opencast的docker安装

在之前的从源安装和从包安装opencast，都遇到较多环境问题导致失败。所有采用docker安装。

Dockers是有能力打包应用程序及其虚拟容器，可以在任何Linux服务器上运行的依赖性工具，这有助于实现灵活性和便携性，应用程序在任何地方都可以运行。

docker安装opencast总结：

1 安装docker。参考https://docs.docker.com/install/linux/docker-ce/ubuntu/

2 安装docker-compose。参考https://docs.docker.com/install/linux/docker-ce/ubuntu/

3 下载.yml文件。

（下载失败，自己vi文件，然后将内容写入，内容参照：https://github.com/opencast/opencast-docker/tree/master/docker-compose）

vi docker-compose.allinone.mariadb.yml

# Copyright 2016 The WWU eLectures Team All rights reserved.
#
# Licensed under the Educational Community License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
#     http://opensource.org/licenses/ECL-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
 
version: "3"
volumes:
  data: {}
  db: {}
services:
  mariadb:
    image: mariadb:10.0
    environment:
      - MYSQL_ROOT_PASSWORD=root
      - MYSQL_DATABASE=opencast
      - MYSQL_USER=opencast
      - MYSQL_PASSWORD=opencast
    ports:
      - "3306:3306"
    volumes:
      - ./assets/opencast-ddl.sql:/docker-entrypoint-initdb.d/opencast-ddl.sql:ro
      - db:/var/lib/mysql
 
  activemq:
    image: webcenter/activemq:5.14.3
    environment:
      - ACTIVEMQ_MIN_MEMORY=128
      - ACTIVEMQ_MAX_MEMORY=1024
      - ACTIVEMQ_ENABLED_SCHEDULER=true
      - ACTIVEMQ_REMOVE_DEFAULT_ACCOUNT=true
      - ACTIVEMQ_OWNER_LOGIN=admin
      - ACTIVEMQ_OWNER_PASSWORD=password
    volumes:
      - ./assets/activemq.xml:/opt/activemq/conf/activemq.xml:ro
 
  opencast:
    image: quay.io/opencast/allinone:5.2
    environment:
      - ORG_OPENCASTPROJECT_SERVER_URL=http://opencast:8080
      - ORG_OPENCASTPROJECT_DOWNLOAD_URL=http://${HOSTIP:-localhost}:8080/static
      - ORG_OPENCASTPROJECT_SECURITY_ADMIN_USER=admin
      - ORG_OPENCASTPROJECT_SECURITY_ADMIN_PASS=opencast
      - ORG_OPENCASTPROJECT_SECURITY_DIGEST_USER=opencast_system_account
      - ORG_OPENCASTPROJECT_SECURITY_DIGEST_PASS=CHANGE_ME
      - ORG_OPENCASTPROJECT_DB_VENDOR=MySQL
      - ORG_OPENCASTPROJECT_DB_JDBC_URL=jdbc:mysql://mariadb/opencast
      - ORG_OPENCASTPROJECT_DB_JDBC_USER=opencast
      - ORG_OPENCASTPROJECT_DB_JDBC_PASS=opencast
      - ACTIVEMQ_BROKER_URL=failover://(tcp://activemq:61616)?initialReconnectDelay=2000&maxReconnectAttempts=2
      - ACTIVEMQ_BROKER_USERNAME=admin
      - ACTIVEMQ_BROKER_PASSWORD=password
    ports:
      - "8080:8080"
    volumes:
      - data:/data