173 lines
6.5 KiB
Bash
173 lines
6.5 KiB
Bash
# ------------------------------------------------------------------------------
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# Configure machine for ceph (or samba / NFS) mount
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# This file is part of the init.sh project
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# Copyright (c) 2019-2025 Geoffray Levasseur <fatalerrors@geoffray-levasseur.org>
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# ------------------------------------------------------------------------------
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# This file is distributed under 3-clause BSD license.
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# The complete license agreement can be obtained at:
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# https://opensource.org/licenses/BSD-3-Clause
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# ------------------------------------------------------------------------------
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# Variable:
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# * CEPH_SRV_NAMES: hosts names of ceph servers
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# * CEPHIP_srv: with "srv" being a ceph server hostname, its corresponding IP
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# * CEPH_MOUNTS: list of mounts to create
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# * CEPH_MP_mount: mount point for the given "mount"
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# * SHARED_HOME: Set at yes if homedir is a directory of the ceph mount (to be removed)
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# * SMBSRV: Fallback samba server on unsupported architectures (not doing
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# anything if undeclared)
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# * NFSSRV: Fallback NFS server on unsupported architectures (not doing
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# anything if undeclared)
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# If both SMBSRV and NFSSRV are set on unsupported hardware, Samba will have a
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# higher priority.
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# ------------------------------------------------------------------------------
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export VER_conf_ceph="1.0.2"
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export DEP_conf_ceph=""
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conf_ceph()
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{
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local success=undef
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# Determine the type of installation
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if [[ $SYS_ARCH == "x86_64" || $SYS_ARCH == "i386" ]]; then
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export CEPH_STATUS=ceph
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elif [[ -n $SMBSRV ]]; then
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export CEPH_STATUS=smb
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elif [[ -n $NFSSRV ]]; then
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export CEPH_STATUS=nfs
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else
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export CEPH_STATUS=none
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fi
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if [[ $CEPH_STATUS == ceph ]]; then
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# Install ceph package
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pkginst ceph-common
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# hosts files required for Ceph bootstrap when DNS not yet started
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if ! grep -q "^# Ceph" /etc/hosts; then
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prnt I "Adding server list to /etc/hosts"
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backup_dist /etc/hosts
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tag_file /etc/hosts
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echo >> /etc/hosts
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echo "# Ceph servers:" >> /etc/hosts
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for srv in $CEPH_SRV_NAMES; do
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local line
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line="$(eval echo \$CEPHIP_$srv) $srv.$REALM $srv"
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prnt m " - Adding line $line to /etc/hosts"
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echo "$line" >> /etc/hosts
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unset line
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done
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else
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prnt W "Ceph servers already in /etc/hosts, nothing to do"
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fi
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backup_dist /etc/fstab
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prnt I "Adding ceph entries to /etc/fstab"
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tag_file /etc/fstab
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echo >> /etc/fstab
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local srvlist=${CEPH_SRV_NAMES/ /,}
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prnt I "Fetching secret $CEPH_SECRET..."
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local secret
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secret=$(fetch_secret "$CEPH_SECRET")
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if ! grep -q "$srvlist" /etc/fstab; then
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echo "# Ceph :" >> /etc/fstab
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for mnt in $CEPH_MOUNTS; do
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mkdir -pv "$mnt"
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echo "$srvlist:/ $(eval echo \$CEPH_MP_$mnt) ceph defaults,_netdev,name=admin,secret=$secret,id=$mnt 0 0" >> /etc/fstab
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done
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else
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prnt W "Ceph entry already in /etc/fstab, nothing to do"
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fi
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unset srvlist secret
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success=yes
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elif [[ $CEPH_STATUS == smb ]]; then
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pkginst smbclient
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backup_dist /etc/fstab
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prnt I "Adding Samba entries to /etc/fstab"
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echo >> /etc/fstab
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tag_file /etc/fstab
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if ! grep -q "$SMBSRV" /etc/fstab; then
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echo "# Samba:" >> /etc/fstab
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for mnt in $CEPH_MOUNTS; do
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echo "//$SMBSRV/$mnt $(eval echo \$CEPH_MP_$mnt) cifs defaults,_netdev,username=root,password= 0 0" >> /etc/fstab
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done
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else
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prnt W "Samba entry already in /etc/fstab, nothing to do"
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fi
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success=yes
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elif [[ $CEPH_STATUS == nfs ]]; then
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tag_file /etc/fstab
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# To be implemented
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elif [[ $CEPH_STATUS == none ]]; then
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prnt W "No alternative set for unsuported hardware, nothing will be done."
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return 0
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else
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prnt E "Ceph status not understood, something is wrong."
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return 1
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fi
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if [[ $success == yes ]]; then
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# Create some mount binds for convenience
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# TODO: That part should be a different module with own configuration
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if grep -q "^/srv/ceph/share" /etc/fstab; then
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echo "/srv/ceph/share /share none defaults,_netdev,bind 0 0" >> /etc/fstab
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if [[ $SHARED_HOME == 1 ]]; then
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echo "/srv/ceph/share/home /home none defaults,_netdev,bind 0 0" >> /etc/fstab
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fi
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fi
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else
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prnt E "Failed creating original mount, not adding binded ones"
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fi
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# Mount Ceph volumes if required
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prnt I "Mounting ceph volumes"
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for mnt in $CEPH_MOUNTS; do
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if ! mountpoint -q "$(eval echo \$CEPH_MP_$mnt)"; then
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mount -v "$(eval echo \$CEPH_MP_$mnt)" ||
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prnt W "Error while mounting CEPH filesystem (check CEPH logs), ignoring"
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fi
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done
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}
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precheck_conf_ceph()
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{
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if [[ $SYS_ARCH == "x86_64" || $SYS_ARCH == "i386" ]]; then
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prnt I "Installing ceph client package..."
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if [[ -n $CEPH_SRV_NAMES ]]; then
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prnt I "We will use the following CEPH servers:"
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for srv in $CEPH_SRV_NAMES; do
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if [[ -z "$(eval echo \$CEPHIP_$srv)" ]]; then
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prnt E "The IP for CEPH server \"$srv\" is not declared."
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die 180
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else
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prnt m " * $srv with IP $(eval echo \$CEPHIP_$srv)"
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fi
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done
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if [[ -z $CEPH_SECRET ]]; then
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prnt E "CEPH secret key is not declared, can't continue!"
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prnt I "If you don't want to put a CEPH secret var in configuration file,"
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prnt m "you need to export it temporarily in your environment, using the"
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prnt m "\"CEPH_SECRET\" variable."
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die 181
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elif ! check_secret $CEPH_SECRET; then
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prnt E "The declared $CEPH_SECRET is not accessible."
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die 183
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fi
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if [[ -z $CEPH_MOUNTS ]]; then
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prnt E "No CEPH mounts declared, despite reachable servers."
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die 182
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fi
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else
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prnt E "No CEPH server declared!"
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die 182
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fi
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else
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prnt W "System incompatible with ceph, falling back to Samba or NFS..."
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fi
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}
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export -f conf_ceph
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export -f precheck_conf_ceph
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