creating initial admin user... INFO:cephadm:Fetching dashboard port number... INFO:cephadm:Ceph Dashboard is now available at: URL: https://ceph135:8443/ User: admin Password: vcxbz7cubp INFO:cephadm:You can access the Ceph CLI with: sudo /usr/sbin/cephadm shell --fsid b3add0aa-aee7-11ea-a3e4-5e7ce92c6bef -c /etc/ceph/ceph.conf -k /etc/ceph/ceph.client.admin.keyring INFO:cephadm:Please consider enabling telemetry to help improve Ceph: ceph telemetry on For more information see: https://docs.ceph.com/docs/master/mgr/telemetry/ INFO:cephadm:Bootstrap complete. #至此，可登陆URL: https://ceph135:8443/，首次登陆要修改密码，进行验证
2.2.2 将ceph命令映射到本地
#Cephadm不需要在主机上安装任何Ceph包。但是，建议启用对ceph命令的简单访问。 #cephadm shell命令在安装了所有Ceph包的容器中启动一个bash shell。默认情况下，如果在主机上的/etc/ceph中找到配置和keyring文件，它们将被传递到容器环境中，这样外壳就可以完全正常工作了。
[root@ceph135 ~]# cephadm shell
INFO:cephadm:Inferring fsid 9849edac-a547-11ea-a767-12702e1b568d
INFO:cephadm:Using recent ceph image docker.io/ceph/ceph:v15
[ceph: root@ceph135 /]# alias ceph='cephadm shell -- ceph'
[ceph: root@ceph135 /]# exit
exit
[root@ceph135 ~]# cephadm install ceph-common
INFO:cephadm:Installing packages ['ceph-common']...
[root@ceph135 ~]# ceph -v
ceph version 15.2.3 (d289bbdec69ed7c1f516e0a093594580a76b78d0) octopus (stable)
[root@ceph135 ~]# ceph status
cluster:
id: b3add0aa-aee7-11ea-a3e4-5e7ce92c6bef
health: HEALTH_WARN
Reduced data availability: 1 pg inactive
OSD count 0 < osd_pool_default_size 3
services:
mon: 1 daemons, quorum ceph135 (age 19m)
mgr: ceph135.omlfxo(active, since 15m)
osd: 0 osds: 0 up, 0 in
data:
pools: 1 pools, 1 pgs
objects: 0 objects, 0 B
usage: 0 B used, 0 B / 0 B avail
pgs: 100.000% pgs unknown
1 unknown
[root@ceph135 ~]# ceph health
HEALTH_WARN Reduced data availability: 1 pg inactive; OSD count 0 < osd_pool_default_size 3
2.2.3 添加新服务器进ceph集群
[root@ceph135 ~]# ssh-copy-id -f -i /etc/ceph/ceph.pub root@ceph136
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/etc/ceph/ceph.pub"
The authenticity of host 'ceph136 (172.16.2.136)' can't be established. ECDSA key fingerprint is SHA256:UiF5sLefJuaY6uueUxyu0t0Xdeha8BPZXGvQHZrco1M. ECDSA key fingerprint is MD5:87:59:6e:b5:42:6d:c4:02:d8:ef:29:56:4e:0d:1d:09. Are you sure you want to continue connecting (yes/no)? yes root@ceph136's password:
Number of key(s) added: 1
Now try logging into the machine, with: "ssh 'root@ceph136'"
and check to make sure that only the key(s) you wanted were added.
[root@ceph135 ~]# ssh-copy-id -f -i /etc/ceph/ceph.pub root@ceph137
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/etc/ceph/ceph.pub"
The authenticity of host 'ceph137 (172.16.2.137)' can't be established. ECDSA key fingerprint is SHA256:UiF5sLefJuaY6uueUxyu0t0Xdeha8BPZXGvQHZrco1M. ECDSA key fingerprint is MD5:87:59:6e:b5:42:6d:c4:02:d8:ef:29:56:4e:0d:1d:09. Are you sure you want to continue connecting (yes/no)? yes root@ceph137's password:
Number of key(s) added: 1
Now try logging into the machine, with: "ssh 'root@ceph137'"
and check to make sure that only the key(s) you wanted were added.
[root@ceph135 ~]# ceph orch host add ceph136
Added host 'ceph136'
[root@ceph135 ~]# ceph orch host add ceph137
Added host 'ceph137'
2.2.4 部署添加 monitor
#设置public_network网段，提供给client访问
ceph config set mon public_network 172.16.2.0/24
#选择需要设置mon的节点，我这里是全选
[root@ceph135 ~]# ceph orch host label add ceph135 mon
Added label mon to host ceph135
[root@ceph135 ~]# ceph orch host label add ceph136 mon
Added label mon to host ceph136
[root@ceph135 ~]# ceph orch host label add ceph137 mon
Added label mon to host ceph137
[root@ceph135 ~]# ceph orch host ls
HOST ADDR LABELS STATUS
ceph135 ceph135 mon
ceph136 ceph136 mon
ceph137 ceph137 mon
#告诉cephadm根据标签部署mon，这步需要等待各节点拉取images并启动容器
[root@ceph135 ~]# ceph orch apply mon label:mon
Scheduled mon update...
#具体验证是否安装完成，其他两台节点可查看下
[root@ceph136 ~]# podman ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
a24ab51b5f62 docker.io/prom/node-exporter:latest --no-collector.ti... 5 minutes ago Up 5 minutes ago ceph-b3add0aa-ae
37ef832554fd docker.io/ceph/ceph:v15 -n mon.ceph136 -f... 6 minutes ago Up 6 minutes ago ceph-b3add0aa-ae
10122c06ad1a docker.io/ceph/ceph:v15 -n mgr.ceph136.iy... 7 minutes ago Up 7 minutes ago ceph-b3add0aa-ae
df5275a6684f docker.io/ceph/ceph:v15 -n client.crash.c... 12 minutes ago Up 12 minutes ago ceph-b3add0aa-ae
[root@ceph136 ~]# podman images
REPOSITORY TAG IMAGE ID CREATED SIZE
docker.io/ceph/ceph v15 d72755c420bc 2 weeks ago 1.13 GB
docker.io/prom/node-exporter latest 14191dbfb45b 2 weeks ago 27.7 MB
2.2.5 部署OSD
#查看可使用的硬盘
[root@ceph135 ~]# ceph orch device ls
HOST PATH TYPE SIZE DEVICE AVAIL REJECT REASONS
ceph135 /dev/sdb hdd 32.0G QEMU_HARDDISK_drive-scsi1 True
ceph135 /dev/sdc hdd 32.0G QEMU_HARDDISK_drive-scsi2 True
ceph135 /dev/sda hdd 20.0G QEMU_HARDDISK_drive-scsi0 False locked
ceph136 /dev/sdb hdd 32.0G QEMU_HARDDISK_drive-scsi1 True
ceph136 /dev/sdc hdd 32.0G QEMU_HARDDISK_drive-scsi2 True
ceph136 /dev/sda hdd 20.0G QEMU_HARDDISK_drive-scsi0 False locked
ceph137 /dev/sdb hdd 32.0G QEMU_HARDDISK_drive-scsi2 True
ceph137 /dev/sdc hdd 32.0G QEMU_HARDDISK_drive-scsi1 True
ceph137 /dev/sda hdd 20.0G QEMU_HARDDISK_drive-scsi0 False locked
#为了图方便，我这里直接使用所有可用硬盘
[root@ceph135 ~]# ceph orch apply osd --all-available-devices
NAME HOST DATA DB WAL
all-available-devices ceph135 /dev/sdb - -
all-available-devices ceph135 /dev/sdc - -
all-available-devices ceph136 /dev/sdb - -
all-available-devices ceph136 /dev/sdc - -
all-available-devices ceph137 /dev/sdb - -
all-available-devices ceph137 /dev/sdc - -
#添加单块盘的方式
ceph orch daemon add osd ceph135:/dev/sdb
#验证部署情况
[root@ceph135 ~]# ceph osd df
ID CLASS WEIGHT REWEIGHT SIZE RAW USE DATA OMAP META AVAIL %USE VAR PGS STATUS
0 hdd 0.03119 1.00000 32 GiB 1.0 GiB 5.4 MiB 0 B 1 GiB 31 GiB 3.14 1.00 1 up
1 hdd 0.03119 1.00000 32 GiB 1.0 GiB 5.4 MiB 0 B 1 GiB 31 GiB 3.14 1.00 0 up
2 hdd 0.03119 1.00000 32 GiB 1.0 GiB 5.4 MiB 0 B 1 GiB 31 GiB 3.14 1.00 0 up
3 hdd 0.03119 1.00000 32 GiB 1.0 GiB 5.4 MiB 0 B 1 GiB 31 GiB 3.14 1.00 1 up
4 hdd 0.03119 1.00000 32 GiB 1.0 GiB 5.4 MiB 0 B 1 GiB 31 GiB 3.14 1.00 0 up
5 hdd 0.03119 1.00000 32 GiB 1.0 GiB 5.4 MiB 0 B 1 GiB 31 GiB 3.14 1.00 1 up
TOTAL 192 GiB 6.0 GiB 32 MiB 0 B 6 GiB 186 GiB 3.14
MIN/MAX VAR: 1.00/1.00 STDDEV: 0
3 存储部署
3.1 CephFS部署
#部署cephfs的mds服务，指定集群名及mds的数量
[root@ceph135 ~]# ceph orch apply mds fs-cluster --placement=3
Scheduled mds.fs-cluster update...
#验证：
[root@ceph135 ~]# ceph -s
cluster:
id: b3add0aa-aee7-11ea-a3e4-5e7ce92c6bef
health: HEALTH_OK
services:
mon: 3 daemons, quorum ceph135,ceph136,ceph137 (age 47s)
mgr: ceph135.omlfxo(active, since 89m), standbys: ceph136.iyehke, ceph137.fywkvw
mds: 3 up:standby
osd: 6 osds: 6 up (since 20m), 6 in (since 20m)
data:
pools: 1 pools, 1 pgs
objects: 0 objects, 0 B
usage: 6.0 GiB used, 186 GiB / 192 GiB avail
pgs: 1 active+clean
3.2 部署RGW
#创建一个领域:
[root@ceph135 ~]# radosgw-admin realm create --rgw-realm=rgw-org --default
{
"id": "31424ff4-38a1-48d9-bab4-fcfe8d75efcc",
"name": "rgw-org",
"current_period": "06f0511d-58cd-4acd-aac1-da25ea785454",
"epoch": 1
}
#创建一个zonegroup
[root@ceph135 ~]# radosgw-admin zonegroup create --rgw-zonegroup=rgwgroup --master --default
{
"id": "35dcfee7-fa47-4e53-b41d-9718fd029782",
"name": "rgwgroup",
"api_name": "rgwgroup",
"is_master": "true",
"endpoints": [],
"hostnames": [],
"hostnames_s3website": [],
"master_zone": "",
"zones": [],
"placement_targets": [],
"default_placement": "",
"realm_id": "31424ff4-38a1-48d9-bab4-fcfe8d75efcc",
"sync_policy": {
"groups": []
}
}
#创建一个区域
[root@ceph135 ~]# radosgw-admin zone create --rgw-zonegroup=rgwgroup --rgw-zone=zone-dc1 --master --default
{
"id": "ec441ad3-1167-459d-9d1c-cf21e5625cbf",
"name": "zone-dc1",
"domain_root": "zone-dc1.rgw.meta:root",
"control_pool": "zone-dc1.rgw.control",
"gc_pool": "zone-dc1.rgw.log:gc",
"lc_pool": "zone-dc1.rgw.log:lc",
"log_pool": "zone-dc1.rgw.log",
"intent_log_pool": "zone-dc1.rgw.log:intent",
"usage_log_pool": "zone-dc1.rgw.log:usage",
"roles_pool": "zone-dc1.rgw.meta:roles",
"reshard_pool": "zone-dc1.rgw.log:reshard",
"user_keys_pool": "zone-dc1.rgw.meta:users.keys",
"user_email_pool": "zone-dc1.rgw.meta:users.email",
"user_swift_pool": "zone-dc1.rgw.meta:users.swift",
"user_uid_pool": "zone-dc1.rgw.meta:users.uid",
"otp_pool": "zone-dc1.rgw.otp",
"system_key": {
"access_key": "",
"secret_key": ""
},
"placement_pools": [
{
"key": "default-placement",
"val": {
"index_pool": "zone-dc1.rgw.buckets.index",
"storage_classes": {
"STANDARD": {
"data_pool": "zone-dc1.rgw.buckets.data"
}
},
"data_extra_pool": "zone-dc1.rgw.buckets.non-ec",
"index_type": 0
}
}
],
"realm_id": "31424ff4-38a1-48d9-bab4-fcfe8d75efcc"
}
#为特定领域和区域部署一组radosgw守护进程，这里只指定了两个节点开启rgw
[root@ceph135 ~]# ceph orch apply rgw rgw-org zone-dc1 --placement="2 ceph136 ceph137"
Scheduled rgw.rgw-org.zone-dc1 update...
#验证
[root@ceph135 ~]# ceph -s
cluster:
id: b3add0aa-aee7-11ea-a3e4-5e7ce92c6bef
health: HEALTH_WARN
1 daemons have recently crashed
services:
mon: 3 daemons, quorum ceph135,ceph136,ceph137 (age 9m)
mgr: ceph135.omlfxo(active, since 108m), standbys: ceph136.iyehke, ceph137.fywkvw
mds: 3 up:standby
osd: 6 osds: 6 up (since 39m), 6 in (since 39m)
rgw: 2 daemons active (rgw-org.zone-dc1.ceph136.ddujbi, rgw-org.zone-dc1.ceph137.mnfhhp)
task status:
data:
pools: 5 pools, 129 pgs
objects: 105 objects, 5.4 KiB
usage: 6.1 GiB used, 186 GiB / 192 GiB avail
pgs: 1.550% pgs not active
127 active+clean
2 peering
io:
client: 7.9 KiB/s rd, 0 B/s wr, 8 op/s rd, 4 op/s wr
progress:
PG autoscaler decreasing pool 5 PGs from 32 to 8 (0s)
[............................]
#为RGW开启dashborad #创建rgw的管理用户
[root@ceph135 ~]# radosgw-admin user create --uid=admin --display-name=admin --system
{
"user_id": "admin",
"display_name": "admin",
"email": "",
"suspended": 0,
"max_buckets": 1000,
"subusers": [],
"keys": [
{
"user": "admin",
"access_key": "XY518C4I2RO51D4S2JGT",
"secret_key": "e9akFxQwOM8Y9zxDum4CLCQEOXaImVomGiqIsutC"
}
],
"swift_keys": [],
"caps": [],
"op_mask": "read, write, delete",
"system": "true",
"default_placement": "",
"default_storage_class": "",
"placement_tags": [],
"bucket_quota": {
"enabled": false,
"check_on_raw": false,
"max_size": -1,
"max_size_kb": 0,
"max_objects": -1
},
"user_quota": {
"enabled": false,
"check_on_raw": false,
"max_size": -1,
"max_size_kb": 0,
"max_objects": -1
},
"temp_url_keys": [],
"type": "rgw",
"mfa_ids": []
}
#设置dashboard凭证
[root@ceph135 ~]# ceph dashboard set-rgw-api-access-key XY518C4I2RO51D4S2JGT
Option RGW_API_ACCESS_KEY updated
[root@ceph135 ~]# ceph dashboard set-rgw-api-secret-key e9akFxQwOM8Y9zxDum4CLCQEOXaImVomGiqIsutC
Option RGW_API_SECRET_KEY updated
#设置禁用证书验证、http访问方式及使用admin账号
[root@ceph135 ~]# ceph dashboard set-rgw-api-ssl-verify False
Option RGW_API_SSL_VERIFY updated
[root@ceph135 ~]# ceph dashboard set-rgw-api-scheme http
Option RGW_API_SCHEME updated
[root@ceph135 ~]# ceph dashboard set-rgw-api-host 172.16.2.137
Option RGW_API_HOST updated
[root@ceph135 ~]# ceph dashboard set-rgw-api-port 80
Option RGW_API_PORT updated
[root@ceph135 ~]# ceph dashboard set-rgw-api-user-id admin
Option RGW_API_USER_ID updated
#重启RGW
[root@ceph135 ~]# ceph orch restart rgw
restart rgw.rgw-org.zone-dc1.ceph136.ddujbi from host 'ceph136'
restart rgw.rgw-org.zone-dc1.ceph137.mnfhhp from host 'ceph137'
X.部署过程遇到的问题
eg1.
[root@ceph135 ~]# cephadm shell
ERROR: Cannot infer an fsid, one must be specified: ['00482894-a564-11ea-8617-12702e1b568d', '9849edac-a547-11ea-a767-12702e1b568d']
解决方案：删除掉old集群数据，只留新集群文件夹即可
[root@ceph135 ceph]# cd /var/lib/ceph
[root@ceph135 ceph]# ls
00482894-a564-11ea-8617-12702e1b568d 9849edac-a547-11ea-a767-12702e1b568d
[root@ceph135 ceph]# rm -rf 9849edac-a547-11ea-a767-12702e1b568d/
[root@ceph135 ceph]# ll
eg2.[root@ceph135 ~]# ./cephadm add-repo --release octopus
-bash: ./cephadm: /usr/bin/python3: bad interpreter: No such file or directory
解决方案：dnf install python3
eg3.[root@ceph135 ~]# ./cephadm install
Unable to locate any of ['podman', 'docker']
解决方案：dnf install -y podman
eg4.ERROR: lvcreate binary does not appear to be installed
解决方案：yum install lvm2
今天的文章CentOS8安装与配置Ceph Octopus教程分享到此就结束了，感谢您的阅读。
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