1cx Container

[Dimple Belousson]

PackageSoftware into Standardized Units for Development, Shipment and DeploymentA container is a standard unit of software that packages up code and all its dependencies so the application runs quickly and reliably from one computing environment to another. A Docker container image is a lightweight, standalone, executable package of software that includes everything needed to run an application: code, runtime, system tools, system libraries and settings.

Technology available from Docker and its open source project, Moby has been leveraged by all major data center vendors and cloud providers. Many of these providers are leveraging Docker for their container-native IaaS offerings. Additionally, the leading open source serverless frameworks utilize Docker container technology.

Containers and virtual machines have similar resource isolation and allocation benefits, but function differently because containers virtualize the operating system instead of hardware. Containers are more portable and efficient.

Containers are an abstraction at the app layer that packages code and dependencies together. Multiple containers can run on the same machine and share the OS kernel with other containers, each running as isolated processes in user space. Containers take up less space than VMs (container images are typically tens of MBs in size), can handle more applications and require fewer VMs and Operating systems.

Following this evolution, Docker continues to give back with the containerd project, which Docker donated to the Cloud Native Computing Foundation (CNCF) in 2017. containerd is an industry-standard container runtime that leverages runc and was created with an emphasis on simplicity, robustness and portability. containerd is the core container runtime of the Docker Engine.

A container is any receptacle or enclosure for holding a product used in storage, packaging, and transportation, including shipping.[1]Things kept inside of a container are protected on several sides by being inside of its structure. The term is most frequently applied to devices made from materials that are durable and are often partly or completely rigid.

Humans have used containers for at least 100,000 years, and possibly for millions of years.[4] The first containers were probably invented for storing food,[4][5] allowing early humans to preserve more of their food for a longer time, to carry it more easily, and also to protect it from other animals. The development of food storage containers was "of immense importance to the evolving human populations", and "was a totally innovative behavior" not seen in other primates.[6] The earliest containers were probably objects found in nature such as hollow gourds,[7] of which primitive examples have been found in cultures such as those of the Tharu people,[8] and native Hawaiian people.[9] These were followed by woven baskets, carved wood, and pottery.

Containers thereafter continued to develop along with related advances in human technology, and with the development of new materials and new means of manufacture.[10] Early glass bottles were produced by the Phoenicians; specimens of Phoenician translucent and transparent glass bottles have been found in Cyprus and Rhodes generally varying in length from three to six inches.[11] These Phoenician examples from the first millennium BC were thought to have been used to contain perfume.[12] The Romans learned glass-making from the Phoenicians and produced many extant examples of fine glass bottles, mostly relatively small. By the beginning of the eighteenth century, sizes for retail containers such as glass bottles had become standardized for their markets.[13]

In 1810, Frenchman Philippe de Girard came to London and used British merchant Peter Durand as an agent to patent his own idea for a process for making tin cans.[14] The canning concept was based on experimental food preservation work in glass containers the year before by the French inventor Nicholas Appert. Durand did not pursue food canning, but, in 1812, sold his patent to two Englishmen, Bryan Donkin and John Hall, who refined the process and product, and set up the world's first commercial canning factory on Southwark Park Road, London. By 1813 they were producing their first tin canned goods for the Royal Navy.

For transportation of goods on a larger scale, larger containers remained a problem, as customs officials inspecting imports had to deal with a lack of standardization in this field, and because predominantly wooden containers in use well into the twentieth century were prone to leaking or breaking.[13] The standardized steel shipping container was developed in the 1950s, and quickly became ubiquitous for the large-scale transportation of commercial goods.

Towards the end of the Twentieth century, the introduction of computer-aided design made it possible to design highly specialized containers and container arrangements, and also to make form-fitting labels for containers of unusual shapes.[15]

The product characteristics that create utility for a container go beyond just providing shock and moisture protection for the contents. A well-designed container will also exhibit ease of use, that is, it is easy for the worker to open or close, to insert or extract the contents, and to handle the container in shipment. In addition, a good container will have convenient and legible labeling locations, a shape that is conducive to efficient stacking and storing, and easy recycling at the end of its useful life.[16]

The @container CSS at-rule is a conditional group rule that applies styles to a containment context. Style declarations are filtered by a condition and applied to the container if the condition is true. The condition is evaluated when the container size or value changes.

The container-name property specifies a list of query container names. These names can be used by @container rules to filter which query containers are targeted. The optional, case-sensitive filters the query containers that are targeted by the query.

A container context can be created using the container-type property, in this case using the inline-size value on the .post class. You can then use the @container at-rule to apply styles to the element with the .card class in a container that's narrower than 650px.

Container queries can also evaluate the computed style of the container element. A container style query is a @container query that uses one or more style() functional notations. The boolean syntax and logic combining style features into a style query is the same as for CSS feature queries.

If the passed as the style() function's argument is a declaration, the style query evaluates to true if the declaration's value is the same as the computed value of that property for the container being queried. Otherwise, it resolves to false.

Note: If a custom property has a value of blue, the equivalent hexidecimal code #0000ff will not match unless the property has been defined as a color with @property so the browser can properly compare computed values.

Style features that query a shorthand property are true if the computed values match for each of its longhand properties, and false otherwise. For example, @container style(border: 2px solid red) will resolve to true if all 12 longhand properties (border-bottom-style, etc.) that make up that shorthand are true.

\n The @container CSS at-rule is a conditional group rule that applies styles to a containment context.\n Style declarations are filtered by a condition and applied to the container if the condition is true.\n The condition is evaluated when the container size or value changes.\n

\n A container context can be created using the container-type property, in this case using the inline-size value on the .post class.\n You can then use the @container at-rule to apply styles to the element with the .card class in a container that's narrower than 650px.\n

Gain the security of virtual machines for your container workloads, while preserving the efficiency of lightweight containers. ACI provides hypervisor isolation for each container group to ensure containers run in isolation without sharing a kernel.

ACI provides fast, isolated compute to meet traffic that comes in spikes, without the need to manage servers. For example, Azure Kubernetes Service (AKS) can use the Virtual Kubelet to provision pods inside ACI that start in seconds. This enables AKS to run with just enough capacity for your average workload. As you run out of capacity in your AKS cluster, scale out additional pods in ACI without any additional servers to manage.

Combine ACI with the ACI Logic Apps connector, Azure queues, and Azure Functions to build robust infrastructure that can elastically scale out containers on demand. With Azure Container Instances, you can run complex tasks that are capable of responding to events.

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