kubernetes/portal/charts/portal-mariadb/resources/config/mariadb/docker-entrypoint.sh

   1 #!/bin/bash
   2 set -eo pipefail
   3 shopt -s nullglob
   4
   5 # if command starts with an option, prepend mysqld
   6 if [ "${1:0:1}" = '-' ]; then
   7         set -- mysqld "$@"
   8 fi
   9
  10 # skip setup if they want an option that stops mysqld
  11 wantHelp=
  12 for arg; do
  13         case "$arg" in
  14                 -'?'|--help|--print-defaults|-V|--version)
  15                         wantHelp=1
  16                         break
  17                         ;;
  18         esac
  19 done
  20
  21 # usage: file_env VAR [DEFAULT]
  22 #    ie: file_env 'XYZ_DB_PASSWORD' 'example'
  23 # (will allow for "$XYZ_DB_PASSWORD_FILE" to fill in the value of
  24 #  "$XYZ_DB_PASSWORD" from a file, especially for Docker's secrets feature)
  25 file_env() {
  26         local var="$1"
  27         local fileVar="${var}_FILE"
  28         local def="${2:-}"
  29         if [ "${!var:-}" ] && [ "${!fileVar:-}" ]; then
  30                 echo >&2 "error: both $var and $fileVar are set (but are exclusive)"
  31                 exit 1
  32         fi
  33         local val="$def"
  34         if [ "${!var:-}" ]; then
  35                 val="${!var}"
  36         elif [ "${!fileVar:-}" ]; then
  37                 val="$(< "${!fileVar}")"
  38         fi
  39         export "$var"="$val"
  40         unset "$fileVar"
  41 }
  42
  43 _check_config() {
  44         toRun=( "$@" --verbose --help --log-bin-index="$(mktemp -u)" )
  45         if ! errors="$("${toRun[@]}" 2>&1 >/dev/null)"; then
  46                 cat >&2 <<-EOM
  47
  48                                 ERROR: mysqld failed while attempting to check config
  49                                 command was: "${toRun[*]}"
  50
  51                                 $errors
  52                                 EOM
  53                 exit 1
  54         fi
  55 }
  56
  57 # Fetch value from server config
  58 # We use mysqld --verbose --help instead of my_print_defaults because the
  59 # latter only show values present in config files, and not server defaults
  60 _get_config() {
  61         local conf="$1"; shift
  62         "$@" --verbose --help --log-bin-index="$(mktemp -u)" 2>/dev/null | awk '$1 == "'"$conf"'" { print $2; exit }'
  63 }
  64
  65 # allow the container to be started with `--user`
  66 if [ "$1" = 'mysqld' -a -z "$wantHelp" -a "$(id -u)" = '0' ]; then
  67         _check_config "$@"
  68         DATADIR="$(_get_config 'datadir' "$@")"
  69         mkdir -p "$DATADIR"
  70         find "$DATADIR" \! -user mysql -exec chown mysql '{}' +
  71         exec gosu mysql "$BASH_SOURCE" "$@"
  72 fi
  73
  74 if [ "$1" = 'mysqld' -a -z "$wantHelp" ]; then
  75         # still need to check config, container may have started with --user
  76         _check_config "$@"
  77         # Get config
  78         DATADIR="$(_get_config 'datadir' "$@")"
  79
  80         if [ ! -d "$DATADIR/mysql" ]; then
  81                 file_env 'MYSQL_ROOT_PASSWORD'
  82                 if [ -z "$MYSQL_ROOT_PASSWORD" -a -z "$MYSQL_ALLOW_EMPTY_PASSWORD" -a -z "$MYSQL_RANDOM_ROOT_PASSWORD" ]; then
  83                         echo >&2 'error: database is uninitialized and password option is not specified '
  84                         echo >&2 '  You need to specify one of MYSQL_ROOT_PASSWORD, MYSQL_ALLOW_EMPTY_PASSWORD and MYSQL_RANDOM_ROOT_PASSWORD'
  85                         exit 1
  86                 fi
  87
  88                 mkdir -p "$DATADIR"
  89
  90                 echo 'Initializing database'
  91                 # "Other options are passed to mysqld." (so we pass all "mysqld" arguments directly here)
  92                 mysql_install_db --datadir="$DATADIR" --rpm "${@:2}"
  93                 echo 'Database initialized'
  94
  95                 SOCKET="$(_get_config 'socket' "$@")"
  96                 "$@" --skip-networking --socket="${SOCKET}" &
  97                 pid="$!"
  98
  99                 mysql=( mysql --protocol=socket -uroot -hlocalhost --socket="${SOCKET}" )
 100
 101                 for i in {60..0}; do
 102                         if echo 'SELECT 1' | "${mysql[@]}" &> /dev/null; then
 103                                 break
 104                         fi
 105                         echo 'MySQL init process in progress...'
 106                         sleep 1
 107                 done
 108                 if [ "$i" = 0 ]; then
 109                         echo >&2 'MySQL init process failed.'
 110                         exit 1
 111                 fi
 112
 113                 if [ -z "$MYSQL_INITDB_SKIP_TZINFO" ]; then
 114                         # sed is for https://bugs.mysql.com/bug.php?id=20545
 115                         mysql_tzinfo_to_sql /usr/share/zoneinfo | sed 's/Local time zone must be set--see zic manual page/FCTY/' | "${mysql[@]}" mysql
 116                 fi
 117
 118                 if [ ! -z "$MYSQL_RANDOM_ROOT_PASSWORD" ]; then
 119                         export MYSQL_ROOT_PASSWORD="$(pwgen -1 32)"
 120                         echo "GENERATED ROOT PASSWORD: $MYSQL_ROOT_PASSWORD"
 121                 fi
 122
 123                 rootCreate=
 124                 # default root to listen for connections from anywhere
 125                 file_env 'MYSQL_ROOT_HOST' '%'
 126                 if [ ! -z "$MYSQL_ROOT_HOST" -a "$MYSQL_ROOT_HOST" != 'localhost' ]; then
 127                         # no, we don't care if read finds a terminating character in this heredoc
 128                         # https://unix.stackexchange.com/questions/265149/why-is-set-o-errexit-breaking-this-read-heredoc-expression/265151#265151
 129                         read -r -d '' rootCreate        <<-EOSQL || true
 130                                                 CREATE USER 'root'@'${MYSQL_ROOT_HOST}' IDENTIFIED BY '${MYSQL_ROOT_PASSWORD}' ;
 131                                                 GRANT ALL ON *.* TO 'root'@'${MYSQL_ROOT_HOST}' WITH GRANT OPTION ;
 132                                                 EOSQL
 133                 fi
 134
 135                 "${mysql[@]}"   <<-EOSQL
 136                                                 -- What's done in this file shouldn't be replicated
 137                                                 --  or products like mysql-fabric won't work
 138                                                 SET @@SESSION.SQL_LOG_BIN=0;
 139
 140                                                 DELETE FROM mysql.user WHERE user NOT IN ('mysql.sys', 'mysqlxsys', 'root') OR host NOT IN ('localhost') ;
 141                                                 SET PASSWORD FOR 'root'@'localhost'=PASSWORD('${MYSQL_ROOT_PASSWORD}') ;
 142                                                 GRANT ALL ON *.* TO 'root'@'localhost' WITH GRANT OPTION ;
 143                                                 ${rootCreate}
 144                                                 DROP DATABASE IF EXISTS test ;
 145                                                 FLUSH PRIVILEGES ;
 146                                         EOSQL
 147
 148                 if [ ! -z "$MYSQL_ROOT_PASSWORD" ]; then
 149                         mysql+=( -p"${MYSQL_ROOT_PASSWORD}" )
 150                 fi
 151
 152                 file_env 'MYSQL_DATABASE'
 153                 if [ "$MYSQL_DATABASE" ]; then
 154                         echo "CREATE DATABASE IF NOT EXISTS \`$MYSQL_DATABASE\` ;" | "${mysql[@]}"
 155                         mysql+=( "$MYSQL_DATABASE" )
 156                 fi
 157
 158                 file_env 'MYSQL_USER'
 159                 file_env 'MYSQL_PASSWORD'
 160                 if [ "$MYSQL_USER" -a "$MYSQL_PASSWORD" ]; then
 161                         echo "CREATE USER '$MYSQL_USER'@'%' IDENTIFIED BY '$MYSQL_PASSWORD' ;" | "${mysql[@]}"
 162
 163                         if [ "$MYSQL_DATABASE" ]; then
 164                                 echo "GRANT ALL ON \`$MYSQL_DATABASE\`.* TO '$MYSQL_USER'@'%' ;" | "${mysql[@]}"
 165                         fi
 166                 fi
 167
 168                 echo
 169                 for f in /docker-entrypoint-initdb.d/*; do
 170                         case "$f" in
 171                                 *.sh)     echo "$0: running $f"; . "$f" ;;
 172                                 *.sql)    echo "$0: running $f"; "${mysql[@]}" < "$f"; echo ;;
 173                                 *.sql.gz) echo "$0: running $f"; gunzip -c "$f" | "${mysql[@]}"; echo ;;
 174                                 *)        echo "$0: ignoring $f" ;;
 175                         esac
 176                         echo
 177                 done
 178
 179                 if ! kill -s TERM "$pid" || ! wait "$pid"; then
 180                         echo >&2 'MySQL init process failed.'
 181                         exit 1
 182                 fi
 183
 184                 echo
 185                 echo 'MySQL init process done. Ready for start up.'
 186                 echo
 187         fi
 188 fi
 189
 190 exec "$@"