Merge pull request #2023 from jodh-intel/docs-rm-tocs

docs: Remove table of contents

README.md

@@ -2,23 +2,6 @@
 
 # Kata Containers
 
-* [Kata Containers](#kata-containers)
-    * [Introduction](#introduction)
-    * [Getting started](#getting-started)
-    * [Documentation](#documentation)
-    * [Community](#community)
-    * [Getting help](#getting-help)
-        * [Raising issues](#raising-issues)
-            * [Kata Containers 1.x versions](#kata-containers-1x-versions)
-    * [Developers](#developers)
-        * [Components](#components)
-            * [Kata Containers 1.x components](#kata-containers-1x-components)
-        * [Common repositories](#common-repositories)
-        * [Packaging and releases](#packaging-and-releases)
-    * [Glossary of Terms](#glossary-of-terms)
-
----
-
 Welcome to Kata Containers!
 
 This repository is the home of the Kata Containers code for the 2.0 and newer
@@ -27,11 +10,6 @@ releases.
 If you want to learn about Kata Containers, visit the main
 [Kata Containers website](https://katacontainers.io).
 
-For further details on the older (first generation) Kata Containers 1.x
-versions, see the
-[Kata Containers 1.x components](#kata-containers-1x-components)
-section.
-
 ## Introduction
 
 Kata Containers is an open source project and community working to build a
@@ -68,69 +46,34 @@ Please raise an issue
 > **Note:**
 > If you are reporting a security issue, please follow the [vulnerability reporting process](https://github.com/kata-containers/community#vulnerability-handling)
 
-#### Kata Containers 1.x versions
-
-For older Kata Containers 1.x releases, please raise an issue in the
-[Kata Containers 1.x component repository](#kata-containers-1x-components)
-that seems most appropriate.
-
-If in doubt, raise an issue
-[in the Kata Containers 1.x runtime repository](https://github.com/kata-containers/runtime/issues).
-
 ## Developers
 
 ### Components
 
+### Main components
+
+The table below lists the core parts of the project:
+
 | Component | Type | Description |
 |-|-|-|
-| [agent-ctl](tools/agent-ctl) | utility | Tool that provides low-level access for testing the agent. |
+| [runtime](src/runtime) | core | Main component run by a container manager and providing a containerd shimv2 runtime implementation. |
 | [agent](src/agent) | core | Management process running inside the virtual machine / POD that sets up the container environment. |
 | [documentation](docs) | documentation | Documentation common to all components (such as design and install documentation). |
-| [osbuilder](tools/osbuilder) | infrastructure | Tool to create "mini O/S" rootfs and initrd images for the hypervisor. |
-| [packaging](tools/packaging) | infrastructure | Scripts and metadata for producing packaged binaries<br/>(components, hypervisors, kernel and rootfs). |
-| [runtime](src/runtime) | core | Main component run by a container manager and providing a containerd shimv2 runtime implementation. |
-| [trace-forwarder](src/trace-forwarder) | utility | Agent tracing helper. |
-
-#### Kata Containers 1.x components
+| [tests](https://github.com/kata-containers/tests) | tests | Excludes unit tests which live with the main code. |
 
-For the first generation of Kata Containers (1.x versions), each component was
-kept in a separate repository.
+### Additional components
 
-For information on the Kata Containers 1.x releases, see the
-[Kata Containers 1.x releases page](https://github.com/kata-containers/runtime/releases).
-
-For further information on particular Kata Containers 1.x components, see the
-individual component repositories:
+The table below lists the remaining parts of the project:
 
 | Component | Type | Description |
 |-|-|-|
-| [agent](https://github.com/kata-containers/agent) | core | See [components](#components). |
-| [documentation](https://github.com/kata-containers/documentation) | documentation | |
-| [KSM throttler](https://github.com/kata-containers/ksm-throttler) | optional core | Daemon that monitors containers and deduplicates memory to maximize container density on the host. |
-| [osbuilder](https://github.com/kata-containers/osbuilder) | infrastructure | See [components](#components). |
-| [packaging](https://github.com/kata-containers/packaging) | infrastructure | See [components](#components). |
-| [proxy](https://github.com/kata-containers/proxy) | core | Multiplexes communications between the shims, agent and runtime. |
-| [runtime](https://github.com/kata-containers/runtime) | core | See [components](#components). |
-| [shim](https://github.com/kata-containers/shim) | core | Handles standard I/O and signals on behalf of the container process. |
-
-> **Note:**
->
-> - There are more components for the original Kata Containers 1.x implementation.
-> - The current implementation simplifies the design significantly:
->   compare the [current](docs/design/architecture.md) and
->   [previous generation](https://github.com/kata-containers/documentation/blob/master/design/architecture.md)
->   designs.
-
-### Common repositories
-
-The following repositories are used by both the current and first generation Kata Containers implementations:
-
-| Component | Description | Current | First generation | Notes |
-|-|-|-|-|-|
-| CI | Continuous Integration configuration files and scripts. | [Kata 2.x](https://github.com/kata-containers/ci/tree/main) | [Kata 1.x](https://github.com/kata-containers/ci/tree/master) | |
-| kernel | The Linux kernel used by the hypervisor to boot the guest image. | [Kata 2.x][kernel] | [Kata 1.x][kernel] | Patches are stored in the packaging component. |
-| tests | Test code. | [Kata 2.x](https://github.com/kata-containers/tests/tree/main) | [Kata 1.x](https://github.com/kata-containers/tests/tree/master) | Excludes unit tests which live with the main code. |
-| www.katacontainers.io | Contains the source for the [main web site](https://www.katacontainers.io). | [Kata 2.x][github-katacontainers.io] | [Kata 1.x][github-katacontainers.io] | | |
+| [packaging](tools/packaging) | infrastructure | Scripts and metadata for producing packaged binaries<br/>(components, hypervisors, kernel and rootfs). |
+| [kernel](https://www.kernel.org) | kernel | Linux kernel used by the hypervisor to boot the guest image. Patches are stored [here](tools/packaging/kernel). |
+| [osbuilder](tools/osbuilder) | infrastructure | Tool to create "mini O/S" rootfs and initrd images and kernel for the hypervisor. |
+| [`agent-ctl`](tools/agent-ctl) | utility | Tool that provides low-level access for testing the agent. |
+| [`trace-forwarder`](src/trace-forwarder) | utility | Agent tracing helper. |
+| [`ci`](https://github.com/kata-containers/ci) | CI | Continuous Integration configuration files and scripts. |
+| [`katacontainers.io`](https://github.com/kata-containers/www.katacontainers.io) | Source for the [`katacontainers.io`](https://www.katacontainers.io) site. |
 
 ### Packaging and releases
 

docs/Developer-Guide.md

@@ -1,56 +1,3 @@
-- [Warning](#warning)
-- [Assumptions](#assumptions)
-- [Initial setup](#initial-setup)
-- [Requirements to build individual components](#requirements-to-build-individual-components)
-- [Build and install the Kata Containers runtime](#build-and-install-the-kata-containers-runtime)
-- [Check hardware requirements](#check-hardware-requirements)
-  - [Configure to use initrd or rootfs image](#configure-to-use-initrd-or-rootfs-image)
-  - [Enable full debug](#enable-full-debug)
-    - [debug logs and shimv2](#debug-logs-and-shimv2)
-      - [Enabling full `containerd` debug](#enabling-full-containerd-debug)
-      - [Enabling just `containerd shim` debug](#enabling-just-containerd-shim-debug)
-      - [Enabling `CRI-O` and `shimv2` debug](#enabling-cri-o-and-shimv2-debug)
-    - [journald rate limiting](#journald-rate-limiting)
-      - [`systemd-journald` suppressing messages](#systemd-journald-suppressing-messages)
-      - [Disabling `systemd-journald` rate limiting](#disabling-systemd-journald-rate-limiting)
-- [Create and install rootfs and initrd image](#create-and-install-rootfs-and-initrd-image)
-  - [Build a custom Kata agent - OPTIONAL](#build-a-custom-kata-agent---optional)
-  - [Get the osbuilder](#get-the-osbuilder)
-  - [Create a rootfs image](#create-a-rootfs-image)
-    - [Create a local rootfs](#create-a-local-rootfs)
-    - [Add a custom agent to the image - OPTIONAL](#add-a-custom-agent-to-the-image---optional)
-    - [Build a rootfs image](#build-a-rootfs-image)
-    - [Install the rootfs image](#install-the-rootfs-image)
-  - [Create an initrd image - OPTIONAL](#create-an-initrd-image---optional)
-    - [Create a local rootfs for initrd image](#create-a-local-rootfs-for-initrd-image)
-    - [Build an initrd image](#build-an-initrd-image)
-    - [Install the initrd image](#install-the-initrd-image)
-- [Install guest kernel images](#install-guest-kernel-images)
-- [Install a hypervisor](#install-a-hypervisor)
-  - [Build a custom QEMU](#build-a-custom-qemu)
-    - [Build a custom QEMU for aarch64/arm64 - REQUIRED](#build-a-custom-qemu-for-aarch64arm64---required)
-- [Run Kata Containers with Containerd](#run-kata-containers-with-containerd)
-- [Run Kata Containers with Kubernetes](#run-kata-containers-with-kubernetes)
-- [Troubleshoot Kata Containers](#troubleshoot-kata-containers)
-- [Appendices](#appendices)
-  - [Checking Docker default runtime](#checking-docker-default-runtime)
-  - [Set up a debug console](#set-up-a-debug-console)
-    - [Simple debug console setup](#simple-debug-console-setup)
-      - [Enable agent debug console](#enable-agent-debug-console)
-      - [Start `kata-monitor` - ONLY NEEDED FOR 2.0.x](#start-kata-monitor---only-needed-for-20x)
-      - [Connect to debug console](#connect-to-debug-console)
-    - [Traditional debug console setup](#traditional-debug-console-setup)
-      - [Create a custom image containing a shell](#create-a-custom-image-containing-a-shell)
-      - [Build the debug image](#build-the-debug-image)
-      - [Configure runtime for custom debug image](#configure-runtime-for-custom-debug-image)
-      - [Create a container](#create-a-container)
-      - [Connect to the virtual machine using the debug console](#connect-to-the-virtual-machine-using-the-debug-console)
-        - [Enabling debug console for QEMU](#enabling-debug-console-for-qemu)
-        - [Enabling debug console for cloud-hypervisor / firecracker](#enabling-debug-console-for-cloud-hypervisor--firecracker)
-        - [Connecting to the debug console](#connecting-to-the-debug-console)
-  - [Obtain details of the image](#obtain-details-of-the-image)
-  - [Capturing kernel boot logs](#capturing-kernel-boot-logs)
-
 # Warning
 
 This document is written **specifically for developers**: it is not intended for end users.

docs/Documentation-Requirements.md

@@ -1,16 +1,3 @@
-* [Introduction](#introduction)
-* [General requirements](#general-requirements)
-* [Linking advice](#linking-advice)
-* [Notes](#notes)
-* [Warnings and other admonitions](#warnings-and-other-admonitions)
-* [Files and command names](#files-and-command-names)
-* [Code blocks](#code-blocks)
-* [Images](#images)
-* [Spelling](#spelling)
-* [Names](#names)
-* [Version numbers](#version-numbers)
-* [The apostrophe](#the-apostrophe)
-
 # Introduction
 
 This document outlines the requirements for all documentation in the [Kata
@@ -23,10 +10,6 @@ All documents must:
 - Be written in simple English.
 - Be written in [GitHub Flavored Markdown](https://github.github.com/gfm) format.
 - Have a `.md` file extension.
-- Include a TOC (table of contents) at the top of the document with links to
-  all heading sections. We recommend using the
-  [`kata-check-markdown`](https://github.com/kata-containers/tests/tree/main/cmd/check-markdown)
-  tool to generate the TOC.
 - Be linked to from another document in the same repository.
 
   Although GitHub allows navigation of the entire repository, it should be
@@ -43,6 +26,10 @@ All documents must:
   which can then execute the commands specified to ensure the instructions are
   correct. This avoids documents becoming out of date over time.
 
+> **Note:**
+>
+> Do not add a table of contents (TOC) since GitHub will auto-generate one.
+
 # Linking advice
 
 Linking between documents is strongly encouraged to help users and developers

docs/Licensing-strategy.md

@@ -1,9 +1,5 @@
 # Licensing strategy
 
-* [Project License](#project-license)
-* [License file](#license-file)
-* [License for individual files](#license-for-individual-files)      
-
 ## Project License
 
 The license for the [Kata Containers](https://github.com/kata-containers)

docs/Limitations.md

@@ -1,35 +1,3 @@
-* [Overview](#overview)
-* [Definition of a limitation](#definition-of-a-limitation)
-* [Scope](#scope)
-* [Contributing](#contributing)
-* [Pending items](#pending-items)
-    * [Runtime commands](#runtime-commands)
-        * [checkpoint and restore](#checkpoint-and-restore)
-        * [events command](#events-command)
-        * [update command](#update-command)
-    * [Networking](#networking)
-        * [Docker swarm and compose support](#docker-swarm-and-compose-support)
-    * [Resource management](#resource-management)
-        * [docker run and shared memory](#docker-run-and-shared-memory)
-        * [docker run and sysctl](#docker-run-and-sysctl)
-    * [Docker daemon features](#docker-daemon-features)
-        * [SELinux support](#selinux-support)
-* [Architectural limitations](#architectural-limitations)
-    * [Networking limitations](#networking-limitations)
-        * [Support for joining an existing VM network](#support-for-joining-an-existing-vm-network)
-        * [docker --net=host](#docker---nethost)
-        * [docker run --link](#docker-run---link)
-    * [Storage limitations](#storage-limitations)
-        * [Kubernetes `volumeMounts.subPaths`](#kubernetes-volumemountssubpaths)
-    * [Host resource sharing](#host-resource-sharing)
-        * [docker run --privileged](#docker-run---privileged)
-* [Miscellaneous](#miscellaneous)
-    * [Docker --security-opt option partially supported](#docker---security-opt-option-partially-supported)
-* [Appendices](#appendices)
-    * [The constraints challenge](#the-constraints-challenge)
-
-***
-
 # Overview
 
 A [Kata Container](https://github.com/kata-containers) utilizes a Virtual Machine (VM) to enhance security and

docs/README.md

@@ -1,16 +1,5 @@
 # Documentation
 
-* [Getting Started](#getting-started)
-* [More User Guides](#more-user-guides)
-* [Kata Use-Cases](#kata-use-cases)
-* [Developer Guide](#developer-guide)
-    * [Design and Implementations](#design-and-implementations)
-    * [How to Contribute](#how-to-contribute)
-    * [Code Licensing](#code-licensing)
-    * [The Release Process](#the-release-process)
-* [Help Improving the Documents](#help-improving-the-documents)
-* [Website Changes](#website-changes)
-
 The [Kata Containers](https://github.com/kata-containers)
 documentation repository hosts overall system documentation, with information
 common to multiple components.

docs/Release-Process.md

@@ -1,20 +1,6 @@
-
 # How to do a Kata Containers Release
   This document lists the tasks required to create a Kata Release.
 
-<!-- TOC START min:1 max:3 link:true asterisk:false update:true -->
-- [How to do a Kata Containers Release](#how-to-do-a-kata-containers-release)
-  - [Requirements](#requirements)
-  - [Release Process](#release-process)
-    - [Bump all Kata repositories](#bump-all-kata-repositories)
-    - [Merge all bump version Pull requests](#merge-all-bump-version-pull-requests)
-    - [Tag all Kata repositories](#tag-all-kata-repositories)
-    - [Check Git-hub Actions](#check-git-hub-actions)
-    - [Create release notes](#create-release-notes)
-    - [Announce the release](#announce-the-release)
-<!-- TOC END -->
-
-
 ## Requirements
 
 - [hub](https://github.com/github/hub)

docs/Upgrading.md

@@ -1,16 +1,3 @@
-* [Introduction](#introduction)
-* [Maintenance warning](#maintenance-warning)
-* [Determine current version](#determine-current-version)
-* [Determine latest version](#determine-latest-version)
-* [Configuration changes](#configuration-changes)
-* [Upgrade Kata Containers](#upgrade-kata-containers)
-    * [Upgrade native distribution packaged version](#upgrade-native-distribution-packaged-version)
-    * [Static installation](#static-installation)
-        * [Determine if you are using a static installation](#determine-if-you-are-using-a-static-installation)
-        * [Remove a static installation](#remove-a-static-installation)
-        * [Upgrade a static installation](#upgrade-a-static-installation)
-* [Custom assets](#custom-assets)
-
 # Introduction
 
 This document outlines the options for upgrading from a

docs/design/VSocks.md

@@ -1,12 +1,5 @@
 # Kata Containers and VSOCKs
 
-- [Introduction](#introduction)
-    - [VSOCK communication diagram](#vsock-communication-diagram)
-- [System requirements](#system-requirements)
-- [Advantages of using VSOCKs](#advantages-of-using-vsocks)
-    - [High density](#high-density)
-    - [Reliability](#reliability)
-
 ## Introduction
 
 There are two different ways processes in the virtual machine can communicate

docs/design/architecture.md

@@ -1,26 +1,5 @@
 # Kata Containers Architecture
 
-
-- [Kata Containers Architecture](#kata-containers-architecture)
-  - [Overview](#overview)
-  - [Virtualization](#virtualization)
-  - [Guest assets](#guest-assets)
-    - [Guest kernel](#guest-kernel)
-    - [Guest image](#guest-image)
-      - [Root filesystem image](#root-filesystem-image)
-      - [Initrd image](#initrd-image)
-  - [Agent](#agent)
-  - [Runtime](#runtime)
-    - [Configuration](#configuration)
-  - [Networking](#networking)
-    - [Network Hotplug](#network-hotplug)
-  - [Storage](#storage)
-  - [Kubernetes support](#kubernetes-support)
-      - [OCI annotations](#oci-annotations)
-      - [Mixing VM based and namespace based runtimes](#mixing-vm-based-and-namespace-based-runtimes)
-- [Appendices](#appendices)
-  - [DAX](#dax)
-
 ## Overview
 
 This is an architectural overview of Kata Containers, based on the 2.0 release.

docs/design/end-to-end-flow.md

@@ -1,4 +1,3 @@
 # Kata Containers E2E Flow
 
-
 ![Kata containers e2e flow](arch-images/katacontainers-e2e-with-bg.jpg)

docs/design/host-cgroups.md

@@ -1,18 +1,3 @@
-- [Host cgroup management](#host-cgroup-management)
-  - [Introduction](#introduction)
-  - [`SandboxCgroupOnly` enabled](#sandboxcgrouponly-enabled)
-    - [What does Kata do in this configuration?](#what-does-kata-do-in-this-configuration)
-    - [Why create a Kata-cgroup under the parent cgroup?](#why-create-a-kata-cgroup-under-the-parent-cgroup)
-    - [Improvements](#improvements)
-  - [`SandboxCgroupOnly` disabled (default, legacy)](#sandboxcgrouponly-disabled-default-legacy)
-    - [What does this method do?](#what-does-this-method-do)
-      - [Impact](#impact)
-- [Supported cgroups](#supported-cgroups)
-  - [Cgroups V1](#cgroups-v1)
-  - [Cgroups V2](#cgroups-v2)
-    - [Distro Support](#distro-support)
-- [Summary](#summary)
-
 # Host cgroup management
 
 ## Introduction