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mysql: reorganize evomariabackup to use mtree instead of our own dir-check
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Jérémy Lecour 2022-06-05 21:48:01 +02:00 committed by Jérémy Lecour
parent c4023a4f49
commit 6d0e49ba90
2 changed files with 99 additions and 58 deletions
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2
CHANGELOG.md
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@ -14,6 +14,8 @@ The **patch** part changes is incremented if multiple releases happen the same m
### Changed
* mysql: reorganize evomariabackup to use mtree instead of our own dir-check
### Fixed
### Removed

155
mysql/files/evomariabackup.sh
View file

@ -20,12 +20,18 @@ show_help() {
cat <<EOF
Usage: evomariabackup --backup-dir /path/to/mariabackup-target --compress-file /path/to/compressed.tgz
Options
--backup-dir mariabackup target directory
--compress-file File name for the compressed version
--backup Force backup phase
--no-backup Skip backup phase
--backup-dir mariabackup target directory
it enables backup phase if not explicitly disabled
--compress Force compress phase
--no-compress Skip compress phase
--compress-file File name for the compressed version
it enables backup phase if not explicitly disabled
--mtree Force mtree phase
--no-mtree Skip mtree phase
--mtree-file File name for the mtree specification
it enables mtree phase if not explicitly disabled
--log-file Log file to send messages
--post-backup-hook Script to execute after other tasks
--verbose Output much more information (to stdout/stderr or the log file)
@ -36,10 +42,11 @@ Options
-h|--help|-? Display help
-V|--version Display version, authors and license
Example usage for a backup then compress :
Example usage for a backup, mtree then compress :
# /usr/local/bin/evomariabackup --verbose \
--backup-dir /backup/mariabackup/current \
--compress-file /backup/mariabackup/compressed/$(date +\%H).tgz \
--backup --backup-dir /backup/mariabackup/current \
--mtree --mtree-file /backup/mariabackup/current.mtree \
--compress --compress-file /backup/mariabackup/compressed/$(date +\%H).tgz \
--log-file /var/log/evomariabackup.log
max-age possible values:
@ -140,7 +147,7 @@ duration_in_seconds() {
}
lock_file_created_at() {
created_at=$(stat -c %Z "${lock_file}")
log_debug "Lock file ${lock_file} created at ${created_at}"
log_debug "Lock file \`${lock_file}' created at ${created_at}"
echo "${created_at}"
}
@ -149,7 +156,7 @@ lock_file_age() {
now=$(date +"%s")
age=$(( now - last_change ))
log_debug "Lock file ${lock_file} is ${age} seconds old"
log_debug "Lock file \`${lock_file}' is ${age} seconds old"
echo "${created_at}"
}
@ -199,7 +206,7 @@ kill_or_clean_lockfile() {
fi
# Remove the lock file
rm -f "${lock_file}"
log_debug "Lock file ${lock_file} has been removed"
log_debug "Lock file \`${lock_file}' has been removed"
fi
}
new_lock_file() {
@ -208,9 +215,9 @@ new_lock_file() {
if mkdir --parents "${lock_dir}"; then
echo $$ > "${lock_file}"
log_debug "Lock file '${lock_file}' has been created"
log_debug "Lock file \`${lock_file}' has been created"
else
log_fatal "Failed to acquire lock file '${lock_file}'. Abort."
log_fatal "Failed to acquire lock file \`${lock_file}'. Abort."
exit 1
fi
}
@ -222,30 +229,30 @@ check_backup_dir() {
if [ -d "${backup_dir:?}" ]; then
if [ "$(ls -A "${backup_dir:?}")" ]; then
if is_mariabackup_directory "${backup_dir:?}"; then
log_debug "The backup directory ${backup_dir:?} is not empty but looks like a mariabackup target. Let's clear it."
log_debug "The backup directory \`${backup_dir:?}' is not empty but looks like a mariabackup target. Let's clear it."
rm -rf "${backup_dir:?}"
else
log_fatal "The backup directory ${backup_dir:?} is not empty and doesn't look like a mariabackup target. Please verify and clear the directory if you are sure."
log_fatal "The backup directory \`${backup_dir:?}' is not empty and doesn't look like a mariabackup target. Please verify and clear the directory if you are sure."
exit 1
fi
else
log_debug "The backup directory ${backup_dir:?} exists but is empty. Let's proceed."
log_debug "The backup directory \`${backup_dir:?}' exists but is empty. Let's proceed."
fi
else
log_debug "The backup directory ${backup_dir:?} doesn't exist. Let's proceed."
log_debug "The backup directory \`${backup_dir:?}' doesn't exist. Let's proceed."
fi
mkdir -p "${backup_dir:?}"
}
check_compress_dir() {
if [ -d "${compress_dir:?}" ]; then
log_debug "The compress_dir directory ${compress_dir:?} exists. Let's proceed."
log_debug "The compress_dir directory \`${compress_dir:?}' exists. Let's proceed."
else
log_debug "The compress_dir directory ${compress_dir:?} doesn't exist. Let's proceed."
log_debug "The compress_dir directory \`${compress_dir:?}' doesn't exist. Let's proceed."
fi
mkdir -p "${compress_dir:?}"
}
backup() {
backup_phase() {
if [ -z "${backup_dir}" ]; then
log_fatal "backup-dir option is empty"
else
@ -254,7 +261,7 @@ backup() {
mariabackup_bin=$(command -v mariabackup)
if [ -z "${mariabackup_bin}" ]; then
log_fatal "Couldn't find mariabackup.\nUse 'apt install mariadb-backup'."
log_fatal "Couldn't find mariabackup.\nYou can install it with 'apt install mariadb-backup'."
exit 1
fi
@ -312,46 +319,44 @@ backup() {
log_info "END mariabackup prepare phase"
fi
}
list_files_with_size() {
path=$1
find "${path}" -type f -exec du --bytes {} \; | sort -k2
}
dircheck_prepare() {
mtree_phase() {
if [ -z "${backup_dir}" ]; then
log_fatal "backup-dir option is empty"
exit 1
elif [ -e "${backup_dir}" ] && [ ! -d "${backup_dir}" ]; then
log_fatal "backup directory '${backup_dir}' exists but is not a directory"
log_fatal "backup directory \`${backup_dir}' exists but is not a directory"
exit 1
fi
dircheck_cmd="dir-check"
dircheck_bin=$(command -v ${dircheck_cmd})
if [ -z "${dircheck_bin}" ]; then
log_fatal "Couldn't find ${dircheck_cmd}."
if [ -z "${mtree_file}" ]; then
mtree_file="${backup_dir}.mtree"
fi
mtree_cmd="mtree"
mtree_bin=$(command -v ${mtree_cmd})
if [ -z "${mtree_bin}" ]; then
log_fatal "Couldn't find ${mtree_cmd}.\nYou can install it with 'apt install mtree-netbsd'."
exit 1
fi
backup_parent_dir=$(dirname "${backup_dir}")
backup_final_dir=$(basename "${backup_dir}")
log_info "BEGIN dir-check phase"
cwd=${PWD}
cd "${backup_parent_dir}" || log_fatal "Impossible to change to ${backup_parent_dir}"
log_info "BEGIN mtree phase"
log_debug "Store mtree specification of \`${backup_dir}' to \`${mtree_file}' using \`${mtree_bin}'"
"${dircheck_bin}" --prepare --dir "${backup_final_dir}"
"${mtree_bin}" -x -c -p "${backup_dir}" > "${mtree_file}"
cd ${cwd} || log_fatal "Impossible to change back to ${cwd}"
log_info "END dir-check phase"
log_info "END mtree phase"
}
compress() {
compress_phase() {
compress_dir=$(dirname "${compress_file}")
if [ -z "${backup_dir}" ]; then
log_fatal "backup-dir option is empty"
exit 1
elif [ -e "${backup_dir}" ] && [ ! -d "${backup_dir}" ]; then
log_fatal "backup directory '${backup_dir}' exists but is not a directory"
log_fatal "backup directory \`${backup_dir}' exists but is not a directory"
exit 1
fi
if [ -z "${compress_file}" ]; then
@ -370,13 +375,13 @@ compress() {
elif [ -n "${gzip_bin}" ]; then
compress_program="${gzip_bin} -6"
else
log_fatal "Couldn't find pigz nor gzip.\nUse 'apt install pigz' or 'apt install gzip'."
log_fatal "Couldn't find pigz nor gzip.\nYou can install it with 'apt install pigz' or 'apt install gzip'."
exit 1
fi
if ! is_quiet; then
log_info "BEGIN compression phase"
log_debug "Compression of ${backup_dir} to ${compress_file} using \`${compress_program}'"
log_debug "Compression of \`${backup_dir}' to \`${compress_file}' using \`${compress_program}'"
fi
if is_quiet || ! is_verbose ; then
tar --use-compress-program="${compress_program}" -cf "${compress_file}" "${backup_dir}" >/dev/null 2>&1
@ -392,13 +397,13 @@ compress() {
fi
if [ ${tar_rc} -ne 0 ]; then
log_fatal "An error occured while compressing ${backup_dir} to ${compress_file}"
log_fatal "An error occured while compressing \`${backup_dir}' to \`${compress_file}'"
exit 1
elif ! is_quiet; then
log_info "END compression phase"
fi
}
post_backup_hook() {
post_backup_hook_phase() {
if [ -x "${post_backup_hook}" ]; then
if ! is_quiet; then
@ -438,19 +443,19 @@ main() {
new_lock_file "${lock_file}"
if [ "${do_backup}" = "1" ] && [ -n "${backup_dir}" ]; then
backup
backup_phase
fi
if [ "${do_dircheck}" = "1" ] && [ -n "${backup_dir}" ]; then
dircheck_prepare
if [ "${do_mtree}" = "1" ] && [ -n "${backup_dir}" ]; then
mtree_phase
fi
if [ "${do_compress}" = "1" ] && [ -n "${compress_file}" ]; then
compress
compress_phase
fi
if [ -n "${post_backup_hook}" ]; then
post_backup_hook
post_backup_hook_phase
fi
if ! is_quiet; then
@ -468,7 +473,8 @@ max_age=""
force_unlock=""
do_backup=""
backup_dir=""
do_dircheck=""
do_mtree=""
mtree_file=""
do_compress=""
compress_file=""
post_backup_hook=""
@ -530,14 +536,6 @@ while :; do
log_fatal '"--backup-dir" requires a non-empty option argument.'
;;
--dir-check)
do_dircheck=1
;;
--no-dir-check)
do_dircheck=0
;;
--compress)
do_compress=1
;;
@ -570,6 +568,38 @@ while :; do
log_fatal '"--compress-file" requires a non-empty option argument.'
;;
--mtree)
do_mtree=1
;;
--no-mtree)
do_mtree=0
;;
--mtree-file)
# with value separated by space
if [ -n "$2" ]; then
mtree_file="$2"
if [ -z "${do_mtree}" ]; then
do_mtree=1
fi
shift
else
log_fatal '"--mtree-file" requires a non-empty option argument.'
fi
;;
--mtree-file=?*)
# with value speparated by =
mtree_file=${1#*=}
if [ -z "${do_mtree}" ]; then
do_mtree=1
fi
;;
--mtree-file=)
# without value
log_fatal '"--mtree-file" requires a non-empty option argument.'
;;
--lock-file)
# with value separated by space
if [ -n "$2" ]; then
@ -647,7 +677,7 @@ while :; do
if tty -s; then
printf 'Unknown option : %s\n' "$1" >&2
echo "" >&2
show_usage >&2
show_help >&2
exit 1
else
log_fatal 'Unknown option : %s\n' "$1" >&2
@ -669,8 +699,17 @@ verbose=${verbose:-0}
quiet=${quiet:-0}
max_age="${max_age:-1d}"
force_unlock=${force_unlock:-0}
do_backup="${do_backup:-1}"
do_dircheck="${do_dircheck:-0}"
do_compress="${do_compress:-0}"
# Enable backup phase if not disabled and backup_dir is set
if [ -z "${do_backup}" ] && [ -n "${backup_dir}" ]; then
do_backup="1"
fi
# Enable mtree phase if not disabled and mtree_file is set
if [ -z "${do_mtree}" ] && [ -n "${mtree_file}" ]; then
do_mtree="1"
fi
# Enable compress phase if not disabled and compress_file is set
if [ -z "${do_compress}" ] && [ -n "${compress_file}" ]; then
do_compress="1"
fi
main