Merge pull request #338 from currite/crux-remove-cluster

clustering: remove

1 files changed, 76 insertions, 0 deletions

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+.. _clustering:
+
+Clustering
+==========
+
+The cluster feature allows 2 vyos routers to share IP addresses and various services.
+
+VyOS supports multicast clustering.
+
+.. note::
+  Please follow the process of the cluster function here. https://phabricator.vyos.net/T985
+
+
+General cluster configuration
+-----------------------------
+
+In the general cluster configuration the network interfaces used for monitoring and negotiation of the cluster health is defined.
+Additionally, the communication interval settings, multicast group (for sending/receiving heartbeat messages), and pre-shared secret used in this monitoring is defined.
+
+.. code-block:: none
+
+  vyos@vyos# set cluster
+  Possible completions:
+    dead-interval            Interval after which a node is considered dead after missing heartbeats (milliseconds)
+  +> group                   Name of resource group for clustering [REQUIRED]
+  +  interface               Interface(s) for sending/receiving heartbeat packets [REQUIRED]
+    keepalive-interval       Time interval between heartbeat packets (milliseconds)
+    mcast-group              Multicast group for sending/receiving heartbeat packets
+    monitor-dead-interval    Interval after which a monitor node is considered dead (milliseconds)
+    pre-shared-secret        Pre-shared secret for authentication between cluster nodes [REQUIRED]
+
+Cluster group configuration
+---------------------------
+
+For the cluster group configuration, the group name must be defined before the groups configuration can be set (See Example below).
+After the group name is defined, the specific service to be clustered between primary and secondary nodes is configured.
+
+.. code-block:: none
+
+  vyos@vyos# set cluster group GROUPNAME
+  Possible completions:
+    auto-failback        Fail back to primary node if it recovers from failure
+  +  monitor             IP address(es) for monitoring connectivity
+    primary              Host name of the primary node [REQUIRED]
+  +  secondary           Host name(s) of the secondary node(s) [REQUIRED]
+  +  service             IP address(es) or service name(s) in this resource group [REQUIRED]
+
+Review cluster status
+---------------------
+
+.. code-block:: none
+
+  vyos@vyos:~$ show cluster status
+
+
+Example
+-------
+
+In the example below SSH is clustered between two nodes.
+
+.. code-block:: none
+
+  cluster {
+      dead-interval 20000
+      group cluster {
+          auto-failback false
+          primary node1
+          secondary node2
+          service ssh
+          service 192.168.0.123/24/eth0
+      }
+      interface eth0
+      keepalive-interval 5000
+      monitor-dead-interval 20000
+      pre-shared-secret S3cr#t
+  }
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