I need help understanding my networking logs due to docker-compose networking.
I'm ssh'd into a VM, and I have two projects with docker-compose. The first is launched simply with docker-compose up. When I try to launch the second, my ssh session freezes, and I can no longer ssh into the VM. After lots of trial and error, and after reading this I tried to append to my 2nd project's docker-compose.yml file the following: networks: default: external: name: ffamfe_default where ffamfe_default is the name of the network created by docker-compose up of the 1st project. With this, the docker-compose up on the 2nd project doesn't kick me out of the ssh session.
I tailed the logs in /var/log/*.log, and here's the output with the networks section in the docker-compose.yml file (without the timestamp prefix: Jan 19 09:13:42 hostname kernel: [420096.305357]):
aufs au_opts_verify:1597:dockerd[13813]: dirperm1 breaks the protection by the permission bits on the lower branch device veth6a84537 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): veth6a84537: link is not ready eth0: renamed from veth2480623 IPv6: ADDRCONF(NETDEV_CHANGE): veth6a84537: link becomes ready br-fe0deb0149df: port 18(veth6a84537) entered forwarding state br-fe0deb0149df: port 18(veth6a84537) entered forwarding state aufs au_opts_verify:1597:dockerd[25317]: dirperm1 breaks the protection by the permission bits on the lower branch device veth1a3c1e3 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): veth1a3c1e3: link is not ready br-fe0deb0149df: port 22(veth1a3c1e3) entered forwarding state br-fe0deb0149df: port 22(veth1a3c1e3) entered forwarding state eth0: renamed from veth54e576d IPv6: ADDRCONF(NETDEV_CHANGE): veth1a3c1e3: link becomes ready br-fe0deb0149df: port 22(veth1a3c1e3) entered disabled state veth54e576d: renamed from eth0 br-fe0deb0149df: port 22(veth1a3c1e3) entered disabled state device veth1a3c1e3 left promiscuous mode br-fe0deb0149df: port 22(veth1a3c1e3) entered disabled state br-fe0deb0149df: port 18(veth6a84537) entered forwarding state
and here's the output without the networks section (i.e. when I get kicked out of the ssh session):
IPv6: ADDRCONF(NETDEV_UP): br-55349b03453a: link is not ready aufs au_opts_verify:1597:dockerd[26982]: dirperm1 breaks the protection by the permission bits on the lower branch aufs au_opts_verify:1597:dockerd[26982]: dirperm1 breaks the protection by the permission bits on the lower branch aufs au_opts_verify:1597:dockerd[3051]: dirperm1 breaks the protection by the permission bits on the lower branch device veth7a1bcde entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): veth7a1bcde: link is not ready br-55349b03453a: port 1(veth7a1bcde) entered forwarding state br-55349b03453a: port 1(veth7a1bcde) entered forwarding state br-55349b03453a: port 1(veth7a1bcde) entered disabled state eth0: renamed from veth5d8a2ea IPv6: ADDRCONF(NETDEV_CHANGE): veth7a1bcde: link becomes ready br-55349b03453a: port 1(veth7a1bcde) entered forwarding state br-55349b03453a: port 1(veth7a1bcde) entered forwarding state IPv6: ADDRCONF(NETDEV_CHANGE): br-55349b03453a: link becomes ready aufs au_opts_verify:1597:dockerd[13814]: dirperm1 breaks the protection by the permission bits on the lower branch aufs au_opts_verify:1597:dockerd[13814]: dirperm1 breaks the protection by the permission bits on the lower branch aufs au_opts_verify:1597:dockerd[13922]: dirperm1 breaks the protection by the permission bits on the lower branch device veth3253bd4 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): veth3253bd4: link is not ready br-55349b03453a: port 2(veth3253bd4) entered forwarding state br-55349b03453a: port 2(veth3253bd4) entered forwarding state br-55349b03453a: port 2(veth3253bd4) entered disabled state eth0: renamed from veth9c8aaa3 IPv6: ADDRCONF(NETDEV_CHANGE): veth3253bd4: link becomes ready br-55349b03453a: port 2(veth3253bd4) entered forwarding state br-55349b03453a: port 2(veth3253bd4) entered forwarding state br-55349b03453a: port 2(veth3253bd4) entered disabled state veth9c8aaa3: renamed from eth0 br-55349b03453a: port 2(veth3253bd4) entered disabled state device veth3253bd4 left promiscuous mode br-55349b03453a: port 2(veth3253bd4) entered disabled state br-55349b03453a: port 1(veth7a1bcde) entered forwarding state br-55349b03453a: port 1(veth7a1bcde) entered disabled state veth5d8a2ea: renamed from eth0 br-55349b03453a: port 1(veth7a1bcde) entered disabled state device veth7a1bcde left promiscuous mode br-55349b03453a: port 1(veth7a1bcde) entered disabled state
I don't really understand how to read these logs. Here is my ifconfig also. Can someone help me read the logs and figure out what the problem is?
Edit: bump
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