master flannel etcd port

[Daneyon Hansen]

This patch updated the ports used by etcd:

https://bugs.launchpad.net/magnum/+bug/1480025

By doing so, it introduced a bug where the flannel-config service does not start on the k8s master because by default the service uses port 4001 to communicate with etcd. Since etcd's port numbers have been updated, flannel-config uses the old 4001 port and is unable to start. This causes a domino effect of services being unable to start.

[Daneyon Hansen (danehans)]

Thisis the way the flannel-config serviec status should appear:

# systemctl status flannel-config -l
● flannel-config.service
   Loaded: loaded (/etc/systemd/system/flannel-config.service; enabled)
   Active: inactive (dead) since Sun 2015-08-16 23:08:11 UTC; 4min 11s ago
  Process: 846 ExecStart=/usr/local/bin/flannel-config (code=exited, status=0/SUCCESS)
 Main PID: 846 (code=exited, status=0/SUCCESS)

Aug 16 23:08:10 k8-ofvpt2rwhs-0-ebmgcm3x3vld-kube-master-gnaebagomz52.novalocal flannel-config[846]: creating flanneld config in etcd
Aug 16 23:08:11 k8-ofvpt2rwhs-0-ebmgcm3x3vld-kube-master-gnaebagomz52.novalocal systemd[1]: Started flannel-config.service.
Aug 16 23:08:11 k8-ofvpt2rwhs-0-ebmgcm3x3vld-kube-master-gnaebagomz52.novalocal flannel-config[846]: {"action":"set","node":{"key":"/coreos.com/network/config","value":"{\n \"Network\": \"10.100.0.0/16\",\n \"Subnetlen\": 24\n}\n","modifiedIndex":3,"createdIndex":3}}

[Daneyon Hansen (danehans)]

With the flannel-config service working as described above, this is what the flanneld service should looks like on a minion/node:

# systemctl status flanneld -l
● flanneld.service - Flanneld overlay address etcd agent
   Loaded: loaded (/usr/lib/systemd/system/flanneld.service; enabled)
  Drop-In: /etc/systemd/system/flanneld.service.d
           └─flannel-docker-bridge.conf
   Active: active (running) since Sun 2015-08-16 23:08:47 UTC; 6min ago
 Main PID: 842 (flanneld)
   CGroup: /system.slice/flanneld.service
           └─842 /usr/bin/flanneld -etcd-endpoints=http://10.0.0.3:2379 -etcd-prefix=/coreos.com/network

Aug 16 23:08:47 k8-2klur5bwnj-0-asbbgvtgo5cu-kube-minion-e4nyleq3wnny.novalocal flanneld[842]: I0816 23:08:47.645082 842 main.go:247] Installing signal handlers
Aug 16 23:08:47 k8-2klur5bwnj-0-asbbgvtgo5cu-kube-minion-e4nyleq3wnny.novalocal flanneld[842]: I0816 23:08:47.645105 842 main.go:118] Determining IP address of default interface
Aug 16 23:08:47 k8-2klur5bwnj-0-asbbgvtgo5cu-kube-minion-e4nyleq3wnny.novalocal flanneld[842]: I0816 23:08:47.645526 842 main.go:205] Using 10.0.0.6 as external interface
Aug 16 23:08:47 k8-2klur5bwnj-0-asbbgvtgo5cu-kube-minion-e4nyleq3wnny.novalocal flanneld[842]: I0816 23:08:47.646607 842 subnet.go:320] Picking subnet in range 10.100.1.0 ... 10.100.255.0
Aug 16 23:08:47 k8-2klur5bwnj-0-asbbgvtgo5cu-kube-minion-e4nyleq3wnny.novalocal flanneld[842]: I0816 23:08:47.684015 842 subnet.go:83] Subnet lease acquired: 10.100.75.0/24
Aug 16 23:08:47 k8-2klur5bwnj-0-asbbgvtgo5cu-kube-minion-e4nyleq3wnny.novalocal systemd[1]: Started Flanneld overlay address etcd agent.
Aug 16 23:08:47 k8-2klur5bwnj-0-asbbgvtgo5cu-kube-minion-e4nyleq3wnny.novalocal flanneld[842]: I0816 23:08:47.709945 842 main.go:215] UDP mode initialized
Aug 16 23:08:47 k8-2klur5bwnj-0-asbbgvtgo5cu-kube-minion-e4nyleq3wnny.novalocal flanneld[842]: I0816 23:08:47.709992 842 udp.go:239] Watching for new subnet leases

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/213364
Committed: https://git.openstack.org/cgit/openstack/magnum/commit/?id=5bd5a523068373df9e4e8278d4a1d9b774f65711
Submitter: Jenkins
Branch: master

commit 5bd5a523068373df9e4e8278d4a1d9b774f65711
Author: Daneyon Hansen <email address hidden>
Date: Fri Aug 14 21:57:25 2015 +0000

    Sets FLANNEL_ETCD to 127.0.0.1:2379

    This change sets FLANNEL_ETCD to 127.0.0.1:2379 in
    /etc/sysconfig/flanneld

    Closes-Bug: #1485133

    Change-Id: I0312b3670a6cc15e8dc60bb4509d429165469259