您好我有一个由Dockerfile
创建的图片# This dockerfile uses the gabrielwu/metinvest image
# Base image to use, this must be set as the first line
FROM gabrielwu/mongodb:v0.01
# Maintainer: docker_user <docker_user at email.com> (@docker_user)
MAINTAINER gabrielwu
EXPOSE 27017
EXPOSE 28017
# Commands to update the image
# Commands when creating a new container
#CMD ["-f /home/mongodir/conf/mongod.conf"]
ENTRYPOINT mongod -f /home/mongodir/conf/mongod.conf
我根据上面的图像创建了一个容器。下面是我用来创建容器的命令。我试图从外部与mongo客户端连接。它说连接被拒绝了。
1010deiMac:metinvest whoami$ docker run -d -p 127.0.0.1:27017:27017 -p 127.0.0.1:28017:28017 gabrielwu/mongodb:v0.02
4c6352575be95c0162a9603ed702d51a8cadcca505c7744b6fac19b84b33a920
1010deiMac:metinvest whoami$ mong
-bash: mong: command not found
1010deiMac:metinvest whoami$ mongo
MongoDB shell version: 3.0.6
connecting to: test
2016-09-15T21:37:51.831+0800 W NETWORK Failed to connect to 127.0.0.1:27017, reason: errno:61 Connection refused
2016-09-15T21:37:51.833+0800 E QUERY Error: couldn't connect to server 127.0.0.1:27017 (127.0.0.1), connection attempt failed
at connect (src/mongo/shell/mongo.js:179:14)
at (connect):1:6 at src/mongo/shell/mongo.js:179
exception: connect failed
1010deiMac:metinvest whoami$
这也是我看到容器的日志。你可以看到mongodb在容器内运行良好。
1010deiMac:metinvest whoami$ docker logs 4c6352575be95c0162a9603ed702d51a8cadcca505c7744b6fac19b84b33a920
Thu Sep 15 13:22:29.694 [initandlisten] MongoDB starting : pid=5 port=27017 dbpath=/home/mongodir/data 64-bit host=4c6352575be9
Thu Sep 15 13:22:29.694 [initandlisten] db version v2.4.9
Thu Sep 15 13:22:29.695 [initandlisten] git version: nogitversion
Thu Sep 15 13:22:29.695 [initandlisten] build info: Linux orlo 3.2.0-58-generic #88-Ubuntu SMP Tue Dec 3 17:37:58 UTC 2013 x86_64 BOOST_LIB_VERSION=1_54
Thu Sep 15 13:22:29.695 [initandlisten] allocator: tcmalloc
Thu Sep 15 13:22:29.695 [initandlisten] options: { config: "/home/mongodir/conf/mongod.conf", dbpath: "/home/mongodir/data" }
Thu Sep 15 13:22:29.699 [initandlisten] journal dir=/home/mongodir/data/journal
Thu Sep 15 13:22:29.700 [initandlisten] recover : no journal files present, no recovery needed
Thu Sep 15 13:22:30.221 [initandlisten] preallocateIsFaster=true 10.02
Thu Sep 15 13:22:30.373 [initandlisten] preallocateIsFaster=true 2.58
Thu Sep 15 13:22:31.492 [FileAllocator] allocating new datafile /home/mongodir/data/local.ns, filling with zeroes...
Thu Sep 15 13:22:31.492 [FileAllocator] creating directory /home/mongodir/data/_tmp
Thu Sep 15 13:22:31.497 [FileAllocator] done allocating datafile /home/mongodir/data/local.ns, size: 16MB, took 0.002 secs
Thu Sep 15 13:22:31.497 [FileAllocator] allocating new datafile /home/mongodir/data/local.0, filling with zeroes...
Thu Sep 15 13:22:31.500 [FileAllocator] done allocating datafile /home/mongodir/data/local.0, size: 64MB, took 0.002 secs
Thu Sep 15 13:22:31.501 [initandlisten] waiting for connections on port 27017
Thu Sep 15 13:22:31.501 [websvr] admin web console waiting for connections on port 28017
我还用docker ps查看。
1010deiMac:metinvest whoami$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
4c6352575be9 gabrielwu/mongodb:v0.02 "/bin/sh -c 'mongod -" 30 minutes ago Up 14 minutes 127.0.0.1:27017->27017/tcp, 127.0.0.1:28017->28017/tcp cocky_mestorf
现在我完全迷失了为什么我无法从外面连接它。
--------------------------编辑-------------------- ------------------
现在我在创建容器时删除了127.0.0.1并再次尝试。它也结束了失败。
1010deiMac:metinvest whoami$ docker run -d -p 27017:27017 -p 28017:28017 gabrielwu/mongodb:v0.02
3eb14d204370867cab18ed26a55ecb42719772852c691c5163d6906cbbb6a329
1010deiMac:metinvest whoami$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
3eb14d204370 gabrielwu/mongodb:v0.02 "/bin/sh -c 'mongod -" 9 seconds ago Up 10 seconds 0.0.0.0:27017->27017/tcp, 0.0.0.0:28017->28017/tcp lonely_khorana
1010deiMac:metinvest whoami$ mongo
MongoDB shell version: 3.0.6
connecting to: test
2016-09-15T22:57:07.713+0800 W NETWORK Failed to connect to 127.0.0.1:27017, reason: errno:61 Connection refused
2016-09-15T22:57:07.715+0800 E QUERY Error: couldn't connect to server 127.0.0.1:27017 (127.0.0.1), connection attempt failed
at connect (src/mongo/shell/mongo.js:179:14)
at (connect):1:6 at src/mongo/shell/mongo.js:179
exception: connect failed
1010deiMac:metinvest whoami$
----------------------------编辑更新----------------- -------
我用机器上的ip尝试它仍然无法正常工作：
1010deiMac:metinvest whoami$ docker-machine env
export DOCKER_TLS_VERIFY="1"
export DOCKER_HOST="tcp://192.168.99.100:2376"
export DOCKER_CERT_PATH="/Users/whoami/.docker/machine/machines/default"
export DOCKER_MACHINE_NAME="default"
# Run this command to configure your shell:
# eval $(docker-machine env)
并且
1010deiMac:metinvest whoami$ docker run -d -p 192.168.99.100:27017:27017 -p 192.168.99.100:28017:28017 gabrielwu/mongodb:v0.02
259cd941be6a005f2dcaf9474625fc423a1ba408d6321e56b5c0f517999abe62
并且
1010deiMac:metinvest whoami$ mongo
MongoDB shell version: 3.0.6
connecting to: test
2016-09-15T23:40:33.170+0800 W NETWORK Failed to connect to 127.0.0.1:27017, reason: errno:61 Connection refused
2016-09-15T23:40:33.172+0800 E QUERY Error: couldn't connect to server 127.0.0.1:27017 (127.0.0.1), connection attempt failed
at connect (src/mongo/shell/mongo.js:179:14)
at (connect):1:6 at src/mongo/shell/mongo.js:179
exception: connect failed
答案 0 :(得分：1)
我无法连接到我的本地主机PC到容器的问题是因为容器在VM中运行!!!
以下是我喜欢分享的有关此问题的一些文章：Accessing docker containers on localhost when using Boot2Docker
port forwarding in docker machine
棘手的是要理解容器是在vm中运行的，所以当暴露容器的端口时，它实际上映射到vm中的端口，而不是我的PC localhost中的端口。
以下是解决问题的方法。 1：将vm的端口映射到localhost。有关如何使用此命令的信息，请参阅VBoxManage controlvm
VBoxManage controlvm default natpf1 "tcp-port27017,tcp,127.0.0.1,27017,,27017"
VBoxManage controlvm default natpf1 "tcp-port28017,tcp,127.0.0.1,28017,,28017"
您还可能需要查询是否添加了映射，或者您想进一步检查，请检查LIST natpf rules in Virtualbox/Vagrant
我更喜欢使用showvminfo来检查映射。您可以在其输出中找到您的映射。
VBoxManage showvminfo default
然后启动容器，并使用mongo客户端进行测试：
1010deiMac:metinvest whoami$ docker run -d -p 27017:27017 -p 28017:28017 gabrielwu/mongodb:v0.02
94d1a4639d662b3ec04a2f363efb984b2d1ff9c4df1db1026d6c94f86013de26
1010deiMac:metinvest whoami$ mongo
MongoDB shell version: 3.0.6
connecting to: test
>
它有效。