71 lines
1.8 KiB
Plaintext
71 lines
1.8 KiB
Plaintext
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install() {
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# Install needed software once
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sudo apt install -y vagrant virtualbox
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}
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setup() {
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# Configure the virtual servers
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mkdir -p ssh/
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cp ~/.ssh/id_rsa.pub ssh/
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cat ssh/*.pub > authorized_keys
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cat >Vagrantfile <<'EOF'
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Vagrant.configure("2") do |config|
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config.vm.box = "debian/buster64"
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config.vm.network "public_network"
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(1..100).each do |i|
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config.vm.define "vm%03d" % i do |node|
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node.vm.hostname = "vm%03d" % i
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# use the following line to map a range of ports on the host
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# to the VNC port of each VM:
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# node.vm.network "forwarded_port", host: 5900+i, guest: 5900
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end
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end
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config.vm.provision "shell" do |s|
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ssh_pub_key = File.readlines("authorized_keys").first.strip
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s.inline = <<-SHELL
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mkdir /root/.ssh
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echo #{ssh_pub_key} >> /home/vagrant/.ssh/authorized_keys
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echo #{ssh_pub_key} >> /root/.ssh/authorized_keys
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apt-get update
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apt-get install -y parallel
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SHELL
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end
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end
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EOF
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}
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start() {
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testssh() {
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ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null root@"$1" echo "'$1'" '`uptime`'
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}
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export -f testssh
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# Start the virtual servers
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seq 100 | parallel vagrant up vm{}
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# After this it is possible to do:
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# ssh 10.0.0.99
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# from another physical server
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# How do we get the IP-addresses?
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# parallel testssh
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}
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stop() {
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# Stop the virtual servers
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# After there is no running processes on the host server
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# and after this it is no longer possible to do:
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# ssh 10.0.0.99
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# from another physical server
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# The host server returns to the state before running `start`
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vagrant suspend
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}
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destroy() {
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# Remove the setup
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# After this the host server returns to the state before running `setup`
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?
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}
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full() {
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install
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setup
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start
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stop
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destroy
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}
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