Docker sets up port mapping, but cannot access the solution

#docker ps check, all ports are mapped

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

#But check the log

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>

But can't access

reason:

The host in docker cannot be configured with 127.0.0.1 or 192.168.0.1 or the host machine will not be able to access the port

Modify the configuration file - (all those involved and requiring external access need to be modified)

[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" **#Listen to external 8433 here. Change to 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"
  }

After modification, restart the service in docker

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

Check the log again

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> #Connection successful, data incoming.

Check the port connectivity

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 '^]'. #This is ok

OK~ You can connect successfully.

Supplement: The docker image was started successfully but cannot be accessed

Solution:

vi /etc/sysctl.conf or

vi /usr/lib/sysctl.d/00-system.conf Add the following code:

net.ipv4.ip_forward=1

Restart the network service

systemctl restart network to check whether the modification is successful

sysctl net.ipv4.ip_forward If the return value is "net.ipv4.ip_forward = 1", it means success.

The above is my personal experience. I hope it can give you a reference. I also hope that you will support 123WORDPRESS.COM. If there are any mistakes or incomplete considerations, please feel free to correct me.

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