Podman : Pod を作成する2021/11/11 |
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Kubernetes でおなじみの Pod も Podman で作成可能です。
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| [1] | Pod を作成してコンテナーを追加します。 |
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# 空の pod を新規作成 # -p [バインドするポート] -n [pod の名前] [root@dlp ~]# podman pod create -p 8081:80 -n test-pod 19182e5e788c172ca0012a6d9081dee5043dd5c3fb4d5941ecbc69d1cab23a7e # 確認 [root@dlp ~]# podman pod ls POD ID NAME STATUS CREATED INFRA ID # OF CONTAINERS 19182e5e788c test-pod Created 13 seconds ago 8772d822c8a0 1 # pod の詳細を表示 [root@dlp ~]# podman pod inspect test-pod
{
"Id": "19182e5e788c172ca0012a6d9081dee5043dd5c3fb4d5941ecbc69d1cab23a7e",
"Name": "test-pod",
"Created": "2021-11-11T10:47:32.871314326+09:00",
"CreateCommand": [
"podman",
"pod",
"create",
"-p",
"8081:80",
"-n",
"test-pod"
],
"State": "Created",
"Hostname": "",
"CreateCgroup": true,
"CgroupParent": "machine.slice",
"CgroupPath": "machine.slice/machine-libpod_pod_19182e5e788c172ca0012a6d9081dee5043dd5c3fb4d5941ecbc69d1cab23a7e.slice",
"CreateInfra": true,
"InfraContainerID": "8772d822c8a03a01d2182141b97d6a05ba3cde8dfde5039d398cf35a58354685",
"InfraConfig": {
"PortBindings": {
"80/tcp": [
{
"HostIp": "",
"HostPort": "8081"
}
]
},
"HostNetwork": true,
"StaticIP": "",
"StaticMAC": "",
"NoManageResolvConf": false,
"DNSServer": null,
"DNSSearch": null,
"DNSOption": null,
"NoManageHosts": false,
"HostAdd": null,
"Networks": null,
"NetworkOptions": null,
"pid_ns": "private",
"userns": "host"
},
"SharedNamespaces": [
"uts",
"ipc",
"net"
],
"NumContainers": 1,
"Containers": [
{
"Id": "8772d822c8a03a01d2182141b97d6a05ba3cde8dfde5039d398cf35a58354685",
"Name": "19182e5e788c-infra",
"State": "configured"
}
]
}
[root@dlp ~]# podman images REPOSITORY TAG IMAGE ID CREATED SIZE localhost/root_web latest 0a40f10d61ec 46 minutes ago 391 MB srv.world/fedora-nginx latest f27df6dc0cf8 About an hour ago 391 MB srv.world/fedora-httpd latest 3b282c5eda58 2 hours ago 418 MB docker.io/library/mariadb latest e2278f24ac88 24 hours ago 416 MB registry.fedoraproject.org/fedora latest 1b52edb08181 7 days ago 159 MB k8s.gcr.io/pause 3.5 ed210e3e4a5b 7 months ago 690 kB # コンテナーを起動して pod に追加する [root@dlp ~]# podman run -dt --pod test-pod srv.world/fedora-nginx e6485dae58730b79f05ce23f5a2d33f3473c5b2d04855db9ea06a7fafd6dcf0d[root@dlp ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 8772d822c8a0 k8s.gcr.io/pause:3.5 About a minute ago Up 9 seconds ago 0.0.0.0:8081->80/tcp 19182e5e788c-infra e6485dae5873 srv.world/fedora-nginx:latest /usr/sbin/nginx -... 8 seconds ago Up 9 seconds ago 0.0.0.0:8081->80/tcp wizardly_bassi # アクセス確認 [root@dlp ~]# curl localhost:8081 Podman Test on Nginx # pod を停止する [root@dlp ~]# podman pod stop test-pod 19182e5e788c172ca0012a6d9081dee5043dd5c3fb4d5941ecbc69d1cab23a7e # pod を削除する (コンテナーも含めて強制削除) [root@dlp ~]# podman pod rm test-pod --force 19182e5e788c172ca0012a6d9081dee5043dd5c3fb4d5941ecbc69d1cab23a7e |
| [2] | Pod の作成とコンテナーの追加を同時に実行することもできます。 |
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[root@dlp ~]# podman images REPOSITORY TAG IMAGE ID CREATED SIZE localhost/root_web latest 0a40f10d61ec 48 minutes ago 391 MB srv.world/fedora-nginx latest f27df6dc0cf8 About an hour ago 391 MB srv.world/fedora-httpd latest 3b282c5eda58 2 hours ago 418 MB docker.io/library/mariadb latest e2278f24ac88 24 hours ago 416 MB registry.fedoraproject.org/fedora latest 1b52edb08181 7 days ago 159 MB k8s.gcr.io/pause 3.5 ed210e3e4a5b 7 months ago 690 kB # [test-pod2] を新規作成して [srv.world/fedora-nginx] コンテナーを追加する [root@dlp ~]# podman run -dt --pod new:test-pod2 -p 80:80 -p 3306:3306 srv.world/fedora-nginx 7b09ffafa1c72edea7612f5d28f7700a580034adc2d6e6bfe01aa9e37e24ed21[root@dlp ~]# podman pod ls POD ID NAME STATUS CREATED INFRA ID # OF CONTAINERS 1f849e01c353 test-pod2 Running 8 seconds ago 608f03d0aab2 2[root@dlp ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 608f03d0aab2 k8s.gcr.io/pause:3.5 20 seconds ago Up 20 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp 1f849e01c353-infra 7b09ffafa1c7 srv.world/fedora-nginx:latest /usr/sbin/nginx -... 20 seconds ago Up 20 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp quizzical_knuth # [mariadb] コンテナーを起動して [test-pod2] に追加する [root@dlp ~]# podman run -dt --pod test-pod2 -e MYSQL_ROOT_PASSWORD=Password docker.io/library/mariadb 5755b15b298a0bd95afee5972565ebab7624bebd5e736e183f0ded7b6c13f697[root@dlp ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 608f03d0aab2 k8s.gcr.io/pause:3.5 About a minute ago Up About a minute ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp 1f849e01c353-infra 7b09ffafa1c7 srv.world/fedora-nginx:latest /usr/sbin/nginx -... About a minute ago Up About a minute ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp quizzical_knuth 5755b15b298a docker.io/library/mariadb:latest mariadbd 8 seconds ago Up 8 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp funny_goldstine
[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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