Launch Ubuntu 20.04 k8s 1.21.4 cluster using vagrant box dreamcloud/ubuntu20-k8s is a k8s dev ready box, here is demo to show how to launch a 3 nodes k8s cluster in few mins using vagrant. tool set Vagrant 2.2.10 Virtualbox 6.1 prepare Vagrantfile $ mkdir /mnt/c/vagrant/ub20k8s $ curl -LO https://raw.githubusercontent.com/robertluwang/dreamcloud-vagrant/master/ubuntu20-k8s/Vagrantfile assume …
dreamcloud/ubuntu18-k8s is my k8s dev ready box, here is demo to show how to launch a 2 nodes k8s cluster in few mins using vagrant. tool set My test env is on win10, command line running on wsl ubuntu, pre-installed below tools: Vagrant 2.2.10 Virtualbox 6.1 prepare Vagrantfile You can …
I build dreamcloud/ubuntu18 vagrant box as practice, it is a dev ready vm: Guest Tool, shared folder gcc/git/python3/pip3 Here is demo how to launch ubuntu18 vm from this base, add 2nd host-only interface for private network. Vagrantfile vagrant up /mnt/c/vagrant/ubuntu18$ vagrant.exe up Bringing machine ‘ubuntu18’ up with ‘virtualbox’ provider… ==> …
portable python2/3 coexist on window It is not big issue to install python2/3 on same Linux but some issue on window, they have same name. There is new launcher to switch different version but not support portable by natural. Here are some tips to make both portable running smoothly on …
gateone HTML5-powered terminal emulator and SSH client download gateone 1.1 source https://github.com/liftoff/GateOne/downloads $ wget https://github.com/downloads/liftoff/GateOne/gateone-1.1.tar.gz install gateone from source $ tar zxvf gateone*.tar.gz; cd gateone*; sudo python setup.py install the gateone 1.1 released by 2012, only working well with tornado 2.4.1 $ pip install tornado==2.4.1 running gateone sudo python gateone.py …
download centos7 iso move iso to /var/lib/libvirt/boot ## prepare centos 7 kickstart file insert below line to standard kickstart file, to setup console mode for kickstart, %post –logfile=/root/grubby.log /sbin/grubby –update-kernel=ALL –args=”console=ttyS0″ %end create vm from iso + ks virt-install –name testvm-ks \ –nographics \ –location /var/lib/libvirt/boot/CentOS-7-x86_64-Minimal-1708.iso \ –initrd-inject /root/centos7-ks.cfg \ …
generate qcow2 base image virt-builder centos-7.6 \ –format qcow2 \ –size 20G -o /var/lib/libvist/boot/centos-7.6-20G.qcow2 verified type of disk is qcow2 by qemu-img info /var/lib/libvist/boot/centos-7.6-20G.qcow2 will use this base image as template for future vm quick launch. clone base image disk to vm disk cp /var/lib/libvist/boot/centos-7.6-20G.qcow2 /var/lib/libvist/images/testvm.qcow2 create vm testvm by …
libvirtd down after upgrade [root@tripleo ~]# systemctl status libvirtd.service ● libvirtd.service – Virtualization daemon Loaded: loaded (/usr/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled) Active: failed (Result: start-limit) since Sat 2018-12-15 11:10:40 EST; 10s ago Docs: man:libvirtd(8) https://libvirt.org Process: 2507 ExecStart=/usr/sbin/libvirtd $LIBVIRTD_ARGS (code=exited, status=3) Main PID: 2507 (code=exited, status=3) Tasks: 2 (limit: 32768) …
highlight steps to expand disk for vmware vm delete snapshot expand to 100GB create partition for new expanded disk add expended disk to root logical group expand disk in vmware the expand disk is default feature in vmware, you need to delete snapshot before expand. The Expand button is under …
pytoolbar – a python toolbar demo in Tkinter features toolbar gui, run in window or unix/linux desktop, it’s always on top of desktop security protected login(predefined login user: pytoolbar/demo,test/test) customized search bar, predefined google, github, oxford dictionary, bab.la English-Chinese dictionary, wikipedia search engines, easy to extend customized tool button for …