Dynamic Update for OCI's Ingress Firewall Rules

Using Oracle's OCI API to update firewall ingress rules dynamically, to allow for dynamic IP address lockdown.

Regain Access to Oracle Instance

If you lose access to an instance (e.g. by forgetting/losing your SSH keys, or a server update breaks SSH access due to file permission changes) then you can try the following options, in order of increasing effort. For future reference, tailscale's wonderful ssh feature would mitigate this too

Oracle Free Tier references & resources

Links to handy references. Oracle's documentation is generally excellent, worth looking before asking. General /r/oraclecloud is a great place to search for answers and ask questions, plenty of helpful souls around. Oracle 1. Free Tier docs top level * Always Free Resources section (including specifics of what counts as "free

Oracle Free Tier VPS - Best Practices

Oracle offers a very generous free tier (although a little too generous perhaps which has led to temporary capacity issues in some regions - see FAQ). "Each tenancy gets the first 3,000 OCPU hours and 18,000 GB hours per month for free to create Ampere A1 Compute instances