How to generate CRaC image for app with database connection

[alapierre]

Issue description

I want to test CRaC image with Micronaut. My sample app use Micronaut Data and PostgreSQL database: https://github.com/alapierre/micronaut-sample. I'm trying to build image like that:

./mvnw package -Dpackaging=docker-crac -Dmaven.test.skip=true

but got error when checkpoint image starts:

INFO: Use -Djdk.crac.collect-fd-stacktraces=true to find the source.
STARTUPTIME 5887858889428 restore
STARTUPTIME 5887877052516 restore-finish
An exception during a checkpoint operation:
jdk.internal.crac.mirror.CheckpointException
	Suppressed: java.nio.channels.IllegalSelectorException
		at java.base/sun.nio.ch.EPollSelectorImpl.beforeCheckpoint(EPollSelectorImpl.java:401)
		at java.base/jdk.internal.crac.mirror.impl.AbstractContext.invokeBeforeCheckpoint(AbstractContext.java:43)
		at java.base/jdk.internal.crac.mirror.impl.AbstractContext.beforeCheckpoint(AbstractContext.java:58)
		at java.base/jdk.internal.crac.mirror.impl.BlockingOrderedContext.beforeCheckpoint(BlockingOrderedContext.java:64)
		at java.base/jdk.internal.crac.mirror.impl.AbstractContext.invokeBeforeCheckpoint(AbstractContext.java:43)
		at java.base/jdk.internal.crac.mirror.impl.AbstractContext.beforeCheckpoint(AbstractContext.java:58)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore1(Core.java:153)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore(Core.java:294)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestoreInternal(Core.java:307)
	Suppressed: jdk.internal.crac.mirror.impl.CheckpointOpenSocketException: Socket[addr=/192.168.20.52,port=5432,localport=32918]
		at java.base/jdk.internal.crac.JDKSocketResourceBase.lambda$beforeCheckpoint$0(JDKSocketResourceBase.java:68)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore1(Core.java:169)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore(Core.java:294)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestoreInternal(Core.java:307)
	Suppressed: jdk.internal.crac.mirror.impl.CheckpointOpenSocketException: Socket[addr=/192.168.20.52,port=5432,localport=32908]
		at java.base/jdk.internal.crac.JDKSocketResourceBase.lambda$beforeCheckpoint$0(JDKSocketResourceBase.java:68)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore1(Core.java:169)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore(Core.java:294)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestoreInternal(Core.java:307)
	Suppressed: jdk.internal.crac.mirror.impl.CheckpointOpenSocketException: sun.nio.ch.ServerSocketChannelImpl[/[0:0:0:0:0:0:0:0]:8080]
		at java.base/jdk.internal.crac.JDKSocketResourceBase.lambda$beforeCheckpoint$0(JDKSocketResourceBase.java:68)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore1(Core.java:169)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore(Core.java:294)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestoreInternal(Core.java:307)
	Suppressed: jdk.internal.crac.mirror.impl.CheckpointOpenSocketException: Socket[addr=/192.168.20.52,port=5432,localport=32932]
		at java.base/jdk.internal.crac.JDKSocketResourceBase.lambda$beforeCheckpoint$0(JDKSocketResourceBase.java:68)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore1(Core.java:169)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore(Core.java:294)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestoreInternal(Core.java:307)
	Suppressed: jdk.internal.crac.mirror.impl.CheckpointOpenSocketException: Socket[addr=/192.168.20.52,port=5432,localport=32960]
		at java.base/jdk.internal.crac.JDKSocketResourceBase.lambda$beforeCheckpoint$0(JDKSocketResourceBase.java:68)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore1(Core.java:169)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore(Core.java:294)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestoreInternal(Core.java:307)
	Suppressed: jdk.internal.crac.mirror.impl.CheckpointOpenSocketException: Socket[addr=/192.168.20.52,port=5432,localport=51894]
		at java.base/jdk.internal.crac.JDKSocketResourceBase.lambda$beforeCheckpoint$0(JDKSocketResourceBase.java:68)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore1(Core.java:169)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore(Core.java:294)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestoreInternal(Core.java:307)
	Suppressed: jdk.internal.crac.mirror.impl.CheckpointOpenSocketException: Socket[addr=/192.168.20.52,port=5432,localport=32990]
		at java.base/jdk.internal.crac.JDKSocketResourceBase.lambda$beforeCheckpoint$0(JDKSocketResourceBase.java:68)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore1(Core.java:169)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore(Core.java:294)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestoreInternal(Core.java:307)
	Suppressed: jdk.internal.crac.mirror.impl.CheckpointOpenSocketException: Socket[addr=/192.168.20.52,port=5432,localport=32980]
		at java.base/jdk.internal.crac.JDKSocketResourceBase.lambda$beforeCheckpoint$0(JDKSocketResourceBase.java:68)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore1(Core.java:169)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore(Core.java:294)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestoreInternal(Core.java:307)
	Suppressed: jdk.internal.crac.mirror.impl.CheckpointOpenSocketException: Socket[addr=/192.168.20.52,port=5432,localport=32934]
		at java.base/jdk.internal.crac.JDKSocketResourceBase.lambda$beforeCheckpoint$0(JDKSocketResourceBase.java:68)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore1(Core.java:169)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore(Core.java:294)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestoreInternal(Core.java:307)
	Suppressed: jdk.internal.crac.mirror.impl.CheckpointOpenSocketException: Socket[addr=/192.168.20.52,port=5432,localport=32974]
		at java.base/jdk.internal.crac.JDKSocketResourceBase.lambda$beforeCheckpoint$0(JDKSocketResourceBase.java:68)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore1(Core.java:169)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore(Core.java:294)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestoreInternal(Core.java:307)
	Suppressed: jdk.internal.crac.mirror.impl.CheckpointOpenSocketException: Socket[addr=/192.168.20.52,port=5432,localport=32950]
		at java.base/jdk.internal.crac.JDKSocketResourceBase.lambda$beforeCheckpoint$0(JDKSocketResourceBase.java:68)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore1(Core.java:169)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore(Core.java:294)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestoreInternal(Core.java:307)
	Suppressed: jdk.internal.crac.mirror.impl.CheckpointOpenResourceException: FD fd=209 type=unknown path=anon_inode:[eventpoll]
		at java.base/jdk.internal.crac.mirror.Core.translateJVMExceptions(Core.java:117)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore1(Core.java:188)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore(Core.java:294)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestoreInternal(Core.java:307)
	Suppressed: jdk.internal.crac.mirror.impl.CheckpointOpenResourceException: FD fd=210 type=unknown path=anon_inode:[eventfd]
		at java.base/jdk.internal.crac.mirror.Core.translateJVMExceptions(Core.java:117)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore1(Core.java:188)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestore(Core.java:294)
		at java.base/jdk.internal.crac.mirror.Core.checkpointRestoreInternal(Core.java:307)
Wait up to 60s for snapshot to be complete
0.0.0.0.0.0.0.0.0.0.0.0.Snapshotting failed
Killing 600

Postgres is running in docker, and Docker host IP is 192.168.20.52 - it accepts connections on 5432 host port.

application.yml db configuration for build:

datasources:
  default:
    db-type: postgres
    dialect: POSTGRES
    driver-class-name: org.postgresql.Driver
    url: jdbc:postgresql://192.168.20.52:5432/sample
    username: user
    password: secret

docker-compose:

version: '3'
services:

  db:
    image: postgres:15-alpine
    volumes:
      - pg_data:/var/lib/postgresql/data
    environment:
      - POSTGRES_PASSWORD=secret
      - POSTGRES_USER=user
      - POSTGRES_DB=sample
    ports:
      - "5432:5432"

volumes:
  pg_data:

[alapierre]

when I changed url to container ID (jdbc:postgresql://d42abe54b25a:5432/sample), I've got:

Starting application
Started application as process 600
Waiting 10s for application to start
OpenJDK 64-Bit Server VM warning: Option CRTraceStartupTime was deprecated in version 21.0.4 and will likely be removed in a future release. Use option CRaCTraceStartupTime instead.
. __  __ _                                  _   
|  \/  (_) ___ _ __ ___  _ __   __ _ _   _| |_ 
| |\/| | |/ __| '__/ _ \| '_ \ / _` | | | | __|
| |  | | | (__| | | (_) | | | | (_| | |_| | |_ 
|_|  |_|_|\___|_|  \___/|_| |_|\__,_|\__,_|\__|
10:13:34.226 [main] INFO  org.hibernate.Version - HHH000412: Hibernate ORM core version 6.5.2.Final
10:13:34.255 [main] INFO  com.zaxxer.hikari.HikariDataSource - HikariPool-1 - Starting...
....failed
Killing 600