Cloud-oriented Life

Cloud Native Technology Improves Lives

Data Mapping

Data Mapping allows users to obtain the value of a variable in the current Data Chain through ${xxx} or $xxx to achieve flexible data configuration functions. It is mainly used in scenarios such as template strings and custom api request data body formats.

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Template

In order to render text and data structures more flexibly, amis implements two template rendering functions refer to other template engines.

  • Template string ${xxx}

  • JavaScript template engine <%= data.xxx %>, <%- expression %>

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mimemagic has been yanked

mimemagic(0.4.0, 0.3.6 and previous versions) has been yanked, and it is not available for download directly or for other gems that may have depended on it.

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Your bundle is locked to mimemagic (0.3.6), but that version could not be found

You need to update rails, carrierwave and caxlsx gems which dependent on mimemagic to the latest version.

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Understanding PostgreSQL Service Status: “Active (Exited)” Explained

As a seasoned software engineer, you know that managing services is a crucial aspect of system administration. One common point of confusion for many is interpreting the status of services, especially when dealing with PostgreSQL. A particular case that often raises questions is when postgresql.service shows an “active (exited)” status. This blog post aims to demystify this status and explain why it indicates that PostgreSQL is running normally.

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postmark-rails

Postmark: Application Email Service with Exceptional Delivery - https://postmarkapp.com/ allows you to send your emails with high delivery rates. It also includes detailed statistics. In addition, Postmark can parse incoming emails which are forwarded back to your application.

The Postmark Rails Gem is a drop-in plug-in for ActionMailer to send emails via [Postmark - https://postmarkapp.com/)(https://postmarkapp.com/). The gem has been created for fast implementation and fully supports all of Postmark’s features - https://postmarkapp.com/why.

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TruffleRuby

TruffleRuby is the GraalVM high-performance implementation of the Ruby programming language.

GraalVM is a high-performance multilingual runtime. It is designed to accelerate the execution of applications written in Java and other JVM languages while also providing runtimes for JavaScript, Ruby, Python, and a number of other popular languages. GraalVM’s polyglot capabilities make it possible to mix multiple programming languages in a single application while eliminating any foreign language call costs.

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Mirrors

Mirror sites or mirrors are replicas of other websites or any network node. The concept of mirroring applies to network services accessible through any protocol, such as HTTP or FTP. Such sites have different URLs than the original site, but host identical or near-identical content.

The purpose of mirrors is to reduce network traffic, improve access speed, ensure availability of the original site for technical or political reasons or provide a real-time backup of the original site.

This article describe a few useful mirrors in China Mainland.

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ctop

Top-like interface for container metrics

ctop provides a concise and condensed overview of real-time metrics for multiple containers:

ctop

as well as a single container view for inspecting a specific container.

ctop comes with built-in support for Docker and runC; connectors for other container and cluster systems are planned for future releases.

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