I’ve wanted to write something about this topic for quite a while and finally OCI has released it’s first step of Private DNS capabilities! Why do I think this is a big thing? For example let’s say you need to have Hub & Spoke model with multiple VCNs, if you’ve wanted to resolve hostnames between…
OCI Linux and opening firewall ports with bootstrap
This is just a short post but something I was struggling to figure out. I wanted to open port 80 while starting up OCI Linux 7.8 instance and was using cloud-init portion what you have in the advanced section when creating a compute instance. Initially I had this in the bootstrap configuration: But no matter…
Setting up Custom Logs in OCI
With the recent announcement of Observability and Management platform I thought it’s good to try out how can we fetch logs from provisioned instances in OCI. In this post I’ll be making sure the instance I’m using has the Monitoring Agent required installed. Also I’ll make sure I have Log Group, Logs and Agent Configuration…
OCI list instances requiring maintenance from Cloud Shell
We had question to come up how to list OCI Compute instances which are requiring maintenance quickly and I found an excellent script from Radu Dobrinescu written in Python. But if I would like to run it quickly in cloud shell without any API keys or another instance which is using instance principles how would…
Use case for Network Security Groups in OCI
So a while back OCI got NSGs (Network Security Groups) but most what I still see with implementations is that people tend to use Security Lists. Remember Security Lists are applied on subnet level while NSGs are applied to VNICs. I recently got following dilemma on tenancy created a while back. Challenge All the subnets…
Create multiple compartments in Oracle Cloud Infrastructure with Terraform module
This time I wanted to show how simple it is to create multiple compartments with one module using Terraform 0.12. Compartments in OCI are way to separate your resources and control access on them, you can also move resources around from one compartment to another if needed. Remember one of the reasons one would like…
Terraform and OCI DHCP Options
Hello blog! Sorry I’ve been lacking with my posts but let’s kick it off again and with a bang! I’ve had few cases previously where I’m using Terraform modules and the blocks need to support one to many different values. This means that sometimes the values exist and sometimes they don’t. For this I thought…
How I studied for the Oracle Cloud Infrastructure 2019 Certified Architect Professional 1Z0-997
Earlier this week I took the 1Z0-997 Oracle Cloud Infrastructure 2019 Certified Architect Professional. In this post I’ll try to share on how I studied on the test and what areas I feel helped me on passing the certification. I won’t be posting any questions or answers but rather want to help you on studying…
OGB Appreciation Day: OCI Compartments
Oracle Groundbreaker’s Appreciation day time. Read more about from here! I’m a fan of looking “dull” features of Oracle Cloud Infrastructure and thought Compartments would fit right into it on #ThanksOGB day. Compartments are way to control access and separate resources in your OCI tenancy. And actually tenancy is the root compartment of your compartments!…
Create three instances with Terraform 0.12 and dynamic modules in Oracle Cloud Infrastructure
I have an old post how to create three instances in OCI with modules using Terraform 0.11 but since 0.12 came out I’ve been wanting to rewrite it to show what we can achieve with new features introduced in TF 0.12. In this post I will once again create those instances but now the modules…