CI: rename 'travis' to 'ci'

CRIU is already using multiple CI systems and not just Travis. This
renames all Travis related things to 'ci' to show it is actually
independent of Travis.

Just a simple rename.

Signed-off-by: Adrian Reber <areber@redhat.com>

scripts/ci/vagrant.sh

@@ -0,0 +1,52 @@
+#!/bin/bash
+
+# This script is used to run vagrant based tests on Travis.
+# This script is started via sudo from .travis.yml
+
+set -e
+set -x
+
+VAGRANT_VERSION=2.2.7
+FEDORA_VERSION=32
+FEDORA_BOX_VERSION=32.20200422.0
+
+setup() {
+	apt-get -qq update
+	# Load the kvm modules for vagrant to use qemu
+	modprobe kvm kvm_intel
+
+	# Tar up the git checkout to have vagrant rsync it to the VM
+	tar cf criu.tar ../../../criu
+	wget https://releases.hashicorp.com/vagrant/${VAGRANT_VERSION}/vagrant_${VAGRANT_VERSION}_"$(uname -m)".deb -O /tmp/vagrant.deb && \
+		dpkg -i /tmp/vagrant.deb
+
+	./apt-install libvirt-bin libvirt-dev qemu-utils qemu
+	systemctl restart libvirt-bin
+	vagrant plugin install vagrant-libvirt
+	vagrant init fedora/${FEDORA_VERSION}-cloud-base --box-version ${FEDORA_BOX_VERSION}
+	# The default libvirt Vagrant VM uses 512MB.
+	# Travis VMs should have around 7.5GB.
+	# Increasing it to 4GB should work.
+	sed -i Vagrantfile -e 's,^end$,  config.vm.provider :libvirt do |libvirt|'"\n"'    libvirt.memory = 4096;end'"\n"'end,g'
+	vagrant up --provider=libvirt
+	mkdir -p /root/.ssh
+	vagrant ssh-config >> /root/.ssh/config
+	ssh default sudo dnf install -y gcc git gnutls-devel nftables-devel libaio-devel \
+		libasan libcap-devel libnet-devel libnl3-devel make protobuf-c-devel \
+		protobuf-devel python3-flake8 python3-future python3-protobuf \
+		python3-junit_xml rubygem-asciidoctor iptables libselinux-devel libbpf-devel
+	# Disable sssd to avoid zdtm test failures in pty04 due to sssd socket
+	ssh default sudo systemctl mask sssd
+	ssh default cat /proc/cmdline
+}
+
+fedora-no-vdso() {
+	ssh default sudo grubby --update-kernel ALL --args="vdso=0"
+	vagrant reload
+	ssh default cat /proc/cmdline
+	ssh default 'cd /vagrant; tar xf criu.tar; cd criu; make -j 4'
+	# Excluding two cgroup tests which seem to fail because of cgroup2
+	ssh default 'cd /vagrant/criu/test; sudo ./zdtm.py run -a --keep-going'
+}
+
+$1