Podman : Pod を作成する2022/03/14 |
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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 bdf487d4c6918e0a17bedd71f0fe19df38497db670bf2098155b890e2f82b593 # 確認 [root@dlp ~]# podman pod ls POD ID NAME STATUS CREATED INFRA ID # OF CONTAINERS bdf487d4c691 test-pod Created 7 seconds ago 17def5b06bd3 1 # pod の詳細を表示 [root@dlp ~]# podman pod inspect test-pod
{
"Id": "bdf487d4c6918e0a17bedd71f0fe19df38497db670bf2098155b890e2f82b593",
"Name": "test-pod",
"Created": "2022-03-14T12:43:45.353771267+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_bdf487d4c6918e0a17bedd71f0fe19df38497db670bf2098155b890e2f82b593.slice",
"CreateInfra": true,
"InfraContainerID": "17def5b06bd350ad389008ef695094c29a1247a583297b21d1486c5766f3afe6",
"InfraConfig": {
"PortBindings": {
"80/tcp": [
{
"HostIp": "",
"HostPort": "8081"
}
]
},
"HostNetwork": true,
"StaticIP": "",
"StaticMAC": "",
"NoManageResolvConf": false,
"DNSServer": null,
"DNSSearch": null,
"DNSOption": null,
"NoManageHosts": false,
"HostAdd": null,
"Networks": [
"podman"
],
"NetworkOptions": null,
"pid_ns": "private",
"userns": "host"
},
"SharedNamespaces": [
"ipc",
"net",
"uts"
],
"NumContainers": 1,
"Containers": [
{
"Id": "17def5b06bd350ad389008ef695094c29a1247a583297b21d1486c5766f3afe6",
"Name": "bdf487d4c691-infra",
"State": "created"
}
]
}
[root@dlp ~]# podman images REPOSITORY TAG IMAGE ID CREATED SIZE localhost/podman-pause 4.0.0-1645764745 b03d3f09b431 38 seconds ago 812 kB docker.io/library/root_web latest b82379313273 52 minutes ago 247 MB localhost/root_web latest 6190fc2fcb25 52 minutes ago 247 MB srv.world/centos-nginx latest 762eb0a249a5 2 hours ago 247 MB srv.world/centos-httpd latest 0c6c507d6e95 2 hours ago 253 MB docker.io/library/mariadb latest f5dd1ac0b00e 3 days ago 421 MB quay.io/centos/centos stream9 44ffcc4acee8 3 days ago 152 MB docker.io/library/registry 2 8948869ebfee 5 days ago 24.7 MB # 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/centos-nginx 5410cefbdbd61a15e074df0c0dc9adf9aa2ab0785754a079f0a82c8e6ad24df1[root@dlp ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 17def5b06bd3 localhost/podman-pause:4.0.0-1645764745 About a minute ago Up 7 seconds ago 0.0.0.0:8081->80/tcp bdf487d4c691-infra 5410cefbdbd6 srv.world/centos-nginx:latest /usr/sbin/nginx -... 7 seconds ago Up 7 seconds ago 0.0.0.0:8081->80/tcp gracious_ellis # 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 bdf487d4c6918e0a17bedd71f0fe19df38497db670bf2098155b890e2f82b593 # 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 bdf487d4c6918e0a17bedd71f0fe19df38497db670bf2098155b890e2f82b593 |
| [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/podman-pause 4.0.0-1645764745 b03d3f09b431 About a minute ago 812 kB docker.io/library/root_web latest b82379313273 53 minutes ago 247 MB localhost/root_web latest 6190fc2fcb25 53 minutes ago 247 MB srv.world/centos-nginx latest 762eb0a249a5 2 hours ago 247 MB srv.world/centos-httpd latest 0c6c507d6e95 2 hours ago 253 MB docker.io/library/mariadb latest f5dd1ac0b00e 3 days ago 421 MB quay.io/centos/centos stream9 44ffcc4acee8 3 days ago 152 MB docker.io/library/registry 2 8948869ebfee 5 days ago 24.7 MB # [test-pod2] を新規作成して [srv.world/centos-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/centos-nginx 02cbf5bbd55accd5e9d72277037586fceb99c2730ceb5074fc59721507d37170[root@dlp ~]# podman pod ls POD ID NAME STATUS CREATED INFRA ID # OF CONTAINERS 0f4f7e83351d test-pod2 Running 7 seconds ago 1feba853e2d1 2[root@dlp ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 1feba853e2d1 localhost/podman-pause:4.0.0-1645764745 19 seconds ago Up 20 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp 0f4f7e83351d-infra 02cbf5bbd55a srv.world/centos-nginx:latest /usr/sbin/nginx -... 19 seconds ago Up 20 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp kind_kepler # [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 mariadb 70e1c460e9bd7243f8372ec0812263264e9dc54cac1cdeb9fa23ecc25440c527[root@dlp ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 1feba853e2d1 localhost/podman-pause:4.0.0-1645764745 50 seconds ago Up 51 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp 0f4f7e83351d-infra 02cbf5bbd55a srv.world/centos-nginx:latest /usr/sbin/nginx -... 50 seconds ago Up 51 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp kind_kepler 70e1c460e9bd docker.io/library/mariadb:latest mariadbd 6 seconds ago Up 7 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp hungry_mestorf
[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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