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David Young committed 2017-12-12 21:22:27 +13:00
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manuscript/ha-docker-swarm/keepalived.md
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@@ -68,3 +68,6 @@ That's it. Each node will talk to the other via unicast (no need to un-firewall
1. Some hosting platforms (OpenStack, for one) won't allow you to simply "claim" a virtual IP. Each node is only able to receive traffic targetted to its unique IP. In this case, keepalived is not the right solution, and a platform-specific load-balancing solution should be used. In OpenStack, this is Neutron's "Load Balancer As A Service" (LBAAS) component. AWS and Azure would likely include similar protections.
2. More than 2 nodes can participate in keepalived. Simply ensure that each node has the appropriate priority set, and the node with the highest priority will become the master.
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