运行METVIEWER
=====================

获取Metviewer Docker container
----------------------------------------

* please ask for Metviewer container from provioder

载入Metviewer Docker container
-----------------------------------------

    .. code-block:: bash

        $ docker image load -i metviewer-docker.tar.gz 
        877b494a9f30: Loading layer [==================================================>]  209.6MB/209.6MB
        97f2f5802dcb: Loading layer [==================================================>]  217.9MB/217.9MB
        cd1fe069da7a: Loading layer [==================================================>]  969.8MB/969.8MB
        1f0c11b0a00a: Loading layer [==================================================>]   2.56kB/2.56kB
        296d3c24a5e6: Loading layer [==================================================>]  7.981MB/7.981MB
        f7945d0b3f97: Loading layer [==================================================>]  13.93MB/13.93MB
        e64d268568d1: Loading layer [==================================================>]  47.43MB/47.43MB
        Loaded image: metviewer:latest

        $ docker image load -i mysql.tar.gz
        e9dc98463cd6: Loading layer [==================================================>]  58.48MB/58.48MB
        7288a4c980c6: Loading layer [==================================================>]  338.4kB/338.4kB
        683d7a4130fe: Loading layer [==================================================>]  10.44MB/10.44MB
        5547ac6d39e8: Loading layer [==================================================>]  4.472MB/4.472MB
        9a341d74c9b2: Loading layer [==================================================>]  1.536kB/1.536kB
        7acae26d323c: Loading layer [==================================================>]  46.15MB/46.15MB
        9e88946b01ba: Loading layer [==================================================>]  32.77kB/32.77kB
        7c808cd26970: Loading layer [==================================================>]  3.584kB/3.584kB
        252c276e7a19: Loading layer [==================================================>]  258.4MB/258.4MB
        3b7576a71f0c: Loading layer [==================================================>]  9.728kB/9.728kB
        7848732ef73b: Loading layer [==================================================>]  1.536kB/1.536kB
        Loaded image: mysql:5.7

        $ docker image ls -a
        REPOSITORY             TAG                 IMAGE ID            CREATED             SIZE
        docker-airflow_met81   latest              1e4488277470        21 hours ago        3.15GB
        postgres               9.6                 afd8110f1813        5 months ago        211MB
        metviewer              latest              0e8958dc48c4        5 months ago        1.42GB
        redis                  5.0.5               63130206b0fa        6 months ago        98.2MB
        mysql                  5.7                 383867b75fd2        6 months ago        373MB

克隆Metviewer repository
------------------------------

    .. code-block:: bash

        $ git clone https://github.com/NCAR/container-dtc-metviewer.git


启动Metviewer服务
-----------------------

* make several directories and prepare the environmental variables, such as:

    .. code-block:: bash

        $ mkdir -p mysql/tables
        $ export MYSQL_DIR=/home/wrf/MET/mysql/tables
        $ mkdir -p metviewer_output
        $ export METVIEWER_DIR=/home/wrf/MET/metviewer_output
        $ mkdir -p metviewer_data
        $ export METVIEWER_DATA=/home/wrf/MET/metviewer_data

    .. code-block:: bash

        $ cd container-dtc-metviewer
        $ docker-compose up -d
        Pulling db (mysql:5.7)...
        5.7: Pulling from library/mysql
        8f91359f1fff: Pull complete
        6bbb1c853362: Pull complete
        e6e554c0af6f: Pull complete
        f391c1a77330: Pull complete
        414a8a88eabc: Pull complete
        fee78658f4dd: Pull complete
        9568f6bff01b: Pull complete
        76041efb6f83: Pull complete
        ea54dbd83183: Pull complete
        566857d8f022: Pull complete
        01c09495c6e7: Pull complete
        Digest: sha256:f7985e36c668bb862a0e506f4ef9acdd1254cdf690469816f99633898895f7fa
        Status: Downloaded newer image for mysql:5.7
        Creating mysql_mv ... done
        Creating metviewer_1 ... done

* 修改端口号

    因为 MET-Airflow 使用了 8080 端口号，为了避免冲突，我们使用8081 端口, 需要修改 :code:`docker-compose.yml` 文件：

    .. code-block:: bash

        $ git diff
        diff --git a/docker-compose.yml b/docker-compose.yml
        index 7f20161..3602ea7 100644
        --- a/docker-compose.yml
        +++ b/docker-compose.yml
        @@ -14,7 +14,7 @@ metviewer:
             image: metviewer
             container_name: metviewer_1
             ports:
        -    - "8080:8080"
        +    - "8081:8080"
             volumes:
               - ${METVIEWER_DATA}:/data
               - ${METVIEWER_DIR}/metviewer_output/xml:/opt/tomcat/webapps/metviewer_output/xml

* Open a web browser (such as Firefox), open the website:

    http://10.86.41.176:8081/metviewer/metviewer1.jsp

    you will see the metviewer screen:

    .. figure:: images/metviewer_screen.png
       :scale: 30%
       :align: center
       :alt:  METVIEWER界面

       METVIEWER界面
   
关闭Metviewer服务
--------------------------

    .. code:: bash
    
        $ docker-compose down
        Stopping metviewer_1 ... done
        Stopping mysql_mv    ... done
        Removing metviewer_1 ... done
        Removing mysql_mv    ... done