fix(rds): fix rds examples to make aurora cluster & instance possible

[haarchri]

Signed-off-by: haarchri chhaar30@googlemail.com

Description of your changes

changed rds examples to fits for aurora-cluster & instance and use parametergroups for cluster & instace
Fixes #842 #844

I have:

• Read and followed Crossplane's contribution process.
• Run make reviewable test to ensure this PR is ready for review.

How has this code been tested

Aurora Cluster + Instance and dbClusterParameterGroup

NAME                                                                          READY   SYNCED   EXTERNAL-NAME
dbclusterparametergroup.rds.aws.crossplane.io/example-clusterparametergroup   True    True     example-clusterparametergroup

NAME                                                           READY   SYNCED   EXTERNAL-NAME
dbcluster.rds.aws.crossplane.io/example-aurora-mysql-cluster   True    True     example-aurora-mysql-cluster

NAME                                                             READY   SYNCED   EXTERNAL-NAME
dbinstance.rds.aws.crossplane.io/example-aurora-mysql-instance   True    True     example-aurora-mysql-instance

Single Instance with dbParameterGroup

NAME                                                             READY   SYNCED   EXTERNAL-NAME
dbinstance.rds.aws.crossplane.io/example-dbinstance              True   True     example-dbinstance

NAME                                                              READY   SYNCED   EXTERNAL-NAME
dbparametergroup.rds.aws.crossplane.io/example-dbparametergroup   True    True     example-dbparametergroup

[vlewin]

Thank you very much for updating the Aurora examples!

I tested the examples with CRDs from a master branch and everything seems to work fine. However, the DBInstance and DBClusterParameterGroup CRDs and controllers are not available in the v0.19.1 release.

When can we expect the new version of AWS provider with required CRDs and controller?

[chlunde]

Testet by at least two community members, LGTM!

[chlunde]

Thanks @haarchri !