125 wiersze
3.5 KiB
Bash
Executable File
125 wiersze
3.5 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
# Cronjobs don't inherit their env, so load from file
|
|
source env.sh
|
|
|
|
function info {
|
|
bold="\033[1m"
|
|
reset="\033[0m"
|
|
echo -e "\n$bold[INFO] $1$reset\n"
|
|
}
|
|
|
|
info "Backup starting"
|
|
TIME_START="$(date +%s.%N)"
|
|
DOCKER_SOCK="/var/run/docker.sock"
|
|
if [ -S "$DOCKER_SOCK" ]; then
|
|
TEMPFILE="$(mktemp)"
|
|
docker ps --format "{{.ID}}" --filter "label=docker-volume-backup.stop-during-backup=true" > "$TEMPFILE"
|
|
CONTAINERS_TO_STOP="$(cat $TEMPFILE | tr '\n' ' ')"
|
|
CONTAINERS_TO_STOP_TOTAL="$(cat $TEMPFILE | wc -l)"
|
|
CONTAINERS_TOTAL="$(docker ps --format "{{.ID}}" | wc -l)"
|
|
rm "$TEMPFILE"
|
|
echo "$CONTAINERS_TOTAL containers running on host in total"
|
|
echo "$CONTAINERS_TO_STOP_TOTAL containers marked to be stopped during backup"
|
|
else
|
|
CONTAINERS_TO_STOP_TOTAL="0"
|
|
CONTAINERS_TOTAL="0"
|
|
echo "Cannot access \"$DOCKER_SOCK\", won't look for containers to stop"
|
|
fi
|
|
|
|
if [ "$CONTAINERS_TO_STOP_TOTAL" != "0" ]; then
|
|
info "Stopping containers"
|
|
docker stop $CONTAINERS_TO_STOP
|
|
fi
|
|
|
|
if [ -S "$DOCKER_SOCK" ]; then
|
|
TEMPFILE="$(mktemp)"
|
|
docker ps \
|
|
--filter "label=docker-volume-backup.exec-pre-backup" \
|
|
--format '{{.ID}} {{.Label "docker-volume-backup.exec-pre-backup"}}' \
|
|
> "$TEMPFILE"
|
|
while read line; do
|
|
info "Pre-exec command: $line"
|
|
docker exec $line
|
|
done < "$TEMPFILE"
|
|
rm "$TEMPFILE"
|
|
fi
|
|
|
|
info "Creating backup"
|
|
TIME_BACK_UP="$(date +%s.%N)"
|
|
tar -czvf "$BACKUP_FILENAME" $BACKUP_SOURCES # allow the var to expand, in case we have multiple sources
|
|
BACKUP_SIZE="$(du --bytes $BACKUP_FILENAME | sed 's/\s.*$//')"
|
|
TIME_BACKED_UP="$(date +%s.%N)"
|
|
|
|
if [ -S "$DOCKER_SOCK" ]; then
|
|
TEMPFILE="$(mktemp)"
|
|
docker ps \
|
|
--filter "label=docker-volume-backup.exec-post-backup" \
|
|
--format '{{.ID}} {{.Label "docker-volume-backup.exec-post-backup"}}' \
|
|
> "$TEMPFILE"
|
|
while read line; do
|
|
info "Post-exec command: $line"
|
|
docker exec $line
|
|
done < "$TEMPFILE"
|
|
rm "$TEMPFILE"
|
|
fi
|
|
|
|
if [ "$CONTAINERS_TO_STOP_TOTAL" != "0" ]; then
|
|
info "Starting containers back up"
|
|
docker start $CONTAINERS_TO_STOP
|
|
fi
|
|
|
|
info "Waiting before processing"
|
|
echo "Sleeping $BACKUP_WAIT_SECONDS seconds..."
|
|
sleep "$BACKUP_WAIT_SECONDS"
|
|
|
|
TIME_UPLOAD="0"
|
|
TIME_UPLOADED="0"
|
|
if [ ! -z "$AWS_S3_BUCKET_NAME" ]; then
|
|
info "Uploading backup to S3"
|
|
echo "Will upload to bucket \"$AWS_S3_BUCKET_NAME\""
|
|
TIME_UPLOAD="$(date +%s.%N)"
|
|
aws s3 cp --only-show-errors "$BACKUP_FILENAME" "s3://$AWS_S3_BUCKET_NAME/"
|
|
echo "Upload finished"
|
|
TIME_UPLOADED="$(date +%s.%N)"
|
|
fi
|
|
|
|
if [ -d "$BACKUP_ARCHIVE" ]; then
|
|
info "Archiving backup"
|
|
mv -v "$BACKUP_FILENAME" "$BACKUP_ARCHIVE/$BACKUP_FILENAME"
|
|
fi
|
|
|
|
if [ -f "$BACKUP_FILENAME" ]; then
|
|
info "Cleaning up"
|
|
rm -vf "$BACKUP_FILENAME"
|
|
fi
|
|
|
|
info "Collecting metrics"
|
|
TIME_FINISH="$(date +%s.%N)"
|
|
INFLUX_LINE="$INFLUXDB_MEASUREMENT\
|
|
,host=$BACKUP_HOSTNAME\
|
|
\
|
|
size_compressed_bytes=$BACKUP_SIZE\
|
|
,containers_total=$CONTAINERS_TOTAL\
|
|
,containers_stopped=$CONTAINERS_TO_STOP_TOTAL\
|
|
,time_wall=$(perl -E "say $TIME_FINISH - $TIME_START")\
|
|
,time_total=$(perl -E "say $TIME_FINISH - $TIME_START - $BACKUP_WAIT_SECONDS")\
|
|
,time_compress=$(perl -E "say $TIME_BACKED_UP - $TIME_BACK_UP")\
|
|
,time_upload=$(perl -E "say $TIME_UPLOADED - $TIME_UPLOAD")\
|
|
"
|
|
echo "$INFLUX_LINE" | sed 's/ /,/g' | tr , '\n'
|
|
|
|
if [ ! -z "$INFLUXDB_URL" ]; then
|
|
info "Shipping metrics"
|
|
curl \
|
|
--silent \
|
|
--include \
|
|
--request POST \
|
|
--user "$INFLUXDB_CREDENTIALS" \
|
|
"$INFLUXDB_URL/write?db=$INFLUXDB_DB" \
|
|
--data-binary "$INFLUX_LINE"
|
|
fi
|
|
|
|
info "Backup finished"
|
|
echo "Will wait for next scheduled backup"
|