Cache cirros UEC images
Ironic uses them in its gate jobs, downloading every time. With
github broken all these jobs are failing now.
cirros-0.3.4-x86_64-disk.img file /opt/cache/files/cirros-0.3.4-x86_64-disk.img https://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-disk.img
cirros-0.3.5-x86_64-disk.img file /opt/cache/files/cirros-0.3.5-x86_64-disk.img https://download.cirros-cloud.net/0.3.5/cirros-0.3.5-x86_64-disk.img
cirros-0.4.0-x86_64-disk.img file /opt/cache/files/cirros-0.4.0-x86_64-disk.img https://download.cirros-cloud.net/0.4.0/cirros-0.4.0-x86_64-disk.img
+cirros-0.4.0-x86_64-uec.tar.gz file /opt/cache/files/cirros-0.4.0-x86_64-uec.tar.gz https://download.cirros-cloud.net/0.4.0/cirros-0.4.0-x86_64-uec.tar.gz
cirros-0.5.1-x86_64-disk.img file /opt/cache/files/cirros-0.5.1-x86_64-disk.img https://download.cirros-cloud.net/0.5.1/cirros-0.5.1-x86_64-disk.img
+cirros-0.5.1-x86_64-uec.tar.gz file /opt/cache/files/cirros-0.5.1-x86_64-uec.tar.gz https://download.cirros-cloud.net/0.5.1/cirros-0.5.1-x86_64-uec.tar.gz
cirros-0.5.1-aarch64-disk.img file /opt/cache/files/cirros-0.5.1-aarch64-disk.img https://download.cirros-cloud.net/0.5.1/cirros-0.5.1-aarch64-disk.img
etcd-v3.1.10-linux-amd64.tar.gz file /opt/cache/files/etcd-v3.1.10-linux-amd64.tar.gz https://github.com/etcd-io/etcd/releases/download/v3.1.10/etcd-v3.1.10-linux-amd64.tar.gz
etcd-v3.2.17-linux-amd64.tar.gz file /opt/cache/files/etcd-v3.2.17-linux-amd64.tar.gz https://github.com/etcd-io/etcd/releases/download/v3.2.17/etcd-v3.2.17-linux-amd64.tar.gz
