OCI Bastion Service Part I: How to use it to connect to your Private Subnet (Console)

Intro In the cloud, bastion or jump server is the only node exposed to the outside world and acts as a gateway between the private network where your backend resources (application, databases..etc) are hosted and the Internet. A Bastion runs bare minimum applications and is extremely secure. Even if any network can access it, it …

Terraform in OCI: The infamous error 404-NotAuthorizedOrNotFound

Intro Terraform uses API to interact with your Cloud provider’s platform. Hence many error messages thrown by your terraform deploy come directly from the cloud platform (i.e OCI services) . In some cases, they prove to be very unhelpful and empty of insights, leaving you wonder what really is breaking your deployment. These are part …

☁☁ My Terraform labs 2021– Cloud recap ☁☁

Intro The first time I had seen a glimpse of this Infrastructure as Code artifact in 2018 (presented by Roopesh Ramklass at our TOUG meetup), I found the it ugly as hell and sworn to never touch it (probably confused it with Json ;)). Today I am happy to admit that I was totally wrong …

Compare OCI, AWS, Azure, GCP application services

Intro Common trend for cloud providers is to compare their services/offers with AWS (even AWS itself does it when releasing new features). But it seems that the top 3 reached a sort of agreement where they only acknowledge their respective direct competition & dismiss any player outside this oligopoly. Oracle Cloud or AliCloud being more …

RMAN, INCARNATIONS, and ME part II: Recovery ignoring backups / ORA-19563: datafile copy header validation failed for file

Intro In an ideal world, I believe, every backup script should be matched by 2 recovery scenarios. As this swiss OUC figure reminds us, having a backup that works means nothing without a tested restore and recovery. Today I’ll try to depict the don’t do’s after an recovery of a controlfile with open resetlogs using …