Install LXC in workflow

.github/workflows/lxc-build.yml

@@ -20,6 +20,14 @@ jobs:
         run: packer validate piston.pkr.hcl
         working-directory: container
       
+      - name: Install LXC
+        run: |
+          apt install -y lxc lxc-templates debootstrap libvirt0
+          echo "lxc.net.0.type = veth" > /etc/lxc/default.conf
+          echo "lxc.net.0.link = lxcbr0" >> /etc/lxc/default.conf
+          echo "lxc.net.0.flags = up" >> /etc/lxc/default.conf
+          systemctl start lxc-net
+
       # build container
       - name: Build Artifact
         run: packer build -var 'make_threads=32' piston.pkr.hcl