Podman : Create Pods2021/08/28 |
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Create Pods like Kubernetes.
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| [1] | Create a Pod and add a Container to it. |
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# 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 0c2c5933cf1c4b873b37eba8ea9f20846953614a46a54e5dc9d7bf6d7dfb80abroot@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. |
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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 65f3e3b9bdfe9235f3b9e7ec6ff6d77dd7e28a7d45772858b0436876d2a4334eroot@dlp:~# podman pod ls POD ID NAME STATUS CREATED INFRA ID # OF CONTAINERS a8d444adc7a8 test-pod2 Running About a minute ago c6fa24807d1b 2root@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 035b03d1f9736be45e4e5d44e6e637ec6fdfd0e519324be523c1e91d52402fabroot@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:~#
root@dlp:~# curl dlp.srv.world Dockerfile Test on Nginx 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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