Configuring Object Storage

Defining Ceph Service Requirements

1. Open the site.yml file.

   1	vim site.yml

2. Add the definition of rgws under the hosts option.

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   - hosts: - mons - osds # - mdss - rgws # - nfss # - rbdmirrors - clients - mgrs # - iscsigws # - iscsi-gws # for backward compatibility only! # - grafana-server # - rgwloadbalancers

Defining the Cluster Host Service

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[mons]
ceph1

[mgrs]
ceph1

[osds]
ceph1
ceph2

#[mdss]
#ceph1
#ceph2

[rgws]
ceph1
ceph2

[clients]
client3


[grafana-server]
ceph1

Defining the Ceph Cluster Configuration

In the all.yml file, set the front-end network type, port, and number of RGW instances on each RGW node.

• Online Ceph download mode

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  ceph_origin: repository ceph_repository: community ceph_mirror: http://download.ceph.com ceph_stable_release: nautilus ceph_stable_repo: "{{ ceph_mirror }}/rpm-{{ ceph_stable_release }}" ceph_stable_redhat_distro: el7 monitor_interface: enp133s0 journal_size: 5120 public_network: 172.19.106.0/0 cluster_network: 172.19.106.0/0 osd_objectstore: bluestore ## Rados Gateway options radosgw_frontend_type: beast radosgw_frontend_port: 12345 radosgw_interface: "{{monitor_interface}}" radosgw_num_instances: 3

  Table 1 describes the parameters.

  Table 1 Parameter description

  Parameter	Description
  monitor_interface	Network interface device ID of the public network.
  radosgw_frontend_type	RGW front-end type. This parameter is optional.
  radosgw_frontend_port	RGW front-end port. This parameter is optional.
  radosgw_num_instances	Number of RGW instances on each node. RGW access ports are numbered incrementally based on the port number specified by radosgw_frontend_port.

• Offline Ceph download mode

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  ceph_origin: distro ceph_repository: local ceph_stable_release: nautilus

Setting the Permission of the RGW Service

In the rgws.yml file, set pg_num and size of the default RGW data pool and index pool, and specify whether the RGW service can access private devices.

• CentOS 7.6

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  rgw_create_pools: defaults.rgw.buckets.data: pg_num: 8 size: "" defaults.rgw.buckets.index: pg_num: 8 size: "" ########### # SYSTEMD # ########### # ceph_rgw_systemd_overrides will override the systemd settings # for the ceph-rgw services. # For example,to set "PrivateDevices=false" you can specify: ceph_rgw_systemd_overrides: Service: PrivateDevices: False

• openEuler 20.03

  rgw_create_pools: 
    defaults.rgw.buckets.data: 
        pg_num: 64 
        size: 3 
    defaults.rgw.buckets.index: 
        pg_num: 64
        size: 3 
  ########### 
  # SYSTEMD # 
  ########### 
  # ceph_rgw_systemd_overrides will override the systemd settings 
  # for the ceph-rgw services. 
  # For example,to set "PrivateDevices=false" you can specify: 
  ceph_rgw_systemd_overrides: 
    Service: 
       PrivateDevices: False

Defining OSDs

Define the required OSDs by referring to Defining OSDs.