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https://github.com/ostreedev/ostree.git
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96 lines
3.4 KiB
Bash
Executable File
96 lines
3.4 KiB
Bash
Executable File
#!/bin/bash
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set -xeuo pipefail
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# https://github.com/ostreedev/ostree/issues/2670
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. ${KOLA_EXT_DATA}/libinsttest.sh
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# make two fake ostree commits with modified kernels of about the same size
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cd /root
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mkdir -p rootfs/usr/lib/modules/`uname -r`
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cp /usr/lib/modules/`uname -r`/vmlinuz rootfs/usr/lib/modules/`uname -r`
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echo 1 >> rootfs/usr/lib/modules/`uname -r`/vmlinuz
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ostree commit --base "${host_refspec}" -P --tree=dir=rootfs -b modkernel1
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echo 1 >> rootfs/usr/lib/modules/`uname -r`/vmlinuz
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ostree commit --base "${host_refspec}" -P --tree=dir=rootfs -b modkernel2
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assert_bootfs_has_n_bootcsum_dirs() {
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local expected=$1; shift
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local actual
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actual=$(ls -d /boot/ostree/${host_osname}-* | wc -l)
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if [ "$expected" != "$actual" ]; then
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ls -l /boot/ostree
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assert_not_reached "expected $expected bootcsum dirs, found $actual"
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fi
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}
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consume_bootfs_space() {
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local free_blocks=$(stat --file-system /boot -c '%a')
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local block_size=$(stat --file-system /boot -c '%s')
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# leave 1 block free
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unshare -m bash -c \
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"mount -o rw,remount /boot && \
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dd if=/dev/zero of=/boot/bigfile count=$((free_blocks-1)) bs=${block_size}"
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}
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unconsume_bootfs_space() {
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unshare -m bash -c "mount -o rw,remount /boot && rm /boot/bigfile"
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}
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assert_bootfs_has_n_bootcsum_dirs 1
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# first, deploy our second deployment on a filled up bootfs
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# the booted deployment is never pruned, so this is a hopeless case and auto-pruning can't save us
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consume_bootfs_space
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rpm-ostree rebase :modkernel1
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if OSTREE_SYSROOT_OPTS=early-prune ostree admin finalize-staged |& tee out.txt; then
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assert_not_reached "successfully wrote to filled up bootfs"
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fi
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assert_file_has_content out.txt "Disabling auto-prune optimization; insufficient space left in bootfs"
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assert_file_has_content out.txt "No space left on device"
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rm out.txt
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unconsume_bootfs_space
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rpm-ostree cleanup -bpr
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# OK, now deploy our second deployment for realsies on a bootfs with ample space
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# and sanity-check that auto-pruning doesn't kick in
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assert_bootfs_has_n_bootcsum_dirs 1
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rpm-ostree rebase :modkernel1
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OSTREE_SYSROOT_OPTS=early-prune ostree admin finalize-staged |& tee out.txt
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assert_not_file_has_content out.txt "updating bootloader in two steps"
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rm out.txt
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# and put it in rollback position; this is the deployment that'll get auto-pruned
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rpm-ostree rollback
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assert_bootfs_has_n_bootcsum_dirs 2
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bootloader_orig=$(sha256sum /boot/loader/entries/*)
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# now try to deploy a third deployment without early pruning; we should hit ENOSPC
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consume_bootfs_space
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rpm-ostree rebase :modkernel2
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if ostree admin finalize-staged |& tee out.txt; then
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assert_not_reached "successfully wrote kernel without auto-pruning"
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fi
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assert_file_has_content out.txt "No space left on device"
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rm out.txt
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# there's 3 bootcsums now because it'll also have the partially written
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# bootcsum dir we were creating when we hit ENOSPC; this verifies that all the
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# deployments have different bootcsums
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assert_bootfs_has_n_bootcsum_dirs 3
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# but the bootloader wasn't updated
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assert_streq "$bootloader_orig" "$(sha256sum /boot/loader/entries/*)"
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# now, try again but with auto-pruning enabled
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rpm-ostree rebase :modkernel2
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OSTREE_SYSROOT_OPTS=early-prune ostree admin finalize-staged |& tee out.txt
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assert_file_has_content out.txt "updating bootloader in two steps"
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rm out.txt
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assert_bootfs_has_n_bootcsum_dirs 2
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assert_not_streq "$bootloader_orig" "$(sha256sum /boot/loader/entries/*)"
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echo "ok bootfs auto-prune"
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