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Clean-up spec to remove non-spec-ish items
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Signed-off-by: Doug Davis <dug@us.ibm.com>
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Doug Davis committed Nov 30, 2016
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1 change: 0 additions & 1 deletion .gitignore
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code-of-conduct.md
/oci-validate-examples
output
7 changes: 1 addition & 6 deletions Makefile
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# These docs are in an order that determines how they show up in the PDF/HTML docs.
DOC_FILES := \
README.md \
code-of-conduct.md \
project.md \
spec.md \
media-types.md \
descriptor.md \
image-layout.md \
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ls -sh $(shell readlink -f $@)
endif

code-of-conduct.md:
curl -o $@ https://github.com/raw/opencontainers/tob/d2f9d68c1332870e40693fe077d311e0742bc73d/code-of-conduct.md

validate-examples:
go test -run TestValidate ./schema

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51 changes: 6 additions & 45 deletions README.md
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# Open Container Initiative Image Format Specification

The OCI Image Format project creates and maintains the software shipping container image format spec (OCI Image Format).
The goal of this specification is to enable the creation of interoperable tools for building, transporting, and preparing a container image to run.

## Table of Contents
The specification can be found [here](spec.md).

- [Introduction](README.md)
- [Code of Conduct](#code-of-conduct)
- [Project Documentation](project.md)
- [Media Types](media-types.md)
- [Content Descriptors](descriptor.md)
- [Image Layout](image-layout.md)
- [Image Manifest](manifest.md)
- [Image Manifest List](manifest-list.md)
- [Filesystem Layers](layer.md)
- [Image Configuration](config.md)
- [Canonicalization](canonicalization.md)
Additional documentation about how this group operates:

## Overview

This specification defines an OCI Image, consisting of a [manifest](manifest.md), a set of [filesystem layers](layer.md), and a [configuration](config.md).
At a high level the image manifest contains metadata about the contents and dependencies of the image including the content-addressable identity of one or more [filesystem layer changeset](layer.md) archives that will be unpacked to make up the final runnable filesystem.
The image configuration includes information such as application arguments, environments, etc.

The keywords "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" are to be interpreted as described in [RFC 2119](http://tools.ietf.org/html/rfc2119) (Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997).

The keywords "unspecified", "undefined", and "implementation-defined" are to be interpreted as described in the [rationale for the C99 standard][c99-unspecified].

![](img/build-diagram.png)

Once built the OCI Image can then be discovered by name, downloaded, verified by hash, trusted through a signature, and unpacked into an [OCI Runtime Bundle](https://github.com/opencontainers/runtime-spec/blob/master/bundle.md).

![](img/run-diagram.png)

## Understanding the Specification

The [OCI Image Media Types](media-types.md) document is a starting point to understanding the overall structure of the specification.

The high-level components of the spec include:

* An archival format for container images, consisting of an [image manifest](manifest.md), an [image layout](image-layout.md), a set of [filesystem layers](layer.md), and [image configuration](config.md) (base OCI layer)
* A [process of referencing container images by a cryptographic hash of their content](descriptor.md) (base OCI layer)
* A format for [storing CAS blobs and references to them](image-layout.md) (optional OCI layer)
* Signatures that are based on signing image content address (optional OCI layer)
* Naming that is federated based on DNS and can be delegated (optional OCI layer)
- [Code of Conduct](https://github.com/opencontainers/tob/blob/d2f9d68c1332870e40693fe077d311e0742bc73d/code-of-conduct.md)
- [Roadmap](#roadmap)
- [Releases](RELEASES.md)
- [Project Documentation](project.md)

The _optional_ and _base_ layers of all OCI projects are tracked in the [OCI Scope Table](https://www.opencontainers.org/governance/oci-scope-table).

Expand Down Expand Up @@ -95,10 +61,6 @@ Issues are used for bugs and actionable items and longer discussions can happen

The specification and code is licensed under the Apache 2.0 license found in the `LICENSE` file of this repository.

## Code of Conduct

Participation in the OCI community is governed by the [OCI Code of Conduct](https://github.com/opencontainers/tob/blob/d2f9d68c1332870e40693fe077d311e0742bc73d/code-of-conduct.md).

## Discuss your design

The project welcomes submissions, but please let everyone know what you are working on.
Expand Down Expand Up @@ -201,6 +163,5 @@ Read more on [How to Write a Git Commit Message](http://chris.beams.io/posts/git
8. When possible, one keyword to scope the change in the subject (i.e. "README: ...", "runtime: ...")


[c99-unspecified]: http://www.open-std.org/jtc1/sc22/wg14/www/C99RationaleV5.10.pdf#page=18
[UberConference]: https://www.uberconference.com/opencontainers
[irc-logs]: http://ircbot.wl.linuxfoundation.org/eavesdrop/%23opencontainers/
6 changes: 3 additions & 3 deletions manifest-list.md
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Expand Up @@ -41,12 +41,12 @@ This section defines the `application/vnd.oci.image.manifest.list.v1+json` [medi
- **`architecture`** *string*

This REQUIRED property specifies the CPU architecture.
Manifest lists SHOULD use, and implementations SHOULD understand, values [supported by runtime-spec's `platform.arch`][runtime-platform].
Manifest lists SHOULD use, and implementations SHOULD understand, values [supported by runtime-spec's `platform.arch`][runtime-platform2].

- **`os`** *string*

This REQUIRED property specifies the operating system.
Manifest lists SHOULD use, and implementations SHOULD understand, values [supported by runtime-spec's `platform.os`][runtime-platform].
Manifest lists SHOULD use, and implementations SHOULD understand, values [supported by runtime-spec's `platform.os`][runtime-platform2].

- **`os.version`** *string*

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}
```

[runtime-platform]: https://github.com/opencontainers/runtime-spec/blob/v1.0.0-rc2/config.md#platform
[runtime-platform2]: https://github.com/opencontainers/runtime-spec/blob/v1.0.0-rc2/config.md#platform
51 changes: 51 additions & 0 deletions spec.md
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# Open Container Initiative Image Format Specification

This specification defines an OCI Image, consisting of a [manifest](manifest.md), a set of [filesystem layers](layer.md), and a [configuration](config.md).

The goal of this specification is to enable the creation of interoperable tools for building, transporting, and preparing a container image to run.

## Table of Contents

- [Introduction](spec.md)
- [Notational Conventions](#notational-conventions)
- [Overview](#overview)
- [Understanding the Specification](#understanding-the-specification)
- [Media Types](media-types.md)
- [Content Descriptors](descriptor.md)
- [Image Layout](image-layout.md)
- [Image Manifest](manifest.md)
- [Image Manifest List](manifest-list.md)
- [Filesystem Layers](layer.md)
- [Image Configuration](config.md)
- [Canonicalization](canonicalization.md)

# Notational Conventions

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" are to be interpreted as described in [RFC 2119](http://tools.ietf.org/html/rfc2119) (Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997).

The key words "unspecified", "undefined", and "implementation-defined" are to be interpreted as described in the [rationale for the C99 standard][c99-unspecified].

# Overview

At a high level the image manifest contains metadata about the contents and dependencies of the image including the content-addressable identity of one or more [filesystem layer changeset](layer.md) archives that will be unpacked to make up the final runnable filesystem.
The image configuration includes information such as application arguments, environments, etc.

![](img/build-diagram.png)

Once built the OCI Image can then be discovered by name, downloaded, verified by hash, trusted through a signature, and unpacked into an [OCI Runtime Bundle](https://github.com/opencontainers/runtime-spec/blob/master/bundle.md).

![](img/run-diagram.png)

## Understanding the Specification

The [OCI Image Media Types](media-types.md) document is a starting point to understanding the overall structure of the specification.

The high-level components of the spec include:

* An archival format for container images, consisting of an [image manifest](manifest.md), an [image layout](image-layout.md), a set of [filesystem layers](layer.md), and [image configuration](config.md) (base OCI layer)
* A [process of referencing container images by a cryptographic hash of their content](descriptor.md) (base OCI layer)
* A format for [storing CAS blobs and references to them](image-layout.md) (optional OCI layer)
* Signatures that are based on signing image content address (optional OCI layer)
* Naming that is federated based on DNS and can be delegated (optional OCI layer)

[c99-unspecified]: http://www.open-std.org/jtc1/sc22/wg14/www/C99RationaleV5.10.pdf#page=18

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