diff options
Diffstat (limited to 'kubernetes/clamp/components/clamp-mariadb/resources/config/init')
| -rwxr-xr-x | kubernetes/clamp/components/clamp-mariadb/resources/config/init/docker-entrypoint.sh | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/kubernetes/clamp/components/clamp-mariadb/resources/config/init/docker-entrypoint.sh b/kubernetes/clamp/components/clamp-mariadb/resources/config/init/docker-entrypoint.sh new file mode 100755 index 0000000000..71f32e2eff --- /dev/null +++ b/kubernetes/clamp/components/clamp-mariadb/resources/config/init/docker-entrypoint.sh @@ -0,0 +1,198 @@ +#!/bin/bash +set -eo pipefail +shopt -s nullglob + +# if command starts with an option, prepend mysqld +if [ "${1:0:1}" = '-' ]; then + set -- mysqld "$@" +fi + +# skip setup if they want an option that stops mysqld +wantHelp= +for arg; do + case "$arg" in + -'?'|--help|--print-defaults|-V|--version) + wantHelp=1 + break + ;; + esac +done + +prepare_password() +{ + echo "$1" | sed -e "s/'/\\\\'/g; s/\"/\\\\\"/g" +} + +# usage: file_env VAR [DEFAULT] +# ie: file_env 'XYZ_DB_PASSWORD' 'example' +# (will allow for "$XYZ_DB_PASSWORD_FILE" to fill in the value of +# "$XYZ_DB_PASSWORD" from a file, especially for Docker's secrets feature) +file_env() { + local var="$1" + local fileVar="${var}_FILE" + local def="${2:-}" + if [ "${!var:-}" ] && [ "${!fileVar:-}" ]; then + echo >&2 "error: both $var and $fileVar are set (but are exclusive)" + exit 1 + fi + local val="$def" + if [ "${!var:-}" ]; then + val="${!var}" + elif [ "${!fileVar:-}" ]; then + val="$(< "${!fileVar}")" + fi + val=`prepare_password $val` + export "$var"="$val" + unset "$fileVar" +} + +_check_config() { + toRun=( "$@" --verbose --help --log-bin-index="$(mktemp -u)" ) + if ! errors="$("${toRun[@]}" 2>&1 >/dev/null)"; then + cat >&2 <<-EOM + + ERROR: mysqld failed while attempting to check config + command was: "${toRun[*]}" + + $errors + EOM + exit 1 + fi +} + +# Fetch value from server config +# We use mysqld --verbose --help instead of my_print_defaults because the +# latter only show values present in config files, and not server defaults +_get_config() { + local conf="$1"; shift + "$@" --verbose --help --log-bin-index="$(mktemp -u)" 2>/dev/null \ + | awk '$1 == "'"$conf"'" && /^[^ \t]/ { sub(/^[^ \t]+[ \t]+/, ""); print; exit }' + # match "datadir /some/path with/spaces in/it here" but not "--xyz=abc\n datadir (xyz)" +} + +# allow the container to be started with `--user` +if [ "$1" = 'mysqld' -a -z "$wantHelp" -a "$(id -u)" = '0' ]; then + _check_config "$@" + DATADIR="$(_get_config 'datadir' "$@")" + mkdir -p "$DATADIR" + find "$DATADIR" \! -user mysql -exec chown mysql '{}' + + exec gosu mysql "$BASH_SOURCE" "$@" +fi + +if [ "$1" = 'mysqld' -a -z "$wantHelp" ]; then + # still need to check config, container may have started with --user + _check_config "$@" + # Get config + DATADIR="$(_get_config 'datadir' "$@")" + + if [ ! -d "$DATADIR/mysql" ]; then + file_env 'MYSQL_ROOT_PASSWORD' + if [ -z "$MYSQL_ROOT_PASSWORD" -a -z "$MYSQL_ALLOW_EMPTY_PASSWORD" -a -z "$MYSQL_RANDOM_ROOT_PASSWORD" ]; then + echo >&2 'error: database is uninitialized and password option is not specified ' + echo >&2 ' You need to specify one of MYSQL_ROOT_PASSWORD, MYSQL_ALLOW_EMPTY_PASSWORD and MYSQL_RANDOM_ROOT_PASSWORD' + exit 1 + fi + + mkdir -p "$DATADIR" + + echo 'Initializing database' + # "Other options are passed to mysqld." (so we pass all "mysqld" arguments directly here) + mysql_install_db --datadir="$DATADIR" --rpm "${@:2}" + echo 'Database initialized' + + SOCKET="$(_get_config 'socket' "$@")" + "$@" --skip-networking --socket="${SOCKET}" & + pid="$!" + + mysql=( mysql --protocol=socket -uroot -hlocalhost --socket="${SOCKET}" ) + + for i in {30..0}; do + if echo 'SELECT 1' | "${mysql[@]}" &> /dev/null; then + break + fi + echo 'MySQL init process in progress...' + sleep 1 + done + if [ "$i" = 0 ]; then + echo >&2 'MySQL init process failed.' + exit 1 + fi + + if [ -z "$MYSQL_INITDB_SKIP_TZINFO" ]; then + # sed is for https://bugs.mysql.com/bug.php?id=20545 + mysql_tzinfo_to_sql /usr/share/zoneinfo | sed 's/Local time zone must be set--see zic manual page/FCTY/' | "${mysql[@]}" mysql + fi + + if [ ! -z "$MYSQL_RANDOM_ROOT_PASSWORD" ]; then + export MYSQL_ROOT_PASSWORD="$(pwgen -1 32)" + echo "GENERATED ROOT PASSWORD: $MYSQL_ROOT_PASSWORD" + fi + + rootCreate= + # default root to listen for connections from anywhere + file_env 'MYSQL_ROOT_HOST' '%' + if [ ! -z "$MYSQL_ROOT_HOST" -a "$MYSQL_ROOT_HOST" != 'localhost' ]; then + # no, we don't care if read finds a terminating character in this heredoc + # https://unix.stackexchange.com/questions/265149/why-is-set-o-errexit-breaking-this-read-heredoc-expression/265151#265151 + read -r -d '' rootCreate <<-EOSQL || true + CREATE USER 'root'@'${MYSQL_ROOT_HOST}' IDENTIFIED BY '${MYSQL_ROOT_PASSWORD}' ; + GRANT ALL ON *.* TO 'root'@'${MYSQL_ROOT_HOST}' WITH GRANT OPTION ; + EOSQL + fi + + "${mysql[@]}" <<-EOSQL + -- What's done in this file shouldn't be replicated + -- or products like mysql-fabric won't work + SET @@SESSION.SQL_LOG_BIN=0; + + DELETE FROM mysql.user WHERE user NOT IN ('mysql.sys', 'mysqlxsys', 'root') OR host NOT IN ('localhost') ; + SET PASSWORD FOR 'root'@'localhost'=PASSWORD('${MYSQL_ROOT_PASSWORD}') ; + GRANT ALL ON *.* TO 'root'@'localhost' WITH GRANT OPTION ; + ${rootCreate} + DROP DATABASE IF EXISTS test ; + FLUSH PRIVILEGES ; + EOSQL + + if [ ! -z "$MYSQL_ROOT_PASSWORD" ]; then + mysql+=( -p"${MYSQL_ROOT_PASSWORD}" ) + fi + + file_env 'MYSQL_DATABASE' + if [ "$MYSQL_DATABASE" ]; then + echo "CREATE DATABASE IF NOT EXISTS \`$MYSQL_DATABASE\` ;" | "${mysql[@]}" + mysql+=( "$MYSQL_DATABASE" ) + fi + + file_env 'MYSQL_USER' + file_env 'MYSQL_PASSWORD' + if [ "$MYSQL_USER" -a "$MYSQL_PASSWORD" ]; then + echo "CREATE USER '$MYSQL_USER'@'%' IDENTIFIED BY '$MYSQL_PASSWORD' ;" | "${mysql[@]}" + + if [ "$MYSQL_DATABASE" ]; then + echo "GRANT ALL ON \`$MYSQL_DATABASE\`.* TO '$MYSQL_USER'@'%' ;" | "${mysql[@]}" + fi + fi + + echo + for f in /docker-entrypoint-initdb.d/*; do + case "$f" in + *.sh) echo "$0: running $f"; . "$f" ;; + *.sql) echo "$0: running $f"; "${mysql[@]}" < "$f"; echo ;; + *.sql.gz) echo "$0: running $f"; gunzip -c "$f" | "${mysql[@]}"; echo ;; + *) echo "$0: ignoring $f" ;; + esac + echo + done + + if ! kill -s TERM "$pid" || ! wait "$pid"; then + echo >&2 'MySQL init process failed.' + exit 1 + fi + + echo + echo 'MySQL init process done. Ready for start up.' + echo + fi +fi + +exec "$@" |