Merge pull request #3430 from dneary/feature/minecraft-oci-always-free

Feature/minecraft oci always free

Author: jasonrandrews

content/learning-paths/servers-and-cloud-computing/minecraft-on-oci/OCI_change_shape.png

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+---
+title: Running a Minecraft server on OCI A1 Arm64 instances
+
+minutes_to_complete: 10
+
+who_is_this_for: Learners who are new to OCI and want a guided path from “provisioning an instance” to “running a persistent Minecraft server”.
+
+learning_objectives: 
+    - Provision an OCI A1 Arm64 virtual machine instance suitable for running a Minecraft server
+    - Deploy and configure Minecraft server software
+    - Expose the Minecraft service from OCI by editing the network policy for the instance 
+    - Connect to the running Minecraft server from the Minecraft client application
+
+prerequisites:
+    - Complete the [Get started with Oracle Cloud Infrastructure](../csp/oci/) learning path
+    - Install software that allows you to connect to a running instance over SSH
+    - Install the Minecraft client on your local laptop, and ensure that you have a Microsoft
+      or Mojang account to log in (it will help if you know the basics of playing Minecraft too)
+
+author: Dave Neary <dneary@amperecomputing.com>
+
+### Tags
+skilllevels: Introductory
+subjects: Web
+armips:
+    - Neoverse
+tools_software_languages:
+    - Java
+    - Minecraft
+operatingsystems:
+    - Linux
+
+
+further_reading:
+    - resource:
+        title: How To Setup And Run A Free Minecraft Server In The Cloud
+        link: https://blogs.oracle.com/developers/how-to-setup-and-run-a-free-minecraft-server-in-the-cloud
+        type: blog
+    - resource:
+        title: How to create a powerful Minecraft Server for free using Oracle Cloud
+        link: https://www.youtube.com/watch?v=0kFjEUDJexI
+        type: video
+
+
+
+### FIXED, DO NOT MODIFY
+# ================================================================================
+weight: 1                       # _index.md always has weight of 1 to order correctly
+layout: "learningpathall"       # All files under learning paths have this same wrapper
+learning_path_main_page: "yes"  # This should be surfaced when looking for related content. Only set for _index.md of learning path content.
+---

content/learning-paths/servers-and-cloud-computing/minecraft-on-oci/OCI_compute_dashboard.png

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+---
+# ================================================================================
+#       FIXED, DO NOT MODIFY THIS FILE
+# ================================================================================
+weight: 21                  # The weight controls the order of the pages. _index.md always has weight 1.
+title: "Next Steps"         # Always the same, html page title.
+layout: "learningpathall"   # All files under learning paths have this same wrapper for Hugo processing.
+---

content/learning-paths/servers-and-cloud-computing/minecraft-on-oci/OCI_compute_dashboard_orig.png

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+---
+title: Connecting the Minecraft client to the server
+weight: 4
+
+### FIXED, DO NOT MODIFY
+layout: learningpathall
+---
+
+## Connecting the Minecraft client to the server
+
+### Opening the port for the Minecraft server
+
+Before we connect to the Minecraft server, we will change the network policy to allow clients to
+connect to the Minecraft server over TCP port number 25565. To do this, we need to modify the
+networking settings for our instance in the OCI dashboard.
+
+1. On the OCI Instances page, choose your Minecraft server instance.
+2. In the Networking tab, click on the subnet name:
+   ![OCI instance networking](OCI_instance_networking.png)
+3. On the Security tab of the subnet page, choose the security list which is active for the instance
+   (by default, this is called "Default Security List for vcn-xxxxxxxx")
+   ![Default Security List for subnet](subnet_security_list.png)
+4. Under "Security rules", add a new Ingress rule (this means the rule applies to incoming traffic
+   from outside the instance). Set "Source CIDR" to "0.0.0.0/0" (this means all IP addresses can
+   connect), and set the "Destination Port Range" field to 25565.
+   ![Open port 25565 for Minecraft server](open_minecraft_port.png)
+
+You will also need to update your local firewall to allow connections to port 25565 on your instance.
+Reconnect to your instance with SSH, and run the following commands on Oracle Linux:
+```
+sudo firewall-cmd --permanent --add-port=25565/tcp
+sudo firewall-cmd --reload
+```
+or the following commands on Ubuntu:
+```
+sudo ufw allow 25565/tcp
+sudo ufw reload
+```
+
+You should now be able to run your Minecraft server on the OCI instance, then start your client, log in as
+usual, and connect to your brand new server!
+
+### Connecting to the server from the Minecraft client
+
+1. Start your Minecraft client and log in as usual.
+2. Choose "Multiplayer" mode - read and click through the warning that third party servers are not operated
+by Mojang.
+3. To add your server to the menu of available servers, choose "Add server", name your server
+something meaningful ("My OCI server" for example) and put the IP address of your instance into the
+"Server Address" field:
+   ![Configuring new server](configuring_new_minecraft_server.png)
+
+You can now join the server and start building! 
+   ![Connecting to your new server running on OCI](connecting_to_server.png)
+
+You can also share the address with your friends to start building a shared world. Have fun!
+
+
+