Difference between npx and npm?
Introducing npx: an npm package runner NPM - Manages packages but doesn't make life easy executing any. NPX - A tool for executing Node packages. NPX comes bundled with NPM version 5.2+ NPM by itself does not simply run any package. It doesn't run any package as a matter of fact. If you want to run a package using NPM, you must specify that package in your package.json file. When executables are i
Where does the convention of using /healthz for application health checks come from?
In the Kubernetes/Docker ecosystem there is a convention of using /healthz as a health-check endpoint for applications. Where does the name 'healthz' come from, and are there any particular semantics associated with that name?
How to process SIGTERM signal gracefully?
Let's assume we have such a trivial daemon written in python: def mainloop(): while True: # 1. do # 2. some # 3. important # 4. job # 5. sleep mainloop() and we daemonize it using start-stop-daemon which by default sends SIGTERM (TERM) signal on --stop. Let's suppose the current step performed is #2. And at this very moment we're sending TERM signal. What happens is that the execution terminates i
Amazon S3 - How to Check if Presigned URL is Expired?
If I have a generated Presigned URL that expired, should I be doing get_headers() (in PHP) to see if a 403 Forbidden error is thrown, otherwise use that same URL? Or is that a bad idea because it's an unnecessary GET request? Should I always just regenerate a new Presigned URL every time? I'm a little confused because there doesn't seem to be much information about this.
Download a specific tag with Git
I'm trying to figure out how I can download a particular tag of a Git repository - it's one version behind the current version. I saw there was a tag for the previous version on the git web page, with object name of something long hex number. But the version name is "Tagged release 1.1.5" according the site. I tried a command like this (with names changed): git clone http://git.abc.net/git/abc.git
Examples of HTTP API Rate Limiting HTTP Response headers
Here are some examples of HTTP API Rate Limiting HTTP Response headers. Taken from four common REST APIs: Github, Vimeo, Twitter and Imgur: Github Rate Limiting http://developer.github.com/v3/#rate-limiting #=============================#=============================================# # HTTP Header # Description # #=============================#=============================================# | X-Rat
What's the difference between a catalog and a schema in a relational database?
Mike Sherrill 'Cat Recall' gave an excellent answer. I'll add simply one example: Postgres. Cluster = A Postgres Installation When you install Postgres on a machine, that installation is called a cluster. ‘Cluster’ here is not meant in the hardware sense of multiple computers working together. In Postgres, cluster refers to the fact that you can have multiple unrelated databases all up and running
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How do I remove local (untracked) files from the current Git working tree?
How to specify the path of `package.json` to npm?
What is the best way to read a csv and text file from S3 on AWS glue without having to read it as a Dynamic daataframe?
Find and replace filename recursively in a directory
Convert Unix timestamp to a date string
How to upload a file to S3 and make it public using boto3?
Safari's "Reader Mode" - Open source solution?
when column matches text, copy the whole line to new file
Java using up far more memory than allocated with -Xmx - Stack Overflow
What do the makefile symbols $@ and $< mean?
Syntax for a single-line while loop in Bash
Big-O summary for Java Collections Framework implementations?
What is the most efficient way to deep clone an object in JavaScript?