Automated multi-network failover for data centers

A non-transitory computer-readable medium storing instructions, the instructions comprising:

• one or more instructions that, when executed by one or more processors, cause the one or more processors to:
• determine, for a first data center of a group of data centers, that a condition associated with causing a failover from the first data center to a second data center, of the group of data centers, is satisfied,
• the first data center, of the group of data centers, being associated with receiving network traffic from a plurality of networks;
• cause a domain name server (DNS) configuration, associated with an external DNS, to be altered to cause a first plurality of devices, of a first network of the plurality of networks, to route a first portion of the network traffic to the second data center of the group of data centers,
• the external DNS being external to the group of data centers;
• cause a set of DNS entries, associated with an internal DNS, to be altered to cause a second plurality of devices, of a second network of the plurality of networks, to route a second portion of the network traffic to the second data center of the group of data centers,
• the internal DNS being internal to the group of data centers;
• cause a load balancer configuration, associated with a load balancer of the first data center, to be altered to cause a third portion of the network traffic, associated with a third plurality of devices, of a third network of the plurality of networks, to be redirected from the first data center to the second data center;
• and
• determine whether the failover is successful based on testing the internal DNS and receiving a response from the internal DNS and based on determining whether the network traffic is being routed to the second data center.

A method, comprising:

• monitoring, by a device, a status of a first data center of a group of data centers,
• the first data center, of the group of data centers, being associated with receiving network traffic from a plurality of devices of a plurality of networks;
• determining, by the device and based on the status of the first data center, to cause a failover from the first data center, of the group of data centers, to a second data center of the group of data centers;
• causing, by the device, a domain name server (DNS) configuration, associated with an external DNS, to be altered to cause a first plurality of devices, of a first network of the plurality of networks, to route a first portion of the network traffic to the second data center of the group of data centers,
• the external DNS being external to the group of data centers;
• causing, by the device, a set of DNS entries, associated with an internal DNS, to be altered to cause a second plurality of devices, of a second network of the plurality of networks, to route a second portion of the network traffic to the second data center of the group of data centers, the internal DNS being internal to the group of data centers;
• causing, by the device, a load balancer configuration, associated with a load balancer of the first data center, to be altered to cause a third portion of the network traffic, associated with a third plurality of devices, of a third network of the plurality of networks, to be redirected from the first data center to the second data center;
• and
• determining, by the device, whether the failover is successful based on testing the internal DNS and receiving a response from the internal DNS and based on determining whether the network traffic is being routed to the second data center.