ignore drift in rds.Cluster and rds.Instance due to engine_version diff arising out of automanaged upgrades #1514
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Description of your changes
Fixes #1504
RDS DB
Cluster
andInstance
resources configured withautoMinorVersionUpgrade: true
will have RDS managed service upgrade the DB cluster/instances automatically to new available minor/patch versions during the configured preferred maintenance window. the provider-upjet-aws-rds controller currently, detects this auto version upgrade as a drift from the desired spec (if the spec.forProvider.engineVersion is specified in the resource spec) and ends up doing an endless diff and update cycle, resulting in exhaustion of the RDS API calls quota. AWS RDS doesn't allow engine version downgrades. So the update calls keep getting returned with error.This change customizes the terraform InstanceDiff for
Cluster
andInstance
rds resources to account for the above automanaged upgrades by ignoring the engine version diff, if the desired spec version is lower than the external's actual version.I have:
make reviewable
to ensure this PR is ready for review.[ ] Addedbackport release-x.y
labels to auto-backport this PR if necessary.How has this code been tested
Cluster.rds.aws.upbound.io
managed resource withspec.forProvider.engine_version: 8.0.mysql_aurora.3.06.1
withautoMinorVersionUpgrade: true
8.0.mysql_aurora.3.07.1
. the database cluster engine version gets updated successfully.synced: True
, without any previous endless drift->update cycle behavior.Credits: this is reusing the engine version util code from crossplane-contrib/provider-aws#1765