Why don't docker containers see each other by name?

Question

Docker

Hello everyone, I can not understand why the containers do not see each other by name.
Oracle Linux 8
Docker Compose version v2.2.3
Podman version 3.3.1

Runs through Docker Compose.

version: "3.7"
services:

  php:
    container_name: unit
    image: unit:1.26.1
    ports:
      - "8080:8080"
    volumes:
      - ./www/:/var/www/
    restart: unless-stopped
    hostname: hostname-unit

  web:
    container_name: nginx
    image: nginx:1.21.5
    ports:
      - "80:80"
      - "443:443"
        volumes:
      - ./nginx/:/etc/nginx/
    links:
      - php:unit
    restart: unless-stopped
    hostname: hostname-nginx

Created and the networks and on default from DC do not want to respond by name.

#podman inspect nginx -f "{{json .NetworkSettings.Networks }}"
{
    "stack_default": {
        "EndpointID": "",
        "Gateway": "10.89.2.1",
        "IPAddress": "10.89.2.4",
        "IPPrefixLen": 24,
        "IPv6Gateway": "",
        "GlobalIPv6Address": "",
        "GlobalIPv6PrefixLen": 0,
        "MacAddress": "c6:be:a4:e2:d3:6a",
        "NetworkID": "stack_default",
        "DriverOpts": null,
        "IPAMConfig": null,
        "Links": null,
        "Aliases": ["nginx", "web"]
    }
}

#podman inspect unit -f "{{json .NetworkSettings.Networks }}"
{
    "stack_default": {
        "EndpointID": "",
        "Gateway": "10.89.2.1",
        "IPAddress": "10.89.2.5",
        "IPPrefixLen": 24,
        "IPv6Gateway": "",
        "GlobalIPv6Address": "",
        "GlobalIPv6PrefixLen": 0,
        "MacAddress": "62:fd:bc:17:87:7b",
        "NetworkID": "stack_default",
        "DriverOpts": null,
        "IPAMConfig": null,
        "Links": null,
        "Aliases": ["php", "unit"]
    }
}

#podman exec -ti nginx

/ # ping php
ping: bad address 'php'

/ # ping unit
ping: bad address 'unit'

/ # ping 10.89.2.5
PING 10.89.2.5 (10.89.2.5): 56 data bytes
64 bytes from 10.89.2.5: seq=0 ttl=64 time=0.070 ms
64 bytes from 10.89.2.5: seq=1 ttl=64 time=0.083 ms
64 bytes from 10.89.2.5: seq=2 ttl=64 time=0.069 ms
64 bytes from 10.89.2.5: seq=3 ttl=64 time=0.080 ms

/ # cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
10.89.2.4	hostname-nginx nginx
10.89.2.1 host.containers.internal

# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
10.89.2.5	hostname-unit unit
10.89.2.1 host.containers.internal

# podman network inspect stack_default
[
    {
        "args": {
            "podman_labels": {
                "com.docker.compose.network": "default",
                "com.docker.compose.project": "stack",
                "com.docker.compose.version": "2.2.3"
            }
        },
        "cniVersion": "0.4.0",
        "name": "stack_default",
        "plugins": [
            {
                "bridge": "cni-podman3",
                "hairpinMode": true,
                "ipMasq": true,
                "ipam": {
                    "ranges": [
                        [
                            {
                                "gateway": "10.89.2.1",
                                "subnet": "10.89.2.0/24"
                            }
                        ]
                    ],
                    "routes": [
                        {
                            "dst": "0.0.0.0/0"
                        }
                    ],
                    "type": "host-local"
                },
                "isGateway": true,
                "type": "bridge"
            },
            {
                "capabilities": {
                    "portMappings": true
                },
                "type": "portmap"
            },
            {
                "backend": "",
                "type": "firewall"
            },
            {
                "type": "tuning"
            }
        ]
    }
]

I also put LINKS between containers, but things are still there ....

When you start without DC, the picture does not change. When checking the network is one.

#podman inspect container_name -f "{{json .NetworkSettings.Networks }}"

For some reason, when displaying the result, there is no data on containers within the network.
#podman network inspect network_name

Answer 1

The solution has been found.
I will leave it for posterity.
Still, podman != docker
Therefore, to solve the problem, you need to put dnsname (part of podman-plugins or build) and dnsmasq.
And further in the text .
I also installed podman-compose, but it was no use :)
Thank you all for your attention.