Debian 11 Bullseye
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Podman : Create Pods2021/08/28

 
Create Pods like Kubernetes.
[1] Create a Pod and add a Container to it.
# create an empty pod

# -p [bind port] -n [pod name]

root@dlp:~#
podman pod create -p 8081:80 -n test-pod

01d10e5c8a5ab59a0cc11d297d3ee660ef689bfc3b4af94fec6dee7ce9259d00

# show pods

root@dlp:~#
podman pod ls

POD ID        NAME      STATUS   CREATED         INFRA ID      # OF CONTAINERS
01d10e5c8a5a  test-pod  Created  18 seconds ago  01547bd444b4  1

# show details of pod

root@dlp:~#
podman pod inspect test-pod

{
     "Id": "01d10e5c8a5ab59a0cc11d297d3ee660ef689bfc3b4af94fec6dee7ce9259d00",
     "Name": "test-pod",
     "Created": "2021-08-27T08:12:25.666649399-05:00",
     "CreateCommand": [
          "podman",
          "pod",
          "create",
          "-p",
          "8081:80",
          "-n",
          "test-pod"
     ],
     "State": "Created",
     "Hostname": "test-pod",
     "CreateCgroup": true,
     "CgroupParent": "machine.slice",
     "CgroupPath": "machine.slice/machine-libpod_pod_01d10e5c8a5ab59a0cc11d297d3ee660ef689bfc3b4af94fec6dee7ce9259d00.slice",
     "CreateInfra": true,
     "InfraContainerID": "01547bd444b458fa49afd82c39a72ca494378cd513940cc7b0b0547c2678c2b4",
     "InfraConfig": {
          "PortBindings": {
               "80/tcp": [
     {
          "HostIp": "",
          "HostPort": "8081"
     }
]
          },
          "HostNetwork": false,
          "StaticIP": "",
          "StaticMAC": "",
          "NoManageResolvConf": false,
          "DNSServer": null,
          "DNSSearch": null,
          "DNSOption": null,
          "NoManageHosts": false,
          "HostAdd": null,
          "Networks": null,
          "NetworkOptions": null
     },
     "SharedNamespaces": [
          "net",
          "uts",
          "ipc"
     ],
     "NumContainers": 1,
     "Containers": [
          {
               "Id": "01547bd444b458fa49afd82c39a72ca494378cd513940cc7b0b0547c2678c2b4",
               "Name": "01d10e5c8a5a-infra",
               "State": "configured"
          }
     ]
}

root@dlp:~#
podman images

REPOSITORY                  TAG     IMAGE ID      CREATED        SIZE
srv.world/debian-nginx      latest  37125087a75f  5 hours ago    216 MB
srv.world/debian-apache2    latest  68a7269c5457  5 hours ago    260 MB
docker.io/library/debian    latest  fe3c5de03486  10 days ago    129 MB
docker.io/library/registry  2       1fd8e1b0bb7e  4 months ago   26.8 MB
k8s.gcr.io/pause            3.2     80d28bedfe5d  18 months ago  688 kB

# run container and add it to pod

root@dlp:~#
podman run -dt --pod test-pod srv.world/debian-nginx

0c2c5933cf1c4b873b37eba8ea9f20846953614a46a54e5dc9d7bf6d7dfb80ab

root@dlp:~#
podman ps

CONTAINER ID  IMAGE                   COMMAND               CREATED        STATUS            PORTS                 NAMES
01547bd444b4  k8s.gcr.io/pause:3.2                          9 minutes ago  Up 4 minutes ago  0.0.0.0:8081->80/tcp  01d10e5c8a5a-infra
0c2c5933cf1c  srv.world/debian-nginx  /usr/sbin/nginx -...  4 minutes ago  Up 4 minutes ago  0.0.0.0:8081->80/tcp  fervent_dewdney

# verify accesses

root@dlp:~#
curl localhost:8081

Podman Test on Nginx
# stop pod

root@dlp:~#
podman pod stop test-pod

01d10e5c8a5ab59a0cc11d297d3ee660ef689bfc3b4af94fec6dee7ce9259d00

# remove pod (removed containers all)

root@dlp:~#
podman pod rm test-pod --force

01d10e5c8a5ab59a0cc11d297d3ee660ef689bfc3b4af94fec6dee7ce9259d00
[2] It's possible to create Pod and add Container with one command.
root@dlp:~#
podman images

REPOSITORY                  TAG     IMAGE ID      CREATED        SIZE
srv.world/debian-nginx      latest  37125087a75f  5 hours ago    216 MB
srv.world/debian-apache2    latest  68a7269c5457  5 hours ago    260 MB
docker.io/library/debian    latest  fe3c5de03486  10 days ago    129 MB
docker.io/library/registry  2       1fd8e1b0bb7e  4 months ago   26.8 MB
k8s.gcr.io/pause            3.2     80d28bedfe5d  18 months ago  688 kB

# create a [test_pod2] pod and add [srv.world/debian-nginx] container

root@dlp:~#
podman run -dt --pod new:test-pod2 -p 80:80 -p 3306:3306 srv.world/debian-nginx

65f3e3b9bdfe9235f3b9e7ec6ff6d77dd7e28a7d45772858b0436876d2a4334e

root@dlp:~#
podman pod ls

POD ID        NAME       STATUS   CREATED             INFRA ID      # OF CONTAINERS
a8d444adc7a8  test-pod2  Running  About a minute ago  c6fa24807d1b  2

root@dlp:~#
podman ps

CONTAINER ID  IMAGE                   COMMAND               CREATED        STATUS            PORTS                                       NAMES
c6fa24807d1b  k8s.gcr.io/pause:3.2                          4 minutes ago  Up 4 minutes ago  0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp  a8d444adc7a8-infra
65f3e3b9bdfe  srv.world/debian-nginx  /usr/sbin/nginx -...  4 minutes ago  Up 4 minutes ago  0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp  xenodochial_wing

# run [mariadb] container and add it to the [test-pod2]

root@dlp:~#
podman run -dt --pod test-pod2 -e MYSQL_ROOT_PASSWORD=Password docker.io/library/mariadb

035b03d1f9736be45e4e5d44e6e637ec6fdfd0e519324be523c1e91d52402fab

root@dlp:~#
podman ps

CONTAINER ID  IMAGE                             COMMAND               CREATED         STATUS             PORTS                                       NAMES
c6fa24807d1b  k8s.gcr.io/pause:3.2                                    16 minutes ago  Up 16 minutes ago  0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp  a8d444adc7a8-infra
65f3e3b9bdfe  srv.world/debian-nginx            /usr/sbin/nginx -...  16 minutes ago  Up 16 minutes ago  0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp  xenodochial_wing
035b03d1f973  docker.io/library/mariadb:latest  mysqld                6 minutes ago   Up 6 minutes ago   0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp  elated_saha

root@dlp:~#
curl dlp.srv.world

Dockerfile Test on Nginx
root@dlp:~#
mysql -u root -p -h dlp.srv.world -e "show variables like 'hostname';"

Enter password:
+---------------+-----------+
| Variable_name | Value     |
+---------------+-----------+
| hostname      | test-pod2 |
+---------------+-----------+
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