docker设置了端口映射,不能访问的解决方案
作者：木叶之秋
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#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脚本之家。如有错误或未考虑完全的地方，望不吝赐教。