Expérience d'exploitation CEPH

blkdev=sdb1
mkfs.btrfs -f /dev/$blkdev
mount /dev/$blkdev /mnt
cd /mnt
for i in {@,@var,@home}; do btrfs subvolume create $i; done
mkdir snapshot @/{var,home}
for i in {var,home}; do mount -o bind @${i} @/$i; done
debootstrap buster @ http://deb.debian.org/debian; echo $?
for i in {dev,proc,sys}; do mount -o bind /$i @/$i; done
cp /etc/bash.bashrc @/etc/

chroot /mnt/@ /bin/bash
echo rbd1 > /etc/hostname
passwd
uuid=`blkid | grep $blkdev | cut -d "\"" -f 2`
cat << EOF > /etc/fstab
UUID=$uuid / btrfs noatime,nodiratime,subvol=@ 0 1
UUID=$uuid /var btrfs noatime,nodiratime,subvol=@var 0 2
UUID=$uuid /home btrfs noatime,nodiratime,subvol=@home 0 2
EOF
cat << EOF >> /var/lib/dpkg/status
Package: lvm2
Status: install ok installed
Priority: important
Section: admin
Installed-Size: 0
Maintainer: Debian Adduser Developers <adduser@packages.debian.org>
Architecture: all
Multi-Arch: foreign
Version: 113.118
Description: No-install

Package: sudo
Status: install ok installed
Priority: important
Section: admin
Installed-Size: 0
Maintainer: Debian Adduser Developers <adduser@packages.debian.org>
Architecture: all
Multi-Arch: foreign
Version: 113.118
Description: No-install
EOF

exit
grub-install --boot-directory=@/boot/ /dev/$blkdev
init 6

apt -yq install --no-install-recommends linux-image-amd64 bash-completion ed btrfs-progs grub-pc iproute2 ssh  smartmontools ntfs-3g net-tools man
exit
grub-install --boot-directory=@/boot/ /dev/$blkdev
init 6

apt -yq install --no-install-recommends gnupg wget ca-certificates
echo 'deb https://download.ceph.com/debian-octopus/ buster main' >> /etc/apt/sources.list
wget -q -O- 'https://download.ceph.com/keys/release.asc' | apt-key add -
apt update
apt -yq install --no-install-recommends ceph-common ceph-mon

echo 192.168.11.11 rbd1 >> /etc/hosts
uuid=`cat /proc/sys/kernel/random/uuid`
cat << EOF > /etc/ceph/ceph.conf
[global]
fsid = $uuid
auth cluster required = cephx
auth service required = cephx
auth client required = cephx
mon allow pool delete = true
mon host = 192.168.11.11
mon initial members = rbd1
mon max pg per osd = 385
osd crush update on start = false
#osd memory target = 2147483648
osd memory target = 1610612736
osd scrub chunk min = 1
osd scrub chunk max = 2
osd scrub sleep = .2
osd pool default pg autoscale mode = off
osd pool default size = 1
osd pool default min size = 1
osd pool default pg num = 1
osd pool default pgp num = 1
[mon]
mgr initial modules = dashboard
EOF

ceph-authtool --create-keyring ceph.mon.keyring --gen-key -n mon. --cap mon 'allow *'
ceph-authtool --create-keyring ceph.client.admin.keyring --gen-key -n client.admin --cap mon 'allow *' --cap osd 'allow *' --cap mds 'allow *' --cap mgr 'allow *'
cp ceph.client.admin.keyring /etc/ceph/
ceph-authtool --create-keyring bootstrap-osd.ceph.keyring --gen-key -n client.bootstrap-osd --cap mon 'profile bootstrap-osd' --cap mgr 'allow r'
cp bootstrap-osd.ceph.keyring /var/lib/ceph/bootstrap-osd/ceph.keyring
ceph-authtool ceph.mon.keyring --import-keyring /etc/ceph/ceph.client.admin.keyring
ceph-authtool ceph.mon.keyring --import-keyring /var/lib/ceph/bootstrap-osd/ceph.keyring
monmaptool --create --add rbd1 192.168.11.11 --fsid $uuid monmap
rm -R /var/lib/ceph/mon/ceph-rbd1/*
ceph-mon --mkfs -i rbd1 --monmap monmap --keyring ceph.mon.keyring
chown ceph:ceph -R /var/lib/ceph
systemctl enable ceph-mon@rbd1
systemctl start ceph-mon@rbd1
ceph mon enable-msgr2
ceph status

# dashboard

apt -yq install --no-install-recommends ceph-mgr ceph-mgr-dashboard python3-distutils python3-yaml
mkdir /var/lib/ceph/mgr/ceph-rbd1
ceph auth get-or-create mgr.rbd1 mon 'allow profile mgr' osd 'allow *' mds 'allow *' > /var/lib/ceph/mgr/ceph-rbd1/keyring
systemctl enable ceph-mgr@rbd1
systemctl start ceph-mgr@rbd1
ceph config set mgr mgr/dashboard/ssl false
ceph config set mgr mgr/dashboard/server_port 7000
ceph dashboard ac-user-create root 1111115 administrator
systemctl stop ceph-mgr@rbd1
systemctl start ceph-mgr@rbd1

apt install ceph-osd

osdnum=`ceph osd create`
mkdir -p /var/lib/ceph/osd/ceph-$osdnum
mkfs -t xfs /dev/sda1
mount -t xfs /dev/sda1 /var/lib/ceph/osd/ceph-$osdnum
cd /var/lib/ceph/osd/ceph-$osdnum
ceph auth get-or-create osd.0 mon 'profile osd' mgr 'profile osd' osd 'allow *' > /var/lib/ceph/osd/ceph-$osdnum/keyring
ln -s /dev/disk/by-partuuid/d8cc3da6-02  block
ceph-osd -i $osdnum --mkfs
#chown ceph:ceph /dev/sd?2
chown ceph:ceph -R /var/lib/ceph
systemctl enable ceph-osd@$osdnum
systemctl start ceph-osd@$osdnum