Connecting clusters

To think that all of our services are going to reside within a single data center might have worked 20 years ago when I started writing this book (so it seems). The world has truly evolved to a continuously connected mobile environment, although some might argue that this was actually devolution. Regardless, the only way to really maintain the communications among our services in this world is to ensure that their availability and location can be discovered from multiple geographic areas. Whether I'm in Boston, Berlin, or Melbourne, the applications and services I've grown to rely on must be available! All that we have done within this chapter has led us to this point!

Throughout the book, we've been talking a lot about gossiping and pools, and we're going to continue that discussion. However, as you can imagine, the amount of data that we have communicated within a single Consul cluster can be quite extensive, especially as we onboard all...