Chapter 8. Basic Red Hat Ceph Storage client setup
Chapter 8. Basic Red Hat Ceph Storage client setup As a storage administrator, you have to set up client machines with basic configuration to interact with the storage cluster. Most client machines only need the ceph-common package and its dependencies installed. It will supply the basic ceph and rados commands, as well as other commands like mount.ceph and rbd . 8.1. Configuring file setup on client machines Client machines generally need a smaller configuration file than a full-fledged storage cluster member. You can generate a minimal configuration file which can give details to clients to reach the Ceph monitors. Prerequisites A running Red Hat Ceph Storage cluster. Root access to the nodes. Procedure On the node where you want to set up the files, create a directory ceph in the /etc folder: Example Navigate to /etc/ceph directory: Example Generate the configuration file in the ceph directory: Example The contents of this file should be installed in /etc/ceph/ceph.conf path. You can use this configuration file to reach the Ceph monitors. 8.2. Setting-up keyring on client machines Most Ceph clusters are run with the authentication enabled, and the client needs the keys in order to communicate with cluster machines. You can generate the keyring which can give details to clients to reach the Ceph monitors. Prerequisites A running Red Hat Ceph Storage cluster. Root access to the nodes. Procedure On the node where you want to set up the keyring, create a directory ceph in the /etc folder: Example Navigate to /etc/ceph directory in the ceph directory: Example Generate the keyring for the client: Syntax Example Verify the output in the ceph.keyring file: Example The resulting output should be put into a keyring file, for example /etc/ceph/ceph.keyring .
mkdir /etc/ceph/ cd /etc/ceph/ ceph config generate-minimal-conf minimal ceph.conf for 417b1d7a-a0e6-11eb-b940-001a4a000740 [global] fsid = 417b1d7a-a0e6-11eb-b940-001a4a000740 mon_host = [v2:10.74.249.41:3300/0,v1:10.74.249.41:6789/0] mkdir /etc/ceph/ cd /etc/ceph/ ceph auth get-or-create client. CLIENT_NAME -o /etc/ceph/ NAME_OF_THE_FILE ceph auth get-or-create client.fs -o /etc/ceph/ceph.keyring cat ceph.keyring [client.fs] key = AQAvoH5gkUCsExAATz3xCBLd4n6B6jRv+Z7CVQ==