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- Add mysql_backup.sh: mysqldump to backup.sql.gz with proper restore hook (old --tab backup had no restore hook → restored backup silently lost DB data) - Update db backupbot labels: pre-hook → /mysql_backup.sh backup, restore.post-hook → /mysql_backup.sh restore - Fix app healthcheck start_period 1m → 15m (Ghost fresh-DB migration takes ~6-9min on slow hosts; old 1m caused migration lock deadlocks on deploy) - Fix db healthcheck start_period 1m → 15m (InnoDB init on fresh data dir ~6-10min) - Add MYSQL_BACKUP_VERSION=v1 to abra.sh
29 lines
1.1 KiB
Bash
Executable File
29 lines
1.1 KiB
Bash
Executable File
#!/bin/bash
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# MySQL backup/restore hook for the `db` service. Invoked by backupbot-two via:
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# backupbot.backup.pre-hook = "/mysql_backup.sh backup"
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# backupbot.backup.path = "/var/lib/mysql/backup.sql.gz"
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# backupbot.restore.post-hook = "/mysql_backup.sh restore"
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# Backup dumps the `ghost` DB to a single gzipped file inside the mysql data volume; backupbot
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# archives it. Restore reimports it. The previous recipe shipped a `mysqldump --tab` backup with NO
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# restore hook (and the mysql data volume itself was not backed up), so a restored backup silently
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# kept the live, un-restored DB state — data loss on restore.
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set -e
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BACKUP_FILE="/var/lib/mysql/backup.sql.gz"
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export MYSQL_PWD="$(cat "${MYSQL_ROOT_PASSWORD_FILE:-/run/secrets/db_password}")"
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DB_NAME="ghost"
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function backup {
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mysqldump -u root --single-transaction --routines --triggers --databases "$DB_NAME" | gzip > "$BACKUP_FILE"
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}
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function restore {
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# --databases dump carries CREATE DATABASE/USE + per-table DROP+CREATE (mysqldump default), so the
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# reimport deterministically rebuilds every table from the archived dump.
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gunzip -c "$BACKUP_FILE" | mysql -u root
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}
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$@
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