Podman : Create Pods2021/03/22 |
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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 a empty pod # -p [bind port] -n [pod name] [root@dlp ~]# podman pod create -p 8081:80 -n test-pod 7a3c15d84979c805bb9491e2b36ffba6f251f272c04aacc5644ce62a55bd941b # show pods [root@dlp ~]# podman pod ls POD ID NAME STATUS CREATED INFRA ID # OF CONTAINERS 7a3c15d84979 test-pod Created 13 seconds ago 9926f1baf5c9 1 # show details of pod [root@dlp ~]# podman pod inspect test-pod
{
"Id": "7a3c15d84979c805bb9491e2b36ffba6f251f272c04aacc5644ce62a55bd941b",
"Name": "test-pod",
"Created": "2021-03-18T18:36:38.993800681-06:00",
"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_7a3c15d84979c805bb9491e2b36ffba6f251f272c04aacc5644ce62a55bd941b.slice",
"CreateInfra": true,
"InfraContainerID": "9926f1baf5c9e46071255c256bd9c1f3156184bf8ac6d556fd18603ebf2778a4",
"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": [
"ipc",
"net",
"uts"
],
"NumContainers": 1,
"Containers": [
{
"Id": "9926f1baf5c9e46071255c256bd9c1f3156184bf8ac6d556fd18603ebf2778a4",
"Name": "7a3c15d84979-infra",
"State": "configured"
}
]
}
[root@dlp ~]# podman images REPOSITORY TAG IMAGE ID CREATED SIZE srv.world/centos-nginx latest 3e52e21dc11c 28 seconds ago 298 MB srv.world/centos-httpd latest 10a26af7ba4d 17 hours ago 322 MB docker.io/library/registry 2 5c4008a25e05 3 weeks ago 26.8 MB registry.centos.org/centos stream8 2f3766df23b6 3 months ago 217 MB dlp.srv.world:5000/centos latest 2f3766df23b6 3 months ago 217 MB k8s.gcr.io/pause 3.2 80d28bedfe5d 13 months ago 688 kB # run container and add it to pod [root@dlp ~]# podman run -dt --pod test-pod srv.world/centos-nginx 81537ff5425547a1d706d8742a94e508051da1d34defc400d50d51261fc1570b[root@dlp ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 9926f1baf5c9 k8s.gcr.io/pause:3.2 4 minutes ago Up 17 seconds ago 0.0.0.0:8081->80/tcp 7a3c15d84979-infra 81537ff54255 srv.world/centos-nginx /usr/sbin/nginx -... 17 seconds ago Up 17 seconds ago 0.0.0.0:8081->80/tcp keen_wiles # verify accesses [root@dlp ~]# curl localhost:8081 Podman Test on Nginx # stop pod [root@dlp ~]# podman pod stop test-pod d688dbff0b271ad2fbefbfdc9259509d8877572f95983bb3f2f6b57b253bc074 # remove pod (removed containers all) [root@dlp ~]# podman pod rm test-pod --force 7a3c15d84979c805bb9491e2b36ffba6f251f272c04aacc5644ce62a55bd941b |
| [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/centos-nginx latest 3e52e21dc11c 4 minutes ago 298 MB srv.world/centos-httpd latest 10a26af7ba4d 17 hours ago 322 MB docker.io/library/mariadb latest e27cf5bc24fe 2 weeks ago 407 MB docker.io/library/registry 2 5c4008a25e05 3 weeks ago 26.8 MB registry.centos.org/centos stream8 2f3766df23b6 3 months ago 217 MB dlp.srv.world:5000/centos latest 2f3766df23b6 3 months ago 217 MB k8s.gcr.io/pause 3.2 80d28bedfe5d 13 months ago 688 kB # create a [test_pod2] pod and add [srv.world/centos-nginx] container [root@dlp ~]# podman run -dt --pod new:test-pod2 -p 80:80 -p 3306:3306 srv.world/centos-nginx 7697eb77d2409e8a0848df6c2cee61da2ae35cac12c8fdead9ca861b365ca52c[root@dlp ~]# podman pod ls POD ID NAME STATUS CREATED INFRA ID # OF CONTAINERS 8ef88b1f9422 test-pod2 Running 8 seconds ago e8050f6d7c52 2[root@dlp ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES e8050f6d7c52 k8s.gcr.io/pause:3.2 24 seconds ago Up 24 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp 8ef88b1f9422-infra 7697eb77d240 srv.world/centos-nginx /usr/sbin/nginx -... 24 seconds ago Up 24 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp zen_mclaren # run [mariadb] container and add it to the [test-pod2] [root@dlp ~]# podman run -dt --pod test-pod2 -e MYSQL_ROOT_PASSWORD=Password mariadb 89a4f4b21cb9c79290e0f1aedfd9855ea16ed95c76c5dca73b5f159c41f84519[root@dlp ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES e8050f6d7c52 k8s.gcr.io/pause:3.2 3 minutes ago Up 3 minutes ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp 8ef88b1f9422-infra 7697eb77d240 srv.world/centos-nginx /usr/sbin/nginx -... 3 minutes ago Up 3 minutes ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp zen_mclaren 89a4f4b21cb9 docker.io/library/mariadb:latest mysqld 8 seconds ago Up 9 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp tender_ramanujan
[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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