Cloud Storage with Red Hat Ceph Storage

Procedure 9.1. Instructions

1. Log in to clienta as the admin user.

   [student@workstation ~]$ ssh admin@clienta
   [admin@clienta ~]$

2. Create an Amazon S3 API user called operator. Use 12345 as the S3 access key and 67890 as the secret key.

   [admin@clienta ~]$ sudo cephadm shell -- radosgw-admin user create \
     --uid="operator" --display-name="S3 Operator" --email="operator@example.com" \
     --access_key="12345" --secret="67890"
   {
       "user_id": "operator",
       "display_name": "S3 Operator",
       "email": "operator@example.com",
       "suspended": 0,
       "max_buckets": 1000,
       "subusers": [],
       "keys": [
           {
               "user": "operator",
               "access_key": "12345",
               "secret_key": "67890"
           }
       ],
       "swift_keys": [],
       "caps": [],
       "op_mask": "read, write, delete",
   ...output omitted...

3. Configure the AWS CLI tool to use operator credentials. Enter 12345 as the access key and 67890 as the secret key.

   [admin@clienta ~]$ aws configure --profile=ceph
   AWS Access Key ID [None]: 12345
   AWS Secret Access Key [None]: 67890
   Default region name [None]: Enter
   Default output format [None]: Enter

4. Create a bucket called testbucket. List the created bucket.

   [admin@clienta ~]$ aws --profile=ceph \
     --endpoint=http://serverc:80 s3 mb s3://testbucket
   make_bucket: testbucket
   [admin@clienta ~]$ aws --profile=ceph --endpoint=http://serverc:80 s3 ls
   2021-10-05 21:51:37 testbucket

5. Create a 10 MB file called 10MB.bin. Upload the file to testbucket.

   [admin@clienta ~]$ dd if=/dev/zero of=/tmp/10MB.bin bs=1024K count=10
   10+0 records in
   10+0 records out
   10485760 bytes (10 MB, 10 MiB) copied, 0.00894909 s, 1.2 GB/s
   [admin@clienta ~]$ aws --profile=ceph --endpoint=http://serverc:80 \
     --acl=public-read-write s3 cp /tmp/10MB.bin s3://testbucket/10MB.bin
   upload: ../../tmp/10MB.bin to s3://testbucket/10MB.bin

6. Verify that the S3 object is accessible using path-style URLs.

   [admin@clienta ~]$ wget -O /dev/null http://serverc:80/testbucket/10MB.bin
   --2021-10-05 22:03:37--  http://serverc/testbucket/10MB.bin
   Resolving serverc (serverc)... 172.25.250.12
   Connecting to serverc (serverc)|172.25.250.12|:80... connected.
   HTTP request sent, awaiting response... 200 OK
   Length: 10485760 (10M) [application/octet-stream]
   
   Saving to: ‘/dev/null’
   
   10MB.bin  100%[===================================>]  10.00M  --.-KB/s  in 0.02s

7. Use the radosgw-admin command to view the metadata of the testbucket bucket.

   [admin@clienta ~]$ sudo cephadm shell -- radosgw-admin bucket list
   [
     "testbucket"
   ]
   
   [admin@clienta ~]$ sudo cephadm shell -- radosgw-admin metadata \
     get bucket:testbucket
   {
       "key": "bucket:testbucket",
       "ver": {
           "tag": "_2d3Y6puJve1TnYs0pwHc0Go",
           "ver": 1
       },
       "mtime": "2021-10-06T01:51:37.514627Z",
       "data": {
           "bucket": {
               "name": "testbucket",
               "marker": "cb16a524-d938-4fa2-837f-d1f2011676e2.54360.1",
               "bucket_id": "cb16a524-d938-4fa2-837f-d1f2011676e2.54360.1",
               "tenant": "",
               "explicit_placement": {
                   "data_pool": "",
                   "data_extra_pool": "",
                   "index_pool": ""
               }
           },
           "owner": "operator",
           "creation_time": "2021-10-06T01:51:37.498002Z",
           "linked": "true",
           "has_bucket_info": "false"
       }
   }

8. Return to workstation as the student user.

   [admin@clienta ~]$ exit
   [student@workstation ~]$