Artikel: Proxmox-Hosts verwalten

Listing 1: Ansible-Task für das Squid-Ceph-Repository

- name: Enable Ceph-Squid repository for Proxmox VE
ansible.builtin.apt_repository:
repo: deb https://enterprise.proxmox.com/debian/ceph-squid bookworm enterprise
state: present
filename: ceph


Listing 2: Proxmox-Installation per Ansible
hosts: all
become: True
roles:
- role: bodsch.chrony
- role: lae.proxmox
vars:
pve_group: all
pve_reboot_on_kernel_update: true
pve_pcie_passthrough_enabled: true
pve_iommu_passthrough_mode: true
pve_iommu_unsafe_interrupts: false
pve_mediated_devices_enabled: false
pve_pcie_ovmf_enabled: false
pve_pci_device_ids:
- id: "10de:1381"
- id: "10de:0fbc"
pve_vfio_blacklist_drivers:
- name: "radeon"
- name: "nouveau"
- name: "nvidia"
pve_pcie_ignore_msrs: false
pve_pcie_report_msrs: true
pve_ceph_enabled: true
pve_ceph_network: '172.10.0.0/24'
pve_ceph_cluster_network:
'172.10.1.0/24'
pve_ceph_osds:
- device: /dev/sdc
- device: /dev/sdd
pve_zfs_enabled: true
pve_storages:
- name: zfs1
type: zfspool
content: [ "images", "rootdir" ]
pool: rpool/data
sparse: true


Artikel: Storage einrichten und verwalten

Listing 1: Merkmale eines QCOW2-Disk-Images ermitteln

qemu-img info /mnt/pve/storage/images/100/vm-100-disk-0.qcow2 image:
/mnt/pve/backup/images/100/vm-100-disk-0.qcow2
file format: qcow2
virtual size: 4 GiB (4294967296 bytes)
disk size: 2.63 GiB
cluster_size: 65536
Snapshot list:
ID TAG VM_SIZE DATE VM_CLOCK ICOUNT
1 snap1 0 B 2025-04-23 09:19:03 0000:00:00.000 0
2 snap2 0 B 2025-04-23 10:03:21 0000:44:01.300 --
Format specific information:
compat: 1.1
compression type: zlib
lazy refcounts: false
refcount bits: 16
corrupt: false
extended l2: false
Child node '/file':
filename: /mnt/pve/backup/images/100/vm-100-disk-0.qcow2
protocol type: file
file length: 2.78 GiB (2980119040 bytes)
disk size: 2.63 GiB
Format specific information:
extent size hint: 1048576


Listing 2: Eigenschaften eines LVM-Thin-Pools

lvdisplay pve/data
--- Logical volume ---
LV Name data
VG Name pve
LV UUID 1F3ucK-zGUo-wTof-LKcvo8Qf-k38V-TEJ9Fp
LV Write Access read/write (activated
read only)
LV Creation host, time proxmox, 2024-08-06
13:10:41 +0000
LV Pool metadata data_tmeta
LV Pool data data_tdata
LV Status available
# open 0
LV Size 11.80 GiB
Allocated pool data 16.04%
Allocated metadata 1.63%
Current LE 3022
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:6


Artikel: Backup und Restore

Listing: Hookscript für Sicherung einer Datenbank-VM

#!/bin/bash
# Siehe Phasen in der Beispieldatei: https://git.proxmox.com/?p=pve-manager.git;a=blob;
f=vzdump-hook-script.pl
# Beispiel-URL für externes Monitoringsystem (anpassen für eigene Umgebung)
MONITORING_URL="http://monitoring.local/api"
PHASE="$1"
VMID="$2"
MODE="$3"
STOREID="$4"
DUMPDIR="$5"
ARCHIVE_FILE="$6"
if [[ -z $PHASE || -z $VMID || -z $MODE ]];
then
echo "BAIL: not all arguments given!"
exit 1
fi
case "$PHASE" in
backup-start)
echo "Backup für Datenbank-VM $VMID gestartet"
# Monitoring-System über Backupstart informieren
curl -X POST "$MONITORING_URL/backup-start" -d "vm=$VMID"
# Datenbank in konsistenten Zustand bringen vor dem Stoppen
echo "Bereite Datenbank für Backup vor..."
if ! qm guest exec $VMID --timeout 300 -- mysql -u backup
-e "FLUSH TABLES WITH READ LOCK;"; then
echo "FEHLER: MySQL FLUSH TABLES fehlgeschlagen"
exit 1 # Exit-Code != 0 bricht das Backup ab
fi
;;
post-restart)
# Datenbank-Locks nach Backup wieder freigeben
if ! qm guest exec $VMID --timeout 300 -- mysql -u backup -e "UNLOCK TABLES;"; then
echo "FEHLER: MYSQL UNLOCK fehlgeschlagen"
# Das Backup hat funktioniert, daher erfolgt hier kein Abbruch
;;
backup-stop)
echo "Backup für VM $VMID erfolgreich - Archiv: $DUMPDIR/$ARCHIVE_FILE"
# Monitoring über erfolgreichen Abschluss informieren
curl -X POST "$MONITORING_URL/backup-status" -d "vm=$VMID&status=success&archive=
$DUMPDIR/$ARCHIVE_FILE"
;;
backup-abort)
echo "FEHLER - Backup für VM $VMID fehlgeschlagen!"
# Monitoring über fehlgeschlagenes Backup informieren
curl -X POST "$MONITORING_URL/backup-status" -d "vm=$VMID&status=failed"
;;
esac
exit 0