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This commit is contained in:
Calvin L House, Jr
2026-02-27 04:59:56 +00:00
commit 12b9002638
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431
bash/kvm-deploy/kvm-cloud-init.sh Normal file
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#!/bin/bash
#set -vx
hosts=("1.1.1.1" "2.2.2.2" "3.3.3.3")
get_host_info() {
echo "Refreshing host info..."
for h in "${hosts[@]}"; do
virsh -c qemu+ssh://root@${h}/system pool-refresh --pool kvm_guests > /dev/null
virsh -c qemu+ssh://root@${h}/system pool-refresh --pool nvme_guests > /dev/null
virsh -c qemu+ssh://root@${h}/system pool-refresh --pool ISO > /dev/null
echo "+++++++++++++++++"
echo -e "Host ${h}\n"
echo "+++++++++++++++++"
virsh -c qemu+ssh://root@${h}/system list --all
done
echo "+++++++++++++++++"
echo "Disk Volumes"
echo "+++++++++++++++++"
virsh -c qemu+ssh://root@${hosts[0]}/system vol-list --pool kvm_guests --details
echo "+++++++++++++++++"
echo "nVME Volumes"
echo "+++++++++++++++++"
virsh -c qemu+ssh://root@${hosts[0]}/system vol-list --pool nvme_guests --details
echo "+++++++++++++++++"
echo "ISO Volumes"
echo "+++++++++++++++++"
virsh -c qemu+ssh://root@${hosts[0]}/system vol-list --pool ISO --details
$0
}
mass_startup(){
read -p "Which host?" KVM_HOST
guests=($(virsh -c qemu+ssh://root@${h}/system list --inactive | '/shut off/{print $2}'))
for g in "${guests[@]}"
do
virsh -c qemu+ssh://root@${h}/system start ${g}
done
}
migrate_domain(){
echo "Migration Types
1). Single Domain
2). Offline Domain
3). Mass Domain Migration
"
read -p "Select Migration Type: " MIG
if [ $MIG == 1 ]; then
read -p "Select source host. " SRC_URI
virsh -c qemu+ssh://root@${SRC_URI}/system list | '/running/{print $2}'
read -p "Select destination host. " DEST_URI
read -p "Select domain. " DOM
virsh -c qemu+ssh://root@${SRC_URI}/system migrate \
--domain $DOM \
--live \
--p2p \
--tunnelled \
--desturi qemu+ssh://root@${DEST_URI}/system \
--persistent \
--undefinesource \
--verbose
rerun
elif [ $MIG == 2 ]; then
read -p "Select source host. " SRC_URI
read -p "Select destination host. " DEST_URI
domain=($(virsh -c qemu+ssh://root@${SRC_URI}/system list --inactive | '/shut off/{print $2}'))
for dom in "${domain[@]}"; do
read -p "Select destination host. " DEST_URI
virsh -c qemu+ssh://root@${SRC_URI}/system migrate \
--domain $DOM \
--live \
--p2p \
--tunnelled \
--desturi qemu+ssh://root@${DEST_URI}/system \
--persistent \
--undefinesource \
--verbose
rerun
done
elif [ $MIG == 3]; then
read -p "Select source host. " SRC_URI
read -p "Select destination host. " DEST_URI
domain=($(virsh -c qemu+ssh://root@${SRC_URI}/system list | '/running/{print $2}'))
for dom in "${domain[@]}"; do
read -p "Select destination host. " DEST_URI
virsh -c qemu+ssh://root@${SRC_URI}/system migrate \
--domain $DOM \
--live \
--p2p \
--tunnelled \
--desturi qemu+ssh://root@${DEST_URI}/system \
--persistent \
--undefinesource \
--verbose
done
else
echo "Invalid type..."
$0
fi
$0
}
backup_guest () {
read -p "Enter the desired host: " KVM_HOST
# declare/initialize global array
guests=($(virsh -c qemu+ssh://root@${KVM_HOST}/system list | awk '/running/{print $2}'))
# global variables
SNAP_DEST=/mnt/snap/
CPY_DEST=/mnt/backup/
for n in "${guests[@]}"
do
# initialize block storage array list and sets array variable
blks=($(virsh -c qemu+ssh://root@${KVM_HOST}/system domblklist --domain ${n} | awk '/vda/{print $2}'))
BLK_CALL=$(echo ${blks[0]})
# create external snapshot
virsh -c qemu+ssh://root@${KVM_HOST}/system snapshot-create-as --domain ${n} --name ${n} --diskspec vda,file=${SNAP_DEST}${n}.qcow2 \
--disk-only --atomic --no-metadata --quiesce | logger -t guest_snap
# syncs with backup destination
rsync -azq ${BLK_CALL} ${CPY_DEST}${n} | logger -t guest_sync
# active blockcommit
virsh -c qemu+ssh://root@${KVM_HOST}/system blockcommit --domain ${n} vda --active --pivot --verbose | logger -t guest_pivot
rm -rf ${SNAP_DEST}${n}.qcow2
done
$0
}
test_node(){
read -p "Enter the desired host: " KVM_HOST
read -p "Enter the name of guest: " GUEST
read -p "Enter OS 1). AlmaLinux 10 2). Debian 13 " OS_CHO
if [ $OS_CHO == 1 ]; then
virsh -c qemu+ssh://root@${KVM_HOST}/system vol-create-as --pool kvm_guests --name ${GUEST} --format qcow2 --capacity 500G --backing-vol /mnt/iso/AlmaLinux-10-GenericCloud-latest.x86_64_v2.qcow2 --backing-vol-format qcow2
echo "local-hostname: ${GUEST}" > ./meta-data
virt-install \
--connect qemu+ssh://root@${KVM_HOST}/system \
--name $GUEST \
--vcpus 2 \
--memory 2048 \
--os-variant almalinux9 \
--boot uefi \
--network bridge=_servers \
--disk /mnt/kvm_guests/$GUEST \
--cloud-init user-data=./user-data/cloud-init-configs/alma-node.yml,meta-data=./meta-data \
--import \
--autostart \
--noautoconsole
elif [ $OS_CHO == 2 ]; then
virsh -c qemu+ssh://root@${KVM_HOST}/system vol-create-as --pool kvm_guests --name ${GUEST} --format qcow2 --capacity 500G --backing-vol /mnt/iso/debian-13-genericcloud-amd64-20250806-2196.qcow2 --backing-vol-format qcow2
echo "local-hostname: ${GUEST}" > ./meta-data
virt-install \
--connect qemu+ssh://root@${KVM_HOST}/system \
--name $GUEST \
--vcpus 2 \
--memory 2048 \
--os-variant debian13 \
--boot uefi \
--network bridge=_servers \
--disk /mnt/kvm_guests/$GUEST \
--cloud-init user-data=./user-data/debian-node.yml,meta-data=./meta-data \
--import \
--autostart \
--noautoconsole
fi
$0
}
pg_node(){
read -p "Enter the desired host: " KVM_HOST
read -p "Enter the name of guest: " GUEST
virsh -c qemu+ssh://root@${KVM_HOST}/system vol-create-as --pool kvm_guests --name ${GUEST} --format qcow2 --capacity 500G --backing-vol /mnt/iso/AlmaLinux-10-GenericCloud-latest.x86_64_v2.qcow2 --backing-vol-format qcow2
echo "local-hostname: ${GUEST}" > ./meta-data
virt-install \
--connect qemu+ssh://root@${KVM_HOST}/system \
--name $GUEST \
--vcpus 4 \
--memory 4096 \
--os-variant almalinux9 \
--boot uefi \
--network bridge=_servers \
--disk /mnt/kvm_guests/$GUEST \
--cloud-init user-data=./user-data/postgres.yml,meta-data=./meta-data \
--import \
--autostart \
--noautoconsole
$0
}
zed_lake_node(){
read -p "Enter the desired host: " KVM_HOST
read -p "Enter the name of guest: " GUEST
virsh -c qemu+ssh://root@${KVM_HOST}/system vol-create-as --pool kvm_guests --name ${GUEST} --format qcow2 --capacity 500G --backing-vol /mnt/iso/AlmaLinux-10-GenericCloud-latest.x86_64_v2.qcow2 --backing-vol-format qcow2
echo "local-hostname: ${GUEST}" > ./meta-data
virt-install \
--connect qemu+ssh://root@${KVM_HOST}/system \
--name $GUEST \
--vcpus 4 \
--memory 4096 \
--os-variant almalinux9 \
--boot uefi \
--network bridge=_servers \
--disk /mnt/kvm_guests/$GUEST \
--cloud-init user-data=./user-data/zed-lake.yml,meta-data=./meta-data \
--import \
--autostart \
--noautoconsole
$0
}
int_docker_node(){
read -p "Enter the desired host: " KVM_HOST
read -p "Enter the name of guest: " GUEST
read -p "1). Leader or 2). Worker: " NODE_TYPE
if [ $NODE_TYPE == 1 ]; then
virsh -c qemu+ssh://root@${KVM_HOST}/system vol-create-as --pool nvme_guests --name ${GUEST} --format qcow2 --capacity 100G --backing-vol /mnt/iso/AlmaLinux-10-GenericCloud-latest.x86_64_v2.qcow2 --backing-vol-format qcow2
echo "local-hostname: ${GUEST}" > ./meta-data
virt-install \
--connect qemu+ssh://root@${KVM_HOST}/system \
--name $GUEST \
--vcpus 4 \
--memory 4096 \
--os-variant almalinux9 \
--boot uefi \
--network bridge=_servers \
--disk /mnt/nvme_guests/$GUEST \
--cloud-init user-data=./user-data/docker-leader.yml,meta-data=./meta-data \
--import \
--autostart \
--noautoconsole
elif [ $NODE_TYPE == 2 ]; then
virsh -c qemu+ssh://root@${KVM_HOST}/system vol-create-as --pool nvme_guests --name ${GUEST} --format qcow2 --capacity 100G --backing-vol /mnt/iso/AlmaLinux-10-GenericCloud-latest.x86_64_v2.qcow2 --backing-vol-format qcow2
echo "local-hostname: ${GUEST}" > ./meta-data
virt-install \
--connect qemu+ssh://root@${KVM_HOST}/system \
--name $GUEST \
--vcpus 8 \
--memory 8192 \
--os-variant almalinux9 \
--boot uefi \
--network bridge=_servers \
--disk /mnt/nvme_guests/$GUEST \
--cloud-init user-data=./user-data/docker-worker.yml,meta-data=./meta-data \
--import \
--autostart \
--noautoconsole
else
echo "Invalid type..."; $0
fi
$0
}
host_docker_node(){
read -p "Enter the desired host: " KVM_HOST
read -p "Enter the name of guest: " GUEST
read -p "1). Leader or 2). Worker: " NODE_TYPE
if [ $NODE_TYPE == 1 ]; then
virsh -c qemu+ssh://root@${KVM_HOST}/system vol-create-as --pool nvme_guests --name ${GUEST} --format qcow2 --capacity 100G --backing-vol /mnt/iso/AlmaLinux-10-GenericCloud-latest.x86_64_v2.qcow2 --backing-vol-format qcow2
echo "local-hostname: ${GUEST}" > ./meta-data
virt-install \
--connect qemu+ssh://root@${KVM_HOST}/system \
--name $GUEST \
--vcpus 4 \
--memory 4096 \
--os-variant almalinux9 \
--boot uefi \
--network bridge=_hosting \
--disk /mnt/nvme_guests/$GUEST \
--cloud-init user-data=./user-data//docker-leader.yml,meta-data=./meta-data \
--import \
--autostart \
--noautoconsole
elif [ $NODE_TYPE == 2 ]; then
virsh -c qemu+ssh://root@${KVM_HOST}/system vol-create-as --pool nvme_guests --name ${GUEST} --format qcow2 --capacity 100G --backing-vol /mnt/iso/AlmaLinux-10-GenericCloud-latest.x86_64_v2.qcow2 --backing-vol-format qcow2
echo "local-hostname: ${GUEST}" > ./meta-data
virt-install \
--connect qemu+ssh://root@${KVM_HOST}/system \
--name $GUEST \
--vcpus 8 \
--memory 8192 \
--os-variant almalinux9 \
--boot uefi \
--network bridge=_hosting \
--disk /mnt/nvme_guests/$GUEST \
--cloud-init user-data=./user-data/docker-worker.yml,meta-data=./meta-data \
--import \
--autostart \
--noautoconsole
else
echo "Invalid type..."; $0
fi
$0
}
elastic_node(){
read -p "Enter the desired host: " KVM_HOST
read -p "Enter the name of guest: " GUEST
read -p "Elastic Node or Fleet Server (1=Node or 2=Fleet): " E_TYPE
echo "local-hostname: ${GUEST}" > ./meta-data
if [ $E_TYPE == 1 ]; then
virsh -c qemu+ssh://root@${KVM_HOST}/system vol-create-as --pool kvm_guests --name ${GUEST} --format qcow2 --capacity ${VOL_SIZE}G --backing-vol /mnt/iso/AlmaLinux-10-GenericCloud-latest.x86_64_v2.qcow2 --backing-vol-format qcow2
virt-install \
--connect qemu+ssh://root@${KVM_HOST}/system \
--name $GUEST \
--vcpus 4 \
--memory 8192 \
--os-variant almalinux9 \
--boot uefi \
--network bridge=_elastic \
--disk /mnt/kvm_guests/$GUEST \
--cloud-init user-data=./user-data//elastic-stack.yaml,meta-data=./meta-data \
--import \
--autostart \
--noautoconsole
elif [ $E_TYPE == 2 ]; then
virsh -c qemu+ssh://root@${KVM_HOST}/system vol-create-as --pool kvm_guests --name ${GUEST} --format qcow2 --capacity 100G --backing-vol /mnt/iso/AlmaLinux-10-GenericCloud-latest.x86_64_v2.qcow2 --backing-vol-format qcow2
virt-install \
--connect qemu+ssh://root@${KVM_HOST}/system \
--name $GUEST \
--vcpus 2 \
--memory 2048 \
--os-variant almalinux9 \
--boot uefi \
--network bridge=_elastic \
--disk /mnt/kvm_guests/$GUEST \
--cloud-init user-data=./user-data//elastic-fleet.yml,meta-data=./meta-data \
--import \
--autostart \
--noautoconsole
else
echo "Invalid option..."; $0
fi
$0
}
kube_node(){
read -p "Enter the desired host: " KVM_HOST
read -p "Enter the name of guest: " GUEST
read -p "Dev or Prod (1=Prod or 2=Dev): " KUBE_E
echo "local-hostname: ${GUEST}" > ./meta-data
if [ ${KUBE_E} == 1 ]; then
virsh -c qemu+ssh://root@${KVM_HOST}/system vol-create-as --pool nvme_guests --name ${GUEST} --format qcow2 --capacity 100G --backing-vol /mnt/iso/AlmaLinux-10-GenericCloud-latest.x86_64_v2.qcow2 --backing-vol-format qcow2
virt-install \
--connect qemu+ssh://root@${KVM_HOST}/system \
--name $GUEST \
--vcpus 2 \
--memory 4096 \
--os-variant almalinux9 \
--boot uefi \
--network bridge=_hosting \
--disk /mnt/nvme_guests/$GUEST \
--cloud-init user-data=./user-data//k3s-install.yml,meta-data=./meta-data \
--import \
--autostart \
--noautoconsole
elif [ ${KUBE_E} == 2 ]; then
virsh -c qemu+ssh://root@${KVM_HOST}/system vol-create-as --pool nvme_guests --name ${GUEST} --format qcow2 --capacity 100G --backing-vol /mnt/iso/AlmaLinux-10-GenericCloud-latest.x86_64_v2.qcow2 --backing-vol-format qcow2
virt-install \
--connect qemu+ssh://root@${KVM_HOST}/system \
--name $GUEST \
--vcpus 4 \
--memory 4096 \
--os-variant almalinux9 \
--boot uefi \
--network bridge=_servers \
--disk /mnt/nvme_guests/$GUEST \
--cloud-init user-data=./user-data//k3s-install.yml,meta-data=./meta-data \
--import \
--autostart \
--noautoconsole
else
echo "Invalid option..."; $0
fi
$0
}
echo "Available options:
1). Create Basic Node
2). Create Internal Docker Node
3). Create Hosting Docker Node
4). Create Elastic Node
5). Create k3s node
6). Create kubeadm node
7). Postgresql node
8). Zed Lake node
a). Get info on a host
b). Domain migration
00). Exit
"
read -p "Select an option: " OPT
case "$OPT" in
1) test_node
;;
2) int_docker_node
;;
3) host_docker_node
;;
4) elastic_node
;;
5) kube_node
;;
6) kubeadm_node
;;
7) pg_node
;;
8) zed_lake_node
;;
a|A) get_host_info
;;
b|B) migrate_domain
;;
00|0) echo "Exiting..."; exit 0
;;
*) echo "Invalid option."; sleep 1; $0
;;
esac

44
bash/kvm-deploy/user-data/alma-node.yml Normal file
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#cloud-config
users:
- name: your-user
lock_passwd: false
passwd:
groups: wheel
ssh_authorized_keys:
-
shell: /bin/bash
sudo: ['ALL=(ALL) NOPASSWD: ALL']
write_files:
- path: /etc/ssh/sshd_config
content: |
Protocol 2
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key
SyslogFacility AUTH
LogLevel INFO
LoginGraceTime 120
PasswordAuthentication no
PermitRootLogin no
StrictModes yes
PubkeyAuthentication yes
IgnoreRhosts yes
HostbasedAuthentication no
PermitEmptyPasswords no
ChallengeResponseAuthentication no
PrintLastLog yes
TCPKeepAlive yes
AcceptEnv LANG LC_*
UsePAM yes
prefer_fqdn_over_hostname: true
package_update: true
package_upgrade: true
packages:
- plocate
- unzip
- tar
- policycoreutils-python-utils
- rsync
- nfs-utils
- vim

53
bash/kvm-deploy/user-data/docker-leader.yml Normal file
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#cloud-config
users:
- name: your-user
lock_passwd: false
passwd:
ssh_authorized_keys:
-
shell: /bin/bash
groups: wheel
sudo: ['ALL=(ALL) NOPASSWD: ALL']
write_files:
- path: /etc/ssh/sshd_config
content: |
Protocol 2
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key
SyslogFacility AUTH
LogLevel INFO
LoginGraceTime 120
PasswordAuthentication no
PermitRootLogin no
StrictModes yes
PubkeyAuthentication yes
IgnoreRhosts yes
HostbasedAuthentication no
PermitEmptyPasswords no
ChallengeResponseAuthentication no
PrintLastLog yes
TCPKeepAlive yes
AcceptEnv LANG LC_*
Subsystem sftp /usr/lib/openssh/sftp-server
UsePAM yes
packages:
- firewalld
- vim
- nfs-utils
- bind-utils
- qemu-guest-agent
runcmd:
- firewall-cmd --permanent --add-port 2376/tcp
- firewall-cmd --permanent --add-port 2377/tcp
- firewall-cmd --permanent --add-port 7946/tcp
- firewall-cmd --permanent --add-port 4789/udp
- firewall-cmd --permanent --add-port 7946/udp
- firewall-cmd --permanent --remove-service cockpit
- firewall-cmd --reload
- dnf config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
- dnf install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
- systemctl enable --now docker
- gpasswd -a your-user docker
- dnf upgrade -y && reboot

52
bash/kvm-deploy/user-data/docker-worker.yml Normal file
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#cloud-config
users:
- name: your-user
lock_passwd: false
passwd:
ssh_authorized_keys:
-
shell: /bin/bash
groups: wheel
sudo: ['ALL=(ALL) NOPASSWD: ALL']
write_files:
- path: /etc/ssh/sshd_config
content: |
Protocol 2
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key
SyslogFacility AUTH
LogLevel INFO
LoginGraceTime 120
PasswordAuthentication no
PermitRootLogin no
StrictModes yes
PubkeyAuthentication yes
IgnoreRhosts yes
HostbasedAuthentication no
PermitEmptyPasswords no
ChallengeResponseAuthentication no
PrintLastLog yes
TCPKeepAlive yes
AcceptEnv LANG LC_*
Subsystem sftp /usr/lib/openssh/sftp-server
UsePAM yes
packages:
- firewalld
- vim
- nfs-utils
- bind-utils
- qemu-guest-agent
runcmd:
- firewall-cmd --permanent --add-port 2377/tcp
- firewall-cmd --permanent --add-port 7946/tcp
- firewall-cmd --permanent --add-port 4789/udp
- firewall-cmd --permanent --add-port 7946/udp
- firewall-cmd --permanent --remove-service cockpit
- firewall-cmd --reload
- dnf config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
- dnf install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
- systemctl enable --now docker
- gpasswd -a your-user docker
- dnf upgrade -y && reboot

54
bash/kvm-deploy/user-data/k3s-install.yml Normal file
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#cloud-config
users:
- name: your-user
lock_passwd: false
passwd:
groups: wheel
ssh_authorized_keys:
-
shell: /bin/bash
sudo: ['ALL=(ALL) NOPASSWD: ALL']
write_files:
- path: /etc/ssh/sshd_config
content: |
Protocol 2
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key
SyslogFacility AUTH
LogLevel INFO
LoginGraceTime 60
PasswordAuthentication no
PermitRootLogin no
StrictModes yes
PubkeyAuthentication yes
IgnoreRhosts yes
HostbasedAuthentication no
PermitEmptyPasswords no
ChallengeResponseAuthentication no
PrintLastLog yes
TCPKeepAlive yes
AcceptEnv LANG LC_*
UsePAM yes
- path: /etc/sysctl.d/01-k3s.conf
content: |
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-iptables = 1
vm.swappiness = 0
vm.overcommit_memory = 1
timezone: Etc/UTC
packages:
- curl
- vim
- bind-utils
- nfs-utils
runcmd:
- echo "overlay" > /etc/modules-load.d/k3s.conf
- echo "br_netfilter" >> /etc/modules-load.d/k3s.conf
- modprobe overlay
- modprobe br_netfilter
- sed -i 's/=enforcing/=permissive/' /etc/selinux/config
- dnf upgrade -y
- reboot

48
bash/kvm-deploy/user-data/postgres.yml Normal file
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#cloud-config
users:
- name: your-user
lock_passwd: false
passwd:
ssh_authorized_keys:
-
shell: /bin/bash
groups: wheel
sudo: ['ALL=(ALL) NOPASSWD: ALL']
write_files:
- path: /etc/ssh/sshd_config
content: |
Protocol 2
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key
SyslogFacility AUTH
LogLevel INFO
LoginGraceTime 120
PasswordAuthentication no
PermitRootLogin no
StrictModes yes
PubkeyAuthentication yes
IgnoreRhosts yes
HostbasedAuthentication no
PermitEmptyPasswords no
ChallengeResponseAuthentication no
PrintLastLog yes
TCPKeepAlive yes
AcceptEnv LANG LC_*
UsePAM yes
prefer_fqdn_over_hostname: true
packages:
- firewalld
- vim
- plocate
- unzip
- tar
- policycoreutils-python-utils
- rsync
- nfs-utils
- bind-utils
runcmd:
- dnf install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-10-x86_64/pgdg-redhat-repo-latest.noarch.rpm
- dnf -qy module disable postgresql
- dnf install -y postgresql17-server