Once VPC and subnets have been configured, all instances to host Fluid Topics environments must be created.
Instance creation must respect the following requirements:
- One instance for each server hosting one or more Fluid Topics environments:
- Example: one instance for the server hosting the Back Office environment, one instance for the server hosting the Indexer environment. However, if the Back Office and the Indexer environments are hosted on the same server, one instance will suffice for both environments.
- If each environment is hosted by one server, at least 7 instances are needed. The number and disposition of environments on instances are the responsibility of the customer.
- If one or more environments on an instance needs to be assigned the Public Security Group, this setting will prevail.
- Example: if the Back Office environment (which needs to be accessed and thus needs to be set in the Public Security Group) and the Indexer environment (which does not need to be accessed and thus is set in the Private Security Group) are embedded in the same instance, this BO-IDX instance must be set in the Public Security Group.
- Each instance must be created separately, even if some steps are identical, because each
instance must have some unique parameters: public IP, security group, etc.
- Example: for three MongoDB instances, you need to follow the steps to create the mong01 instance, then follow the steps again to create mong02, then follow the steps again to create mong03.
Note: IP addresses and server hostnames in the documentation are given as an example and are ultimately the responsibility of the customer.
Tip: An Instance Creation Plan is available to summarize all necessary steps for each FT environment. We recommend you to print this plan to help you during the procedure.