将redis与docker compose一起使用时连接被拒绝
这是我现在的docker-compose.yml:将redis与docker compose一起使用时连接被拒绝,docker,redis,connection,Docker,Redis,Connection,这是我现在的docker-compose.yml: version: "2.0" services: redis: image: redis container_name: framework-redis ports: - "127.0.0.1:6379:6379" web: image: myContainer:v1 container_name: framework-web depends
version: "2.0"
services:
redis:
image: redis
container_name: framework-redis
ports:
- "127.0.0.1:6379:6379"
web:
image: myContainer:v1
container_name: framework-web
depends_on:
- redis
volumes:
- /var/www/myApp:/app
environment:
LOG_STDOUT: /var/log/docker.access.log
LOG_STDERR: /var/log/docker.error.log
ports:
- "8100:80"
我尝试过不同的设置;例如:不使用redis的端口值,使用0.0.0.0,切换到expose选项
如果我尝试从主机使用127.0.0.1进行连接,它会工作,但会失败,并为我的应用程序容器显示一条连接被拒绝的消息
有什么想法吗?如果您从
框架web
访问框架redis
,那么您需要使用ip(或容器名称,即框架redis
)和框架redis的端口来访问它。由于它将位于docker桥的后面,因此172.17.0.0/16
范围内的ip将分配给framework redis
。您可以使用该IP或更好,只需将容器名称与6379
端口一起提供即可
$ cat docker-compose.yml
version: "2.0"
services:
redis:
image: redis
container_name: framework-redis
web:
image: redis
container_name: framework-web
depends_on:
- redis
command: [ "redis-cli", "-h", "framework-redis", "ping" ]
$
$ docker-compose up
Recreating framework-redis ... done
Recreating framework-web ... done
Attaching to framework-redis, framework-web
framework-redis | 1:C 09 Dec 2019 19:25:52.798 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
framework-redis | 1:C 09 Dec 2019 19:25:52.798 # Redis version=5.0.6, bits=64, commit=00000000, modified=0, pid=1, just started
framework-redis | 1:C 09 Dec 2019 19:25:52.798 # Warning: no config file specified, using the default config. In order to specify a config file use redis-server /path/to/redis.conf
framework-redis | 1:M 09 Dec 2019 19:25:52.799 * Running mode=standalone, port=6379.
framework-redis | 1:M 09 Dec 2019 19:25:52.800 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
framework-redis | 1:M 09 Dec 2019 19:25:52.800 # Server initialized
framework-redis | 1:M 09 Dec 2019 19:25:52.800 # WARNING you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix this issue run the command 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' as root, and add it to your /etc/rc.local in order to retain the setting after a reboot. Redis must be restarted after THP is disabled.
framework-redis | 1:M 09 Dec 2019 19:25:52.800 * DB loaded from disk: 0.000 seconds
framework-redis | 1:M 09 Dec 2019 19:25:52.800 * Ready to accept connections
framework-web | PONG
framework-web exited with code 0
正如您在上面所看到的,我收到了PING
命令的PONG
还有几点:
端口
以主机端口:容器端口
的形式编写。您不需要提供IP(正如@coulburton在评论中指出的)
- 如果您仅从
framework-web
访问framework-redis
,则不需要发布端口(即端口部分中的6379:6379
)。当我们想要从其他网络(例如主机或其他物理机器)访问在容器网络(据我所知,默认情况下是172.17.0.0/16
)中运行的应用程序时,我们只需要发布端口
这个“127.0.0.1:6379:6379”
难道不应该是“6379:6379”
?您如何从应用程序容器连接到Redis?您应该在Compose文件中使用服务名作为主机名,在您的连接字符串中使用redis
。