meta-virtualization-extra

Use podman to pull and add images to local registry

Pull an image.

podman pull alpine

Tag it for local registry.

podman tag alpine localhost:5000/alpine

Push it to local registry.

podman push localhost:5000/alpine

Remove upstream image.

podman image rm alpine

Run image from local registry.

podman run -it localhost:5000/alpine /bin/sh

Use skopeo to add images to local registry from USB

Pull alpine arm64 image and save as .tar to USB drive.

skopeo copy --override-arch arm64 docker://alpine:latest docker-archive:/media/$(whoami)/USB\ DISK/alpine-arm64.tar

Check what was saved.

skopeo inspect docker-archive:/media/$(whoami)/USB\ DISK/alpine-arm64.tar 

Should be something like:

{
    "Digest": "sha256:058c92d86112aa6f641b01ed238a07a3885b8c0815de3e423e5c5f789c398b45",
    "RepoTags": [],
    "Created": "2025-02-14T03:28:36Z",
    "DockerVersion": "",
    "Labels": null,
    "Architecture": "arm64",
    "Os": "linux",
    "Layers": [
        "sha256:a16e98724c05975ee8c40d8fe389c3481373d34ab20a1cf52ea2accc43f71f4c"
    ],
    "LayersData": [
        {
            "MIMEType": "application/vnd.docker.image.rootfs.diff.tar.gzip",
            "Digest": "sha256:a16e98724c05975ee8c40d8fe389c3481373d34ab20a1cf52ea2accc43f71f4c",
            "Size": 8461312,
            "Annotations": null
        }
    ],
    "Env": [
        "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
    ]
}

Load .tar from USB drive into targets local registry.

skopeo copy docker-archive:/mnt/usb/alpine-arm64.tar docker://localhost:5000/alpine:latest

Verify image is local registry.

curl -X GET https://localhost:5000/v2/_catalog

Should output something like:

{"repositories":["alpine"]}

And:

curl -X GET https://localhost:5000/v2/alpine/tags/list

Should output something like:

{"name":"alpine","tags":["latest"]}

Now run alpine container from local registry.

podman run -it localhost:5000/alpine /bin/sh

Run nebula lighthouse in container

sudo podman run -d --name nebula --network host --cap-add NET_ADMIN --device=/dev/net/tun --volume /home/$(whoami)/.nebula/lighthouse/keys:/etc/nebula --volume /home/$(whoami)/.nebula/lighthouse/config:/config docker.io/nebulaoss/nebula:latest