A year ago Oracle announced the Oracle always free tier. Let me describe shortly what it is and point to few great examples what to do with it. Such as complete web interface solution based on Oracle APEX with load balancer and all. Machine learning solutions based on build in ML or Python or R. Have Docker containers. Running Oracle Jet or having (multiple) node.js application. Host WordPress website and other options. All of them Always Free.
First, what it is:
1. It is free = no cost. Oracle requires you to enter a credit card. Not because it would charge you, rather to be sure you are serious and real person.
2. It is always = Unlimited time. Not a month not 1 or 2 years.
The basic link is here: https://www.oracle.com/cloud/free/
What we get:
1. The Always Free part, we will cover here.
2. 30 days free trial of US$300 in free credits.
In this Post we will focus on the Always Free option, yet few words about the trial. It's much more than 300$ since we are not charged for many things. We are limited to 8 instances or 8 OCPUs and 5 TB of storage. Here are few ideas from Oracle how to use those 300$ http://www.oracle.com/us/what-can-i-do-with-300-in-credits-3746781.pdf
What is OCPU? Short version: 1 Core / 2 vCPUs.
Longer version: CPU capacity equivalent of one physical core of an Intel Xeon processor with hyper threading enabled, or one physical core of an Oracle SPARC processor. For Intel Xeon processor each OCPU corresponds to two hardware execution threads, known as vCPUs.
Lets talk about Oracle Always Free.
Services you can use for an unlimited time.
- Two Oracle Autonomous Databases with powerful tools like Oracle Application Express (APEX) and Oracle SQL Developer
- Two Oracle Cloud Infrastructure Compute VMs; Block, Object, and Archive Storage; Load Balancer and data egress; Monitoring and Notifications
You can see a list of eligible services here (https://www.oracle.com/cloud/free/#always-free)
For your convenience, the paid options are greyed out:
It is a good practice to verify you have this sign when creating stuff.
From this post I will try to gather the posts and ideas people had how to use the Always Free Tier. Most of the links have also good step by step guides how to setup the service.
If you prefer specific "how to start" guides
Here is a nice one by Atul Kumar https://k21academy.com/1z0-932/how-to-create-always-free-services-in-oracle-cloud/ (including links to Telegram groups).
Here is a 3 Part series of devem.com https://devepm.com/2020/05/06/oracle-always-free-offering/ https://devepm.com/2020/05/18/oracle-always-free-cloud-offering-part-2/ https://devepm.com/2020/05/21/oracle-always-free-cloud-offering-part-3/
Using APEX (Oracle Application Express is a low-code
development platform that enables you to build scalable, secure enterprise
apps, with world-class features, that can be deployed anywhere) seems natural fit
for the free tear. Yet Dimitri Gielis did a tremendous work with this series of
post (or this YouTube video, if you prefer https://youtu.be/5qHQfOH44rY) this might be relevant for non APEX uses as well.
1. Sign-upfor Free Oracle Cloud
2. SetupAutonomous Transaction Cloud (ATP)
3. Connectingwith SQL Developer (Desktop) to ATP
4. Connectingwith SQL Developer Web to ATP
5. SetupAPEX in ATP and create the first APEX app
6. Createa VM Instance (Compute Cloud)
7. Setupa Webserver on the Compute Instance (VM)
8. SetupAPEX Office Print (AOP) to export to PDF, Excel, Word, Powerpoint, HTML andText
9. SetupObject Storage and use for File Share and Backups
10. RunningSQLcl and Datapump from the Compute Instance (VM) to ATP
11. SendingEmails with APEX_MAIL on ATP
12. Createa 2nd Compute Instance and a Load Balancer
13. Finalthings to take away
14. Message:Your Oracle Cloud Free Trial has expired (but FREE keeps running)
15. Error:The request could not be mapped to any database
16. RenewingLet's Encrypt certificate
17. Configuredomain to redirect to APEX app
18. Monitoringyour website and APEX app
19. OracleAPEX upgrades (19.1 to 19.2)
20. Moreinfo on Oracle Database upgrades
21. Moreinfo on Oracle APEX upgrades
22. Custom Domain Name (URL) with your own ORDS on the Webserver
For Machine Learning on Always Free there are few blogs.
Here Andrej Baranovskij explain how to use the built in Machine Learning in ADW (Autonomous Data Warehouse) https://towardsdatascience.com/machine-learning-with-sql-ae46b1fe78a9
Connecting of ADW to Python is done here https://oralytics.com/2020/01/28/python-connecting-to-multiple-oracle-autonomous-dbs-in-one-program/ by Brendan Tierney.
Here savvinov explains how to install R shiny server on OCI compute instance (always free tier) https://savvinov.com/2020/07/13/installing-r-shiny-server-on-oci-compute-instance-always-free-tier/
Docker Container is explained here by Lucas Jellema https://technology.amis.nl/2020/02/06/run-always-free-docker-container-on-oracle-cloud-infrastructure/
VM on always free is installed by Brendan Tierney here https://oralytics.com/2019/10/25/creating-a-vm-on-oracle-always-free/
Oracle Jet On Docker is described here by Andrej Baranovskij http://andrejusb.blogspot.com/2019/09/running-oracle-jet-in-oracle-cloud-free.html he also suggests the same on Multiple Node.js Applications on Oracle Always Free Cloud http://andrejusb.blogspot.com/2019/11/multiple-nodejs-applications-on-oracle.html
Tony Darnell describes Oracle’s “Always Free” Cloud Instance – Installing MySQL and Adding a
web server to your free MySQL compute instance with zero monthly charges, here https://scriptingmysql.wordpress.com/2019/11/14/installing-mysql-on-oracle-clouds-always-free-compute-instance/ and here https://scriptingmysql.wordpress.com/2019/11/19/oracles-always-free-cloud-instance-adding-a-web-server-to-your-free-mysql-compute-instance-with-zero-monthly-charges/amp/
Todd Sharp is Migrating From AWS To OCI here https://ronaldvargasquesada.wordpress.com/2019/10/01/oracle-bloggers-journey-to-the-free-cloud-migrating-from-aws-to-oci/
Marcelo Ochoa writes about HA Configuration here https://itnext.io/oracle-always-free-cloud-instances-in-ha-configuration-e1d3dd59d3b1
Host WordPress website for free is described by Hugh Gallagher here https://medium.com/analytics-vidhya/host-wordpress-for-free-on-oracle-cloud-a31d079a8cbc and by Project-42 here https://dev.to/project42/using-your-oracle-free-cloud-to-host-your-wordpress-website-582f.
And last, is my favorite usage. I have 20 GB storage for free. Each time I have to send someone big documents, I upload them to Object Storage bucket, Create a PAR (Pre-Authenticated Request) and send out the time limited URL.
The steps are:
Create a bucket (once) in object storage:
Upload a file. Press the 3 points menu at the end of object line and select PAR:
Set name, type of access and date:
And send the download URL created.
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