Fix gates out of disk space

Sometimes gates fails due lack of disk space,

This change mounts a second disk in opt and moves
registry data to opt.
Disk format commands are excepts from devstack-gate:
https://github.com/openstack-infra/devstack-gate/blob/dc49f9e6eb18e42c6b175e4e146fa8f3b7633279/functions.sh#L306

Change-Id: I606aa491b8cbf678e83281bad1a0ff39d3920ff2
Closes-Bug: #1713652

tools/setup_Debian.sh

@@ -34,6 +34,25 @@ function setup_disk {
         DEV=$(losetup -a | awk -F: '/\/docker/ {print $1}')
     fi
 
+# Excerpts from https://github.com/openstack-infra/devstack-gate/blob/dc49f9e6eb18e42c6b175e4e146fa8f3b7633279/functions.sh#L306
+    if [ -b /dev/xvde ]; then
+        DEV2='/dev/xvde'
+        if mount | grep ${DEV2} > /dev/null; then
+            echo "*** ${DEV2} appears to already be mounted"
+            echo "*** ${DEV2} unmounting and reformating"
+            sudo umount ${DEV2}
+        fi
+        sudo parted ${DEV2} --script -- mklabel msdos
+        sync
+        sudo partprobe
+        sudo mkfs.ext4 ${DEV2}
+        sudo mount ${DEV2} /mnt
+        sudo find /opt/ -mindepth 1 -maxdepth 1 -exec mv {} /mnt/ \;
+        sudo umount /mnt
+        sudo mount ${DEV2} /opt
+        grep -q ${DEV2} /proc/mounts || exit 1
+    fi
+
     # Format Disks and setup Docker to use BTRFS
     sudo parted ${DEV} -s -- mklabel msdos
     sudo rm -rf /var/lib/docker

tools/setup_RedHat.sh

@@ -18,6 +18,25 @@ function setup_disk {
         DEV=$(losetup -a | awk -F: '/\/docker/ {print $1}')
     fi
 
+# Excerpts from https://github.com/openstack-infra/devstack-gate/blob/dc49f9e6eb18e42c6b175e4e146fa8f3b7633279/functions.sh#L306
+    if [ -b /dev/xvde ]; then
+        DEV2='/dev/xvde'
+        if mount | grep ${DEV2} > /dev/null; then
+            echo "*** ${DEV2} appears to already be mounted"
+            echo "*** ${DEV2} unmounting and reformating"
+            sudo umount ${DEV2}
+        fi
+        sudo parted ${DEV2} --script -- mklabel msdos
+        sync
+        sudo partprobe
+        sudo mkfs.ext4 ${DEV2}
+        sudo mount ${DEV2} /mnt
+        sudo find /opt/ -mindepth 1 -maxdepth 1 -exec mv {} /mnt/ \;
+        sudo umount /mnt
+        sudo mount ${DEV2} /opt
+        grep -q ${DEV2} /proc/mounts || exit 1
+    fi
+
     # Format Disks and setup Docker to use BTRFS
     sudo parted ${DEV} -s -- mklabel msdos
     sudo rm -rf /var/lib/docker

tools/setup_gate.sh

@@ -158,7 +158,7 @@ function setup_logging {
 }
 
 function prepare_images {
-    sudo docker run -d -p 4000:5000 --restart=always -v /tmp/kolla_registry/:/var/lib/registry --name registry registry:2
+    sudo docker run -d -p 4000:5000 --restart=always -v /opt/kolla_registry/:/var/lib/registry --name registry registry:2
 
     # NOTE(Jeffrey4l): Zuul adds all changes depend on to ZUUL_CHANGES
     # variable. if find "openstack/kolla:" string, it means this patch depends
@@ -175,7 +175,7 @@ function prepare_images {
         filename=${BASE_DISTRO}-${INSTALL_TYPE}-registry-${BRANCH}.tar.gz
         wget -q -c -O "/tmp/$filename" \
             "${NODEPOOL_TARBALLS_MIRROR}/kolla/images/${TMP_REGISTRY}${filename}"
-        sudo tar xzf "/tmp/$filename" -C /tmp/kolla_registry
+        sudo tar xzf "/tmp/$filename" -C /opt/kolla_registry
     fi
 }