Is Kubernetes Ending Support for Docker?

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Problem scenario
You read that Kubernetes is ending support for Docker. What does this mean for Kubernetes users?

Solution
Probably nothing for most Kubernetes users. Kubernetes is going to support Open Container Initiative images.

Docker is more than a container runtime; its container runtime is containerd (according to twoardsdatascience.com). We expect containerd to be supported for a long time.

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Is There a Difference between Coding Languages and Programming Languages?

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Question
You read that there is a difference between coding languages and programming languages. What is the difference?

Answer
The question is theoretical and subjective. Sometimes diction, semantics and job descriptions are not that important.

Coding and programming are different (but there are probably very highly-paid people who disagree). It seems that in certain contexts, rightly or wrongly,

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What is the Insuretech Industry?

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Question
You have read about insuretech, but you do not know what it is. What is the insuretech industry?

Background
An economy driven by short-term, niche demands can be satisfied by anonymous providers via recently pioneered mediums of exchanges has created a new area of need for both insurance and technology products.

The modern marketplace of new contracts, anonymous providers,

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How Do You Get the Docker Service to Start when You Get “Failed to start Docker Application Container Engine”?

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Problem scenario
“Failed to start Docker Application Container Engine”

Possible solution
Run this:

sudo systemctl status docker.service

Examine the output. Does the “Drop-In” section include an override.conf file or other wise refer to a .conf file?

Back up the file (e.g., to your home directory).
Remove the original file.
Then run these commands:

sudo systemctl daemon-reload
sudo systemctl start docker …

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How Do You Troubleshoot “This does not look like a tar archive” when Trying to Download a .tar.gz File with Linux?

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One of the below problem scenarios is happening.

Possible problem scenario #1
You try to download a file with curl or wget. Instead of downloading the file, you get a file with this as the content:

gzip: /home/ubuntu/foobar.tar.gz: not in gzip format
tar: This does not look like a tar archive
tar: Exiting with failure status due to previous errors

You use a web browser,

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What Is High-Cardinality in Monitoring?

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Question
High-cardinality in SQL refers to highly differentiated data for a given column. (Although “relatively unique” is not grammatical, that is one way to say it.) When there are many different possible values for a given column, that is high-cardinality. In the context of monitoring, what is high-cardinality?

Answer
In monitoring like relational databases, cardinality refers to the number of elements in a set (consistent with the mathematical definition https://www.dictionary.com/browse/cardinality).

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What is a Mutating Webhook?

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Question
In the context of Kubernetes, what is a mutating webhook?

Answer
They are an API invocation that make changes to resources (and in some cases before they are created per medium.com).

“MutatingAdmissionWebhook is one of easiest ways of extending Kubernetes with new policy controls and resources mutation and a host of other options.” (Taken from medium.com )

“Mutating controllers may modify related objects to the requests they admit;

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