docker has port mapping set inaccessible solution
- 2021-10-25 00:15:29
- OfStack
# docker ps View, 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 it cannot be accessed
Reason:
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 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 outside here 8433. 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"
}
Restart the service in docker after modification
[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.
View 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 what it is ok Adj.
Ok ~ can connect successfully.
Added: docker image started successfully but could not 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 Check whether the modification was successful
sysctl net. ipv4.ip_forward A return of "net.ipv4.ip_forward = 1" indicates success