I'm using vagrant on Ubuntu OS 18.04, virtual box, Kubernetes,Gradle, and skaffold, I faced the same issue of: "Unable to open debugger port (localhost:5005): java.io.IOException "handshake failed - connection prematurally closed"
It was working fine, till the windows became 11, after that I faced all the issues, I tried to return it to 10 but with no luck
What I tried is:
1- make JDK (11.0.14) the same at vagrant and local machines.
2- JAVA_TOOL_OPTIONS=
"-agentlib:jdwp=transport=dt_socket,server=y,address=*:5005,suspend=n"
3-
here you can find the configuration of remote debugging.
4- vagrant configuration, and there is another file called
Vagrant.configure("2") do |config|
config.vm.provider "virtualbox"
config.vm.provision :shell, path: "./forward-port.sh", run: 'always'
config.vm.define :skaffold do |skaffold|
skaffold.vm.box = "bento/ubuntu-18.04"
skaffold.vm.network "forwarded_port", guest: 80, host: 8080, host_ip: "127.0.0.1"
skaffold.vm.network "forwarded_port", guest: 443, host: 8443, host_ip: "127.0.0.1"
skaffold.vm.network "forwarded_port", guest: 5005, host: 5005, host_ip: "127.0.0.1"
skaffold.vm.network "forwarded_port", guest: 5006, host: 5006, host_ip: "127.0.0.1"
skaffold.vm.network "forwarded_port", guest: 5007, host: 5007, host_ip: "127.0.0.1"
skaffold.vm.network "forwarded_port", guest: 5008, host: 5008, host_ip: "127.0.0.1"
skaffold.vm.network "forwarded_port", guest: 5009, host: 5009, host_ip: "127.0.0.1"
5- forward-port.sh
#!/bin/bash
#sudo iptables -t nat -I PREROUTING -p tcp --dport 3306 -j DNAT --to-destination 127.0.0.1:3306
#sudo iptables -t nat -I PREROUTING -p tcp --dport 6379 -j DNAT --to-destination 127.0.0.1:6379
sudo iptables -t nat -I PREROUTING -p tcp --dport 5005 -j DNAT --to-destination 127.0.0.1:5005
sudo iptables -t nat -I PREROUTING -p tcp --dport 5006 -j DNAT --to-destination 127.0.0.1:5006
sudo iptables -t nat -I PREROUTING -p tcp --dport 5007 -j DNAT --to-destination 127.0.0.1:5007
sudo iptables -t nat -I PREROUTING -p tcp --dport 5008 -j DNAT --to-destination 127.0.0.1:5008
sudo iptables -t nat -I PREROUTING -p tcp --dport 5009 -j DNAT --to-destination 127.0.0.1:5009
sudo iptables -t nat -I PREROUTING -p tcp --dport 5010 -j DNAT --to-destination 127.0.0.1:5010
6- run this command jdb -attach 5005
java.io.IOException: handshake failed - connection prematurally closed
at jdk.jdi/com.sun.tools.jdi.SocketTransportService.handshake(SocketTransportService.java:142)
at jdk.jdi/com.sun.tools.jdi.SocketTransportService.attach(SocketTransportService.java:255)
at jdk.jdi/com.sun.tools.jdi.GenericAttachingConnector.attach(GenericAttachingConnector.java:119)
at jdk.jdi/com.sun.tools.jdi.SocketAttachingConnector.attach(SocketAttachingConnector.java:83)
at jdk.jdi/com.sun.tools.example.debug.tty.VMConnection.attachTarget(VMConnection.java:519)
at jdk.jdi/com.sun.tools.example.debug.tty.VMConnection.open(VMConnection.java:328)
at jdk.jdi/com.sun.tools.example.debug.tty.Env.init(Env.java:63)
at jdk.jdi/com.sun.tools.example.debug.tty.TTY.main(TTY.java:1095)
Fatal error:
Unable to attach to target VM.
➜ ~ lsof -i tcp:5007
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
kubectl 29967 vagrant 10u IPv4 532332 0t0 TCP localhost:5007 (LISTEN)
kubectl 29967 vagrant 11u IPv6 532333 0t0 TCP localhost:5007 (LISTEN)
➜ ~ lsof -i tcp:5006
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
kubectl 29884 vagrant 10u IPv4 533358 0t0 TCP localhost:5006 (LISTEN)
kubectl 29884 vagrant 11u IPv6 533359 0t0 TCP localhost:5006 (LISTEN)
➜ ~ lsof -i tcp:5005
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
kubectl 29052 vagrant 10u IPv4 523761 0t0 TCP localhost:5005 (LISTEN)
kubectl 29052 vagrant 11u IPv6 523762 0t0 TCP localhost:5005 (LISTEN)
