OpenShift Runtime: Difference between revisions

From NovaOrdis Knowledge Base
Jump to navigation Jump to search
No edit summary
Line 36: Line 36:


===master controller Daemon===
===master controller Daemon===
Unit: <tt>atomic-openshift-master-controllers.service</tt>
Unit File: <tt>/usr/lib/systemd/system/atomic-openshift-master-controllers.service</tt>
Working Directory: <tt>/var/lib/etcd</tt>
Configuration File: <tt>/etc/etcd/etcd.conf</tt>
Process:
<pre>
/usr/bin/etcd --name=master1.rdu20.internal --data-dir=/var/lib/etcd --listen-client-urls=https://192.199.0.199:2379
</pre>


===master api Daemon===
===master api Daemon===

Revision as of 20:40, 17 May 2017

Internal

Master Node

The master node runs, in order, these services:

The master daemon (or daemons) must be started after etcd is started, they depend on etcd. They are started before the node service.

etcd Daemon

Unit: etcd.service

Unit File: /usr/lib/systemd/system/etcd.service

Working Directory: /var/lib/etcd

Configuration File: /etc/etcd/etcd.conf

Process:

/usr/bin/etcd --name=master1.rdu20.internal --data-dir=/var/lib/etcd --listen-client-urls=https://192.199.0.199:2379

master Daemons

In a non-HA deployment, the master controller daemon and master api daemon and are coalesced in a single process. In HA environments, they are separated, so the master api daemon processes can be load-balanced among, while the master controller daemon run in an active/passive configuration, there is just one active master controller daemon instance in the cluster.

master controller Daemon

Unit: atomic-openshift-master-controllers.service

Unit File: /usr/lib/systemd/system/atomic-openshift-master-controllers.service

Working Directory: /var/lib/etcd

Configuration File: /etc/etcd/etcd.conf

Process:

/usr/bin/etcd --name=master1.rdu20.internal --data-dir=/var/lib/etcd --listen-client-urls=https://192.199.0.199:2379

master api Daemon

Regular Node

node Daemon