diff --git a/mysql/ADD/ccmd b/mysql/ADD/ccmd
index 60de37e..0c29661 100755
--- a/mysql/ADD/ccmd
+++ b/mysql/ADD/ccmd
@@ -1,12 +1,6 @@
 #!/bin/bash
 
 ##################################################
-# EVN                                            #
-# - SERVER_ID                                    #
-# - GROUP_REPLICATION                            #
-# - GROUP_REPLICATION_LOCAL_ADDRESS              #
-# - GROUP_REPLICATION_GROUP_SEEDS                #
-# - EXTRA_SCRIPTS                                #
 # Mount file                                     #
 # - /etc/my.cnf                                  #
 # Mount dir                                      #
@@ -27,16 +21,6 @@ BINLOG_DIR='/var/lib/mysql-bin'
 SOCK_FILE='/run/mysqld/mysqld.sock'
 PID_FILE='/run/mysqld/mysqld.pid'
 INIT_FLAG=
-GROUP_REPLICATION="${GROUP_REPLICATION:+1}"
-EXTRA_SCRIPTS="${EXTRA_SCRIPTS:+1}"
-
-if [ -n "$GROUP_REPLICATION" ]; then
-    SERVER_ID=${SERVER_ID:?}
-    GROUP_REPILCATION_GROUP_NAME="${GROUP_REPILCATION_GROUP_NAME:-aaaabbbb-7777-8888-9999-ccccddddeeee}"
-    GROUP_REPLICATION_LOCAL_ADDRESS="${GROUP_REPLICATION_LOCAL_ADDRESS}"
-    GROUP_REPLICATION_GROUP_SEEDS="${GROUP_REPLICATION_GROUP_SEEDS}"
-    BOOTSTRAP_GROUP=1
-fi
 
 function Print {
     local file=/dev/null
@@ -55,25 +39,6 @@ function Quit {
     test -n "$GOT_SIGTERM"
 }
 
-function ProbeSeeds {
-    local all_seeds=" ${GROUP_REPLICATION_GROUP_SEEDS//,/ } "
-    local other_seeds="${all_seeds/ $GROUP_REPLICATION_LOCAL_ADDRESS / }"
-    local seed= seed_return=0
-    [ "$all_seeds" = "$other_seeds" ] \
-        && Print Not found local_address in group_seeds! \
-        && exit 1
-    Print Probing connection to other seeds ...
-    for seed in $other_seeds; do
-        echo -n "Connecting $seed ... "
-        curl -s --connect-timeout 8 ftp://$seed || seed_return=$?
-        [ 6 = "$seed_return" ] && echo failed to resolve host:"${seed%:*}"! && exit 1
-        [ 7 = "$seed_return" ] && echo offline. && continue
-        echo online.
-        BOOTSTRAP_GROUP=
-        break
-    done
-}
-
 function Init {
     rm -f ${SOCK_FILE}* ${PID_FILE}
     chown -R mysql:mysql $LOG_DIR $BINLOG_DIR $DATA_DIR
@@ -85,43 +50,6 @@ function Init {
     fi
 }
 
-function InitGroupReplication {
-    if ! grep -i '^group[-_]replication' /etc/my.cnf; then
-        Print Writing advisable group replication config to /etc/my.cnf ...
-        grep -i '^binlog[-_]expire[-_]logs[-_]seconds' /etc/my.cnf \
-            || echo 'binlog-expire-logs-seconds = 172800' >> /etc/my.cnf
-        echo 'group-replication-consistency = BEFORE_ON_PRIMARY_FAILOVER
-group-replication-member-expel-timeout = 2
-group-replication-unreachable-majority-timeout = 2
-group-replication-autorejoin-tries = 0
-group-replication-exit-state-action = OFFLINE_MODE
-' >> /etc/my.cnf
-    fi
-    if ! grep -i '^group[-_]replication' /etc/mysql/my.cnf; then
-        Print Writing essential group replication config to /etc/mysql/my.cnf ...
-        cat >> /etc/mysql/my.cnf <<-EOF
-server-id = $SERVER_ID
-gtid-mode = ON
-enforce-gtid-consistency = TRUE
-binlog-format = ROW
-binlog-checksum = NONE
-log-bin = /var/lib/mysql-bin/master
-relay-log = /var/lib/mysql-bin/slave
-log-slave-updates = TRUE
-relay-log-recovery = TRUE
-slave-parallel-type = LOGICAL_CLOCK
-slave-preserve-commit-order = ON
-disabled-storage-engines = "MyISAM,BLACKHOLE,FEDERATED,ARCHIVE,MEMORY"
-plugin-load-add = "group_replication.so;mysql_clone.so"
-group-replication-group-name = "$GROUP_REPILCATION_GROUP_NAME"
-group-replication-local-address = "$GROUP_REPLICATION_LOCAL_ADDRESS"
-group-replication-group-seeds = "$GROUP_REPLICATION_GROUP_SEEDS"
-group-replication-bootstrap-group = OFF
-group-replication-start-on-boot = OFF
-EOF
-    fi
-}
-
 function ImportInitSql {
     local sql_file= sql_files=
     mysql -e "CREATE USER docker@localhost IDENTIFIED BY 'China_19\$(10)!'"
@@ -136,45 +64,6 @@ function ImportInitSql {
     fi
 }
 
-function StartGroupReplication {
-    if [ -n "$BOOTSTRAP_GROUP" ]; then
-        Print Bootstraping new group replication ...
-        mysql -e "
-            SET GLOBAL group_replication_bootstrap_group=ON;
-            START GROUP_REPLICATION;
-            SET GLOBAL group_replication_bootstrap_group=OFF;
-        "
-    else
-        Print Joining a running group replication ...
-        mysql -e "START GROUP_REPLICATION;"
-    fi
-}
-
-function CreateGroupReplicationChannel {
-    Print Creating user and channel of group replication ...
-    mysql -e "SET SQL_LOG_BIN=0;
-        CREATE USER rpl@'%' IDENTIFIED BY 'Rpl_1234';
-        GRANT REPLICATION SLAVE ON *.* TO rpl@'%';
-        GRANT BACKUP_ADMIN ON *.* TO rpl@'%';
-        FLUSH PRIVILEGES;
-        SET SQL_LOG_BIN=1;
-        CHANGE MASTER TO 
-            MASTER_USER='rpl', 
-            MASTER_PASSWORD='Rpl_1234' 
-            FOR CHANNEL 'group_replication_recovery';
-    "
-}
-
-function StartExtraScripts {
-    Print Starting extra scripts ...
-    while sleep 2; do
-        for script in $(find $LOG_DIR/extra_scripts/ -type f -executable \
-            2>/dev/null || true); do
-            $script &
-        done
-    done &
-}
-
 function StartProc {
     Print Starting mysql ...
     mysqld -u mysql &
@@ -184,26 +73,13 @@ function StartProc {
         [ ! -e /proc/$! ] && echo && Print unexpected error! && exit
     done
     echo
-    if [ -n "$INIT_FLAG" ]; then
-        ImportInitSql
-        if [ -n "$GROUP_REPLICATION" ]; then
-            CreateGroupReplicationChannel
-        fi
-    fi
-    if [ -n "$GROUP_REPLICATION" ]; then
-        StartGroupReplication
-    fi
-    if [ -n "$EXTRA_SCRIPTS" ]; then
-        StartExtraScripts
-    fi
+    [ -z "$INIT_FLAG" ] || ImportInitSql
     Print MySQL is ready for connections.
 }
 
 function Main {
     local pid=
-    [ -n "$GROUP_REPLICATION" ] && ProbeSeeds
     Init
-    [ -n "$GROUP_REPLICATION" ] && InitGroupReplication
     StartProc
     trap "GOT_SIGTERM=1; Print Got SIGTERM ..." SIGTERM
     while [ -z "$GOT_SIGTERM" ] && sleep 1; do
diff --git a/mysql/Dockerfile b/mysql/Dockerfile
index 4d52143..c21e0e4 100644
--- a/mysql/Dockerfile
+++ b/mysql/Dockerfile
@@ -3,23 +3,13 @@ FROM            harbor.colben.cn/general/rocky$ARCH:8
 MAINTAINER      Colben colbenlee@gmail.com
 ARG             ARCH
 ADD             --chown=root:root /ADD/ /opt/
-RUN             echo -e "[mysql-connectors-community]\n\
-name=MySQL Connectors Community\n\
-baseurl=https://mirrors.nju.edu.cn/mysql/yum/mysql-connectors-community-el8$ARCH/\n\
-enabled=1\n\
-gpgcheck=0\n\
-\n\
-[mysql-tools-community]\n\
-name=MySQL Tools Community\n\
-baseurl=https://mirrors.nju.edu.cn/mysql/yum/mysql-tools-community-el8$ARCH/\n\
-enabled=1\n\
-gpgcheck=0\n\
-\n\
-[mysql80-community]\n\
+RUN             echo -e "[mysql80-community]\n\
 name=MySQL 8.0 Community Server\n\
-baseurl=https://mirrors.nju.edu.cn/mysql/yum/mysql-8.0-community-el8${ARCH:--x86_64}/\n\
+baseurl=http://repo.mysql.com/yum/mysql-8.0-community/el/8/${ARCH:-x86_64}/\n\
 enabled=1\n\
 gpgcheck=0\n\
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql-2022\n\
+       file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql\n\
 " > /etc/yum.repos.d/mysql-8.0.repo \
                     && dnf makecache \
                     && dnf install mysql-community-server -y --disablerepo=AppStream \
@@ -52,7 +42,7 @@ character-set-server = utf8mb4\n\
 default-storage-engine = innodb\n\
 slow-query-log = TRUE\n\
 slow-query-log-file = /var/log/mysql/slow.log\n\
-default-authentication-plugin = mysql_native_password\n\
+authentication-policy = mysql_native_password\n\
 lower-case-table-names = 1\n\
 \n\
 [mysqladmin]\n\