Podman : Create Pods2021/07/29 |
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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 13562711fc936c7241b75cc17766f9806ccaab0ee85235de7a8cd65963250f7a # show pods [root@dlp ~]# podman pod ls POD ID NAME STATUS CREATED INFRA ID # OF CONTAINERS 13562711fc93 test-pod Created 12 seconds ago 03f90ef7525f 1 # show details of pod [root@dlp ~]# podman pod inspect test-pod
{
"Id": "13562711fc936c7241b75cc17766f9806ccaab0ee85235de7a8cd65963250f7a",
"Name": "test-pod",
"Created": "2021-07-29T16:28:41.770122093+09:00",
"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_13562711fc936c7241b75cc17766f9806ccaab0ee85235de7a8cd65963250f7a.slice",
"CreateInfra": true,
"InfraContainerID": "03f90ef7525fbaab5573af869c9810e82d20c0bc45b35caac73daaff75541625",
"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": [
"uts",
"ipc",
"net"
],
"NumContainers": 1,
"Containers": [
{
"Id": "03f90ef7525fbaab5573af869c9810e82d20c0bc45b35caac73daaff75541625",
"Name": "13562711fc93-infra",
"State": "configured"
}
]
}
[root@dlp ~]# podman images REPOSITORY TAG IMAGE ID CREATED SIZE localhost/root_web latest a5b8f841a624 24 minutes ago 340 MB srv.world/rocky-nginx latest b11bf176fd62 About an hour ago 340 MB srv.world/rocky-httpd latest 5104875e9a87 About an hour ago 342 MB docker.io/library/mariadb latest fd17f5776802 2 days ago 416 MB registry.access.redhat.com/ubi8/pause latest 330db2d74fc3 5 weeks ago 3.49 MB docker.io/rockylinux/rockylinux latest 333da17614b6 5 weeks ago 234 MB docker.io/library/registry 2 1fd8e1b0bb7e 3 months ago 26.8 MB # run container and add it to pod [root@dlp ~]# podman run -dt --pod test-pod srv.world/rocky-nginx 494e63d0d139d49446a080ba43c73698c4ca353927b145228c36e0eb9d3d1cc4[root@dlp ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 03f90ef7525f registry.access.redhat.com/ubi8/pause:latest About a minute ago Up 7 seconds ago 0.0.0.0:8081->80/tcp 13562711fc93-infra 494e63d0d139 srv.world/rocky-nginx /usr/sbin/nginx -... 7 seconds ago Up 7 seconds ago 0.0.0.0:8081->80/tcp unruffled_tereshkova # verify accesses [root@dlp ~]# curl localhost:8081 Podman Test on Nginx # stop pod [root@dlp ~]# podman pod stop test-pod 13562711fc936c7241b75cc17766f9806ccaab0ee85235de7a8cd65963250f7a # remove pod (removed containers all) [root@dlp ~]# podman pod rm test-pod --force 13562711fc936c7241b75cc17766f9806ccaab0ee85235de7a8cd65963250f7a |
| [2] | It's possbile to create Pod and add Container with one command. |
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[root@dlp ~]# podman images REPOSITORY TAG IMAGE ID CREATED SIZE localhost/root_web latest a5b8f841a624 25 minutes ago 340 MB srv.world/rocky-nginx latest b11bf176fd62 About an hour ago 340 MB srv.world/rocky-httpd latest 5104875e9a87 About an hour ago 342 MB docker.io/library/mariadb latest fd17f5776802 2 days ago 416 MB registry.access.redhat.com/ubi8/pause latest 330db2d74fc3 5 weeks ago 3.49 MB docker.io/rockylinux/rockylinux latest 333da17614b6 5 weeks ago 234 MB docker.io/library/registry 2 1fd8e1b0bb7e 3 months ago 26.8 MB # 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/rocky-nginx 728f04f6d7ca9d82a69e878b17f859e9ce567d49ae7abe07c61b645f0f6d9b7a[root@dlp ~]# podman pod ls POD ID NAME STATUS CREATED INFRA ID # OF CONTAINERS 502e2bb2f924 test-pod2 Running 7 seconds ago eb00b01d9fb2 2[root@dlp ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES eb00b01d9fb2 registry.access.redhat.com/ubi8/pause:latest 17 seconds ago Up 17 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp 502e2bb2f924-infra 728f04f6d7ca srv.world/rocky-nginx /usr/sbin/nginx -... 17 seconds ago Up 17 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp epic_lehmann # run [mariadb] container and add it to the [test-pod2] [root@dlp ~]# podman run -dt --pod test-pod2 -e MYSQL_ROOT_PASSWORD=Password mariadb 1c83561172a11ea05440f7e438b223669db07f5da66ac2dcd4c4e59c084bce3d[root@dlp ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES eb00b01d9fb2 registry.access.redhat.com/ubi8/pause:latest 49 seconds ago Up 49 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp 502e2bb2f924-infra 728f04f6d7ca srv.world/rocky-nginx /usr/sbin/nginx -... 49 seconds ago Up 49 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp epic_lehmann 1c83561172a1 docker.io/library/mariadb:latest mysqld 6 seconds ago Up 6 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp optimistic_franklin
[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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