Estou tentando definir o docker para conectar todos os contêineres à minha própria ponte criada manualmente (br0) , não quero que o docker crie ou edite nada na minha ponte, porque tenho outros serviços que usa e depende da minha ponte (como o OpenVPN), portanto, eu prefiro criar a ponte usando o meu próprio script bash.
O problema surge quando inicio o serviço docker, docker altera o endereço IP da minha bridge do que eu quero (192.168.1.10) para outro endereço (169.254.xx) !!!
Minha versão do Docker 1.12.1, compilação 23cf638
sudo brctl addbr br0
sudo brctl addif br0 eth0
sudo ip addr del 192.168.1.10/24 dev eth0
sudo ip addr add 192.168.1.10/24 dev br0
sudo ip route add default via 192.168.1.1 dev br0
Eu também excluí o padrão docker0 brdige.
Passando o parâmetro -b br0 para dockerd.service iniciando script para informar ao docker que eu quero que ele use minha br0:
sudo vi /etc/systemd/system/docker.service.d/overlay.conf
Editei o ExecStart para ser assim:
ExecStart=/usr/bin/dockerd --storage-driver=overlay -H fd:// -b=br0
e depois:
sudo systemctl daemon-reload
sudo systemctl restart docker
E agora, quando eu verifico o meu br0 IP, NÃO é mais 192.168.1.10, ele volta para 172.17.xx , e quando tento alterá-lo agora manualmente de volta para 192.168.1.10 , as interfaces em containers continuam usando 169.254.xx ao invés do IP que eu quero.
p. quando eu verificar onde estão as interfaces dos meus contêineres: brctl show , eles estão realmente no meu br0 (isso significa que o docker aceitou o parâmetro -b br0, mas apenas ignora ou substitui o meu endereço IP pretendido).
Eu só quero que o docker use minha br0 com o endereço IP pretendido 192.168.1.10.
Minha necessidade é que todos os meus contêineres recebam um endereço IP no intervalo desejado. Agradecemos antecipadamente.
Oct 10 20:41:12 raspberrypi systemd[1]: Stopping Docker Application Container Engine...
Oct 10 20:41:12 raspberrypi dockerd[976]: time="2016-10-10T20:41:12.067551389Z" level=info msg="Processing signal 'terminated'"
Oct 10 20:41:12 raspberrypi dockerd[976]: time="2016-10-10T20:41:12.128388194Z" level=info msg="stopping containerd after receiving terminated"
Oct 10 20:41:13 raspberrypi systemd[1]: Stopped Docker Application Container Engine.
Oct 10 20:41:13 raspberrypi systemd[1]: Stopping Docker Socket for the API.
Oct 10 20:41:13 raspberrypi systemd[1]: Closed Docker Socket for the API.
Oct 10 20:41:13 raspberrypi systemd[1]: Stopped Docker Application Container Engine.
Oct 10 20:41:50 raspberrypi avahi-daemon[440]: Withdrawing address record for 169.254.124.135 on br0.
Oct 10 20:41:50 raspberrypi dhcpcd[698]: br0: removing IP address 169.254.124.135/16
Oct 10 20:41:50 raspberrypi avahi-daemon[440]: Leaving mDNS multicast group on interface br0.IPv4 with address 169.254.124.135.
Oct 10 20:41:50 raspberrypi avahi-daemon[440]: Interface br0.IPv4 no longer relevant for mDNS.
Oct 10 20:41:50 raspberrypi dhcpcd[698]: br0: deleting route to 169.254.0.0/16
Oct 10 20:41:52 raspberrypi ntpd[723]: Deleting interface #7 br0, 169.254.124.135#123, interface stats: received=0, sent=0, dropped=0, active_time=516 secs
Oct 10 20:41:52 raspberrypi ntpd[723]: peers refreshed
Oct 10 20:42:58 raspberrypi avahi-daemon[440]: Joining mDNS multicast group on interface br0.IPv4 with address 192.168.1.19.
Oct 10 20:42:58 raspberrypi avahi-daemon[440]: New relevant interface br0.IPv4 for mDNS.
Oct 10 20:42:58 raspberrypi avahi-daemon[440]: Registering new address record for 192.168.1.19 on br0.IPv4.
Oct 10 20:43:00 raspberrypi ntpd[723]: Listen normally on 8 br0 192.168.1.19 UDP 123
Oct 10 20:43:00 raspberrypi ntpd[723]: peers refreshed
Oct 10 20:43:15 raspberrypi systemd[1]: [email protected] has no holdoff time, scheduling restart.
Oct 10 20:43:15 raspberrypi systemd[1]: Stopping Getty on tty1...
Oct 10 20:43:15 raspberrypi systemd[1]: Starting Getty on tty1...
Oct 10 20:43:15 raspberrypi systemd[1]: Started Getty on tty1.
Oct 10 20:43:21 raspberrypi systemd[1]: [email protected] has no holdoff time, scheduling restart.
Oct 10 20:43:21 raspberrypi systemd[1]: Stopping Getty on tty1...
Oct 10 20:43:21 raspberrypi systemd[1]: Starting Getty on tty1...
Oct 10 20:43:21 raspberrypi systemd[1]: Started Getty on tty1.
Oct 10 20:44:31 raspberrypi systemd[1]: Starting Docker Socket for the API.
Oct 10 20:44:31 raspberrypi systemd[1]: Listening on Docker Socket for the API.
Oct 10 20:44:31 raspberrypi systemd[1]: Starting Docker Application Container Engine...
Oct 10 20:44:31 raspberrypi dockerd[1536]: time="2016-10-10T20:44:31.887581128Z" level=info msg="libcontainerd: new containerd process, pid: 1543"
Oct 10 20:44:32 raspberrypi dockerd[1536]: time="2016-10-10T20:44:32.903109872Z" level=info msg="[graphdriver] using prior storage driver \"overlay\""
Oct 10 20:44:32 raspberrypi dockerd[1536]: time="2016-10-10T20:44:32.950908429Z" level=info msg="Graph migration to content-addressability took 0.00 seconds"
Oct 10 20:44:32 raspberrypi dockerd[1536]: time="2016-10-10T20:44:32.951611338Z" level=warning msg="Your kernel does not support swap memory limit."
Oct 10 20:44:32 raspberrypi dockerd[1536]: time="2016-10-10T20:44:32.951800086Z" level=warning msg="Your kernel does not support kernel memory limit."
Oct 10 20:44:32 raspberrypi dockerd[1536]: time="2016-10-10T20:44:32.951906179Z" level=warning msg="Your kernel does not support cgroup cfs period"
Oct 10 20:44:32 raspberrypi dockerd[1536]: time="2016-10-10T20:44:32.951993522Z" level=warning msg="Your kernel does not support cgroup cfs quotas"
Oct 10 20:44:32 raspberrypi dockerd[1536]: time="2016-10-10T20:44:32.952173520Z" level=warning msg="Unable to find cpuset cgroup in mounts"
Oct 10 20:44:32 raspberrypi dockerd[1536]: time="2016-10-10T20:44:32.952372059Z" level=warning msg="mountpoint for pids not found"
Oct 10 20:44:32 raspberrypi dockerd[1536]: time="2016-10-10T20:44:32.953406319Z" level=info msg="Loading containers: start."
Oct 10 20:44:32 raspberrypi dockerd[1536]: time="2016-10-10T20:44:32.970612440Z" level=info msg="Firewalld running: false"
Oct 10 20:44:32 raspberrypi dockerd[1536]: time="2016-10-10T20:44:32.953406319Z" level=info msg="Loading containers: start."
Oct 10 20:44:32 raspberrypi dockerd[1536]: time="2016-10-10T20:44:32.970612440Z" level=info msg="Firewalld running: false"
Oct 10 20:44:33 raspberrypi avahi-daemon[440]: Withdrawing address record for 192.168.1.19 on br0.
Oct 10 20:44:33 raspberrypi avahi-daemon[440]: Leaving mDNS multicast group on interface br0.IPv4 with address 192.168.1.19.
Oct 10 20:44:33 raspberrypi avahi-daemon[440]: Interface br0.IPv4 no longer relevant for mDNS.
Oct 10 20:44:33 raspberrypi avahi-daemon[440]: Joining mDNS multicast group on interface br0.IPv4 with address 169.254.124.135.
Oct 10 20:44:33 raspberrypi avahi-daemon[440]: New relevant interface br0.IPv4 for mDNS.
Oct 10 20:44:33 raspberrypi avahi-daemon[440]: Registering new address record for 169.254.124.135 on br0.IPv4.
Oct 10 20:44:33 raspberrypi dockerd[1536]: time="2016-10-10T20:44:33.715576231Z" level=info msg="Loading containers: done."
Oct 10 20:44:33 raspberrypi dockerd[1536]: time="2016-10-10T20:44:33.715837582Z" level=info msg="Daemon has completed initialization"
Oct 10 20:44:33 raspberrypi dockerd[1536]: time="2016-10-10T20:44:33.715921435Z" level=info msg="Docker daemon" commit=23cf638 graphdriver=overlay version=1.12.1
Oct 10 20:44:33 raspberrypi systemd[1]: Started Docker Application Container Engine.
Oct 10 20:44:33 raspberrypi dockerd[1536]: time="2016-10-10T20:44:33.754984356Z" level=info msg="API listen on /var/run/docker.sock"
Oct 10 20:44:34 raspberrypi ntpd[723]: Listen normally on 9 br0 169.254.124.135 UDP 123
Oct 10 20:44:34 raspberrypi ntpd[723]: Deleting interface #8 br0, 192.168.1.19#123, interface stats: received=0, sent=0, dropped=0, active_time=94 secs
Oct 10 20:44:34 raspberrypi ntpd[723]: peers refreshed
A parte interessante é a última parte (eu a copiei aqui abaixo):
Oct 10 20:44:33 raspberrypi avahi-daemon[440]: Withdrawing address record for 192.168.1.19 on br0.
Oct 10 20:44:33 raspberrypi avahi-daemon[440]: Leaving mDNS multicast group on interface br0.IPv4 with address 192.168.1.19.
Oct 10 20:44:33 raspberrypi avahi-daemon[440]: Interface br0.IPv4 no longer relevant for mDNS.
Oct 10 20:44:33 raspberrypi avahi-daemon[440]: Joining mDNS multicast group on interface br0.IPv4 with address 169.254.124.135.
Oct 10 20:44:33 raspberrypi avahi-daemon[440]: New relevant interface br0.IPv4 for mDNS.
Oct 10 20:44:33 raspberrypi avahi-daemon[440]: Registering new address record for 169.254.124.135 on br0.IPv4.
Oct 10 20:44:33 raspberrypi dockerd[1536]: time="2016-10-10T20:44:33.715576231Z" level=info msg="Loading containers: done."
Oct 10 20:44:33 raspberrypi dockerd[1536]: time="2016-10-10T20:44:33.715837582Z" level=info msg="Daemon has completed initialization"
Oct 10 20:44:33 raspberrypi dockerd[1536]: time="2016-10-10T20:44:33.715921435Z" level=info msg="Docker daemon" commit=23cf638 graphdriver=overlay version=1.12.1
Oct 10 20:44:33 raspberrypi systemd[1]: Started Docker Application Container Engine.
Oct 10 20:44:33 raspberrypi dockerd[1536]: time="2016-10-10T20:44:33.754984356Z" level=info msg="API listen on /var/run/docker.sock"
Oct 10 20:44:34 raspberrypi ntpd[723]: Listen normally on 9 br0 169.254.124.135 UDP 123
Oct 10 20:44:34 raspberrypi ntpd[723]: Deleting interface #8 br0, 192.168.1.19#123, interface stats: received=0, sent=0, dropped=0, active_time=94
Seu Docker está iniciando um cliente DHCP na interface br0 , o que faz com que ele tente buscar um endereço IP para a interface. Isso é indicado pelo endereço IP 169.254.x.x , que é o endereço IP de autoconfiguração usado pelo DHCP.
Você precisa verificar seus arquivos de configuração para que o DHCP seja desativado.
No meu caso
- eu desinstalei o avahi-daemon
- Eu desinstalei o connman (vi um erro no /var/log/daemon.log) e o network-manager
Após a reinicialização (talvez não seja necessário), o 169.254.x.x-Address não foi mais atribuído e eu pude trabalhar novamente
(verifique o tail -f daemon.log ao iniciar o recipiente!)