git: 0db0821fb8d7 - releng/14.1 - release: Rework vm_extra_pre_umount
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Date: Tue, 14 May 2024 21:38:35 UTC
The branch releng/14.1 has been updated by cperciva: URL: https://cgit.FreeBSD.org/src/commit/?id=0db0821fb8d7d0eb3f2ae7d219ceca1545f85bd0 commit 0db0821fb8d7d0eb3f2ae7d219ceca1545f85bd0 Author: Colin Percival <cperciva@FreeBSD.org> AuthorDate: 2024-05-06 20:26:52 +0000 Commit: Colin Percival <cperciva@FreeBSD.org> CommitDate: 2024-05-14 21:38:09 +0000 release: Rework vm_extra_pre_umount The vm_extra_pre_umount function in vmimage.subr served two purposes: It removed /etc/resolv.conf and /qemu (if cross-building), and it provided a function for cloudware to override in order to make cloud specific changes to the filesystem before constructing a disk image. This resulted in a number of bugs: 1. When cross-building, the emulator binary was left as /qemu in the Azure, GCE, Openstack and Vagrant images. 2. The build host's resolv.conf was left as /etc/resolv.conf in the basic-ci and basic-cloudinit images. 3. When building GCE images, a Google-specific resolv.conf file was constructed, and then deleted before the disk image was created. Move the bits needed for running code inside a VM staging directory from vm_install_base into a new vm_emulation_setup routine, and move the corresponding cleanup bits from vm_extra_pre_umount to a new vm_emulation_cleanup routine. Remove the /qemu and /etc/resolv.conf cleanups from the cloudware configuration files (where they exist) since we will now be running vm_emulation_cleanup to remove those even when vm_extra_pre_umount has been overridden. Override vm_emulation_cleanup in gce.conf since in that one case (and *only* that one case) we don't want to clean up resolv.conf (since it was constructed for the VM image rather than copied from the host). releng/14.1 candidate. MFC after: 1 week Approved by: re (delphij) Sponsored by: https://www.patreon.com/cperciva (cherry picked from commit 0b1c5628c74a37e2aa2aa3769c606d3e826302f8) (cherry picked from commit c5342be39c1ab37ca41e74aabdd7f507a6c6e036) --- release/scripts/mk-vmimage.sh | 3 ++- release/tools/azure.conf | 2 -- release/tools/ec2.conf | 5 ----- release/tools/gce.conf | 10 +++++++++- release/tools/oci.conf | 5 ----- release/tools/openstack.conf | 2 -- release/tools/vagrant-virtualbox.conf | 1 - release/tools/vagrant-vmware.conf | 1 - release/tools/vmimage.subr | 23 +++++++++++------------ 9 files changed, 22 insertions(+), 30 deletions(-) diff --git a/release/scripts/mk-vmimage.sh b/release/scripts/mk-vmimage.sh index ca6a359affbd..dfd91f43140d 100755 --- a/release/scripts/mk-vmimage.sh +++ b/release/scripts/mk-vmimage.sh @@ -97,13 +97,14 @@ main() { vm_create_base vm_install_base + vm_emulation_setup vm_extra_install_base vm_extra_install_packages vm_extra_install_ports vm_extra_enable_services vm_extra_pre_umount vm_extra_pkg_rmcache - cleanup + vm_emulation_cleanup vm_copy_base vm_create_disk || return 0 vm_extra_create_disk diff --git a/release/tools/azure.conf b/release/tools/azure.conf index b6526f21e474..9da2b19de694 100644 --- a/release/tools/azure.conf +++ b/release/tools/azure.conf @@ -53,7 +53,5 @@ EOF touch ${DESTDIR}/firstboot - rm -f ${DESTDIR}/etc/resolv.conf - return 0 } diff --git a/release/tools/ec2.conf b/release/tools/ec2.conf index a233bf5981c1..ce09ab0d2367 100644 --- a/release/tools/ec2.conf +++ b/release/tools/ec2.conf @@ -102,10 +102,5 @@ EOF # The first time the AMI boots, run "first boot" scripts. touch ${DESTDIR}/firstboot - if ! [ -z "${QEMUSTATIC}" ]; then - rm -f ${DESTDIR}/${EMULATOR} - fi - rm -f ${DESTDIR}/etc/resolv.conf - return 0 } diff --git a/release/tools/gce.conf b/release/tools/gce.conf index aad4a74d2e39..5ad83bcded53 100644 --- a/release/tools/gce.conf +++ b/release/tools/gce.conf @@ -118,7 +118,15 @@ EOF touch ${DESTDIR}/firstboot - rm -f ${DESTDIR}/etc/resolv.conf + return 0 +} +# Do everything except deleting resolv.conf since we construct our own +# Googlized resolv.conf file in vm_extra_install_base. +vm_emulation_cleanup() { + if ! [ -z "${QEMUSTATIC}" ]; then + rm -f ${DESTDIR}/${EMULATOR} + fi + umount_loop ${DESTDIR}/dev return 0 } diff --git a/release/tools/oci.conf b/release/tools/oci.conf index c57a7683a500..a4fe54ad3031 100644 --- a/release/tools/oci.conf +++ b/release/tools/oci.conf @@ -90,10 +90,5 @@ EOF touch ${DESTDIR}/firstboot - if ! [ -z "${QEMUSTATIC}" ]; then - rm -f ${DESTDIR}/${EMULATOR} - fi - rm -f ${DESTDIR}/etc/resolv.conf - return 0 } diff --git a/release/tools/openstack.conf b/release/tools/openstack.conf index 4c905fbae4ba..05d2d13bbb39 100644 --- a/release/tools/openstack.conf +++ b/release/tools/openstack.conf @@ -35,8 +35,6 @@ vm_extra_pre_umount() { echo 'ALL ALL=(ALL) NOPASSWD:ALL' >> \ ${DESTDIR}/usr/local/etc/sudoers.d/cloud-init - rm -f ${DESTDIR}/etc/resolv.conf - # The console is not interactive, so we might as well boot quickly. echo 'autoboot_delay="-1"' >> ${DESTDIR}/boot/loader.conf echo 'beastie_disable="YES"' >> ${DESTDIR}/boot/loader.conf diff --git a/release/tools/vagrant-virtualbox.conf b/release/tools/vagrant-virtualbox.conf index 4dd7ca8953ad..9e0e430bbc88 100644 --- a/release/tools/vagrant-virtualbox.conf +++ b/release/tools/vagrant-virtualbox.conf @@ -14,5 +14,4 @@ vm_extra_pre_umount () { # Setup the Vagrant common items vagrant_common - rm -f ${DESTDIR}/etc/resolv.conf } diff --git a/release/tools/vagrant-vmware.conf b/release/tools/vagrant-vmware.conf index 52ff7f1aac1a..fff929829222 100644 --- a/release/tools/vagrant-vmware.conf +++ b/release/tools/vagrant-vmware.conf @@ -18,5 +18,4 @@ vm_extra_pre_umount () { # Setup the Vagrant common items vagrant_common - rm -f ${DESTDIR}/etc/resolv.conf } diff --git a/release/tools/vmimage.subr b/release/tools/vmimage.subr index eda22e061c6d..72540dad14a8 100644 --- a/release/tools/vmimage.subr +++ b/release/tools/vmimage.subr @@ -83,8 +83,14 @@ vm_install_base() { echo "zfs_enable=\"YES\"" >> ${DESTDIR}/etc/rc.conf echo "zpool_reguid=\"zroot\"" >> ${DESTDIR}/etc/rc.conf echo "zpool_upgrade=\"zroot\"" >> ${DESTDIR}/etc/rc.conf + echo "kern.geom.label.disk_ident.enable=0" >> ${DESTDIR}/boot/loader.conf + echo "zfs_load=YES" >> ${DESTDIR}/boot/loader.conf fi + return 0 +} + +vm_emulation_setup() { if ! [ -z "${QEMUSTATIC}" ]; then export EMULATOR=/qemu cp ${QEMUSTATIC} ${DESTDIR}/${EMULATOR} @@ -94,15 +100,8 @@ vm_install_base() { mount -t devfs devfs ${DESTDIR}/dev chroot ${DESTDIR} ${EMULATOR} /usr/bin/newaliases chroot ${DESTDIR} ${EMULATOR} /bin/sh /etc/rc.d/ldconfig forcestart - umount_loop ${DESTDIR}/dev - cp /etc/resolv.conf ${DESTDIR}/etc/resolv.conf - if [ "${VMFS}" = zfs ]; then - echo "kern.geom.label.disk_ident.enable=0" >> ${DESTDIR}/boot/loader.conf - echo "zfs_load=YES" >> ${DESTDIR}/boot/loader.conf - fi - return 0 } @@ -136,15 +135,12 @@ vm_extra_install_packages() { if [ -z "${VM_EXTRA_PACKAGES}" ]; then return 0 fi - mkdir -p ${DESTDIR}/dev - mount -t devfs devfs ${DESTDIR}/dev chroot ${DESTDIR} ${EMULATOR} env ASSUME_ALWAYS_YES=yes \ /usr/sbin/pkg bootstrap -y for p in ${VM_EXTRA_PACKAGES}; do chroot ${DESTDIR} ${EMULATOR} env ASSUME_ALWAYS_YES=yes \ /usr/sbin/pkg install -y ${p} done - umount_loop ${DESTDIR}/dev return 0 } @@ -159,13 +155,16 @@ vm_extra_install_ports() { vm_extra_pre_umount() { # Prototype. When overridden, performs additional tasks within the # virtual machine environment prior to unmounting the filesystem. - # Note: When overriding this function, removing resolv.conf in the - # disk image must be included. + return 0 +} + +vm_emulation_cleanup() { if ! [ -z "${QEMUSTATIC}" ]; then rm -f ${DESTDIR}/${EMULATOR} fi rm -f ${DESTDIR}/etc/resolv.conf + umount_loop ${DESTDIR}/dev return 0 }