docker设置了端口映射,不能访问的解决方案

#docker ps 查看， 所有端口都 做了映射

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 764b158ba491 open-falcon-plus-02:v-daiyi-01 “/bin/bash” 2 days ago Up 3 hours 0.0.0.0:4444->4444/tcp, 0.0.0.0:6030-6031->6030-6031/tcp, 0.0.0.0:6070-6071->6070-6071/tcp, 0.0.0.0:6080-6081->6080-6081/tcp, 0.0.0.0:8080-8081->8080-8081/tcp, 0.0.0.0:8433->8433/tcp, 0.0.0.0:9912->9912/tcp, 0.0.0.0:14444->14444/tcp, 0.0.0.0:16060->16060/tcp, 0.0.0.0:18433->18433/tcp, 8082/tcp open-falcon-plus-daiyi-01

#但是查看日志

tail -40 /home/work/open-falcon/agent/logs/agent.log test@ubuntu-10:/tmp/bak$ tail -40 /home/work/open-falcon/agent/logs/agent.log 2018/10/14 20:27:09 transfer.go:48: call Transfer.Update fail: &{{2 1} <nil> 10.0.10.103:8433 1s} dial tcp 10.0.10.103:8433: getsockopt: connection refused 2018/10/14 20:27:09 var.go:95: <= <Total=0, Invalid:0, Latency=0ms, Message:> 2018/10/14 20:27:09 rpc.go:41: dial 10.0.10.103:8433 fail: dial tcp 10.0.10.103:8433: getsockopt: connection refused 2018/10/14 20:27:11 rpc.go:41: dial 10.0.10.103:8433 fail: dial tcp 10.0.10.103:8433: getsockopt: connection refused 2018/10/14 20:27:15 rpc.go:41: dial 10.0.10.103:8433 fail: dial tcp 10.0.10.103:8433: getsockopt: connection refused 2018/10/14 20:27:23 rpc.go:41: dial 10.0.10.103:8433 fail: dial tcp 10.0.10.103:8433: getsockopt: connection refused 2018/10/14 20:27:23 transfer.go:48: call Transfer.Update fail: &{{0 0} <nil> 10.0.10.103:8433 1s} dial tcp 10.0.10.103:8433: getsockopt: connection refused 2018/10/14 20:27:23 var.go:95: <= <Total=0, Invalid:0, Latency=0ms, Message:> 2018/10/14 20:27:41 var.go:88: => <Total=92> <Endpoint:ubuntu, Metric:agent.alive, Type:GAUGE, Tags:, Step:60, Time:1539574061, Value:1> 2018/10/14 20:27:41 var.go:88: => <Total=5> <Endpoint:ubuntu, Metric:df.bytes.free.percent, Type:GAUGE, Tags:mount=/,fstype=ext4, Step:60, Time:1539574061, Value:67.01861018345224>

但是无法访问

原因：

docker里面的host不能配置127.0.0.1 或者192.168.0.1 或则宿主机器将无法访问端口

修改配置文件—（涉及到的，需要外部访问的都需要修改）

[root@ubuntu-10 open-falcon]# vim transfer/config/cfg.json { “debug”: true, “minStep”: 30, “http”: { “enabled”: true, “listen”: “0.0.0.0:6060” }, “rpc”: { “enabled”: true, “listen”: “0.0.0.0:8433” **#此处监听外面8433. 改成0.0.0.0** }, “socket”: { “enabled”: true, “listen”: “0.0.0.0:4444”, “timeout”: 3600 }, “judge”: { “enabled”: true, “batch”: 200, “connTimeout”: 1000, “callTimeout”: 5000, “maxConns”: 32, “maxIdle”: 32, “replicas”: 500, “cluster”: { “judge-00” : “127.0.0.1:6080” } }, “graph”: { “enabled”: true, “batch”: 200, “connTimeout”: 1000, “callTimeout”: 5000, “maxConns”: 32, “maxIdle”: 32, “replicas”: 500, “cluster”: { “graph-00” : “127.0.0.1:6070” } }, “tsdb”: { “enabled”: false, “batch”: 200, “connTimeout”: 1000, “callTimeout”: 5000, “maxConns”: 32, “maxIdle”: 32, “retry”: 3, “address”: “127.0.0.1:8088” }

修改好之后重启 docker里的服务

[root@ubuntu-10 open-falcon]# ./open-falcon restart transfer

再次查看日志

test@ubuntu-10:/tmp/bak$ tail -40 /home/work/open-falcon/agent/logs/agent.log 2018/10/15 02:52:48 var.go:88: => <Total=1> <Endpoint:test-endpoint, Metric:test-metric-97, Type:GAUGE, Tags:idc=lgi-test,loc=beijing-test, Step:20, Time:1539597168, Value:33> 2018/10/15 02:52:48 var.go:95: <= <Total=1, Invalid:0, Latency=0ms, Message:ok> 2018/10/15 02:52:48 var.go:88: => <Total=1> <Endpoint:test-endpoint, Metric:test-metric-97, Type:GAUGE, Tags:idc=lgi-test,loc=beijing-test, Step:20, Time:1539597168, Value:33> 2018/10/15 02:52:48 var.go:95: <= <Total=1, Invalid:0, Latency=0ms, Message:ok> 2018/10/15 02:52:48 var.go:88: => <Total=1> <Endpoint:test-endpoint, Metric:test-metric-97, Type:GAUGE, Tags:idc=lgi-test,loc=beijing-test, Step:20, Time:1539597168, Value:33> 2018/10/15 02:52:48 var.go:95: <= <Total=1, Invalid:0, Latency=0ms, Message:ok> #连接成功，数据传入。

查看端口的连接性

test@ubuntu-10:/tmp/bak$ telnet 10.0.10.103 8433 Trying 10.0.10.103… Connected to 10.0.10.103. Escape character is ^]. #这就是ok的

好啦~ 可以连接成功。

补充：docker 镜像启动成功但是无法访问

解决办法：

vi /etc/sysctl.conf 或者

vi /usr/lib/sysctl.d/00-system.conf 添加如下代码：

net.ipv4.ip_forward=1

重启network服务

systemctl restart network 查看是否修改成功

sysctl net.ipv4.ip_forward 如果返回为“net.ipv4.ip_forward = 1”则表示成功了

以上为个人经验，希望能给大家一个参考，也希望大家多多支持。如有错误或未考虑完全的地方，望不吝赐教。