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10-db-backup
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10-db-backup
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#!/command/with-contenv bash
bootstrap_variables() {
sanity_var DB_TYPE "Set appropriate DB_TYPE"
case "${DB_TYPE,,}" in
couch* )
dbtype=couch
DB_PORT=${DB_PORT:-5984}
file_env 'DB_USER'
file_env 'DB_PASS'
;;
influx* )
dbtype=influx
case "${INFLUX_VERSION}" in
1) DB_PORT=${DB_PORT:-8088} ;;
2) DB_PORT=${DB_PORT:-8086} ;;
esac
file_env 'DB_USER'
file_env 'DB_PASS'
sanity_var INFLUX_VERSION "What InfluxDB version you are backing up from '1' or '2'"
;;
mongo* )
dbtype=mongo
if [ -n "${MONGO_CUSTOM_URI}" ] ; then
mongo_uri_proto=$(echo ${MONGO_CUSTOM_URI} | grep :// | sed -e's,^\(.*://\).*,\1,g')
mongo_uri_scratch="${MONGO_CUSTOM_URI/${mongo_uri_proto}/}"
mongo_uri_username_password=$(echo ${mongo_uri_scratch} | grep @ | rev | cut -d@ -f2- | rev)
if [ -n "${mongo_uri_username_password}" ]; then mongo_uri_scratch=$(echo ${mongo_uri_scratch} | rev | cut -d@ -f1 | rev) ; fi
mongo_uri_port=$(echo ${mongo_uri_scratch} | grep : | rev | cut -d: -f2- | rev)
if [ -n "${mongo_uri_port}" ]; then mongo_uri_port=$(echo ${mongo_uri_scratch} | rev | cut -d: -f1 | cut -d/ -f2 | rev) ; fi
mongo_uri_hostname=$(echo ${mongo_uri_scratch} | cut -d/ -f1 | cut -d: -f1 )
mongo_uri_database=$(echo ${mongo_uri_scratch} | cut -d/ -f2 | cut -d? -f1 )
mongo_uri_options=$(echo ${mongo_uri_scratch} | cut -d/ -f2 | cut -d? -f2 )
DB_NAME=${DB_NAME:-"${mongo_uri_database,,}"}
DB_HOST=${DB_HOST:-"${mongo_uri_hostname,,}"}
else
DB_PORT=${DB_PORT:-27017}
[[ ( -n "${DB_USER}" ) || ( -n "${DB_USER_FILE}" ) ]] && file_env 'DB_USER'
[[ ( -n "${DB_PASS}" ) || ( -n "${DB_PASS_FILE}" ) ]] && file_env 'DB_PASS'
[[ ( -n "${DB_USER}" ) ]] && MONGO_USER_STR=" --username ${DB_USER}"
[[ ( -n "${DB_PASS}" ) ]] && MONGO_PASS_STR=" --password ${DB_PASS}"
[[ ( -n "${DB_NAME}" ) ]] && MONGO_DB_STR=" --db ${DB_NAME}"
[[ ( -n "${DB_AUTH}" ) ]] && MONGO_AUTH_STR=" --authenticationDatabase ${DB_AUTH}"
fi
;;
"mysql" | "mariadb" )
dbtype=mysql
DB_PORT=${DB_PORT:-3306}
sanity_var DB_NAME "Database Name to backup. Multiple seperated by commas"
[[ ( -n "${DB_PASS}" ) || ( -n "${DB_PASS_FILE}" ) ]] && file_env 'DB_PASS'
[[ ( -n "${DB_PASS}" ) ]] && export MYSQL_PWD=${DB_PASS}
if var_true "${MYSQL_ENABLE_TLS}" ; then
if [ -n "${MYSQL_TLS_CA_FILE}" ] ; then
mysql_tls_args="--ssl_ca=${MYSQL_TLS_CA_FILE}"
fi
if [ -n "${MYSQL_TLS_CERT_FILE}" ] ; then
mysql_tls_args="${mysql_tls_args} --ssl_cert=${MYSQL_TLS_CERT_FILE}"
fi
if [ -n "${MYSQL_TLS_KEY_FILE}" ] ; then
mysql_tls_args="${mysql_tls_args} --ssl_key=${MYSQL_TLS_KEY_FILE}"
fi
if var_true "${TLS_VERIFY}" ; then
mysql_tls_args="${mysql_tls_args} --sslverify-server-cert"
fi
if [ -n "${MYSQL_TLS_VERSION}" ] ; then
mysql_tls_args="${mysql_tls_args} --tls_version=${MYSQL_TLS_VERSION}"
fi
fi
;;
"mssql" | "microsoftsql" )
apkArch="$(apk --print-arch)"; \
case "$apkArch" in
x86_64) mssql=true ;;
*) print_error "MSSQL cannot operate on $apkArch processor!" ; exit 1 ;;
esac
dbtype=mssql
DB_PORT=${DB_PORT:-1433}
;;
postgres* | "pgsql" )
dbtype=pgsql
DB_PORT=${DB_PORT:-5432}
[[ ( -n "${DB_PASS}" ) || ( -n "${DB_PASS_FILE}" ) ]] && file_env 'DB_PASS'
[[ ( -n "${DB_PASS}" ) ]] && POSTGRES_PASS_STR="PGPASSWORD=${DB_PASS}"
sanity_var DB_NAME "Database Name to backup. Multiple seperated by commas"
;;
"redis" )
dbtype=redis
DB_PORT=${DB_PORT:-6379}
[[ ( -n "${DB_PASS}" || ( -n "${DB_PASS_FILE}" ) ) ]] && file_env 'DB_PASS'
[[ ( -n "${DB_PASS}" ) ]] && REDIS_PASS_STR=" -a ${DB_PASS}"
;;
sqlite* )
dbtype=sqlite3
;;
* )
print_error "I don't recognize 'DB_TYPE=${DB_TYPE}' - Exitting.."
exit 99
;;
esac
if [ "${BACKUP_LOCATION,,}" = "s3" ] || [ "${BACKUP_LOCATION,,}" = "minio" ] && [ -n "${S3_KEY_ID}" ] && [ -n "${S3_KEY_SECRET}" ]; then
file_env 'S3_KEY_ID'
file_env 'S3_KEY_SECRET'
fi
}
backup_couch() {
prepare_dbbackup
target=couch_${DB_NAME}_${DB_HOST#*//}_${now}.txt
compression
pre_dbbackup ${DB_NAME}
print_notice "Dumping CouchDB database: '${DB_NAME}' ${compression_string}"
curl -sSL -X GET ${DB_HOST}:${DB_PORT}/${DB_NAME}/_all_docs?include_docs=true ${compress_cmd} | $compress_cmd > "${TEMP_LOCATION}"/"${target}"
exit_code=$?
check_exit_code $target
generate_checksum
move_dbbackup
post_dbbackup ${DB_NAME}
}
backup_influx() {
if [ "${DB_NAME,,}" = "all" ] ; then
print_debug "Preparing to back up everything"
db_names=justbackupeverything
else
db_names=$(echo "${DB_NAME}" | tr ',' '\n')
fi
case "${INFLUX_VERSION,,}" in
1 )
for db in ${db_names}; do
prepare_dbbackup
if [ "${db}" != "justbackupeverything" ] ; then bucket="-db ${db}" ; else db=all ; fi
target=influx_${db}_${DB_HOST#*//}_${now}
compression
pre_dbbackup $db
print_notice "Dumping Influx database: '${db}'"
influxd backup ${influx_compression} ${bucket} -portable -host ${DB_HOST}:${DB_PORT} ${EXTRA_OPTS} "${TEMP_LOCATION}"/"${target_dir}"
exit_code=$?
check_exit_code $target_dir
print_notice "Creating archive file of '${target_dir}' with tar ${compression_string}"
tar cf - "${TEMP_LOCATION}"/"${target_dir}" | $dir_compress_cmd > "${TEMP_LOCATION}"/"${target_dir}".tar"${extension}"
target=influx_${db}_${DB_HOST#*//}_${now}.tar${extension}
generate_checksum
move_dbbackup
post_dbbackup $db
done
;;
2 )
for db in ${db_names}; do
prepare_dbbackup
if [ "${db}" != "justbackupeverything" ] ; then bucket="--bucket $db" ; else db=all ; fi
target=influx2_${db}_${DB_HOST#*//}_${now}
compression
pre_dbbackup $db
print_notice "Dumping Influx2 database: '${db}'"
influx backup --org ${DB_USER} ${bucket} --host ${DB_HOST}:${DB_PORT} --token ${DB_PASS} ${EXTRA_OPTS} --compression none "${TEMP_LOCATION}"/"${target_dir}"
exit_code=$?
check_exit_code $target_dir
create_archive
target=influx2_${db}_${DB_HOST#*//}_${now}.tar${extension}
generate_checksum
move_dbbackup
post_dbbackup $db
done
;;
esac
}
backup_mongo() {
prepare_dbbackup
if [ "${ENABLE_COMPRESSION,,}" = "none" ] || [ "${ENABLE_COMPRESSION,,}" = "false" ] ; then
target=${dbtype}_${DB_NAME,,}_${DB_HOST,,}_${now}.archive
else
target=${dbtype}_${DB_NAME,,}_${DB_HOST,,}_${now}.archive.gz
mongo_compression="--gzip"
compression_string="and compressing with gzip"
fi
if [ -n "${MONGO_CUSTOM_URI}" ] ; then
mongo_backup_parameter="--uri=${MONGO_CUSTOM_URI} ${EXTRA_OPTS}"
else
mongo_backup_parameter="--host ${DB_HOST} --port ${DB_PORT} ${MONGO_USER_STR}${MONGO_PASS_STR}${MONGO_AUTH_STR}${MONGO_DB_STR} ${EXTRA_OPTS}"
fi
pre_dbbackup "${DB_NAME}"
print_notice "Dumping MongoDB database: '${DB_NAME}' ${compression_string}"
silent mongodump --archive=${TEMP_LOCATION}/${target} ${mongo_compression} ${mongo_backup_parameter}
exit_code=$?
check_exit_code $target
generate_checksum
move_dbbackup
post_dbbackup "${DB_NAME}"
}
backup_mssql() {
prepare_dbbackup
target=mssql_${DB_NAME,,}_${DB_HOST,,}_${now}.bak
compression
pre_dbbackup "${DB_NAME}"
print_notice "Dumping MSSQL database: '${DB_NAME}'"
silent /opt/mssql-tools18/bin/sqlcmd -C -S ${DB_HOST}\,${DB_PORT} -U ${DB_USER} -P ${DB_PASS} -Q "BACKUP DATABASE [${DB_NAME}] TO DISK = N'${TEMP_LOCATION}/${target}' WITH NOFORMAT, NOINIT, NAME = '${DB_NAME}-full', SKIP, NOREWIND, NOUNLOAD, STATS = 10"
exit_code=$?
check_exit_code $target
generate_checksum
move_dbbackup
post_dbbackup $DB_NAME
}
backup_mysql() {
if var_true "${MYSQL_SINGLE_TRANSACTION}" ; then
single_transaction="--single-transaction"
fi
if var_true "${MYSQL_STORED_PROCEDURES}" ; then
stored_procedures="--routines"
fi
if [ "${DB_NAME,,}" = "all" ] ; then
print_debug "Preparing to back up everything except for information_schema and _* prefixes"
db_names=$(mysql -h ${DB_HOST} -P $DB_PORT -u$DB_USER ${mysql_tls_args} ${EXTRA_OPTS} --batch -e "SHOW DATABASES;" | grep -v Database | grep -v schema )
if [ -n "${DB_NAME_EXCLUDE}" ] ; then
db_names_exclusions=$(echo "${DB_NAME_EXCLUDE}" | tr ',' '\n')
for db_exclude in ${db_names_exclusions} ; do
print_debug "Excluding '${db_exclude}' from ALL DB_NAME backups"
db_names=$(echo "$db_names" | sed "/${db_exclude}/d" )
done
fi
else
db_names=$(echo "${DB_NAME}" | tr ',' '\n')
fi
print_debug "Databases Found: $(echo ${db_names} | xargs | tr ' ' ',')"
if var_true "${SPLIT_DB}" ; then
for db in ${db_names} ; do
prepare_dbbackup
target=mysql_${db}_${DB_HOST,,}_${now}.sql
compression
pre_dbbackup $db
print_notice "Dumping MySQL/MariaDB database: '${db}' ${compression_string}"
mysqldump --max-allowed-packet=${MYSQL_MAX_ALLOWED_PACKET} -h ${DB_HOST} -P ${DB_PORT} -u${DB_USER} ${single_transaction} ${stored_procedures} ${mysql_tls_args} ${EXTRA_OPTS} --databases $db | $compress_cmd > "${TEMP_LOCATION}"/"${target}"
exit_code=$?
check_exit_code $target
generate_checksum
move_dbbackup
post_dbbackup $db
done
else
print_debug "Not splitting database dumps into their own files"
prepare_dbbackup
target=mysql_all_${DB_HOST,,}_${now}.sql
compression
pre_dbbackup all
print_notice "Dumping all MySQL / MariaDB databases: '$(echo ${db_names} | xargs | tr ' ' ',')' ${compression_string}"
mysqldump --max-allowed-packet=${MYSQL_MAX_ALLOWED_PACKET} -h ${DB_HOST} -P ${DB_PORT} -u${DB_USER} ${single_transaction} ${stored_procedures} ${mysql_tls_args} ${EXTRA_OPTS} --databases $(echo ${db_names} | xargs) | $compress_cmd > "${TEMP_LOCATION}"/"${target}"
exit_code=$?
check_exit_code $target
generate_checksum
move_dbbackup
post_dbbackup all
fi
}
backup_pgsql() {
export PGPASSWORD=${DB_PASS}
authdb=${DB_USER}
if [ "${DB_NAME,,}" = "all" ] ; then
print_debug "Preparing to back up all databases"
db_names=$(psql -h ${DB_HOST} -U ${DB_USER} -p ${DB_PORT} -d ${authdb} -c 'COPY (SELECT datname FROM pg_database WHERE datistemplate = false) TO STDOUT;' )
if [ -n "${DB_NAME_EXCLUDE}" ] ; then
db_names_exclusions=$(echo "${DB_NAME_EXCLUDE}" | tr ',' '\n')
for db_exclude in ${db_names_exclusions} ; do
print_debug "Excluding '${db_exclude}' from ALL DB_NAME backups"
db_names=$(echo "$db_names" | sed "/${db_exclude}/d" )
done
fi
else
db_names=$(echo "${DB_NAME}" | tr ',' '\n')
fi
print_debug "Databases Found: $(echo ${db_names} | xargs | tr ' ' ',')"
if var_true "${SPLIT_DB}" ; then
for db in ${db_names} ; do
prepare_dbbackup
target=pgsql_${db}_${DB_HOST,,}_${now}.sql
compression
pre_dbbackup $db
print_notice "Dumping PostgresSQL database: '${db}' ${compression_string}"
pg_dump -h ${DB_HOST} -p ${DB_PORT} -U ${DB_USER} $db ${EXTRA_OPTS} | $compress_cmd > ${TEMP_LOCATION}/${target}
exit_code=$?
check_exit_code $target
generate_checksum
move_dbbackup
post_dbbackup $db
done
else
print_debug "Not splitting database dumps into their own files"
prepare_dbbackup
target=pgsql_all_${DB_HOST,,}_${now}.sql
compression
pre_dbbackup all
print_notice "Dumping all PostgreSQL databases: '$(echo ${db_names} | xargs | tr ' ' ',')' ${compression_string}"
tmp_db_names=$(psql -h ${DB_HOST} -U ${DB_USER} -p ${DB_PORT} -d ${authdb} -c 'COPY (SELECT datname FROM pg_database WHERE datistemplate = false) TO STDOUT;' )
for r_db_name in $(echo $db_names | xargs); do
tmp_db_names=$(echo "$tmp_db_names" | xargs | sed "s|${r_db_name}||g" )
done
sleep 5
for x_db_name in ${tmp_db_names} ; do
pgexclude_arg=$(echo ${pgexclude_arg} --exclude-database=${x_db_name})
done
pg_dumpall -h ${DB_HOST} -U ${DB_USER} -p ${DB_PORT} ${pgexclude_arg} ${EXTRA_OPTS} | $compress_cmd > ${TEMP_LOCATION}/${target}
exit_code=$?
check_exit_code $target
generate_checksum
move_dbbackup
post_dbbackup all
fi
}
backup_redis() {
prepare_dbbackup
print_notice "Dumping Redis - Flushing Redis Cache First"
target=redis_all_${DB_HOST,,}_${now}.rdb
echo bgsave | silent redis-cli -h ${DB_HOST} -p ${DB_PORT} ${REDIS_PASS_STR} --rdb ${TEMP_LOCATION}/${target} ${EXTRA_OPTS}
sleep 10
try=5
while [ $try -gt 0 ] ; do
saved=$(echo 'info Persistence' | redis-cli -h ${DB_HOST} -p ${DB_PORT} ${REDIS_PASS_STR} | awk '/rdb_bgsave_in_progress:0/{print "saved"}')
ok=$(echo 'info Persistence' | redis-cli -h ${DB_HOST} -p ${DB_PORT} ${REDIS_PASS_STR} | awk '/rdb_last_bgsave_status:ok/{print "ok"}')
if [[ "$saved" = "saved" ]] && [[ "$ok" = "ok" ]]; then
print_notice "Redis Backup Complete"
exit_code=0
break
fi
try=$((try - 1))
print_warn "Redis Busy - Waiting and retrying in 5 seconds"
sleep 5
done
target_original=${target}
compression
pre_dbbackup all
$compress_cmd "${TEMP_LOCATION}/${target_original}"
check_exit_code $target
generate_checksum
move_dbbackup
post_dbbackup all
}
backup_sqlite3() {
prepare_dbbackup
db=$(basename "${DB_HOST}")
db="${db%.*}"
target=sqlite3_${db}_${now}.sqlite3
compression
pre_dbbackup $db
print_notice "Dumping sqlite3 database: '${DB_HOST}' ${compression_string}"
silent sqlite3 "${DB_HOST}" ".backup '${TEMP_LOCATION}/backup.sqlite3'"
exit_code=$?
check_exit_code $target
cat "${TEMP_LOCATION}"/backup.sqlite3 | ${dir_compress_cmd} > "${TEMP_LOCATION}/${target}"
generate_checksum
move_dbbackup
post_dbbackup $db
}
check_availability() {
### Set the Database Type
if var_false "${SKIP_AVAILABILITY_CHECK}" ; then
case "$dbtype" in
"couch" )
counter=0
code_received=0
while [ "${code_received}" != "200" ]; do
code_received=$(curl -XGET -sSL -o /dev/null -L -w ''%{http_code}'' ${DB_HOST}:${DB_PORT})
if [ "${code_received}" = "200" ] ; then break ; fi
sleep 5
(( counter+=5 ))
print_warn "CouchDB Host '${DB_HOST}' is not accessible, retrying.. ($counter seconds so far)"
done
;;
"influx" )
counter=0
case "${INFLUX_VERSION,,}" in
1 )
while ! (nc -z ${DB_HOST#*//} ${DB_PORT}) ; do
sleep 5
(( counter+=5 ))
print_warn "InfluxDB Host '${DB_HOST#*//}' is not accessible, retrying.. ($counter seconds so far)"
done
;;
2 )
code_received=0
while [ "${code_received}" != "200" ]; do
code_received=$(curl -XGET -sSL -o /dev/null -w ''%{http_code}'' ${DB_HOST}:${DB_PORT}/health)
if [ "${code_received}" = "200" ] ; then break ; fi
sleep 5
(( counter+=5 ))
print_warn "InfluxDB Host '${DB_HOST}' is not accessible, retrying.. ($counter seconds so far)"
done
;;
esac
;;
"mongo" )
if [ -n "${MONGO_CUSTOM_URI}" ] ; then
print_debug "Skipping Connectivity Check"
else
counter=0
while ! (nc -z ${DB_HOST} ${DB_PORT}) ; do
sleep 5
(( counter+=5 ))
print_warn "Mongo Host '${DB_HOST}' is not accessible, retrying.. ($counter seconds so far)"
done
fi
;;
"mysql" )
counter=0
export MYSQL_PWD=${DB_PASS}
while ! (mysqladmin -u"${DB_USER}" -P"${DB_PORT}" -h"${DB_HOST}" ${mysql_tls_args} ${EXTRA_OPTS} status > /dev/null 2>&1) ; do
sleep 5
(( counter+=5 ))
print_warn "MySQL/MariaDB Server '${DB_HOST}' is not accessible, retrying.. (${counter} seconds so far)"
done
;;
"mssql" )
counter=0
while ! (nc -z ${DB_HOST} ${DB_PORT}) ; do
sleep 5
(( counter+=5 ))
print_warn "MSSQL Host '${DB_HOST}' is not accessible, retrying.. ($counter seconds so far)"
done
;;
"pgsql" )
counter=0
export PGPASSWORD=${DB_PASS}
until pg_isready --dbname=${DB_NAME} --host=${DB_HOST} --port=${DB_PORT} --username=${DB_USER} -q
do
sleep 5
(( counter+=5 ))
print_warn "Postgres Host '${DB_HOST}' is not accessible, retrying.. ($counter seconds so far)"
done
;;
"redis" )
counter=0
while ! (nc -z "${DB_HOST}" "${DB_PORT}") ; do
sleep 5
(( counter+=5 ))
print_warn "Redis Host '${DB_HOST}' is not accessible, retrying.. ($counter seconds so far)"
done
;;
"sqlite3" )
if [[ ! -e "${DB_HOST}" ]]; then
print_error "File '${DB_HOST}' does not exist."
exit_code=2
exit $exit_code
elif [[ ! -f "${DB_HOST}" ]]; then
print_error "File '${DB_HOST}' is not a file."
exit_code=2
exit $exit_code
elif [[ ! -r "${DB_HOST}" ]]; then
print_error "File '${DB_HOST}' is not readable."
exit_code=2
exit $exit_code
fi
;;
esac
fi
}
check_exit_code() {
print_debug "DB Backup Exit Code is ${exit_code}"
case "${exit_code}" in
0 )
print_info "DB Backup of '${1}' completed successfully"
;;
* )
print_error "DB Backup of '${1}' reported errors"
master_exit_code=1
;;
esac
}
cleanup_old_data() {
if [ -n "${DB_CLEANUP_TIME}" ]; then
if [ "${master_exit_code}" != 1 ]; then
case "${BACKUP_LOCATION,,}" in
"blobxfer" )
print_info "Cleaning up old backups on filesystem"
mkdir -p "${DB_DUMP_TARGET}"
find "${DB_DUMP_TARGET}"/ -mmin +"${DB_CLEANUP_TIME}" -iname "*" -exec rm {} \;
print_info "Syncing changes via blobxfer"
silent blobxfer upload --mode file --remote-path ${BLOBXFER_REMOTE_PATH} --local-path ${DB_DUMP_TARGET} --delete --delete-only
;;
"file" | "filesystem" )
print_info "Cleaning up old backups on filesystem"
mkdir -p "${DB_DUMP_TARGET}"
find "${DB_DUMP_TARGET}"/ -mmin +"${DB_CLEANUP_TIME}" -iname "*" -exec rm {} \;
;;
"s3" | "minio" )
print_info "Cleaning up old backups on S3 storage"
aws ${PARAM_AWS_ENDPOINT_URL} s3 ls s3://${S3_BUCKET}/${S3_PATH}/ ${s3_ssl} ${s3_ca_cert} ${S3_EXTRA_OPTS} | grep " DIR " -v | grep " PRE " -v | while read -r s3_file; do
s3_createdate=$(echo $s3_file | awk {'print $1" "$2'})
s3_createdate=$(date -d "$s3_createdate" "+%s")
s3_olderthan=$(echo $(( $(date +%s)-${DB_CLEANUP_TIME}*60 )))
if [[ $s3_createdate -le $s3_olderthan ]] ; then
s3_filename=$(echo $s3_file | awk {'print $4'})
if [ "$s3_filename" != "" ] ; then
print_debug "Deleting $s3_filename"
aws ${PARAM_AWS_ENDPOINT_URL} s3 rm s3://${S3_BUCKET}/${S3_PATH}/${s3_filename} ${s3_ssl} ${s3_ca_cert} ${S3_EXTRA_OPTS}
fi
fi
done
;;
esac
else
print_error "Skipping Cleaning up old backups because there were errors in backing up"
fi
fi
}
compression() {
if var_false "${ENABLE_PARALLEL_COMPRESSION}" ; then
PARALLEL_COMPRESSION_THREADS=1
fi
case "${COMPRESSION,,}" in
gz* )
if var_true "${GZ_RSYNCABLE}" ; then
gz_rsyncable=--rsyncable
fi
compress_cmd="pigz -q -${COMPRESSION_LEVEL} -p ${PARALLEL_COMPRESSION_THREADS} ${gz_rsyncable}"
compression_type="gzip"
extension=".gz"
dir_compress_cmd=${compress_cmd}
target_dir=${target}
target=${target}.gz
;;
bz* )
compress_cmd="pbzip2 -q -${COMPRESSION_LEVEL} -p${PARALLEL_COMPRESSION_THREADS} "
compression_type="bzip2"
dir_compress_cmd=${compress_cmd}
extension=".bz2"
target_dir=${target}
target=${target}.bz2
;;
xz* )
compress_cmd="pixz -${COMPRESSION_LEVEL} -p ${PARALLEL_COMPRESSION_THREADS} "
compression_type="xzip"
dir_compress_cmd=${compress_cmd}
extension=".xz"
target_dir=${target}
target=${target}.xz
;;
zst* )
compress_cmd="zstd -q -q --rm -${COMPRESSION_LEVEL} -T${PARALLEL_COMPRESSION_THREADS} "
compression_type="zstd"
dir_compress_cmd=${compress_cmd}
extension=".zst"
target_dir=${target}
target=${target}.zst
;;
"none" | "false")
compress_cmd="cat "
compression_type="none"
dir_compress_cmd="cat "
target_dir=${target}
;;
esac
case "${CONTAINER_LOG_LEVEL,,}" in
"debug" )
if [ "${compression_type}" = "none" ] ; then
compression_string="with '${PARALLEL_COMPRESSION_THREADS}' threads"
else
compression_string="and compressing with '${compression_type}:${COMPRESSION_LEVEL}' with '${PARALLEL_COMPRESSION_THREADS}' threads"
fi
;;
* )
if [ "${compression_type}" != "none" ] ; then
compression_string="and compressing with '${compression_type}'"
fi
;;
esac
}
create_archive() {
if [ "${exit_code}" = "0" ] ; then
print_notice "Creating archive file of '${target_dir}' with tar ${compression_string}"
tar cf - "${TEMP_LOCATION}"/"${target_dir}" | $dir_compress_cmd > "${TEMP_LOCATION}"/"${target_dir}".tar"${extension}"
else
print_error "Skipping creating archive file because backup did not complete successfully"
fi
}
generate_checksum() {
if var_true "${ENABLE_CHECKSUM}" ; then
if [ "${exit_code}" = "0" ] ; then
case "${CHECKSUM,,}" in
"md5" )
checksum_command="md5sum"
checksum_extension="md5"
;;
"sha1" )
checksum_command="sha1sum"
checksum_extension="sha1"
;;
esac
print_notice "Generating ${checksum_extension^^} for '${target}'"
cd "${TEMP_LOCATION}"
${checksum_command} "${target}" > "${target}"."${checksum_extension}"
checksum_value=$(${checksum_command} "${target}" | awk ' { print $1}')
print_debug "${checksum_extension^^}: ${checksum_value} - ${target}"
else
print_error "Skipping Checksum creation because backup did not complete successfully"
fi
fi
}
move_dbbackup() {
if [ "${exit_code}" = "0" ] ; then
dbbackup_size="$(stat -c%s "${TEMP_LOCATION}"/"${target}")"
dbbackup_date="$(date -r "${TEMP_LOCATION}"/"${target}" +'%s')"
case "${SIZE_VALUE,,}" in
"b" | "bytes" )
SIZE_VALUE=1
;;
"[kK]" | "[kK][bB]" | "kilobytes" | "[mM]" | "[mM][bB]" | "megabytes" )
SIZE_VALUE="-h"
;;
*)
SIZE_VALUE=1
;;
esac
if [ "$SIZE_VALUE" = "1" ] ; then
filesize=$(stat -c%s "${TEMP_LOCATION}"/"${target}")
print_notice "Backup of ${target} created with the size of ${filesize} bytes"
else
filesize=$(du -h "${TEMP_LOCATION}"/"${target}" | awk '{ print $1}')
print_notice "Backup of ${target} created with the size of ${filesize}"
fi
case "${BACKUP_LOCATION,,}" in
"file" | "filesystem" )
print_debug "Moving backup to filesystem"
mkdir -p "${DB_DUMP_TARGET}"
mv "${TEMP_LOCATION}"/*."${checksum_extension}" "${DB_DUMP_TARGET}"/
mv "${TEMP_LOCATION}"/"${target}" "${DB_DUMP_TARGET}"/"${target}"
;;
"s3" | "minio" )
print_debug "Moving backup to S3 Bucket"
if [ -n "${S3_KEY_ID}" ] && [ -n "${S3_KEY_SECRET}" ]; then
export AWS_ACCESS_KEY_ID=${S3_KEY_ID}
export AWS_SECRET_ACCESS_KEY=${S3_KEY_SECRET}
else
print_debug "Variable S3_KEY_ID or S3_KEY_SECRET is not set. Please ensure sufficiant IAM role is assigned."
fi
export AWS_DEFAULT_REGION=${S3_REGION}
if [ -f "${S3_CERT_CA_FILE}" ] ; then
print_debug "Using Custom CA for S3 Backups"
s3_ca_cert="--ca-bundle ${S3_CERT_CA_FILE}"
fi
if var_true "${S3_CERT_SKIP_VERIFY}" ; then
print_debug "Skipping SSL verification for HTTPS S3 Hosts"
s3_ssl="--no-verify-ssl"
fi
[[ ( -n "${S3_HOST}" ) ]] && PARAM_AWS_ENDPOINT_URL=" --endpoint-url ${S3_PROTOCOL}://${S3_HOST}"
silent aws ${PARAM_AWS_ENDPOINT_URL} s3 cp ${TEMP_LOCATION}/${target} s3://${S3_BUCKET}/${S3_PATH}/${target} ${s3_ssl} ${s3_ca_cert} ${S3_EXTRA_OPTS}
if var_true "${ENABLE_CHECKSUM}" ; then
silent aws ${PARAM_AWS_ENDPOINT_URL} s3 cp ${TEMP_LOCATION}/*.${checksum_extension} s3://${S3_BUCKET}/${S3_PATH}/ ${s3_ssl} ${s3_ca_cert} ${S3_EXTRA_OPTS}
fi
rm -rf "${TEMP_LOCATION}"/*."${checksum_extension}"
rm -rf "${TEMP_LOCATION}"/"${target}"
;;
"blobxfer" )
print_info "Moving backup to S3 Bucket with blobxfer"
mkdir -p "${DB_DUMP_TARGET}"
mv "${TEMP_LOCATION}"/*."${checksum_extension}" "${DB_DUMP_TARGET}"/
mv "${TEMP_LOCATION}"/"${target}" "${DB_DUMP_TARGET}"/"${target}"
silent blobxfer upload --mode file --remote-path ${BLOBXFER_REMOTE_PATH} --local-path ${DB_DUMP_TARGET}
rm -rf "${TEMP_LOCATION}"/*."${checksum_extension}"
rm -rf "${TEMP_LOCATION}"/"${target}"
;;
esac
else
print_error "Skipping moving DB Backup to final location because backup did not complete successfully"
fi
rm -rf "${TEMP_LOCATION}"/*
}
prepare_dbbackup() {
dbbackup_start_time=$(date +"%s")
now=$(date +"%Y%m%d-%H%M%S")
now_time=$(date +"%H:%M:%S")
now_date=$(date +"%Y-%m-%d")
target=${dbtype}_${DB_NAME,,}_${DB_HOST,,}_${now}.sql
}
pre_dbbackup() {
### Pre Script Support
if [ -n "${PRE_SCRIPT}" ] ; then
if var_true "${PRE_SCRIPT_SKIP_X_VERIFY}" ; then
eval "${PRE_SCRIPT}" "${dbtype}" "${DB_HOST}" "${1}" "${dbbackup_start_time}" "${target}"
else
if [ -x "${PRE_SCRIPT}" ] ; then
print_notice "Found PRE_SCRIPT environment variable. Executing '${PRE_SCRIPT}"
eval "${PRE_SCRIPT}" "${dbtype}" "${DB_HOST}" "${1}" "${dbbackup_start_time}" "${target}"
else
print_error "Can't execute PRE_SCRIPT environment variable '${PRE_SCRIPT}' as its filesystem bit is not executible!"
fi
fi
fi
### Pre Backup Custom Script Support
if [ -d "/assets/custom-scripts/pre" ] && dir_notempty "/assets/custom-scripts/pre" ; then
print_warning "Found Custom Post Scripts in /assets/custom-scripts/pre - Automatically moving them to '${SCRIPT_LOCATION_PRE}'"
mkdir -p "${SCRIPT_LOCATION_PRE}"
silent cp /assets/custom-scripts/pre/* "${SCRIPT_LOCATION_PRE}"
fi
if [ -d "${SCRIPT_LOCATION_PRE}" ] && dir_notempty "${SCRIPT_LOCATION_PRE}" ; then
for f in $(find ${SCRIPT_LOCATION_PRE} -name \*.sh -type f); do
if var_true "${PRE_SCRIPT_SKIP_X_VERIFY}" ; then
${f} "${dbtype}" "${DB_HOST}" "${1}" "${dbbackup_start_time}" "${target}"
else
if [ -x "${f}" ] ; then
print_notice "Executing pre backup custom script : '${f}'"
## script DB_TYPE DB_HOST DB_NAME STARTEPOCH BACKUP_FILENAME
${f} "${dbtype}" "${DB_HOST}" "${1}" "${dbbackup_start_time}" "${target}"
else
print_error "Can't run pre backup custom script: '${f}' as its filesystem bit is not executible!"
fi
fi
done
fi
}
post_dbbackup() {
dbbackup_finish_time=$(date +"%s")
dbbackup_total_time=$(echo $((dbbackup_finish_time-dbbackup_start_time)))
if var_true "${CONTAINER_ENABLE_MONITORING}" ; then
print_notice "Sending Backup Statistics to Zabbix"
silent zabbix_sender -c /etc/zabbix/zabbix_agentd.conf -k dbbackup.size -o "${dbbackup_size}"
silent zabbix_sender -c /etc/zabbix/zabbix_agentd.conf -k dbbackup.datetime -o "${dbbackup_date}"
silent zabbix_sender -c /etc/zabbix/zabbix_agentd.conf -k dbbackup.status -o "${exit_code}"
silent zabbix_sender -c /etc/zabbix/zabbix_agentd.conf -k dbbackup.backup_duration -o "$(echo $((dbbackup_finish_time-dbbackup_start_time)))"
if [ "$?" != "0" ] ; then print_error "Error sending statistics, consider disabling with 'CONTAINER_ENABLE_MONITORING=FALSE'" ; fi
fi
### Post Script Support
if [ -n "${POST_SCRIPT}" ] ; then
if var_true "${POST_SCRIPT_SKIP_X_VERIFY}" ; then
eval "${POST_SCRIPT}" "${exit_code}" "${dbtype}" "${DB_HOST}" "${1}" "${dbbackup_start_time}" "${dbbackup_finish_time}" "${dbbackup_total_time}" "${target}" "${filesize}" "${checksum_value}"
else
if [ -x "${POST_SCRIPT}" ] ; then
print_notice "Found POST_SCRIPT environment variable. Executing '${POST_SCRIPT}"
eval "${POST_SCRIPT}" "${exit_code}" "${dbtype}" "${DB_HOST}" "${1}" "${dbbackup_start_time}" "${dbbackup_finish_time}" "${dbbackup_total_time}" "${target}" "${filesize}" "${checksum_value}"
else
print_error "Can't execute POST_SCRIPT environment variable '${POST_SCRIPT}' as its filesystem bit is not executible!"
fi
fi
fi
### Post Backup Custom Script Support
if [ -d "/assets/custom-scripts/" ] && dir_notempty "/assets/custom-scripts" ; then
print_warning "Found Custom Post Scripts in /assets/custom-scripts/ - Automatically moving them to '${SCRIPT_LOCATION_POST}'"
mkdir -p "${SCRIPT_LOCATION_POST}"
silent cp /assets/custom-scripts/* "${SCRIPT_LOCATION_POST}"
fi
if [ -d "${SCRIPT_LOCATION_POST}" ] && dir_notempty "${SCRIPT_LOCATION_POST}" ; then
for f in $(find ${SCRIPT_LOCATION_POST} -name \*.sh -type f); do
if var_true "${POST_SCRIPT_SKIP_X_VERIFY}" ; then
${f} "${exit_code}" "${dbtype}" "${DB_HOST}" "${1}" "${dbbackup_start_time}" "${dbbackup_finish_time}" "${dbbackup_total_time}" "${target}" "${filesize}" "${checksum_value}"
else
if [ -x "${f}" ] ; then
print_notice "Executing post backup custom script : '${f}'"
## script EXIT_CODE DB_TYPE DB_HOST DB_NAME STARTEPOCH FINISHEPOCH DURATIONEPOCH BACKUP_FILENAME FILESIZE CHECKSUMVALUE
${f} "${exit_code}" "${dbtype}" "${DB_HOST}" "${1}" "${dbbackup_start_time}" "${dbbackup_finish_time}" "${dbbackup_total_time}" "${target}" "${filesize}" "${checksum_value}"
else
print_error "Can't run post backup custom script: '${f}' as its filesystem bit is not executible!"
fi
fi
done
fi
print_notice "DB Backup for '${1}' time taken: $(echo ${dbbackup_total_time} | awk '{printf "Hours: %d Minutes: %02d Seconds: %02d", $1/3600, ($1/60)%60, $1%60}')"
unset s3_ssl
unset s3_ca_cert
}
sanity_test() {
sanity_var DB_TYPE "Database Type"
sanity_var DB_HOST "Database Host"
case "${DB_TYPE,,}" in
"mysql" | "mariadb" )
sanity_var DB_NAME "Database Name to backup. Multiple seperated by commas"
;;
postgres* | "pgsql" )
sanity_var DB_NAME "Database Name to backup. Multiple seperated by commas"
;;
esac
if [ "${BACKUP_LOCATION,,}" = "s3" ] || [ "${BACKUP_LOCATION,,}" = "minio" ] && [ -n "${S3_KEY_ID}" ] && [ -n "${S3_KEY_SECRET}" ]; then
sanity_var S3_BUCKET "S3 Bucket"
sanity_var S3_PATH "S3 Path"
sanity_var S3_REGION "S3 Region"
file_env 'S3_KEY_ID'
file_env 'S3_KEY_SECRET'
fi
}
setup_mode() {
if [ "${MODE,,}" = "auto" ] || [ ${MODE,,} = "default" ] ; then
print_debug "Running in Auto / Default Mode - Letting Image control scheduling"
else
print_info "Running in Manual mode - Execute 'backup_now' or '/etc/services.available/10-db-backup/run' to perform a manual backup"
service_stop 10-db-backup
if var_true "${MANUAL_RUN_FOREVER}" ; then
mkdir -p /etc/services.d/99-run_forever
cat <<EOF > /etc/services.d/99-run_forever/run
#!/bin/bash
while true
do
sleep 86400
done
EOF
chmod +x /etc/services.d/99-run_forever/run
else
if var_true "${CONTAINER_ENABLE_SCHEDULING}" ; then
print_error "Manual / Exit after execution mode doesn't work with 'CONTAINER_ENABLE_SCHEDULING=TRUE'"
exit 1
fi
if var_true "${CONTAINER_ENABLE_MONITORING}" ; then
print_error "Manual / Exit after execution mode doesn't work with 'CONTAINER_ENABLE_MONITORING=TRUE'"
exit 1
fi
if var_true "${CONTAINER_ENABLE_LOGSHIPPING}" ; then
print_error "Manual / Exit after execution mode doesn't work with 'CONTAINER_ENABLE_LOGSHIPPING=TRUE'"
exit 1
fi
fi
fi
}