mariadb: Remove unused replica backup script

Kolla Ansible no longer uses the replica-specific backup script after
backups were changed to run against the local database instance.

Remove kolla_mariadb_backup_replica.sh and stop installing it in the
MariaDB server image.

Depends-On: https://review.opendev.org/c/openstack/kolla-ansible/+/1002239
Change-Id: I666986e67940a2e8c2d567a8a6de4befca5ea4d2
Signed-off-by: minwooseo <alsdn1211@naver.com>

2 files changed, 0 insertions, 151 deletions

diff --git a/kolla/docker/mariadb-server/Dockerfile.j2 b/kolla/docker/mariadb-server/Dockerfile.j2
index a9a84bf73..436953e80 100644
--- a/kolla/docker/mariadb-server/Dockerfile.j2
+++ b/kolla/docker/mariadb-server/Dockerfile.j2
@@ -54,12 +54,10 @@ COPY mariadb_sudoers /etc/sudoers.d/kolla_mariadb_sudoers
 COPY extend_start.sh /usr/local/bin/kolla_extend_start
 COPY security_reset.expect /usr/local/bin/kolla_security_reset
 COPY backup.sh /usr/local/bin/kolla_mariadb_backup.sh
-COPY backup_replica.sh /usr/local/bin/kolla_mariadb_backup_replica.sh
 
 RUN chmod 644 /usr/local/bin/kolla_extend_start \
     && chmod 755 /usr/local/bin/kolla_security_reset \
                  /usr/local/bin/kolla_mariadb_backup.sh \
-                 /usr/local/bin/kolla_mariadb_backup_replica.sh \
     && chmod 750 /etc/sudoers.d \
     && chmod 440 /etc/sudoers.d/kolla_mariadb_sudoers \
     && rm -rf /var/lib/mysql/*
diff --git a/kolla/docker/mariadb-server/backup_replica.sh b/kolla/docker/mariadb-server/backup_replica.sh
deleted file mode 100644
index fe10bc61b..000000000
--- a/kolla/docker/mariadb-server/backup_replica.sh
+++ /dev/null
@@ -1,149 +0,0 @@
-#!/usr/bin/env bash
-
-set -eu
-set -o pipefail
-
-BACKUP_DIR=/backup/
-DEFAULT_MY_CNF="/etc/mysql/my.cnf"
-REPLICA_MY_CNF="$(mktemp)"
-RETRY_INTERVAL=5  # Interval between retries (in seconds)
-MAX_RETRIES=12    # Max retries (12 retries * 5 seconds = 60 seconds)
-VERIFY_DB_SERVER_CERT="${VERIFY_DB_SERVER_CERT:=FALSE}"
-
-# Cleanup function to remove the REPLICA_MY_CNF file
-cleanup() {
-    rm -f "${REPLICA_MY_CNF}"
-}
-
-# Set trap to ensure cleanup occurs on exit or error
-trap cleanup EXIT
-
-cd "${BACKUP_DIR}"
-
-# Execute a full backup
-backup_full() {
-    echo "Taking a full backup"
-    LAST_FULL_DATE=$(date +%d-%m-%Y-%s)
-    BACKUP_FILE="backup-full-${LAST_FULL_DATE}.mbs.gz"
-    BACKUP_PATH="${BACKUP_DIR}/full-${LAST_FULL_DATE}"
-    mkdir -p "${BACKUP_PATH}"
-
-    mariabackup \
-        --defaults-file="${REPLICA_MY_CNF}" \
-        --backup \
-        --stream=mbstream \
-        --history="${LAST_FULL_DATE}" \
-        | gzip > "${BACKUP_PATH}/${BACKUP_FILE}"
-
-    echo "${BACKUP_PATH}/${BACKUP_FILE}" > "${BACKUP_DIR}/last_full_file"
-}
-
-# Execute an incremental backup
-backup_incremental() {
-    if [ ! -r "${BACKUP_DIR}/last_full_file" ]; then
-        echo "Error: No full backup file found."
-        exit 1
-    fi
-
-    FULL_BACKUP_FILE=$(cat "${BACKUP_DIR}/last_full_file")
-    LAST_FULL_DATE=$(basename "$(dirname "${FULL_BACKUP_FILE}")" | sed 's/^full-//')
-    NOW=$(date +%H-%M-%S-%d-%m-%Y)
-    INCR_DIR="${BACKUP_DIR}/incr-${NOW}-since-${LAST_FULL_DATE}"
-    mkdir -p "${INCR_DIR}"
-
-    # Temp dir for full base restore
-    TMP_BASEDIR=$(mktemp -d)
-
-    echo "Decompressing full backup to temp dir: ${TMP_BASEDIR}"
-    gunzip -c "${FULL_BACKUP_FILE}" | mbstream -x -C "${TMP_BASEDIR}"
-
-    mariabackup \
-        --defaults-file="${REPLICA_MY_CNF}" \
-        --backup \
-        --stream=mbstream \
-        --incremental-basedir="${TMP_BASEDIR}" \
-        --history="incr-${NOW}" \
-        | gzip > "${INCR_DIR}/backup-incremental-${NOW}.mbs.gz"
-
-    rm -rf "${TMP_BASEDIR}"
-}
-
-# Retry logic for database queries
-retry_mysql_query() {
-    local query="$1"
-    local result=""
-    local attempt=1
-
-    while [ ${attempt} -le ${MAX_RETRIES} ]; do
-        result=$(mariadb --ssl-verify-server-cert="${VERIFY_DB_SERVER_CERT}" -h "${HOST}" -u "${USER}" -p"${PASS}" -s -N -e "${query}" 2>/dev/null || true)
-        if [ -n "${result}" ]; then
-            echo "${result}"
-            return 0
-        fi
-        echo "Attempt ${attempt}/${MAX_RETRIES} failed. Retrying in ${RETRY_INTERVAL} seconds..."
-        sleep "${RETRY_INTERVAL}"
-        attempt=$((attempt + 1))
-    done
-
-    echo "Error: Failed to execute the query after ${MAX_RETRIES} attempts."
-    return 1
-}
-
-get_and_set_replica_server() {
-    HOST="$(grep '^host' "${DEFAULT_MY_CNF}" | awk -F '=' '{print $2}' | xargs)"
-    USER="$(grep '^user' "${DEFAULT_MY_CNF}" | awk -F '=' '{print $2}' | xargs)"
-    PASS="$(grep '^password' "${DEFAULT_MY_CNF}" | awk -F '=' '{print $2}' | xargs)"
-
-    ALL_HOSTS_SELECT="SELECT REGEXP_REPLACE(VARIABLE_VALUE, ':[0-9]*','') FROM information_schema.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_incoming_addresses';"
-    ALL_HOSTS=$(retry_mysql_query "${ALL_HOSTS_SELECT}")
-    if [ -z "${ALL_HOSTS}" ]; then
-        echo "Backup failed due to inability to fetch a list of servers."
-        exit 1
-    fi
-
-    ACTIVE_HOST_SELECT='SELECT @@hostname;'
-    ACTIVE_HOST=$(retry_mysql_query "${ACTIVE_HOST_SELECT}" | xargs getent hosts | awk '{print $1}')
-    if [ -z "${ACTIVE_HOST}" ]; then
-        echo "Backup failed due to inability to fetch active host."
-        exit 1
-    fi
-
-    # Multinode
-    if echo "${ALL_HOSTS}" | grep -q ','; then
-        for server in $(echo "${ALL_HOSTS}" | tr ',' '\n'); do
-            if [[ "${server}" != "${ACTIVE_HOST}" ]]; then
-                REPLICA_HOST="${server}"
-                break
-            fi
-        done
-    # Single node
-    else
-        REPLICA_HOST="${ALL_HOSTS}"
-    fi
-    if [ -z "${REPLICA_HOST}" ]; then
-        echo "Backup failed due to inability to determine replica host."
-        exit 1
-    fi
-
-    cp "${DEFAULT_MY_CNF}" "${REPLICA_MY_CNF}"
-    sed -i "s/${HOST}/${REPLICA_HOST}/g" "${REPLICA_MY_CNF}"
-}
-
-if [ -n "${BACKUP_TYPE}" ]; then
-    get_and_set_replica_server
-    case "${BACKUP_TYPE}" in
-        "full")
-            backup_full
-            ;;
-        "incremental")
-            backup_incremental
-            ;;
-        *)
-            echo "Only full or incremental options are supported."
-            exit 1
-            ;;
-    esac
-else
-    echo "You need to specify either full or incremental backup options."
-    exit 1
-fi