kerongadgets.blogg.se - Manifest quotes

MANIFEST QUOTES WINDOWS

The following example illustrates Compose specification concepts with a concrete example application. Compose implementation MUST offer a way for user to set a custom project name and override this name, so that the same compose.yaml file can be deployed twice on the same infrastructure, without changes, by just passing a distinct name. Project name can be set explicitly by top-level name attribute. A Compose implementation creating resources on a platform MUST prefix resource names by project and

Resources together and isolate them from other applications or other installation of the same Compose specified application with distinct parameters. Secrets are made available to services as files mounted into their containers, but the platform-specific resources to provide sensitive data are specific enough to deserve a distinct concept and definition within the Compose specification.ĭistinction within Volumes, Configs and Secret allows implementations to offer a comparable abstraction at service level, but cover the specific configuration of adequate platform resources for well identified data usages.Ī Project is an individual deployment of an application specification on a platform. But the actual definition involves distinct platform resources and services, which are abstracted by this type.Ī Secret is a specific flavor of configuration data for sensitive data that SHOULD NOT be exposed without security considerations. From a Service container point of view, Configs are comparable to Volumes, in that they are files mounted into the container. For this, the specification defines a dedicated concept: Configs. Some services require configuration data that is dependent on the runtime or platform. Actual platform-specific implementation details are grouped into the Volumes definition and MAY be partially implemented on some platforms. The specification describes such a persistent data as a high-level filesystem mount with global options. Services store and share persistent data into Volumes. Low-level, platform-specific networking options are grouped into the Network definition and MAY be partially implemented on some platforms. In this specification, a Network is a platform capability abstraction to establish an IP route between containers within services connected together. Services communicate with each other through Networks. A Service is an abstract concept implemented on platforms by running the same container image (and configuration) one or more times.

Such an application is designed as a set of containers which have to both run together with adequate shared resources and communication channels.Ĭomputing components of an application are defined as Services. The Compose specification allows one to define a platform-agnostic container based application.

loose: ignore unsupported attributes AND unknown attributes (that were not defined by the spec by the time implementation was created).

strict: warn user about unsupported attributes and reject the compose file.

default: warn user about unsupported attributes, but ignore them.

The specification defines the expected configuration syntax and behavior, but - until noted - supporting any of those is OPTIONAL.Ī Compose implementation to parse a Compose file using unsupported attributes SHOULD warn user. Properties in a Compose file, established by the docker-compose tool where the Composeįile format was designed, doesn’t offer any guarantee to the end-user attributes will be actually implemented. The definition of a versioned schema to control the supported Is Platform dependent and can only be confirmed at runtime. We acknowledge that no Compose implementation is expected to support all attributes, and that support for some properties

MANIFEST QUOTES WINDOWS

The Compose specification includes properties designed to target a local OCI container runtime,Įxposing Linux kernel specific configuration options, but also some Windows container specific properties, as well as cloud platform features related to resource placement on a cluster, replicated application distribution and scalability. The key words “MUST”, “MUST NOT”, “REQUIRED”, “SHALL”, “SHALL NOT”, “SHOULD”, “SHOULD NOT”, “RECOMMENDED”, “MAY”, and “OPTIONAL” in this document are to be interpreted as described in RFC 2119. Distribution of this document is unlimited.

This document specifies the Compose file format used to define multi-containers applications. The Compose spec merges the legacyĢ.x and 3.x versions, aggregating properties across these formats and is implemented by Compose 1.27.0+. Version of the Compose file format is defined by the Compose Networks, and volumes for a Docker application. The Compose file is a YAML file defining services,