ping: : Name or service not known - while pinging a valid ip

Well, This appears to be a known issue to many but I've applied many of the workarounds I found online but none of them worked!

I'm running packer from a docker container to build an image on openstack. I could get the ip address of the instance but couldn't ping/ssh/execute ansible within packer provisioners.

All of them fail with this error:

openstack: ping: 172.30.16.165: Name or service not known

Funny thing is I could ping the same ip from other machines and the docker container executing packer. So, not sure why the packer provisioner couldn't do. DNS & network settings of the host & docker container are all same.

Also, I could connect to other floating ips on the same openstack tenant. I'm using floating-ip-network to assign to an external ip to connect to the instance at a later point.

{ "type": "shell", "expect_disconnect": "true", "inline": [ "echo Rebooting...", "sudo -u root /sbin/init 6" ] }, { "type": "shell", "pause_before": "60s", "inline": [ "echo waiting for 60s" ] }, { "type": "shell-local", "inline": [ "ping -c 4 $(cat /tmp/ipaddress)" ] }

I did add the ip to /etc/hosts file but it didn't fix the issue. If someone could help me with this, it would be really great.

Thanks in advance.

Know someone who can answer? Share a link to this question via email, Twitter, or Facebook.