CEPH

Aufbau

Storage-Node

• omar
• nelson
• bay

Admin-Node

• kekistan

Vorbreitung

Installation von ssh und ntp

Auf allen Nodes

• sudo apt -y install ntp ssh

ssh-key auf allen nodes

ssh-keygen

• root@kekistand:~# ssh-keygen

ssh-copy-id

• root@kekistand:~# ssh-copy-id nelson
• root@kekistand:~# ssh-copy-id bay
• root@kekistand:~# ssh-copy-id omar

Hilfskript

• cat /usr/local/sbin/root-all-nodes

#!/bin/bash
echo localhost
$*
LIST="bay omar nelson"
for k in $LIST
do
echo $k
ssh k $*
done

Anlegen des Users cephadmin und keyhandling

• root-all-nodes useradd -s /bin/bash -m cephadmin
• sudo -u cephadmin ssh-keygen -q
• root-all-nodes mkdir /home/cephadmin/.ssh
• root-all-nodes chown cephadmin.cephadmin /home/cephadmin/.ssh
• root-all-nodes chmod 700 /home/cephadmin/.ssh
• scp /home/cephadmin/.ssh/id_rsa.pub /tmp
• scp /home/cephadmin/.ssh/id_rsa.pub bay:/tmp
• scp /home/cephadmin/.ssh/id_rsa.pub nelson:/tmp
• scp /home/cephadmin/.ssh/id_rsa.pub omar:/tmp

Links

• https://linoxide.com/ubuntu-how-to/create-ceph-cluster-ubuntu-16-04/
• https://www.howtoforge.com/tutorial/how-to-install-a-ceph-cluster-on-ubuntu-16-04/