Landrush and docker

[ianmiell]

I seem to be seeing issues using landrush when installing docker on guests.

No landrush - OK:

Vagrant.configure("2") do |config|
  #config.landrush.enabled = true
  config.vm.provider "virtualbox" do |vb|
    vb.gui = false
    vb.memory = "1024"
  end

  config.vm.define "swarm1" do |swarm1|
    swarm1.vm.box = "centos/7"
    swarm1.vm.hostname = "swarm1.vagrant.test"
  end
end

[root@swarm1 ~]# systemctl start docker
[root@swarm1 ~]# docker run -d alpine
Unable to find image 'alpine:latest' locally
Trying to pull repository docker.io/library/alpine ... 
latest: Pulling from docker.io/library/alpine
3690ec4760f9: Pull complete 
Digest: sha256:1354db23ff5478120c980eca1611a51c9f2b88b61f24283ee8200bf9a54f2e5c
Status: Downloaded newer image for docker.io/alpine:latest

Landrush - fails:

Vagrant.configure("2") do |config|
  config.landrush.enabled = true
  config.vm.provider "virtualbox" do |vb|
    vb.gui = false
    vb.memory = "1024"
  end

  config.vm.define "swarm1" do |swarm1|
    swarm1.vm.box = "centos/7"
    swarm1.vm.hostname = "swarm1.vagrant.test"
  end
end

[root@swarm1 ~]# systemctl start docker
[root@swarm1 ~]# docker run -d alpine
Unable to find image 'alpine:latest' locally
Trying to pull repository docker.io/library/alpine ... 
Get https://registry-1.docker.io/v2/library/alpine/manifests/latest: Get https://auth.docker.io/token?scope=repository%!A(MISSING)library%!F(MISSING)alpine%!A(MISSING)pull&service=registry.docker.io: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
docker: Get https://registry-1.docker.io/v2/library/alpine/manifests/latest: Get https://auth.docker.io/token?scope=repository%3Alibrary%2Falpine%3Apull&service=registry.docker.io: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers).
See '/usr/bin/docker-current run --help'.

[root@swarm1 ~]# docker run -d alpine
Unable to find image 'alpine:latest' locally
Trying to pull repository docker.io/library/alpine ... 
latest: Pulling from docker.io/library/alpine
3690ec4760f9: Pulling fs layer 
Get https://registry-1.docker.io/v2/library/alpine/blobs/sha256:baa5d63471ead618ff91ddfacf1e2c81bf0612bfeb1daf00eb0843a41fbfade3: dial tcp: lookup registry-1.docker.io on 10.0.2.2:53: no such host
docker: Get https://registry-1.docker.io/v2/library/alpine/blobs/sha256:baa5d63471ead618ff91ddfacf1e2c81bf0612bfeb1daf00eb0843a41fbfade3: dial tcp: lookup registry-1.docker.io on 10.0.2.2:53: no such host.
See '/usr/bin/docker-current run --help'.

Interestingly, I get different errors - dial tcp sometimes, sometimes parts download (as per above). Sometimes, restarting docker can 'help' get a layer or two before it fails again.

I tried, per the troubleshooting steps:

[root@swarm1 ~]# ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=63 time=5.98 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=63 time=6.06 ms

I did a bit of googling and it looks like similar issues are seen with Docker on Mac, but pretty quickly I'm out of my comfort zone.

I'm using Linux and Virtualbox.

[ianmiell]

Tried on Mac and got same result:

[root@swarm1 ~]# docker pull swarm
Using default tag: latest
Trying to pull repository docker.io/library/swarm ... 
latest: Pulling from docker.io/library/swarm
220609e0bc51: Pulling fs layer 
b54bf338fe2f: Pulling fs layer 
d53aac5750d5: Pulling fs layer 
Get https://registry-1.docker.io/v2/library/swarm/blobs/sha256:942fd5fd357e2fe2fcecbaf3dd77c313f22ce18a84a5a4d288c0df407a61e623: dial tcp: lookup registry-1.docker.io on 10.0.2.3:53: no such host
Get https://registry-1.docker.io/v2/library/swarm/blobs/sha256:942fd5fd357e2fe2fcecbaf3dd77c313f22ce18a84a5a4d288c0df407a61e623: dial tcp: lookup registry-1.docker.io on 10.0.2.3:53: no such host

[Bekt]

Try disabling the DNS server on the guest:

config.landrush.guest_redirect_dns = false

[ianmiell]

Thanks - tried this but it did not work for me. Apologies I didn't retain the details. I ended up resolving with this code:

            # Workaround for docker networking issues + landrush.                                                                                                    
            shutit.send('''echo "$(host -t A index.docker.io | grep has.address | head -1 | awk '{print $NF}') index.docker.io" >> /etc/hosts''')                    
            shutit.send('''echo "$(host -t A registry-1.docker.io | grep has.address | head -1 | awk '{print $NF}') registry-1.docker.io" >> /etc/hosts''')  

[hferentschik]

@ianmiell, still an issue?