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pbot/applets/pbot-vm/vagrant/README.md

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# Vagrant instructions
### Install libvirt and QEMU/KVM
Follow [PBot VM Prerequisites](../../../doc/VirtualMachine.md#prerequisites) up to the [libvirt and QEMU](../../../doc/VirtualMachine.md#libvirt-and-qemu-1)
section, then return to this guide. If you've reached the section about making
a `pbot-vm` user, adding yourself to the `libvirt` group or downloading any ISOs
then you've read too far!
### Install Vagrant
To install vagrant on openSUSE, use:
zypper install --no-recommends vagrant
Otherwise see https://vagrant-libvirt.github.io/vagrant-libvirt/installation.html for installation instructions for your platform.
### Install vagrant-libvirt
vagrant plugin install vagrant-libvirt
### Start Vagrant Box
To start a virtual machine, `cd` into one of the PBot-VM Vagrant sub-directories and run the following command. This will download
the appropriate virtual machine image and automatically configure it as the default PBot VM Guest, `pbot-vm` described by
[`host/config/vm-exec.json`](../host/config/vm-exec.json):
vagrant up
You may pass optional environment variables to override pbot-vm default configuration (see [PBot VM Environment Variables](../../../doc/VirtualMachine.md#environment-variables)).
For example, to create `pbot-test-vm` described by [`host/config/vm-exec.json`](../host/config/vm-exec.json):
PBOTVM_DOMAIN=pbot-test-vm PBOTVM_SERIAL=7777 PBOTVM_HEALTH=7778 vagrant up
### Connect to Vagrant Box
Use SSH to connect to the PBot VM Guest:
vagrant ssh
If you specified a `PBOTVM_DOMAIN`, e.g. `pbot-test-vm`, you must specify it:
PBOTVM_DOMAIN=pbot-test-vm vagrant ssh
### Start PBot VM Guest Server
Once connected to the PBot VM Guest via SSH, start `guest-server` in the background:
sudo nohup guest-server &> log &
Some distributions may require you to specify the full path:
sudo nohup /usr/local/bin/guest-server &> log &
### Disconnect from Vagrant Box
Now you can type `logout` to exit the PBot VM Guest.
### Create snapshot of PBot VM Guest
After you've logged out of the PBot VM Guest with `guest-server` running in the background, create a snapshot. This allows PBot to revert to a known good state when a command times out.
If a `PBOTVM_DOMAIN` was defined, replace `pbot-vm` with that name.
virsh -c qemu:///system snapshot-create-as pbot-vm 1
### Edit vm-exec.json
If you used `vagrant up` without specifying a `PBOTVM_DOMAIN`, you must edit the [`../host/config/vm-exec.json`](../host/config/vm-exec.json)
configuration file to set the `vagrant` value to `1` for the `pbot-vm` machine.
If you have specified a `PBOTVM_DOMAIN`, ensure the appropriate entries exist in the `vm-exec.json` configuration file.
By default, `pbot-test-vm` already has `vagrant` set to `1`.
### Start PBot VM Host Server
cd ../host/bin/
./vm-server
### Test PBot VM
In your instance of PBot, the `sh` and `cc`, etc, commands should now produce output:
<pragma-> sh echo Hello world!
<PBot> Hello world!
### Starting PBot VM again
To start the PBot VM again, e.g. after a reboot:
cd applets/pbot-vm/host/bin
virsh -c qemu:///system net-start vagrant-libvirt
virsh -c qemu:///system snapshot-revert $PBOTVM_DOMAIN 1 # for each $PBOTVM_DOMAIN you need to start
./vm-server
### Shutdown Vagrant Box
vagrant halt
### Destroy Vagrant Box
vagrant destroy
### Delete Vagrant Box
vagrant box list
vagrant box remove <name>
### (Optional) Install Alternative Vagrant Box
To install an alternative Vagrant box with your preferred OS/distribution, search for one at https://app.vagrantup.com/boxes/search
and then make a new directory, e.g. FreeBSD-14, and copy one of the existing PBot-VM Vagrantfiles into
this directory, and then edit the `config.vm.box` line to point at the chosen OS/distribution, e.g. `freebsd/FreeBSD-14.0-CURRENT`.
Some boxes may have specific settings that you may need to copy over. To obtain and examine the box's Vagrantfile:
vagrant init <OS/distribution>
Examples:
vagrant init debian/testing64
vagrant init debian/bookworm64
vagrant init opensuse/Tumbleweed.x86_64
vagrant init archlinux/archlinux
vagrant init freebsd/FreeBSD-14.0-CURRENT
vagrant init generic/openbsd7
Then use one of the existing PBot-VM Vagrantfiles as a guide for adjusting your alternative Vagrantfile.