offen/docker-volume-backup
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make log output more consistent

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This commit is contained in:
Frederik Ring 2021-04-03 09:33:11 +02:00
parent 17a3523ded
commit 204a0862c6
3 changed files with 16 additions and 15 deletions
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2
README.md
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@ -28,7 +28,7 @@ AWS_SECRET_ACCESS_KEY="<xxx>"
AWS_S3_BUCKET_NAME="<xxx>"
# This is the FQDN of your storage server, e.g. `storage.example.com`.
# You can leave it blank when working against AWS S3.
# Do not set this when working against AWS S3.
# AWS_ENDPOINT="<xxx>"
########### BACKUP PRUNING

25
src/backup.sh
View File

@ -12,7 +12,7 @@ function info {
echo -e "\n[INFO] $1\n"
}
info "Backup starting"
info "Preparing backup"
DOCKER_SOCK="/var/run/docker.sock"
if [ -S "$DOCKER_SOCK" ]; then
@ -25,12 +25,12 @@ if [ -S "$DOCKER_SOCK" ]; then
CONTAINERS_TO_STOP_TOTAL="$(cat $TEMPFILE | wc -l)"
CONTAINERS_TOTAL="$(docker ps --format "{{.ID}}" | wc -l)"
rm "$TEMPFILE"
echo "$CONTAINERS_TOTAL containers running on host in total"
echo "$CONTAINERS_TO_STOP_TOTAL containers marked to be stopped during backup"
echo "$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"
echo "Cannot access \"$DOCKER_SOCK\", won't look for containers to stop."
fi
if [ "$CONTAINERS_TO_STOP_TOTAL" != "0" ]; then
@ -57,9 +57,9 @@ fi
if [ ! -z "$AWS_S3_BUCKET_NAME" ]; then
info "Uploading backup to remote storage"
echo "Will upload to bucket \"$AWS_S3_BUCKET_NAME\""
echo "Will upload to bucket \"$AWS_S3_BUCKET_NAME\"."
mc cp "$BACKUP_FILENAME" "backup-target/$AWS_S3_BUCKET_NAME"
echo "Upload finished"
echo "Upload finished."
fi
if [ -f "$BACKUP_FILENAME" ]; then
@ -68,7 +68,7 @@ if [ -f "$BACKUP_FILENAME" ]; then
fi
info "Backup finished"
echo "Will wait for next scheduled backup"
echo "Will wait for next scheduled backup."
if [ ! -z "$BACKUP_RETENTION_DAYS" ]; then
info "Pruning old backups"
@ -76,18 +76,19 @@ if [ ! -z "$BACKUP_RETENTION_DAYS" ]; then
rule_applies_to=$(mc rm --fake --recursive -force --older-than "${BACKUP_RETENTION_DAYS}d" "backup-target/$bucket" | wc -l)
if [ "$rule_applies_to" == "0" ]; then
echo "No backups found that match the configured retention period. Doing nothing."
echo "No backups found older than the configured retention period of $BACKUP_RETENTION_DAYS days."
echo "Doing nothing."
exit 0
fi
available=$(mc ls "backup-target/$bucket" | wc -l)
total=$(mc ls "backup-target/$bucket" | wc -l)
if [ "$rule_applies_to" == "$available" ]; then
echo "Using a retention of $BACKUP_RETENTION_DAYS days would prune all currently existing backups, will not continue."
if [ "$rule_applies_to" == "$total" ]; then
echo "Using a retention of ${BACKUP_RETENTION_DAYS} days would prune all currently existing backups, will not continue."
echo "If this is what you want, please remove files manually instead of using this script."
exit 1
fi
mc rm --recursive -force --older-than "${BACKUP_RETENTION_DAYS}d" "backup-target/$bucket"
echo "Successfully pruned all backups older than ${BACKUP_RETENTION_DAYS} days"
echo "Successfully pruned ${rule_applies_to} backups older than ${BACKUP_RETENTION_DAYS} days."
fi

4
src/entrypoint.sh
View File

@ -27,9 +27,9 @@ source env.sh
mc alias set backup-target "https://$AWS_ENDPOINT" "$AWS_ACCESS_KEY_ID" "$AWS_SECRET_ACCESS_KEY"
# Add our cron entry, and direct stdout & stderr to Docker commands stdout
echo "Installing cron.d entry with expression $BACKUP_CRON_EXPRESSION"
echo "Installing cron.d entry with expression $BACKUP_CRON_EXPRESSION."
echo "$BACKUP_CRON_EXPRESSION backup 2>&1" | crontab -
# Let cron take the wheel
echo "Starting cron in foreground"
echo "Starting cron in foreground."
crond -f -l 8