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JSON Schema is a vocabulary that allows you to annotate and validate JSON documents.Benefits
On top of it you can run JSON Forms, a data driven forms library:- Describes your existing data format(s).
- Provides clear human- and machine- readable documentation.
- Validates data which is useful for:
- Automated testing.
- Ensuring quality of client submitted data.
- Declare your forms as JSON based on a JSON Schema
- Fully-featured forms including data-binding, input validation, and rule-based visibility out-of-the-box
- Designed for customizability - from custom styling to custom widgets
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On Oracle Autonomous Database (Oracle Cloud DB service), the consumer groups of the predefined service names provide different levels of performance and concurrency.
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In this second article, I suggest to explore further two simple helm chart for getting a bit more inside K8s.
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Slackware was my first real distro in 1995 and I am happy it is still alive and kicking. It was a floppy disk based distribution. So you end up filling about 20 disks (!) of 1.44MB to install and boot Linux on your old i386 with 1MB of RAM and 40MB of HardDisk. After
some upgrade I finally got a PC with 8MB RAM and 500MB hard disk (and yes, it was a lot of space for that times!).
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Log4jShell vulnerability
- Kasperky article
- https://www.lunasec.io/docs/blog/log4j-zero-day-update-on-cve-2021-45046/ with the following "news":If you have previously used LOG4J_FORMAT_MSG_NO_LOOKUPS to mitigate the log4shell vulnerability, in certain conditions this will not be sufficient to protect your code from RCE. Refer to our mitigation guide for additional steps you can take to remediate the impact of Log4Shell
- Apache group released two fix in short delay, after the second fix was found vulnerable to other attacks, a third fix (2.17.0) was released.
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- Shutdown VM and compress the compact the disks
- Check if you have enough space: you need more or less the space of the VM disks+ minimal RAM configured
- From your Hyper-V host, run PowerShell as an administrator and then run something like: GET-VM This will display all the VMs running on the current host.
- Then run:
$ExportPath = “C:\\Exports” Export-VM -Name “BoxNameFromGetVM Step3” -Path $ExportPath
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On 2023 Ubuntu 18 LTS support will end, so I started to evaluate the next LTS release, Ubuntu 20.
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Apache Cassandra Compendium, pasting together documentation from https://cassandra.apache.org/doc/latest/cassandra/data_modeling/index.html
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