How to create an always free K8S cluster in Oracle Cloud

Among them, you will have access to:

With this in mind, I started thinking about how I could create a useful environment for small apps using these resources.

Then I started to study how to install K3S in my environment and finished using the following topology of machines and networks.

Go to the networking page and start removing the current VCN, then create a new one using the following configuration (use the Start VCN Wizard):

Select the option Create VCN with Internet Connectivity:

Then configure the VCN like below:

Click on Next, review the supplied information and click on Create, now just wait some minutes and the new VCN will be created.

Inside of VCN menu, select the network and go to submenu Security Lists

In the private subnet and public subnet add the followings Ingress Rule:

These rules will enable all the communication between all services in these subnets, and open the HTTP 80 port to all IPs.

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