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James O. D. Hunt f90f65247e rootfs: Create a summary file inside the image 
Create a YAML metadata file inside the rootfs image
containing information about the environment:

```
/var/lib/osbuilder/osbuilder.yaml
```

Example contents:

```
---
osbuilder:
  url: "https://github.com/kata-containers/osbuilder"
  version: "unknown"
rootfs-creation-time: "2018-04-19T16:19:30.254610305+0000Z"
description: "osbuilder rootfs"
file-format-version: "0.0.1"
architecture: "x86_64"
base-distro:
  name: "Centos"
  version: "7"
  packages:
    - "iptables"
    - "systemd"
agent:
  url: "https://github.com/kata-containers/agent"
  name: "kata-agent"
  version: "0.0.1-2ec0b9593845b9a5e0eab5a85b20d74c35a2ca52-dirty"
  agent-is-init-daemon: "no"
```

This change adds a new `-o` option to `rootfs.sh` for
specifying the version of osbuilder to the rootfs builder.

Fixes #35.

Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
2018-04-20 11:46:55 +01:00
.ci rootfs: Create a summary file inside the image 2018-04-20 11:46:55 +01:00
image-builder rootfs: Create a summary file inside the image 2018-04-20 11:46:55 +01:00
initrd-builder initrd: Remove mention of USE_DOCKER 2018-04-20 11:17:02 +01:00
rootfs-builder rootfs: Create a summary file inside the image 2018-04-20 11:46:55 +01:00
scripts rootfs: Create a summary file inside the image 2018-04-20 11:46:55 +01:00
tests rootfs: Create a summary file inside the image 2018-04-20 11:46:55 +01:00
.pullapprove.yml CI: Require doc team signoff for doc changes 2018-01-24 12:11:48 +00:00
.travis.yml CI: enable agent as init process and kata initrd tests 2018-02-01 23:27:40 +08:00
CODE_OF_CONDUCT.md CoC: Add Code of Conduct 2017-12-04 23:35:38 +01:00
CONTRIBUTING.md Docs : Add minimal contribution guidelines 2018-01-30 22:01:48 +05:30
LICENSE Initial commit 2017-11-13 12:24:56 +01:00
Makefile rootfs: Create a summary file inside the image 2018-04-20 11:46:55 +01:00
README.md Merge pull request #49 from bergwolf/agent_init 2018-02-05 09:11:17 +00:00
VERSION rootfs: Create a summary file inside the image 2018-04-20 11:46:55 +01:00

README.md

osbuilder Build Status

The Kata Containers runtime creates a virtual machine (VM) to isolate a set of container workloads. The VM requires a guest kernel and a guest operating system ("guest OS") to boot and create containers inside the guest environment.

This repository contains tools to create a guest OS disk image.

Table of Contents

Terms

This section describes the terms used for all documentation in this repository.

  • rootfs

    The root filesystem or "rootfs" is the set of files contained in the guest root directory that builds into a filesystem.

    See the rootfs builder documentation.

  • "Guest OS" (or "Guest Image")

    A "virtual disk" or "disk image" built from a rootfs. It contains a filesystem that is used by the VM, in conjunction with a guest kernel, to create an environment to host the container. Neither the guest OS nor the guest kernel need to be the same as the host operating system.

    See the image builder documentation.

  • initrd (or "initramfs")

    A compressed cpio archive loaded into memory and used as part of the Linux startup process. During startup, the kernel unpacks it into a special instance of a tmpfs that becomes the initial root file system.

    See the initrd builder documentation.

  • "Base OS"

    A particular version of a Linux distribution used to create a Guest OS from.