#!/bin/bash
declare mysql_container="${1:?}"
if systemctl --quiet is-active docker.service; then
    if [[ "$( docker container inspect -f '{{.State.Running}}' "${mysql_container}" 2> /dev/null )" == "true" ]]; then
        if docker exec -t "${mysql_container}" bash -c 'mysqld --validate-config' &>/dev/null; then
            docker restart "$(docker ps -qaf name="${mysql_container}")"
        else
            printf -- '%s\n' \
                'MySQL config of container '"'${mysql_container}'"' does not validate.' \
                'See: docker exec -t '"'${mysql_container}'"' bash -c '"'"'mysqld --validate-config'"'"'.' \
                'We will leave the container running as-is.'
        fi
    fi
fi