Hi,
I have installed controller-0 and bootstrap was failed at 'Download images and push to local registry'.
I noticed that, dns resolution is failing in the controller but not in the host.
controller-0:~$ dig
docker.io; <<>> DiG 9.9.4-RedHat-9.9.4-72.el7 <<>>
docker.io;; global options: +cmd
;; connection timed out; no servers could be reached
controller-0:~$ ping
quay.ioPING
quay.io (3.233.133.41) 56(84) bytes of data.
---
quay.io ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2054ms
I can ping from the controller.
I have added following entries to iptables but no luck.
sudo iptables -A OUTPUT -p udp -d 8.8.4.4,8.8.8.8 --dport 53 -m state --state NEW,ESTABLISHED -j ACCEPT
sudo iptables -A INPUT -p udp -s 8.8.4.4,8.8.8.8 --sport 53 -m state --state ESTABLISHED -j ACCEPT
sudo iptables -A OUTPUT -p tcp -d 8.8.4.4,8.8.8.8 --dport 53 -m state --state NEW,ESTABLISHED -j ACCEPT
sudo iptables -A INPUT -p tcp -s 8.8.4.4,8.8.8.8 --sport 53 -m state --state ESTABLISHED -j ACCEPT
I am not sure if my network configuration is correct.
Following is my local routing configuration and host IP is 192.168.10.100.
$ ip route list
default via 192.168.172.3 dev eno1 proto static metric 100
10.10.10.0/24 dev stxbr1 proto kernel scope link src 10.10.10.1
192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1
192.168.10.0/24 dev eno1 proto kernel scope link src 192.168.10.100 metric 100