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Add snapshot management support
This commit is contained in:
Martin Wimpress
parent
fb627583b9
commit
a79e16e1b7
2 changed files with 98 additions and 23 deletions
12
README.md
12
README.md
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@ -82,10 +82,12 @@ Usage
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quickemu --vm ubuntu.conf
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You can also pass optional parameters
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--delete : Delete the disk image.
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--efi : Enable EFI BIOS.
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--restore : Restore the snapshot.
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--snapshot : Create a disk snapshot.
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--delete : Delete the disk image.
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--efi : Enable EFI BIOS.
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--snapshot apply <tag> : Apply/restore a snapshot.
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--snapshot create <tag> : Create a snapshot.
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--snapshot delete <tag> : Delete a snapshot.
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--snapshot info : Show disk/snapshot info.
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```
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## TODO
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@ -93,7 +95,7 @@ You can also pass optional parameters
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- [x] Make display configuration more robust
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- [x] Improve stdout presentation
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- [x] Make disk image optionally size configurable
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- [ ] Improve snapshot management
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- [x] Improve snapshot management
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- [ ] Create desktop launcher for a VM
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- [x] Fix Virgil 3D on EFI boot
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- [x] Get QEMU `-audiodev` working for audio input, something like:
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109
quickemu
109
quickemu
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@ -9,25 +9,67 @@ function disk_delete() {
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fi
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}
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function vm_restore() {
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if [ -f "${disk_img_snapshot}" ]; then
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mv "${disk_img_snapshot}" "${disk_img}"
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function snapshot_apply() {
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local snapshot_tag="${1}"
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if [ -z "${snapshot_tag}" ]; then
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echo "ERROR! No snapshot tag provided."
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exit
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fi
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if [ -e "${disk_img}" ]; then
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${QEMU_IMG} snapshot -q -a "${snapshot_tag}" "${disk_img}"
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if [ $? -eq 0 ]; then
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echo "SUCCESS! Applied snapshot ${snapshot_tag} to ${disk_img}"
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else
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echo "ERROR! Failed to apply snapshot ${snapshot_id} to ${disk_img}"
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fi
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else
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echo "NOTE! ${disk_img} not found. Doing nothing."
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fi
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echo "SUCCESS! Restored ${disk_img_snapshot}"
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exit 0
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}
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function vm_snapshot() {
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if [ -f "${disk_img_snapshot}" ]; then
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mv "${disk_img_snapshot}" "${disk_img_snapshot}.old"
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function snapshot_create() {
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local snapshot_tag="${1}"
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if [ -z "${snapshot_tag}" ]; then
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echo "ERROR! No snapshot tag provided."
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exit
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fi
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qemu-img create -b "${disk_img}" -f qcow2 "${disk_img_snapshot}" -q
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if [ $? -eq 0 ]; then
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echo "SUCCESS! Created ${disk_img_snapshot}"
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if [ -e "${disk_img}" ]; then
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${QEMU_IMG} snapshot -q -c "${snapshot_tag}" "${disk_img}"
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if [ $? -eq 0 ]; then
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echo "SUCCESS! Created snapshot ${snapshot_tag} of ${disk_img}"
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else
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echo "ERROR! Failed to create snapshot ${snapshot_tag} of ${disk_img}"
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fi
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else
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echo "ERROR! Failed to create ${disk_img_snapshot}"
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echo "NOTE! ${disk_img} not found. Doing nothing."
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fi
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}
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function snapshot_delete() {
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local snapshot_tag="${1}"
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if [ -z "${snapshot_tag}" ]; then
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echo "ERROR! No snapshot tag provided."
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exit
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fi
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if [ -e "${disk_img}" ]; then
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${QEMU_IMG} snapshot -q -d "${snapshot_tag}" "${disk_img}"
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if [ $? -eq 0 ]; then
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echo "SUCCESS! Deleted snapshot ${snapshot_tag} of ${disk_img}"
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else
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echo "ERROR! Failed to delete snapshot ${snapshot_tag} of ${disk_img}"
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fi
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else
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echo "NOTE! ${disk_img} not found. Doing nothing."
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fi
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}
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function snapshot_info() {
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if [ -e "${disk_img}" ]; then
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${QEMU_IMG} info "${disk_img}"
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fi
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exit 0
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}
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function get_port() {
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@ -207,7 +249,8 @@ ENABLE_EFI=0
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readonly QEMU="/snap/bin/qemu-virgil"
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readonly QEMU_IMG="/snap/bin/qemu-virgil.qemu-img"
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readonly LAUNCHER=$(basename $0)
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SNAPSHOT=0
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SNAPSHOT_ACTION=""
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SNAPSHOT_TAG=""
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VM=""
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while [ $# -gt 0 ]; do
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@ -219,7 +262,18 @@ while [ $# -gt 0 ]; do
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DELETE=1
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shift;;
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-snapshot|--snapshot)
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SNAPSHOT=1
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SNAPSHOT_ACTION="${2}"
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if [ -z "${SNAPSHOT_ACTION}" ]; then
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echo "ERROR! No snapshot action provided."
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exit 1
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fi
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shift
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SNAPSHOT_TAG="${2}"
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if [ -z "${SNAPSHOT_TAG}" ] && [ "${SNAPSHOT_ACTION}" != "info" ]; then
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echo "ERROR! No snapshot tag provided."
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exit 1
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fi
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shift
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shift;;
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-vm|--vm)
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VM="$2"
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@ -253,11 +307,30 @@ fi
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if [ ${DELETE} -eq 1 ]; then
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disk_delete
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exit 0
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exit
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fi
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if [ ${SNAPSHOT} -eq 1 ]; then
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vm_snapshot
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if [ -n "${SNAPSHOT_ACTION}" ]; then
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case ${SNAPSHOT_ACTION} in
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apply)
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snapshot_apply "${SNAPSHOT_TAG}"
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snapshot_info
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exit;;
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create)
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snapshot_create "${SNAPSHOT_TAG}"
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snapshot_info
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exit;;
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delete)
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snapshot_delete "${SNAPSHOT_TAG}"
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snapshot_info
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exit;;
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info)
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snapshot_info
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exit;;
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*)
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echo "ERROR! \"${SNAPSHOT_ACTION}\" is not a supported snapshot action."
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usage;;
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esac
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fi
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vm_boot
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