can't ping use service name

[h25302]

docker-compose.yml:

version: '3.9'

services:
  db:
    image: mariadb
    container_name: db
    ports:
      - '3306:3306'
    restart: always

  busybox:
    image: busybox
    container_name: busybox
    tty: 'true'
    restart: unless-stopped

podman-compose up -d:

podman-compose version: 1.0.4
['podman', '--version', '']
using podman version: 4.1.1
** excluding:  set()
['podman', 'ps', '--filter', 'label=io.podman.compose.project=yhit', '-a', '--format', '{{ index .Labels "io.podman.compose.config-hash"}}']
podman pod create --name=pod_yhit --infra=false --share=
81b98fd4f3f4cdb731f2e59824da97f95932f207bb31a32d60c5b5ff52ff2fff
exit code: 0
['podman', 'network', 'exists', 'yhit_default']
podman run --name=db -d --pod=pod_yhit --label io.podman.compose.config-hash=f28cb40f52bbd6253bb2e0878382697287ff9ef94b83561cb7eac3c6142c34f7 --label io.podman.compose.project=yhit --label io.podman.compose.version=1.0.4 --label [email protected] --label com.docker.compose.project=yhit --label com.docker.compose.project.working_dir=/chy/podman/yhit --label com.docker.compose.project.config_files=docker-compose.yml --label com.docker.compose.container-number=1 --label com.docker.compose.service=db --net yhit_default --network-alias db -p 3306:3306 --restart always mariadb
92a09bf4160de180b88a771424dfdc91e6a97f91fbb34c17d5ae3b87ade3476a
exit code: 0
['podman', 'network', 'exists', 'yhit_default']
podman run --name=busybox -d --pod=pod_yhit --label io.podman.compose.config-hash=f28cb40f52bbd6253bb2e0878382697287ff9ef94b83561cb7eac3c6142c34f7 --label io.podman.compose.project=yhit --label io.podman.compose.version=1.0.4 --label [email protected] --label com.docker.compose.project=yhit --label com.docker.compose.project.working_dir=/chy/podman/yhit --label com.docker.compose.project.config_files=docker-compose.yml --label com.docker.compose.container-number=1 --label com.docker.compose.service=busybox --net yhit_default --network-alias busybox --tty --restart unless-stopped busybox
1196833e780a0a8694ca313742103da4c778a06a96470b6571f48c3f3d3ca6b6
exit code: 0

but run
podman exec -it busybox ping db:

ping: bad address 'db'

Sorry, my English is poor. I hope you can understand what I mean

[leonidas-o]

@Yhit Don't know about your settings or the default settings, but how I run It, definitely works. I also switched from cni to the new netavark network backend.
So you can try the following (will post all commands, I guess you have the first part done already, but it maybe could help others):

sudo su -
dnf install podman python3-pip netavark aardvark-dns

As non-root user:

pip3 install --user podman-compose

After installation, if you would like to migrate all your containers to use Netavark, you must set network_backend = "netavark" under the [network] section in your containers.conf, typically located under /usr/share/containers/containers.conf.

podman info --format {{.Host.NetworkBackend}} # shows you the current setting
sudo vi /usr/share/containers/containers.conf # set network_backend = "netavark"
podman info --format {{.Host.NetworkBackend}}

Maybe you have to log out of the current session and log in again, not sure here anymore.

podman network create newnetwork
podman network inspect podman # default podman network "dns_enabled": false
podman network inspect newnetwork # newly created network "dns_enabled": true

Containers can be joined to a network when they are created with the --network flag, or after they are created via the podman network connect and podman network disconnect commands.

[h25302]

@leonidas-o
Thank you, thank you, thanks again.
I'm so happy.
It's finally working properly.