mirror of
git://f0xx.org/ac/ac-deploy
synced 2026-07-29 03:58:34 +03:00
74 lines
3.7 KiB
Bash
74 lines
3.7 KiB
Bash
#!/bin/sh
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# Bootstrap cast02 or cast03 as GTID replica of cast01.
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set -eu
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set -o pipefail
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SHARED=/shared/cluster
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CREDS="$SHARED/credentials.txt"
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[ -f "$SHARED/cluster.env" ] && . "$SHARED/cluster.env"
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HOST="$(hostname -s)"
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case "$HOST" in
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cast02) SERVER_ID=2 ;;
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cast03) SERVER_ID=3 ;;
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*) echo "run on cast02 or cast03"; exit 1 ;;
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esac
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REPL_PASS="$(awk '/^\[mariadb_replication\]/{f=1;next} /^\[/{f=0} f&&/^password=/{print substr($0,10); exit}' "$CREDS")"
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REPL_USER="$(awk '/^\[mariadb_replication\]/{f=1;next} /^\[/{f=0} f&&/^user=/{print substr($0,6); exit}' "$CREDS")"
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APP_PASS="$(awk '/^\[mariadb_app\]/{f=1;next} /^\[/{f=0} f&&/^password=/{print substr($0,10); exit}' "$CREDS")"
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APP_USER="$(awk '/^\[mariadb_app\]/{f=1;next} /^\[/{f=0} f&&/^user=/{print substr($0,6); exit}' "$CREDS")"
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grep -q '^skip-networking' /etc/my.cnf.d/mariadb-server.cnf && \
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sed -i 's/^skip-networking/#skip-networking/' /etc/my.cnf.d/mariadb-server.cnf
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apk add --no-cache mariadb
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install -D -m 644 "$SHARED/mariadb/replica.cnf" /etc/my.cnf.d/lab-cluster-replica.cnf
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grep -q '^server-id=' /etc/my.cnf.d/lab-cluster-replica.cnf && \
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sed -i "s/^server-id=.*/server-id=${SERVER_ID}/" /etc/my.cnf.d/lab-cluster-replica.cnf || \
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echo "server-id=${SERVER_ID}" >> /etc/my.cnf.d/lab-cluster-replica.cnf
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rc-service mariadb stop 2>/dev/null || true
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rm -rf /var/lib/mysql/*
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/etc/init.d/mariadb setup
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rc-update add mariadb default
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rc-service mariadb restart
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sleep 2
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echo "=== app DB sync from cast01 (skip mysql.* — avoids help_topic dump failures) ==="
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mariadb-dump --skip-ssl -h cast01 -u "${REPL_USER}" -p"${REPL_PASS}" \
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--databases androidcast_crashes url_shortener \
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--single-transaction --gtid --routines --events \
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| mariadb -u root
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GTID_POS="$(mariadb --skip-ssl -h cast01 -u "${REPL_USER}" -p"${REPL_PASS}" -N -e 'SELECT @@gtid_current_pos')"
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[ -n "$GTID_POS" ] || { echo "FAIL: could not read gtid from cast01"; exit 1; }
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mariadb -u root -e "SET GLOBAL gtid_slave_pos='${GTID_POS}'"
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echo "gtid_slave_pos set to: ${GTID_POS}"
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mariadb -u root <<SQL
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CREATE USER IF NOT EXISTS '${APP_USER}'@'10.7.16.%' IDENTIFIED BY '${APP_PASS}';
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CREATE USER IF NOT EXISTS '${APP_USER}'@'localhost' IDENTIFIED BY '${APP_PASS}';
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GRANT ALL PRIVILEGES ON androidcast_crashes.* TO '${APP_USER}'@'10.7.16.%';
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GRANT ALL PRIVILEGES ON androidcast_crashes.* TO '${APP_USER}'@'localhost';
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GRANT ALL PRIVILEGES ON url_shortener.* TO '${APP_USER}'@'10.7.16.%';
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GRANT ALL PRIVILEGES ON url_shortener.* TO '${APP_USER}'@'localhost';
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FLUSH PRIVILEGES;
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CHANGE MASTER TO
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MASTER_HOST='cast01',
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MASTER_USER='${REPL_USER}',
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MASTER_PASSWORD='${REPL_PASS}',
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MASTER_USE_GTID=slave_pos;
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START REPLICA;
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SQL
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sleep 3
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mariadb -u root -e "SHOW REPLICA STATUS\G" | grep -E 'Slave_IO_Running|Slave_SQL_Running|Last_Error|Last_SQL_Error|Seconds_Behind_Master'
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mariadb -u root -e "SELECT table_schema, COUNT(*) AS tables FROM information_schema.tables WHERE table_schema IN ('androidcast_crashes','url_shortener') GROUP BY table_schema;"
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URL_N="$(mariadb -u root -N -e 'SELECT COUNT(*) FROM information_schema.tables WHERE table_schema='"'"'url_shortener'"'"'')"
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CRASH_N="$(mariadb -u root -N -e 'SELECT COUNT(*) FROM information_schema.tables WHERE table_schema='"'"'androidcast_crashes'"'"'')"
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EXP_CRASH="${EXPECTED_CRASHES_TABLES:-16}"
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EXP_URL="${EXPECTED_URL_SHORTENER_TABLES:-4}"
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[ "$CRASH_N" = "$EXP_CRASH" ] && [ "$URL_N" = "$EXP_URL" ] || { echo "FAIL: expected ${EXP_CRASH}+${EXP_URL} tables, got crashes=$CRASH_N url=$URL_N"; exit 1; }
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mariadb -u root -e "SHOW REPLICA STATUS\G" | grep -E 'Slave_SQL_Running: Yes' >/dev/null || { echo "FAIL: SQL thread not running"; mariadb -u root -e "SHOW REPLICA STATUS\G" | grep -E 'Last_SQL_Error'; exit 1; }
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echo "replica_ok $HOST server_id=$SERVER_ID"
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