Cockroach simulator v.035/15/2023 ![]() This will create an entry in the docker instance /etc/hosts file, which has precedence over DNS lookups (this will become very important in a bit!)Ĭreate the haproxy.cfg files for the HAProxy in each region.Ĭat - >data/us-east4/haproxy.cfg data/us-west2/haproxy.cfg data/eu-west2/haproxy.cfg << EOF We also specify the node IP address with the -ip flag and the IP addresses of all nodes in its region using the -add-host flag. ![]() region eu-west2 hosts nodes roach-london-1|2|3.Ĭonfigure Your Simulated Multi-Region Cockroach Setup with Dockerįirst, you'll need to create the required networks.region us-east4 hosts nodes roach-newyork-1|2|3.region us-west2 hosts nodes roach-seattle-1|2|3.The instructions assume you are running Linux or macOS, although it should work on Windows using Cygwin, and have Docker installed.īelow is the high level architecture diagram. Here are the instructions to simulate the deployment of a 9 nodes CockroachDB cluster across 3 regions on localhost using Docker. Today's blog post is a tutorial by Cockroach Labs enterprise architect Fabio Ghirardello on how to simulate a multi-region CockroachDB cluster on localhost. It's an easy process that you can perform directly on localhost using Docker. ![]() Simulating a CockroachDB cluster can be an incredibly useful tool for testing, training, and development work.
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