CONTINUAL INTEGRATION – Page 16 – A Technical I.T./DevOps Blog

What is a Good Book for Maven?

Question
You want to purchase a book to learn Maven. What book is recommended?

Answer
Maven: The Definitive Guide written by Sonatype and published by O'Reilly (per page 377 of Continuous Delivery by Humble and Farley).

If you want to read about Maven or Gradle, you can browse articles on this site.

How Do You Troubleshoot the error “operator-sdk: cannot find module for path embed”?

Problem scenario
You run "make install" and get an error like this:

build github.com/operator-framework/operator-sdk/cmd/operator-sdk: cannot find module for path embed
make: *** [Makefile:65: install] Error 1

What should you do?

Solution
1. Edit the go.mod file. Replace this line:

module github.com/operator-framework/operator-sdk/

with this line

module github.com/operator-framework/operator-sdk/tree/master/

How Do You Get the Arrow Keys to Not Enter Text when in vi?

Problem scenario
When you enter text in vi you see A, B, C, or D, when you press an arrow key. How do you get vi to act more "normally"?

Solution
Create ~/.vimrc if it doesn't exist. If it does exist, append a stanza "set nocompatible" (without quotes) to the file.

Here are the steps:

vi ~/.vimrc
set nocompatible

Can the Word “Bandwidth” Be Use to Describe an Employee’s Capacity for More Work?

Question
Is it acceptable to ask an employee if they have availability for more work by asking if they have "bandwidth"?

Answer
Yes, but not everyone will know what it means, and some people don't care for this metaphor.

Sources:

https://english.stackexchange.com/questions/57935/is-it-proper-to-use-the-word-bandwidth-as-it-relates-to-time-allotment

https://www.quora.com/What-is-the-meaning-when-your-boss-says-Do-you-have-any-bandwidth-for-a-project

How Do You Troubleshoot a “make install” Command Failing?

Problem scenario
You run a "make install" command, but it fails with a message that says
"error loading module requirements…Makefile …"

What should you do?

Possible solution #1
You do not have enough space on the disk. Can you expand the storage capacity? Then run "go mod tidy" when the server is usable again. Try the "make install" again.

Possible solution #2
You do not have permissions to write to certain directories. Can you try again with the sudo user?

Possible solution #3
The package you downloaded was incomplete, incorrect or became corrupted. Can you use new installation media?

Possible solution #4
Run "make install --debug".

Possible solution #5
Can you search the internet other parts of error message?

What Does “Not Your Keys, Not Your Coins” Mean?

Problem scenario
You have seen the initialism NYKNYC. What does it mean?

Solution
NYKNYC means "not your keys, not your coins" or "not your keys, not your cryptocurrency." A private key is a non-tangible key that is not supposed to be given to other people. A public key is an address that may be given to other people.

You have to protect that private key because if anyone else gets their hands on it, they can use it to say they own your address, which means they own your coins.
https://blog.trezor.io/where-in-the-world-are-my-coins-85a229417b06

The engraving of "am I not a woman and a sister?" was an effort by women to help show that slaves were human beings. The negative put emphasis on the humanity of the slave. For this quote "not your keys, not your coins," emphasizes a wallet (to avoid a website exchange that has your private keys).

The word "middleman" became a word in 1675; this was the same year the word "psychology" became a word. Globalization began in the mid 1500s. People thought about merchant ships and what other individual people were thinking and needed new words. Cryptocurrency exchange websites act as a middleman between the users (those who buy cryptocurrency) and the assets (e.g., Bitcoin).

Without your private key, you may not have access to your cryptocurrency. A website for cryptocurrency exchange acts as a middleman; it has private keys to have access to the coins of its users. A user of such a website does not have access to their private keys directly.

The phrase "not your keys, not your coins (or crypto)", highlights the exchange being a custodian of the cryptocurrency assets. This may discourage people from using an exchange/website or cryptocurrency altogether. A cold cryptocurrency wallet (e.g., tangible hardware) could enable a cryptocurrency owner to bypass the (negative aspects of the) concept of "not your keys, not your coins."

To read more about "not your keys, not your coins/cryptocurrency", see the following links:

To learn more about cryptocurrency, see these two articles:

How Do You Insure Your Bitcoin/Cryptocurrency Holdings?

https://blog.trezor.io/where-in-the-world-are-my-coins-85a229417b06

If you want to buy a cryptocurrency wallet, check to see if it supports the ones you want before buying. You can browse them on Amazon here.

Protecting the recovery seed is essential for getting your cryptocurrency if your wallet is damaged. There are cryptocurrency wallet recovery plates made with titanium and st e el capsules that can help protect your cold seed storage for your wallet.