OCPBUGS-62790: Resize /var fs to 10GiB for ABI installations

data/data/agent/files/usr/local/bin/agent-gather

@@ -78,6 +78,8 @@ function gather_storage_data() {
 	cp /etc/mtab "${ARTIFACTS_DIR}/etc/mtab"
 	( >&2 echo -n ".")
 	lsblk > "${ARTIFACTS_DIR}/lsblk"
+	( >&2 echo -n ".")
+        df -h > "${ARTIFACTS_DIR}/df"
 	( >&2 echo " Done")
 }
 

data/data/bootstrap/files/usr/local/bin/node-image-pull.sh.template

@@ -34,6 +34,11 @@ if test -f /run/ostree-live; then
     mkdir -p "${ostree_repo}"
     echo "In live environment; creating temporary repo to pull node image"
     ostree init --mode=bare --repo="${ostree_repo}"
+
+    echo "Resizing /run/ephemeral_base tmpfs to 10GiB for ostree operations..."
+    # Use systemd-run to avoid inheriting MountFlags
+    systemd-run --wait --service-type=oneshot /usr/local/bin/resize-ephemeral.sh 10G
+
     # if there are layers, import all the content in the system repo for
     # layer-level deduping
     if [ -d /ostree/repo/refs/heads/ostree/container ]; then
@@ -85,6 +90,7 @@ ostree checkout --repo "${ostree_repo}" ${hardlink} coreos/node-image "${ostree_
 
 # in the assisted-installer case, nuke the temporary repo to save RAM
 if grep -q coreos.liveiso= /proc/cmdline; then
+    df -h /run/ephemeral
     echo "Deleting temporary repo"
     rm -rf "${ostree_repo}"
 fi

data/data/bootstrap/files/usr/local/bin/resize-ephemeral.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+
+set -eu
+
+TARGET_SIZE="$1"
+BASE_DIR="/run/ephemeral_base"
+LOOPBACK_FILE="${BASE_DIR}/loopfs"
+
+function get_size_bytes() {
+    printf "%d" "$(($(stat -f -c "%b * %s" "${BASE_DIR}")))"
+}
+
+TARGET_SIZE_BYTES="$(numfmt --from=iec "${TARGET_SIZE}")"
+CURRENT_SIZE_BYTES="$(get_size_bytes)"
+CURRENT_SIZE="$(numfmt --to=iec "${CURRENT_SIZE_BYTES}")"
+
+if ((TARGET_SIZE_BYTES > CURRENT_SIZE_BYTES)); then
+    echo "Expanding ephemeral base dir from ${CURRENT_SIZE} to ${TARGET_SIZE}"
+    mount -o remount,size="${TARGET_SIZE}" "${BASE_DIR}"
+
+    echo "Expanding ephemeral loopback"
+    truncate -s "$(get_size_bytes)" "${LOOPBACK_FILE}"
+
+    LOOPBACK_DEVICE="$(losetup -j "${LOOPBACK_FILE}" -O NAME -n)"
+    losetup -c "${LOOPBACK_DEVICE}"
+
+    echo "Expanding ephemeral filesystem"
+    xfs_growfs -d "${LOOPBACK_DEVICE}"
+else
+    echo "Ephemeral base dir size ${CURRENT_SIZE} is already larger than ${TARGET_SIZE}; not expanding"
+fi
+
+df -h