Question

通过rails控制台在Model中插入值时出现此错误。

＆＃34; Mongo ::错误:: NoServerAvailable：没有可用的服务器匹配 preference：＃using server_selection_timeout = 30 and local_threshold = 0.015＆＃34;

两个容器都运行正常，但Rails无法连接mongodb。我只有一个Dockerfile。

我的docker-compose.yml文件内容是：

<!doctype html>
<html>
    <head>
        <title>Video upload</title>
    </head>
    <body>
        <?php

            function getmimetypes(){
                $url='http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types';
                $types=array();

                array_walk( file( $url ), function( $line, $key, $types ){
                    if( $line && !empty( $line ) && strpos( $line, chr( 35 ) )===false ){
                        list( $m, $e )=array_values( array_filter( preg_split( '@\t@', trim( $line ) ) ) );
                        if( strpos( $e, chr( 32 ) ) ){
                            $o=explode( chr( 32 ), $e );
                            foreach( $o as $e ) $types[ $e ]=$m;
                        } else {
                            $types[ $e ]=$m;
                        }
                    }                       
                }, &$types );
                return $types;
            }

            if( $_SERVER['REQUEST_METHOD']=='POST' && isset( $_FILES['uploadvideo'], $_POST['upload'] ) ){

                /* permitted extensions */
                $exts=array( 'mp4', 'mov', 'avi' );

                /* permitted mimetypes */
                $mimetypes=array( 'video/mp4', 'video/quicktime', 'video/x-msvideo' );

                /* Get an array of possible Mimetypes */
                $types = getmimetypes();


                /* For simplicity, cast as an object */
                $obj=(object)$_FILES['uploadvideo'];
                $name=$obj->name;
                $tmp=$obj->tmp_name;
                $size=$obj->size;
                $type=$obj->type;
                $error=$obj->error;

                $cname=str_replace( " ", "_", $name );

                /* get file extension */
                $ext = pathinfo( $name, PATHINFO_EXTENSION );

                /* set the target path */
                $target="test_upload/{$cname}";

                /* process the uploaded file */
                if( is_uploaded_file( $tmp ) && $error == UPLOAD_ERR_OK ){

                    /*
                        additional checks on file - is it of the correct extension and mimetype?
                    */
                    if( in_array( $ext, $exts ) && in_array( $type, $mimetypes ) ){

                        $result = @move_uploaded_file( $tmp, $target );

                        $sql='insert into `video` ( `name`,`type` ) values ("'.$cname.'","'.$type.'");';
                        if( $result ){
                            $result = mysql_query( $sql );
                            echo $result ? 'Your video '.$cname.' has been successfully uploaded and saved' : 'There was a problem saving your video';
                        } else {
                            echo 'Unable to move your video to it\'s new location';
                        }
                    }
                } else {
                    echo 'Error: Possible attack';
                }
            }
        ?>
        <form enctype='multipart/form-data' method='post'>
            <input name='MAX_FILE_SIZE' value='100000000000000' type='hidden' />
            <input type='file' name='uploadvideo' />
            <input type='submit' name='upload' value='Upload' />
        </form>
    </body>
</html>

我的Dockerfile：

 version: '2'

services:
  mongo:
    image: mongo:3.0
    command: mongod --smallfiles --quiet
    environment:
      - RAILS_ENV=production
      - RACK_ENV=production
    ports:
      - "27017:27017"

  app:
    depends_on:
      - 'mongo'
      # - 'redis'
    build: .
    ports:
      - '3000:3000'
    volumes:
      - '.:/app'
    command: rails s -b '0.0.0.0'
    env_file:
      - '.env'

volumes:
  mongo:

Answer 1

您是否使用mongo（与docker-compose.yml中提到的容器名称相同）作为mongoid.yml中的主机？

无法使用Docker compose将mongodb与Rails容器连接

1 个答案: