vi /etc/sysctl.conf
net.bridge.bridge-nf-call-iptables = 1
sysctl -p
than
kubeadm init
[ERROR FileContent–proc-sys-net-bridge-bridge-nf-call-iptables]: /proc/sys/net/bridge/bridge-nf-call-iptables contents are not set to 1
5 Replies
Category Archives: Virtualization
kubeadm [ERROR Swap]: running with swap on is not supported. Please disable swap
swapoff -a
Remove swap from /etc/fstab
virsh rename vm
virsh shutdown centos
virsh domrename centos srv.centos.net
virtio-win.iso
wget https://fedorapeople.org/groups/virt/virtio-win/virtio-win.repo \
-O /etc/yum.repos.d/virtio-win.repo
dnf install virtio-win
kvm install windows 10
Download there:
https://the-eye.eu/public/MSDN/Windows%2010/
sudo virt-install --name=windows10 --ram=2192 --cpu=host --vcpus=2 --os-type=windows --os-variant=win8.1 --disk /dev/mapper/vg-win,bus=virtio --disk /tmp/en_windows_10_enterprise_x64_dvd_6851151.iso,device=cdrom,bus=ide --disk /usr/share/virtio-win/virtio-win.iso,device=cdrom,bus=ide --network bridge=virbr0 --graphics vnc,listen=0.0.0.0
Error: Not enough parameters, diskspace quota not set
vzctl create 111 ...... --diskspace 40G --diskinodes 20971520
Error in e2fsck (fsutils.c:288): e2fsck failed (exit code 4)
vzctl mount XXXX
Opening delta /vz/private/XXXX/root.hdd/root.hdd
Adding delta dev=/dev/ploopXXXX img=/vz/private/XXXX/root.hdd/root.hdd (rw)
/dev/ploop15649p1: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
(i.e., without -a or -p options)
Error in e2fsck (fsutils.c:288): e2fsck failed (exit code 4)
Failed to mount image: Error in e2fsck (fsutils.c:288): e2fsck failed (exit code 4)
[41]
ploop check -F /vz/private/CID/root.hdd/root.hdd
ploop mount /vz/private/CID/root.hdd/DiskDescriptor.xml
fdisk -l /dev/ploopXXXXX
e2fsck -y /dev/ploopXXXX
ploop umount /vz/private/XXXX/root.hdd/DiskDescriptor.xm
openvz find process by container id
ps ax | awk '{print $1}' | xargs vzpid | grep CTID
lxc-start: lxc_start.c: main: 290 Executing ‘/sbin/init’ with no configuration file may crash the host
lxc-start -n centos -F
Make sure server name is correct, you are trying to start
openvz vzctl enter save bash history
This also helps detect login/access on your OpenVZ from node
echo "HISTFILE=~/.bash_history" >> /root/.bashrc
glusterfs inside openvz
Enable Fuse:
modprobe fuse
vzctl set CID --devices c:10:229:rw --save
vzctl exec CID mknod /dev/fuse c 10 229
vzctl set CID --capability sys_admin:on --save
Server 1:
yum update
yum install epel-release
yum install centos-release-gluster41
yum -y install glusterfs-server
systemctl enable glusterd.service
systemctl start glusterd.service
systemctl status glusterd.service
* glusterd.service - GlusterFS, a clustered file-system server
Loaded: loaded (/usr/lib/systemd/system/glusterd.service; enabled; vendor preset: disabled)
Active: active (running) since Sat 2018-09-01 20:15:28 UTC; 9h ago
Main PID: 1854 (glusterd)
CGroup: /system.slice/glusterd.service
|-1854 /usr/sbin/glusterd -p /var/run/glusterd.pid --log-level INFO
|-1986 /usr/sbin/glusterfsd -s data1 --volfile-id datavol.data1.data -p /var/run/gluster/vols/datavol/data1-data.pid -S /var/run/gluster/52b652b9976d3fea.soc...
|-2008 /usr/sbin/glusterfsd -s data2 --volfile-id datavol.vit2.data -p /var/run/gluster/vols/datavol/data2-data.pid -S /var/run/gluster/8d0878ede60c3f54.soc...
`-2031 /usr/sbin/glusterfs -s localhost --volfile-id gluster/glustershd -p /var/run/gluster/glustershd/glustershd.pid -l /var/log/glusterfs/glustershd.log..
glusterfsd -V
glusterfs 4.1.3
Server 1:
gluster peer probe data2
Server 2:
gluster peer probe data1
gluster peer status
Number of Peers: 1
Hostname: xx.xx.xx.xx
Uuid: xxxxxxx-xxxx-xxxx-xxxxx-xxxxxxxxxx
State: Peer in Cluster (Connected)
gluster volume create datavol replica 2 transport tcp data1:/data data2:/data force
volume create: datavol: success: please start the volume to access data
gluster volume start datavol
Because its TCP replica, you can check:
netstat -tap | grep glusterfsd
tcp 0 0 0.0.0.0:49152 0.0.0.0:* LISTEN 1986/glusterfsd
tcp 0 0 0.0.0.0:49153 0.0.0.0:* LISTEN 2008/glusterfsd
or
Some protection:
gluster volume set datavol auth.allow xx.xx.xx.* # 192.168.100.*
gluster volume info
Volume Name: testvol
Type: Replicate
Volume ID: xxxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxxx
Status: Started
Snapshot Count: 0
Number of Bricks: 1 x 2 = 2
Transport-type: tcp
Bricks:
Brick1: data1:/data
Brick2: data2:/data
Options Reconfigured:
auth.allow: xx.xx.xx.*
transport.address-family: inet
nfs.disable: on
performance.client-io-threads: off
Mount data on server or client:
yum -y install glusterfs-client
mkdir /var/data
mount.glusterfs data1:/datavol /var/data
Save on boot:
vi /etc/rc.local
mount.glusterfs data1:/datavol /var/data
Error: Package: kmod-kvdo vdo ( Requires: kernel dm_put_device)
Error: Package: kmod-kvdo-6.1.0.181-17.el7_5.x86_64 (updates)
Requires: kernel(dm_unregister_target) = 0x35ba4186
Installed: kernel-3.10.0-862.el7.x86_64 (@anaconda)
kernel(dm_unregister_target) = 0x62b8c739
Installed: vzkernel-3.10.0-862.9.1.vz7.63.3.x86_64 (@openvz-os)
kernel(dm_unregister_target) = 0x97f3d3e0
Available: kernel-debug-3.10.0-862.el7.x86_64 (base)
kernel(dm_unregister_target) = 0x9fea9142
Available: kernel-debug-3.10.0-862.2.3.el7.x86_64 (updates)
kernel(dm_unregister_target) = 0x9fea9142
Available: kernel-debug-3.10.0-862.3.2.el7.x86_64 (updates)
kernel(dm_unregister_target) = 0x9fea9142
Available: kernel-debug-3.10.0-862.3.3.el7.x86_64 (updates)
kernel(dm_unregister_target) = 0x9fea9142
Available: kernel-debug-3.10.0-862.6.3.el7.x86_64 (updates)
kernel(dm_unregister_target) = 0xe573fa0d
Available: kernel-debug-3.10.0-862.9.1.el7.x86_64 (updates)
kernel(dm_unregister_target) = 0xe573fa0d
Available: kernel-debug-3.10.0-862.11.6.el7.x86_64 (updates)
kernel(dm_unregister_target) = 0xe573fa0d
Available: vzkernel-debug-3.10.0-862.9.1.vz7.63.3.x86_64 (openvz-os)
kernel(dm_unregister_target) = 0x854b76de
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest
Fix:
yum --disablerepo=* --enablerepo=base install vdo kmod-kvdo
centos 7 openvz
yum install epel*release
yum install prlctl prl-disp-service vzkernel
reboot
systemctl status vz
Kickstart install Centos 7 using virt-install
sudo qemu-img create -f qcow2 /var/lib/libvirt/images/centos7.qcow2 15G
sudo iptables -t nat -A POSTROUTING -j MASQUERADE
or
firewall-cmd --zone=external --add-masquerade --permanent
firewall-cmd --reload
This helps avoid errors like: dracut-initqueue[688]: Warning: unknown network kickstart URL: ...
mkdir kick && mkdir kick
vim centos7.cfg
#version=RHEL7
install
auth --enableshadow --passalgo=sha512
repo --name="EPEL" --baseurl=http://dl.fedoraproject.org/pub/epel/7/x86_64
eula --agreed
reboot
url --url="http://mirror.litnet.lt/centos/7/os/x86_64/"
firstboot --enable
ignoredisk --only-use=vda
keyboard --vckeymap=en --xlayouts='en'
lang en_US.UTF-8
network --bootproto=dhcp --device=enp0s3 --noipv6 --activate
network --hostname=centos7.test.local
rootpw mypassword
services --enabled=NetworkManager,sshd,chronyd
timezone Europe/Vilnius --isUtc --ntpservers=0.centos.pool.ntp.org,1.centos.pool.ntp.org,2.centos.pool.ntp.org,3.centos.pool.ntp.org
user --groups=wheel --homedir=/home/monit --name=monit --password=password --iscrypted --gecos="monit"
bootloader --location=mbr --boot-drive=vda
autopart --type=lvm
zerombr
clearpart --all --drives=vda
selinux --permissive
%packages
@base
@core
chrony
yum-cron
%end
python -m SimpleHTTPServer 1111
Serving HTTP on 0.0.0.0 port 1111 ...
or
python3 -m http.server 1111
Serving HTTP on 0.0.0.0 port 1111 (http://0.0.0.0:1111/) ...
sudo virt-install --connect=qemu:///system --network=bridge:virbr0 --extra-args="ks=http://192.168.0.101:1111/centos7.cfg console=tty0 console=ttyS0,115200" --name=centos7 --disk /var/lib/libvirt/images/centos7.qcow2,size=15,device=disk,bus=virtio,format=qcow2 --ram 1500 --vcpus=1 --check-cpu --accelerate --hvm --location=http://mirror.litnet.lt/centos/7/os/x86_64/ --nographics
CentOS Linux 7 (Core)
Kernel 3.10.0-862.el7.x86_64 on an x86_64
centos7 login:
ERROR Host does not support any virtualization options
sudo dnf install qemu-kvm