haalcala/aws-eks-mattermost-env-setup: mattermost-env-setup-stage-1/mattermost-env-setup.go; 5 LoC

Found a possible issue in [haalcala/aws-eks-mattermost-env-setup](https://www.github.com/haalcala/aws-eks-mattermost-env-setup) at [mattermost-env-setup-stage-1/mattermost-env-setup.go](https://github.com/haalcala/aws-eks-mattermost-env-setup/blob/15a63473465fb0fb8cbf05a7a9f8e997e30ecbf7/mattermost-env-setup-stage-1/mattermost-env-setup.go#L506-L510)

Below is the message reported by the analyzer for this snippet of code. Beware that the analyzer only reports the first issue it finds, so please do not limit your consideration to the contents of the below message.

> reference to _dbInstance is reassigned at line 508

[Click here to see the code in its original context.](https://github.com/haalcala/aws-eks-mattermost-env-setup/blob/15a63473465fb0fb8cbf05a7a9f8e997e30ecbf7/mattermost-env-setup-stage-1/mattermost-env-setup.go#L506-L510)

Click here to show the 5 line(s) of Go which triggered the analyzer.

```go
for _, _dbInstance := range describeDbInstancesResponse.DBInstances {
if _dbInstance.DBInstanceIdentifier == DB_INSTANCE_ID {
dbInstance = &_dbInstance
}
}

```

Leave a reaction on this issue to contribute to the project by classifying this instance as a **Bug** :-1:, **Mitigated** :+1:, or **Desirable Behavior** :rocket:
See the descriptions of the classifications [here](https://github.com/github-vet/rangeclosure-findings#how-can-i-help) for more information.

commit ID: 15a63473465fb0fb8cbf05a7a9f8e997e30ecbf7

Open mattermost-env-setup-stage-1/mattermost-env-setup.go around lines 506-510 and inspect the range loop in its original context. Compare the analyzer's warning about _dbInstance with the linked repository code, then classify the finding by leaving the requested Bug, Mitigated, or Desirable Behavior reaction.

Written by the indexing model from the issue text.