DO NOT APPROVE/MERGE - adding dsnexec as a sidecar [OLD] #181
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This is to add dsnexec as a side-car container.
Whenever db-controller would see following two annotations, it would add the sidecar.
remote-db-dsn-secret - In case of RDS, it would be the secret created by DBClaim. This would be mounted as a volume inside the sidecar. the dsn.txt file can be watched for changes (by configuring such through dsnexec config.yaml).
dsnexec-config-secret - This would be a secret which needs to be created by the apps. This should contain data as
This would be mounted as a volume inside the sidecar. The path to config.yaml file is given to the dsnexec entrypoint.