由于使用 Docker 的 PostgresDB 连接失败，无法启动 Apache Superset

Question

我正在尝试使用 Docker 安装 Superset。但是，按照说明操作，我遇到了数据库连接被拒绝的问题。我检查日志，负责数据库服务的容器已启动并正在运行，但是当我检查其日志时，我看到以下致命消息：

2020-09-08 17:19:36.863 UTC [33] FATAL:  database "test" does not exist

这就是我尝试安装 Superset 的方式。

以下是我运行命令时遇到的错误sudo docker-compose up：

superset_app             | ERROR:flask_appbuilder.security.sqla.manager:DB Creation and initialization failed: (psycopg2.OperationalError) could not connect to server: No route to host
superset_app             |  Is the server running on host "db" (172.18.0.3) and accepting
superset_app             |  TCP/IP connections on port 5432?
superset_app             | 
superset_app             | (Background on this error at: http://sqlalche.me/e/13/e3q8)

同样的错误也出现在其他服务中。

docker-compose.yml：

#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache 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://www.apache.org/licenses/LICENSE-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.
#
x-superset-build: &superset-build
  args:
    NPM_BUILD_CMD: build-dev
  context: ./
  dockerfile: Dockerfile-dev
x-superset-depends-on: &superset-depends-on
  - db
  - redis
x-superset-volumes: &superset-volumes
  # /app/pythonpath_docker will be appended to the PYTHONPATH in the final container
  - ./docker/docker-init.sh:/app/docker-init.sh
  - ./docker/pythonpath_dev:/app/pythonpath
  - ./superset:/app/superset
  - ./superset-frontend:/app/superset-frontend
  - superset_home:/app/superset_home

version: "3.7"
services:
  redis:
    image: redis:3.2
    container_name: superset_cache
    restart: unless-stopped
    ports:
      - "127.0.0.1:6379:6379"
    volumes:
      - redis:/data

  db:
    env_file: docker/.env
    image: postgres:10
    container_name: superset_db
    restart: unless-stopped
    ports:
      - "127.0.0.1:5432:5432"
    volumes:
      - db_home:/var/lib/postgresql/data

  superset:
    env_file: docker/.env
    build: *superset-build
    container_name: superset_app
    command: ["flask", "run", "-p", "8088", "--with-threads", "--reload", "--debugger", "--host=0.0.0.0"]
    restart: unless-stopped
    ports:
      - 8088:8088
    depends_on: *superset-depends-on
    volumes: *superset-volumes

  superset-init:
    build: *superset-build
    container_name: superset_init
    command: ["/app/docker-init.sh"]
    env_file: docker/.env
    depends_on: *superset-depends-on
    volumes: *superset-volumes

  superset-node:
    image: node:12
    container_name: superset_node
    command: ["bash", "-c", "cd /app/superset-frontend && npm install -f --no-optional --global webpack webpack-cli && npm install -f --no-optional && npm run dev"]
    env_file: docker/.env
    depends_on: *superset-depends-on
    volumes: *superset-volumes

  superset-worker:
    build: *superset-build
    container_name: superset_worker
    command: ["celery", "worker", "--app=superset.tasks.celery_app:app", "-Ofair", "-l", "INFO"]
    env_file: docker/.env
    restart: unless-stopped
    depends_on: *superset-depends-on
    volumes: *superset-volumes

  superset-tests-worker:
    build: *superset-build
    container_name: superset_tests_worker
    command: ["celery", "worker", "--app=superset.tasks.celery_app:app", "-Ofair", "-l", "INFO"]
    env_file: docker/.env
    environment:
      DATABASE_HOST: localhost
      DATABASE_DB: test
      REDIS_CELERY_DB: 2
      REDIS_RESULTS_DB: 3
      REDIS_HOST: localhost
    network_mode: host
    depends_on: *superset-depends-on
    volumes: *superset-volumes

volumes:
  superset_home:
    external: false
  db_home:
    external: false
  redis:
    external: false

.env 文件：

#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache 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://www.apache.org/licenses/LICENSE-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.
#
COMPOSE_PROJECT_NAME=superset

# database configurations (do not modify)
DATABASE_DB=superset
DATABASE_HOST=db
DATABASE_PASSWORD=superset
DATABASE_USER=superset

# database engine specific environment variables
# change the below if you prefers another database engine
DATABASE_PORT=5432
DATABASE_DIALECT=postgresql
POSTGRES_DB=superset
POSTGRES_USER=superset
POSTGRES_PASSWORD=superset
#MYSQL_DATABASE=superset
#MYSQL_USER=superset
#MYSQL_PASSWORD=superset
#MYSQL_RANDOM_ROOT_PASSWORD=yes

# Add the mapped in /app/pythonpath_docker which allows devs to override stuff
PYTHONPATH=/app/pythonpath:/app/pythonpath_docker
REDIS_HOST=redis
REDIS_PORT=6379

FLASK_ENV=development
SUPERSET_ENV=development
SUPERSET_LOAD_EXAMPLES=yes

我尝试从官方存储库中提供的任何解决方案中解决这个问题，但徒劳无功。如何解决此问题并完成安装？

Answer 1

尝试删除所有容器和映像，然后再次使用 docker compose 构建 Apache Superset。我通常使用以下命令启动 Apache Superset。

docker-compose -f docker-compose.yml up -d