Ruby on rails 无法在Rails和Postgres Docker容器之间建立连接
我是Docker新手,尝试使用Docker compose将Rails容器和Postgres容器Docker化,并同时构建和启动,但当我尝试转到localhost:3009查看“耶,你在Rails上”页面时,Rails日志中出现以下错误:Ruby on rails 无法在Rails和Postgres Docker容器之间建立连接,ruby-on-rails,postgresql,docker,docker-compose,Ruby On Rails,Postgresql,Docker,Docker Compose,我是Docker新手,尝试使用Docker compose将Rails容器和Postgres容器Docker化,并同时构建和启动,但当我尝试转到localhost:3009查看“耶,你在Rails上”页面时,Rails日志中出现以下错误: Started GET "/" for 172.27.0.1 at 2020-10-05 12:40:18 +0000 backend_1 | Cannot render console from 172.27.0.1! Allowed
Started GET "/" for 172.27.0.1 at 2020-10-05 12:40:18 +0000
backend_1 | Cannot render console from 172.27.0.1! Allowed networks: 127.0.0.0/127.255.255.255, ::1
backend_1 |
backend_1 | PG::ConnectionBad (could not connect to server: Connection refused
backend_1 | Is the server running on host "postgres" (172.27.0.2) and accepting
backend_1 | TCP/IP connections on port 5439?
backend_1 | ):
这是我的docker-compose.yml:
version: '3'
volumes:
db_data:
driver: local
app_data:
driver: local
services:
# database container
postgres:
image: postgres
volumes:
- app_data:/var/lib/postgresql/data
ports:
- 5439:5432
environment:
POSTGRES_DB: db_name
POSTGRES_USER: user
POSTGRES_PASSWORD: xxxxxx
command: ["postgres", "-c", "log_statement=all"]
restart: always
app:
build: ./server
volumes:
- ./server:/code
ports:
- "3009:3000"
depends_on:
- postgres
environment:
RAILS_ENV: development
DATABASE_HOST: postgres
DATABASE_PORT: 5439
DATABASE_NAME: db_name
DATABASE_USERNAME: user
DATABASE_PASSWORD: xxxxxx
command: bash -c "rm -f tmp/pids/server.pid && bundle exec rails s -p 3000 -b '0.0.0.0'"
这是Dockerfile:
FROM ruby:2.7.1
WORKDIR /app
COPY . /app
# Install NodeJS and Yarn.
RUN curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
RUN echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list
RUN apt-get update && apt-get install -y yarn
RUN yarn install --check-files
RUN bundle install
CMD ["rails", "server", "-b", "0.0.0.0"]
这是我的数据库.yml
default: &default
adapter: postgresql
encoding: unicode
pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
host: <%= ENV['DATABASE_HOST'] %>
port: <%= ENV['DATABASE_PORT'] %>
database: <%= ENV['DATABASE_NAME'] %>
username: <%= ENV['DATABASE_USERNAME'] %>
password: <%= ENV['DATABASE_PASSWORD'] %>
development:
<<: *default
test:
<<: *default
default:&default
适配器:postgresql
编码:unicode
游泳池:
主持人:
端口:
数据库:
用户名:
密码:
发展:
正如戴维·梅兹指出的那样:
需要将数据库_端口设置为普通PostgreSQL端口5432;端口:对于集装箱间通信,端口被忽略(且不必要)
正如戴维·梅兹指出的那样:
需要将数据库_端口设置为普通PostgreSQL端口5432;端口:对于集装箱间通信,端口被忽略(且不必要)
您需要将数据库_端口
设置为普通PostgreSQL端口5432<代码>端口:
对于集装箱间的通信是被忽略的(并且是不必要的)。谢谢,这是我不知道的一条重要信息。您需要将数据库\u端口
设置为普通的PostgreSQL端口5432<代码>端口:对于集装箱之间的通信被忽略(而且是不必要的)。谢谢,这是我不知道的一条重要信息