"Can not connect to Ryuk" on Win with Docker Desktop Edge 2.4.2.0

Upgrade to the latest Docker Desktop Edge(2.4.2.0), and using Testcontainers 1.5.0-rc2.

❯ docker -v
Docker version 20.10.0-beta1, build ac365d7

When running my testing codes, failed with the following errors:

12:15:08.008 [testcontainers-ryuk] WARN org.testcontainers.utility.ResourceReaper - Can not connect to Ryuk at localhost:49153
java.net.ConnectException: Connection refused: connect
	at java.base/sun.nio.ch.Net.connect0(Native Method)
	at java.base/sun.nio.ch.Net.connect(Net.java:574)
	at java.base/sun.nio.ch.Net.connect(Net.java:563)
	at java.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:588)
	at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:333)
	at java.base/java.net.Socket.connect(Socket.java:648)
	at java.base/java.net.Socket.connect(Socket.java:597)
	at java.base/java.net.Socket.<init>(Socket.java:520)
	at java.base/java.net.Socket.<init>(Socket.java:294)
	at org.testcontainers.utility.ResourceReaper.lambda$null$1(ResourceReaper.java:133)
	at org.rnorth.ducttape.ratelimits.RateLimiter.doWhenReady(RateLimiter.java:27)
	at org.testcontainers.utility.ResourceReaper.lambda$start$2(ResourceReaper.java:131)
	at java.base/java.lang.Thread.run(Thread.java:832)
12:15:10.292 [testcontainers-ryuk] WARN org.testcontainers.utility.ResourceReaper - Can not connect to Ryuk at localhost:49153

When inspect the docker errors, I got the following info:

2020/11/02 04:05:47 Pinging Docker...

panic: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?


goroutine 1 [running]:

main.main()

/go/src/github.com/testcontainers/moby-ryuk/main.go:35 +0xcf5

I am sure docker is running, and I can run other docker commands in Powershell/cmd.

Issue Analytics

State:
Created 3 years ago
Comments:12 (2 by maintainers)

Top GitHub Comments

16reactions

bjmicommented, Feb 9, 2021

Unfortunately I encounter this problem too.

Windows 10 Docker Desktop 3.1.0 Test Container Version 1.15.1

17:20:36 I [      main]   o.t.DockerClientFactory : Connected to docker: 
  Server Version: 20.10.2
  API Version: 1.41
  Operating System: Docker Desktop
  Total Memory: 25520 MB
17:20:36 I [      main] .t.u.ImageNameSubstitutor : Image name substitution will be performed by: DefaultImageNameSubstitutor (composite of 'ConfigurationFileImageNameSubstitutor' and 'PrefixingImageNameSubstitutor')
17:20:39 W [iners-ryuk]      o.t.u.ResourceReaper : Can not connect to Ryuk at localhost:49154
java.net.ConnectException: Connection refused: connect

Ryuk’s container logs:

2021/01/20 16:20:37 Pinging Docker...
2021/01/20 16:20:37 Docker daemon is available!
2021/01/20 16:20:37 Starting on port 8080...
2021/01/20 16:20:37 Started!

Are there any solutions / workarounds so far?

Edit: I could solve it running netcfg -d described in https://github.com/testcontainers/testcontainers-java/issues/3609#issuecomment-756098790 Caution: netcfg -d Performs a cleanup on all networking devices. This will require a reboot. Edit2: https://github.com/docker/for-win/issues/3171 addresses this in Docker for Windows. powershell restart-service winnat helps temporarily as netcfg -d didn’t solve it permanently.

8reactions

naXa777commented, Mar 3, 2021

SOLUTION: after running netcfg -d from https://github.com/docker/for-win/issues/3171#issuecomment-731096674 and rebooting computer, testcontainers works again. Windows woodoo detected 👻