Saltar al contenutoSaltar alla navigazione delle pagine: pagina precedente [chiave d’accesso p]/pagina successiva [chiave d’accesso n]
Si applica a SUSE Enterprise Storage 5

A Procedura di esempio per l'installazione manuale di Ceph

Nella procedura seguente sono illustrati i comandi necessari per installare manualmente il cluster di memorizzazione Ceph.

  1. Generare le chiavi segrete per i servizi Ceph che si intende eseguire. È possibile utilizzare il seguente comando per generarle:

    python -c "import os ; import struct ; import time; import base64 ; \
     key = os.urandom(16) ; header = struct.pack('<hiih',1,int(time.time()),0,len(key)) ; \
     print base64.b64encode(header + key)"
  2. Aggiungere le chiavi ai portachiavi correlati. Prima per client.admin, quindi per i monitoraggi e gli altri servizi correlati, come OSD, Object Gateway o MDS:

    ceph-authtool -n client.admin \
     --create-keyring /etc/ceph/ceph.client.admin.keyring \
     --cap mds 'allow *' --cap mon 'allow *' --cap osd 'allow *'
    ceph-authtool -n mon. \
     --create-keyring /var/lib/ceph/bootstrap-mon/ceph-osceph-03.keyring \
     --set-uid=0 --cap mon 'allow *'
    ceph-authtool -n client.bootstrap-osd \
     --create-keyring /var/lib/ceph/bootstrap-osd/ceph.keyring \
     --cap mon 'allow profile bootstrap-osd'
    ceph-authtool -n client.bootstrap-rgw \
     --create-keyring /var/lib/ceph/bootstrap-rgw/ceph.keyring \
     --cap mon 'allow profile bootstrap-rgw'
    ceph-authtool -n client.bootstrap-mds \
     --create-keyring /var/lib/ceph/bootstrap-mds/ceph.keyring \
     --cap mon 'allow profile bootstrap-mds'
  3. Creare un monmap, un database di tutti i monitoraggi nel cluster:

    monmaptool --create --fsid eaac9695-4265-4ca8-ac2a-f3a479c559b1 \
     /tmp/tmpuuhxm3/monmap
    monmaptool --add osceph-02 192.168.43.60 /tmp/tmpuuhxm3/monmap
    monmaptool --add osceph-03 192.168.43.96 /tmp/tmpuuhxm3/monmap
    monmaptool --add osceph-04 192.168.43.80 /tmp/tmpuuhxm3/monmap
  4. Creare un nuovo portachiavi e importare in esso chiavi provenienti dai portachiavi admin e monitoraggi. Utilizzarli quindi per avviare i monitoraggi:

    ceph-authtool --create-keyring /tmp/tmpuuhxm3/keyring \
     --import-keyring /var/lib/ceph/bootstrap-mon/ceph-osceph-03.keyring
    ceph-authtool /tmp/tmpuuhxm3/keyring \
     --import-keyring /etc/ceph/ceph.client.admin.keyring
    sudo -u ceph ceph-mon --mkfs -i osceph-03 \
     --monmap /tmp/tmpuuhxm3/monmap --keyring /tmp/tmpuuhxm3/keyring
    systemctl restart ceph-mon@osceph-03
  5. Verificare lo stato dei monitoraggi in systemd:

    systemctl show --property ActiveState ceph-mon@osceph-03
  6. Verificare che Ceph sia in esecuzione e indichi lo stato del monitoraggio:

    ceph --cluster=ceph \
     --admin-daemon /var/run/ceph/ceph-mon.osceph-03.asok mon_status
  7. Verificare lo stato di servizi specifici utilizzando le chiavi esistenti:

    ceph --connect-timeout 5 --keyring /etc/ceph/ceph.client.admin.keyring \
     --name client.admin -f json-pretty status
    [...]
    ceph --connect-timeout 5 \
     --keyring /var/lib/ceph/bootstrap-mon/ceph-osceph-03.keyring \
     --name mon. -f json-pretty status
  8. Importare il portachiavi dai servizi Ceph esistenti e verificare lo stato:

    ceph auth import -i /var/lib/ceph/bootstrap-osd/ceph.keyring
    ceph auth import -i /var/lib/ceph/bootstrap-rgw/ceph.keyring
    ceph auth import -i /var/lib/ceph/bootstrap-mds/ceph.keyring
    ceph --cluster=ceph \
     --admin-daemon /var/run/ceph/ceph-mon.osceph-03.asok mon_status
    ceph --connect-timeout 5 --keyring /etc/ceph/ceph.client.admin.keyring \
     --name client.admin -f json-pretty status
  9. Preparare dischi/partizioni per gli OSD, utilizzando il file system XFS:

    ceph-disk -v prepare --fs-type xfs --data-dev --cluster ceph \
     --cluster-uuid eaac9695-4265-4ca8-ac2a-f3a479c559b1 /dev/vdb
    ceph-disk -v prepare --fs-type xfs --data-dev --cluster ceph \
     --cluster-uuid eaac9695-4265-4ca8-ac2a-f3a479c559b1 /dev/vdc
    [...]
  10. Attivare le partizioni:

    ceph-disk -v activate --mark-init systemd --mount /dev/vdb1
    ceph-disk -v activate --mark-init systemd --mount /dev/vdc1
  11. Per SUSE Enterprise Storage versione 2.1 e precedenti, creare i pool di default:

    ceph --connect-timeout 5 --keyring /etc/ceph/ceph.client.admin.keyring \
     --name client.admin osd pool create .users.swift 16 16
    ceph --connect-timeout 5 --keyring /etc/ceph/ceph.client.admin.keyring \
     --name client.admin osd pool create .intent-log 16 16
    ceph --connect-timeout 5 --keyring /etc/ceph/ceph.client.admin.keyring \
     --name client.admin osd pool create .rgw.gc 16 16
    ceph --connect-timeout 5 --keyring /etc/ceph/ceph.client.admin.keyring \
     --name client.admin osd pool create .users.uid 16 16
    ceph --connect-timeout 5 --keyring /etc/ceph/ceph.client.admin.keyring \
     --name client.admin osd pool create .rgw.control 16 16
    ceph --connect-timeout 5 --keyring /etc/ceph/ceph.client.admin.keyring \
     --name client.admin osd pool create .users 16 16
    ceph --connect-timeout 5 --keyring /etc/ceph/ceph.client.admin.keyring \
     --name client.admin osd pool create .usage 16 16
    ceph --connect-timeout 5 --keyring /etc/ceph/ceph.client.admin.keyring \
     --name client.admin osd pool create .log 16 16
    ceph --connect-timeout 5 --keyring /etc/ceph/ceph.client.admin.keyring \
     --name client.admin osd pool create .rgw 16 16
  12. Creare la chiave istanza Object Gateway dalla chiave bootstrap:

    ceph --connect-timeout 5 --cluster ceph --name client.bootstrap-rgw \
     --keyring /var/lib/ceph/bootstrap-rgw/ceph.keyring auth get-or-create \
     client.rgw.0dc1e13033d2467eace46270f0048b39 osd 'allow rwx' mon 'allow rw' \
     -o /var/lib/ceph/radosgw/ceph-rgw.rgw_name/keyring
  13. Abilitare e avviare Object Gateway:

    systemctl enable ceph-radosgw@rgw.rgw_name
    systemctl start ceph-radosgw@rgw.rgw_name
  14. Facoltativamente, creare la chiave istanza MDS dalla chiave bootstrap, quindi abilitarla e avviarla:

    ceph --connect-timeout 5 --cluster ceph --name client.bootstrap-mds \
     --keyring /var/lib/ceph/bootstrap-mds/ceph.keyring auth get-or-create \
     mds.mds.rgw_name osd 'allow rwx' mds allow mon \
     'allow profile mds' \
     -o /var/lib/ceph/mds/ceph-mds.rgw_name/keyring
    systemctl enable ceph-mds@mds.rgw_name
    systemctl start ceph-mds@mds.rgw_name
Stampa pagina