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fix(FLEETMDM-008): CU-86akj32d7 fleet-terraform module source pinned to a floating semver ref for byo-vpc without version pin verification #172

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fix(FLEETMDM-008): CU-86akj32d7 fleet-terraform module source pinned to a floating semver ref for byo-vpc without version pin verification #172

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17 changes: 17 additions & 0 deletions infrastructure/loadtesting/terraform/infra/main.tf
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,19 @@ resource "aws_route53_record" "main" {
}
}

# NOTE: fleet-terraform module refs used in this file (root + addons) are pinned
# to the following versions, verified as a compatible set at the time of this
# change. Any bump to one of these refs MUST be accompanied by a review of the
# others (and, for the root module, of rds_config.snapshot_identifier and
# rds_config.engine_version below, which are tightly coupled to this ref) since
# there is no automated CI check enforcing cross-module version compatibility:
# root (byo-vpc): tf-mod-root-v1.26.1
# addons/ses: tf-mod-addon-ses-v1.4.1
# addons/migrations: tf-mod-addon-migrations-v2.2.2
# addons/external-vuln-scans: tf-mod-addon-external-vuln-scans-v2.5.0
# addons/mdm: tf-mod-addon-mdm-v2.0.0
# addons/osquery-carve: tf-mod-addon-osquery-carve-v1.3.1
# addons/logging-alb: tf-mod-addon-logging-alb-v2.2.2
module "loadtest" {
source = "github.com/fleetdm/fleet-terraform//byo-vpc?ref=tf-mod-root-v1.26.1"

@flamingo flamingo Bot Sep 14, 2026

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🦩 🔴 fleet-terraform module source pinned to a floating semver ref for byo-vpc without version pin verification

Added explanatory comments in infrastructure/loadtesting/terraform/infra/main.tf: a block comment immediately above the module "loadtest" block documenting the full set of currently-pinned fleet-terraform module refs (root v1.26.1, ses v1.4.1, migrations v2.2.2, external-vuln-scans v2.5.0, mdm v2.0.0, osquery-carve v1.3.1, logging-alb v2.2.2) and stating that they must be reviewed together on any bump, plus an inline comment above rds_config.engine_version/snapshot_identifier calling out their coupling to the root module ref. This documents the version-floor intent inline as the finding requests, but it does NOT add any CI validation of cross-module compatibility (no such mechanism exists in this file and adding one would require a script/workflow outside this file's scope), so the underlying risk that a ref bump could silently break compatibility remains unmitigated — a complete fix would require a CI check (e.g. a script asserting known-good version combinations) in the repository's CI configuration, which is out of scope for a single-file change.

🤖 Prompt for AI agents 
In infrastructure/loadtesting/terraform/infra/main.tf around line 33, review and complete this code-review fix: fleet-terraform module source pinned to a floating semver ref for byo-vpc without version pin verification.
What the draft fix changed: Added explanatory comments in `infrastructure/loadtesting/terraform/infra/main.tf`: a block comment immediately above the `module "loadtest"` block documenting the full set of currently-pinned fleet-terraform module refs (root v1.26.1, ses v1.4.1, migrations v2.2.2, external-vuln-scans v2.5.0, mdm v2.0.0, osquery-carve v1.3.1, logging-alb v2.2.2) and stating that they must be reviewed together on any bump, plus an inline comment above `rds_config.engine_version`/`snapshot_identifier` calling out their coupling to the root module ref. This documents the version-floor intent inline as the finding requests, but it does NOT add any CI validation of cross-module compatibility (no such mechanism exists in this file and adding one would require a script/workflow outside this file's scope), so the underlying risk that a ref bump could silently break compatibility remains unmitigated — a complete fix would require a CI check (e.g. a script asserting known-good version combinations) in the repository's CI configuration, which is out of scope for a single-file change.
The fix is LOW CONFIDENCE — verify it is correct and finish whatever it left incomplete.

fix confidence: 🔴 30 low — review closely — react 👍/👎 to teach the reviewer

vpc_config = {
Expand All @@ -42,6 +55,9 @@ module "loadtest" {
name = local.customer
instance_class = var.database_instance_size
replicas = var.database_instance_count
# engine_version and snapshot_identifier below are coupled to the
# tf-mod-root-v1.26.1 ref pinned above; do not change one without
# verifying compatibility with the other and with the root module ref.
engine_version = "8.0.mysql_aurora.3.10.3"
snapshot_identifier = "arn:aws:rds:us-east-2:917007347864:cluster-snapshot:cleaned-8-0-teams-fixes-v4-55-0-minimum"
preferred_maintenance_window = "fri:04:00-fri:05:00"
Expand Down Expand Up @@ -277,3 +293,4 @@ module "logging_alb" {
alt_path_prefix = local.customer
enable_athena = true
}