Fedora 42
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Podman : Generate Systemd unit file2025/04/25
 

It's possible to generate Systemd unit file and set auto-starting for containers.

[1] Configure container service by using Quadlet.
[root@dlp ~]#
podman images 

REPOSITORY                         TAG               IMAGE ID      CREATED         SIZE
localhost/podman-pause             5.4.2-1743552000  44beb5bc0a3a  30 minutes ago  776 kB
srv.world/iproute                  latest            aa9549af2c42  2 hours ago     258 MB
docker.io/library/root-web         latest            6b8099ee8b9d  3 hours ago     325 MB
srv.world/fedora-nginx             latest            ad26e76247bd  3 hours ago     325 MB
srv.world/fedora-httpd             latest            512d39041a55  3 hours ago     328 MB
registry.fedoraproject.org/fedora  latest            e5bf03515e92  25 hours ago    166 MB
docker.io/library/mariadb          latest            9f3d79eba61e  2 months ago    334 MB
# file name ⇒ (any name).container

[root@dlp ~]#
vi /etc/containers/systemd/fedora-nginx.container 
[Unit]
Description=Nginx container
After=local-fs.target

[Container]
# any name
ContainerName=fedora-nginx
# container image to be used
Image=srv.world/fedora-nginx
# port
PublishPort=80:80

[Service]
Restart=always

[Install]
WantedBy=multi-user.target default.target
[root@dlp ~]#
systemctl daemon-reload

[root@dlp ~]#
systemctl start fedora-nginx.service
[2] Configure pod service by using Quadlet.
[root@dlp ~]#
podman images 

REPOSITORY                         TAG               IMAGE ID      CREATED         SIZE
localhost/podman-pause             5.4.2-1743552000  44beb5bc0a3a  31 minutes ago  776 kB
srv.world/iproute                  latest            aa9549af2c42  2 hours ago     258 MB
docker.io/library/root-web         latest            6b8099ee8b9d  3 hours ago     325 MB
srv.world/fedora-nginx             latest            ad26e76247bd  3 hours ago     325 MB
srv.world/fedora-httpd             latest            512d39041a55  3 hours ago     328 MB
registry.fedoraproject.org/fedora  latest            e5bf03515e92  25 hours ago    166 MB
docker.io/library/mariadb          latest            9f3d79eba61e  2 months ago    334 MB
# create pod configuration file
# format is the same as Kubernetes

[root@dlp ~]#
vi /etc/containers/systemd/nginx-pod.yml 
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-pod
  labels:
    name: nginx-pod
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nginx-pod
  template:
    metadata:
      labels:
        app: nginx-pod
    spec:
      containers:
      - name: nginx-pod
        image: fedora-nginx
        ports:
          - name: web
            containerPort: 80
# file name ⇒ (any name).kube

[root@dlp ~]#
vi /etc/containers/systemd/nginx-pod.kube 
[Unit]
Description=Web service pod
After=local-fs.target

[Kube]
Yaml=/etc/containers/systemd/nginx-pod.yml
PublishPort=80:80

[Service]
Restart=always

[Install]
WantedBy=multi-user.target default.target
[root@dlp ~]#
systemctl daemon-reload

[root@dlp ~]#
systemctl start nginx-pod.service
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