docker-复合命令重写yaml文件中指定的容器名称。

Question

为什么停靠者要重写容器名？容器的名称是'redis_redis-server_1‘(而不是预期的'redis-server’)。在yml文件中指定的容器名称是'redis-server‘。

复合液的含量。指定的容器名为redis-server。

version: '3'
services:
   redis-server:
      image: 'redis'

在运行码头前-撰写：

$ docker ps -a
CONTAINER ID   IMAGE          COMMAND                  CREATED        STATUS                     PORTS     NAMES
26e88fcdbd37   af81c4b35bd6   "java -jar drivebox.…"   47 hours ago   Exited (143) 5 hours ago             stupefied_poitras

船坞-合成输出：

$ docker-compose up
Creating network "redis_default" with the default driver
Creating redis_redis-server_1 ... done
Attaching to redis_redis-server_1
redis-server_1  | 1:C 04 Nov 2022 14:11:52.365 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
redis-server_1  | 1:C 04 Nov 2022 14:11:52.365 # Redis version=7.0.5, bits=64, commit=00000000, modified=0, pid=1, just started
redis-server_1  | 1:C 04 Nov 2022 14:11:52.365 # Warning: no config file specified, using the default config. In order to specify a config file use redis-server /path/to/redis.conf
redis-server_1  | 1:M 04 Nov 2022 14:11:52.366 * monotonic clock: POSIX clock_gettime
redis-server_1  | 1:M 04 Nov 2022 14:11:52.366 * Running mode=standalone, port=6379.
redis-server_1  | 1:M 04 Nov 2022 14:11:52.366 # Server initialized
redis-server_1  | 1:M 04 Nov 2022 14:11:52.367 * Ready to accept connections

容器名称被重写为redis_redis-server_1。

$ docker ps
CONTAINER ID   IMAGE     COMMAND                  CREATED         STATUS         PORTS      NAMES
5a689b1c6abb   redis     "docker-entrypoint.s…"   2 minutes ago   Up 2 minutes   6379/tcp   redis_redis-server_1

$ docker --version
Docker version 20.10.17, build 100c701

$ docker-compose -v
docker-compose version 1.29.2, build 5becea4c

Answer 1

除非为服务指定了container_name parameter，否则容器名称将以__格式生成，其中

• <project>是坞-组合项目的名称(取自docker-compose.yml所在目录的名称)(在您的示例中，redis)
• <service>是容器创建的服务的名称(在您的示例中，redis-server)
• <index>是从同一服务创建的容器中容器的索引(在Docker中为1，在Docker中为N>=1 )

)。