Ceph Octopus : Ceph Object Gateway2021/04/01 |
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Enable Ceph Object Gateway (RADOSGW) to access to Ceph Cluster Storage via Amazon S3 or OpenStack Swift compatible API.
This example is based on the environment like follows.
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+--------------------+ | +----------------------+
| [dlp.srv.world] |10.0.0.30 | 10.0.0.31| [www.srv.world] |
| Ceph Client +-----------+-----------+ RADOSGW |
| | | | |
+--------------------+ | +----------------------+
+----------------------------+----------------------------+
| | |
|10.0.0.51 |10.0.0.52 |10.0.0.53
+-----------+-----------+ +-----------+-----------+ +-----------+-----------+
| [node01.srv.world] | | [node02.srv.world] | | [node03.srv.world] |
| Object Storage +----+ Object Storage +----+ Object Storage |
| Monitor Daemon | | | | |
| Manager Daemon | | | | |
+-----------------------+ +-----------------------+ +-----------------------+
|
| [1] | Transfer required files to RADOSGW Node and Configure it from Admin Node. |
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# transfer public key [root@node01 ~]# ssh-copy-id www # install required packages [root@node01 ~]# ssh www "dnf -y install centos-release-ceph-octopus epel-release" [root@node01 ~]# ssh www "dnf -y install ceph-radosgw"
[root@node01 ~]#
vi /etc/ceph/ceph.conf # add to the end # client.rgw.(Node Name) [client.rgw.www] # IP address of the Node host = 10.0.0.31 # set listening port rgw frontends = "civetweb port=8080" # DNS name rgw dns name = www.srv.world # transfer files [root@node01 ~]# scp /etc/ceph/ceph.conf www:/etc/ceph/ ceph.conf 100% 374 342.6KB/s 00:00[root@node01 ~]# scp /etc/ceph/ceph.client.admin.keyring www:/etc/ceph/ ceph.client.admin.keyring 100% 151 73.7KB/s 00:00 # configure RADOSGW
[root@node01 ~]# ssh www \
"mkdir -p /var/lib/ceph/radosgw/ceph-rgw.www; \
ceph auth get-or-create client.rgw.www osd 'allow rwx' mon 'allow rw' -o /var/lib/ceph/radosgw/ceph-rgw.www/keyring; \
chown ceph. /etc/ceph/ceph.*; \
chown -R ceph. /var/lib/ceph/radosgw; \
systemctl enable --now ceph-radosgw@rgw.www; \
firewall-cmd --add-port=8080/tcp --permanent; firewall-cmd --reload"
# verify status # that's OK if following answers shown [root@node01 ~]# curl www.srv.world:8080 <?xml version="1.0" encoding="UTF-8"?><ListAllMyBucketsResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Owner><ID>anonymous</ID><DisplayName></DisplayName></Owner><Buckets></Buckets></ListAllMyBucketsResult> |
| [2] | On Object Gateway Node, Create a S3 compatible user who can authenticate to Object Gateway. |
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# for example, create [serverworld] user [root@www ~]# radosgw-admin user create --uid=serverworld --display-name="Server World" --email=admin@srv.world
{
"user_id": "serverworld",
"display_name": "Server World",
"email": "admin@srv.world",
"suspended": 0,
"max_buckets": 1000,
"subusers": [],
"keys": [
{
"user": "serverworld",
"access_key": "7WF7CDG48PIE8AT6FJJD",
"secret_key": "xFtMHO4qUY4D5qtTDNtNoAoHS4XriQNkbvSVcf0W"
}
],
"swift_keys": [],
"caps": [],
"op_mask": "read, write, delete",
"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": []
}
# show user list [root@www ~]# radosgw-admin user list
[
"serverworld"
]
[root@www ~]# radosgw-admin user info --uid=serverworld
{
"user_id": "serverworld",
"display_name": "Server World",
"email": "admin@srv.world",
"suspended": 0,
"max_buckets": 1000,
"subusers": [],
"keys": [
{
"user": "serverworld",
"access_key": "7WF7CDG48PIE8AT6FJJD",
"secret_key": "xFtMHO4qUY4D5qtTDNtNoAoHS4XriQNkbvSVcf0W"
}
.....
.....
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| [3] | Verify accessing with S3 interface to create Python test script on a Computer. |
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[root@dlp ~]#
vi s3_test.py import sys import boto3 from botocore.config import Config # user's access-key and secret-key you added on [2] section session = boto3.session.Session( aws_access_key_id = '7WF7CDG48PIE8AT6FJJD', aws_secret_access_key = 'xFtMHO4qUY4D5qtTDNtNoAoHS4XriQNkbvSVcf0W' ) # Object Gateway URL s3client = session.client( 's3', endpoint_url = 'http://10.0.0.31:8080', config = Config() ) # create [my-new-bucket] bucket = s3client.create_bucket(Bucket = 'my-new-bucket') # list Buckets print(s3client.list_buckets()) # remove [my-new-bucket] s3client.delete_bucket(Bucket = 'my-new-bucket') python3 s3_test.py
{'ResponseMetadata': {'RequestId': 'tx000000000000000000003-00606417bc-375f-default', 'HostId': '', 'HTTPStatusCode': 200, 'HTTPHeaders': {'transfer-encoding': 'chunked', 'x-amz-request-id': 'tx000000000000000000003-00606417bc-375f-default', 'content-type': 'application/xml', 'date': 'Wed, 31 Mar 2021 06:33:32 GMT'}, 'RetryAttempts': 0}, 'Buckets': [{'Name': 'my-new-bucket', 'CreationDate': datetime.datetime(2021, 3, 31, 6, 33, 26, 462000, tzinfo=tzutc())}], 'Owner': {'DisplayName': 'Server World', 'ID': 'serverworld'}}
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