renovatebot/renovate

feat(datasource/aws-machine-image): add `hostType` authentication

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#42,987 opened on Apr 29, 2026

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help wanted

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Description

In at least a few occasions, we've had folks looking to understand how to set authentication for the aws-machine-image datasource.

Right now, it's only possible to set this through i.e. via AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY, which isn't ideal when using a widely shared deployment of Renovate, such as Mend-hosted Renovate.

We should surface this as something that can be set in the hostRules authentication.

This would then allow Mend-hosted users to specify this, as well as allowing opportunities for users within organisations to specify this i.e. across many accounts, or on a per-file basis.

[!WARNING] This should not override the default AWS credentials for initialising the client in other cases, only for the purpose of listing AWS Machine Image tags.

Contributor guide

Research direction
Study the existing aws machine image datasource code and understand how hostRules are used in other datasources (e.g., gitlab tags). Implement a new hostRules type for AWS and modify the AWS client initialization to use those credentials if provided, while preserving default credential chain fallback.
Tech stack
typescript
Domain
infrastructure
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
Renovate datasource architectureAWS SDK
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50