docker-compose:容器之间的Redis连接被拒绝 [英] docker-compose: redis connection refused between containers
问题描述
我正在尝试设置一个docker-compose文件,该文件旨在使用主管。
I am trying to setup a docker-compose file that is intended to replace a single Docker container solution that runs several processes (RQ worker, RQ dashboard and a Flask application) with Supervisor.
主机系统是Debian 8 Linux和我的 docker-compose。 yml
看起来像这样(我删除了所有其他条目以减少错误源):
The host system is a Debian 8 Linux and my docker-compose.yml
looks like this (I deleted all other entries to reduce error sources):
version: '2'
services:
redis:
image: redis:latest
rq-worker1:
build: .
command: /usr/local/bin/rqworker boo-uploads
depends_on:
- redis
rq-worker1是Python RQ工人,试图连接到Redis通过本地主机和端口6379,但无法建立连接:
"rq-worker1" is a Python RQ worker, trying to connect to redis via localhost and port 6379, but it fails to establish a connection:
redis_1 | 1:M 23 Dec 13:06:26.285 * The server is now ready to accept connections on port 6379
rq-worker1_1 | [2016-12-23 13:06] DEBUG: worker: Registering birth of worker d5cb16062fc0.1
rq-worker1_1 | Error 111 connecting to localhost:6379. Connection refused.
galileoqueue_rq-worker1_1 exited with code 1
docker的输出ps
看起来像这样:
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
36cac91670d2 redis:latest "docker-entrypoint.sh" 14 minutes ago Up About a minute 6379/tcp galileoqueue_redis_1
I尝试了从针对本地IP 0.0.0.0 / 127.0.0.1甚至本地主机运行RQ工作器的所有操作。在Stackoverflow上发布的其他解决方案也不适用于我( docker-compose:容器之间的连接被拒绝,但是可以从主机访问服务例如)。
I tried everything from running the RQ worker against the local IPs 0.0.0.0 / 127.0.0.1 and even localhost. Other solutions posted on Stackoverflow didn't work for me, too (docker-compose: connection refused between containers, but service accessible from host e.g.).
这是我的 docker信息
输出:
Containers: 25
Running: 1
Paused: 0
Stopped: 24
Images: 485
Server Version: 1.12.5
Storage Driver: aufs
Root Dir: /var/lib/docker/aufs
Backing Filesystem: extfs
Dirs: 436
Dirperm1 Supported: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: null bridge host overlay
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Security Options:
Kernel Version: 3.16.0-4-amd64
Operating System: Debian GNU/Linux 8 (jessie)
OSType: linux
Architecture: x86_64
CPUs: 8
Total Memory: 13.61 GiB
Name: gp-pc-201
ID: LBGV:K26G:UXXI:BWRH:OYVE:OQTA:N7LQ:I4DV:BTNH:FZEW:7XDD:WOCU
有人知道为什么两个容器之间的连接吗
Does anyone have an idea why the connect between the two containers doesn't work?
推荐答案
在您的代码 localhost
中,从 rq-worker1
是 rq-worker1
本身,而不是 redis
无法从 rq-worker1 $连接到
作为域名,例如: localhost
来达到 redis:6379
c $ c>。但默认情况下, redis
和 rq-worker1
在同一网络,您可以将服务名称用作该网络中的域名。
这意味着您可以使用 rq-worker1
连接到 redis
服务> redis client.connect(( redis,6379))
In your code localhost
from rq-worker1
is rq-worker1
itself, not redis
and you can't reach redis:6379
by connect to localhost
from rq-worker1
. But by default redis
and rq-worker1
are in the same network and you can use service name as a domain name in that network.
It means, that you can connect to redis
service from rq-worker1
using redis
as a domain name, for instance: client.connect(("redis", 6379))
您应在 rq-的配置中将
。 localhost
替换为 redis
worker1
You should replace localhost
with redis
in config of rq-worker1
.
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