refactor: moved oci-related knowledge articles to the right section

knowledge base/cloud computing/oci/oci-cli.md

@@ -0,0 +1,79 @@
+# OCI CLI
+
+Oracle Cloud Infrastructure CLI.
+
+## Table of contents <!-- omit in toc -->
+
+1. [TL;DR](#tldr)
+1. [Configuration](#configuration)
+1. [Further readings](#further-readings)
+
+## TL;DR
+
+```sh
+# Install the CLI.
+brew install 'oci-cli'
+
+# Start the interactive setup.
+oci setup config
+
+# Generate a key pair to include in the config file.
+oci setup keys
+
+# Show the current configuration.
+cat ~/'.oci/config'
+
+# List available compartments.
+oci iam compartment list
+oci iam compartment list -c 'tenancy_id'
+
+# Create compartments.
+oci iam compartment create -c 'root_compartment_id' \
+  --name 'compartment_name' --description 'friendly_description'
+
+# List available availability domains.
+oci iam availability-domain list
+oci iam availability-domain list -c 'tenancy_id'
+
+# List available compute images.
+# Output is paginated.
+oci compute image list -c 'tenancy_id' --all
+oci compute image list -c 'tenancy_id' \
+  --lifecycle-state 'AVAILABLE' --shape 'VM.Standard.A1.Flex' \
+  --operating-system 'Oracle Linux' --operating-system-version '8' \
+  --sort-by 'DISPLAYNAME' --sort-order 'DESC'
+
+# List available compute instance plugins.
+# Requires to be given the OS and its version.
+oci instance-agent available-plugins get -c 'tenancy_id' \
+  --os-name 'Oracle Linux' --os-version '8'
+
+# List existing compute instances.
+oci compute instance list -c 'tenancy_id'
+```
+
+## Configuration
+
+| Unix location            | Description                                                                            |
+| ------------------------ | -------------------------------------------------------------------------------------- |
+| `~/.oci/config`          | The default configuration file.                                                        |
+| `~/.oci/oci_api_key.pem` | Full path and filename of the private key. The key pair **must be in the PEM format**. |
+
+## Further readings
+
+- [Oracle Cloud Infrastructure]
+- [Command Line Interface]
+- [SDK and CLI Configuration File]
+- [Required keys and OCIDs]
+
+<!--
+  References
+  -->
+
+<!-- Knowledge base -->
+[oracle cloud infrastructure]: README.md
+
+<!-- Upstream -->
+[command line interface]: https://docs.oracle.com/en-us/iaas/Content/API/Concepts/cliconcepts.htm
+[required keys and ocids]: https://docs.oracle.com/en-us/iaas/Content/API/Concepts/apisigningkey.htm
+[sdk and cli configuration file]: https://docs.oracle.com/en-us/iaas/Content/API/Concepts/sdkconfig.htm