Building an image requires systemd to be installed in the rootfs as the
init daemon, so assert that systemd is available.
Updated tests so that alpine is only tested as an initrd (it cannot be
an image as it doesn't use systemd).
Added warning note about alpine to the docs.
Fixes#98.
Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
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>
To simplify maintaince, create dockerfiles based on templates.
This way when golang version is updated it will be done in one place
versions.txt.
This also allow to allways intall the same version of golang in any
dockerfile.
Signed-off-by: Jose Carlos Venegas Munoz <jose.carlos.venegas.munoz@intel.com>
