Zend certified PHP/Magento developer

Podman macvlan network error

Prerequisites

I am trying to migrate from docker to podman for production use of some containers. Some of my containers are in need to be assigned IP adresses from a DHCP server in my network, as such I used docker-net-dhcp.

Now, as I understand, while it cannot be used in docker to do this, the macvlan driver in podman can.

Steps to reproduce

Here are the steps I have done so far:

  1. Ensure my (physical) network interface exists:
    ip addr show enp7s0
    2: enp7s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group 
     default qlen 1000
    link/ether 50:e5:49:36:fd:ee brd ff:ff:ff:ff:ff:ff
    inet 10.0.1.115/24 brd 10.0.1.255 scope global dynamic enp7s0
       valid_lft 59635sec preferred_lft 59635sec
    inet 10.0.1.22/24 brd 10.0.1.255 scope global secondary dynamic enp7s0:1002
       valid_lft 59635sec preferred_lft 59635sec
    [ipv6 ommitted]
    
  2. Create the podman network:
    sudo podman network create -d macvlan -o parent=enp7s0 newnet
    

    and verify

    sudo podman network inspect newnet
    [
        {
            "name": "newnet",
            "id": "884e74728f045cb5209bbaf5e5cf35f1ab7640b11e74ec988fc08ddf97575cf7",
            "driver": "macvlan",
            "network_interface": "enp7s0",
            "created": "2022-06-19T16:45:29.660485744+02:00",
            "ipv6_enabled": false,
            "internal": false,
            "dns_enabled": false,
            "ipam_options": {
                "driver": "dhcp"
            }
        }
    ]
    
  3. Try setting up a test container from a minimal image, and attach it to the network newnet and ask for its ip address:
    sudo podman run -it --rm --net newnet alpine ip addr
    WARN[0000] Failed to load cached network config: network newnet not found in CNI cache, falling back to loading network newnet from disk
    WARN[0000] 1 error occurred:
     * plugin type="macvlan" failed (delete): cni plugin macvlan failed: error dialing DHCP daemon: dial unix /run/cni/dhcp.sock: connect: no such file or directory
    
    Error: plugin type="macvlan" failed (add): cni plugin macvlan failed: error dialing DHCP daemon: dial unix /run/cni/dhcp.sock: connect: no such file or directory
    

Problem Statement

While I obviously can see what went wrong here, I don’t have any idea how to fix it. Can you point me in the right direction?

Additional Information

Debian version

sudo lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description:    Debian GNU/Linux 11 (bullseye)
Release: 11
Codename:       bullseye

Installed Packages (shortened to relevant ones)

sudo apt list --installed
Listing... Done
containerd.io/bullseye,now 1.6.6-1 amd64 [installed]
containernetworking-plugins/unknown,now 100:1.1.1-1 amd64 [installed]
containernetworking/unknown,now 100:1.1.1-1 amd64 [installed,automatic]
containers-common/unknown,now 100:0.48.0-1 amd64 [installed,automatic]
podman/unknown,now 100:4.1.1-1 amd64 [installed]
python3-podman-compose/unknown,now 100:1.0.3-1 all [installed]
python3/stable,now 3.9.2-3 amd64 [installed]

Podman

sudo podman --version
podman version 4.1.1