Podman : Create Pods2021/05/14 |
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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 71003c6f96171c46c9619eba56be3238c33186bc66b9d4fd8fea551cda113e35 # show pods [root@dlp ~]# podman pod ls POD ID NAME STATUS CREATED INFRA ID # OF CONTAINERS 71003c6f9617 test-pod Created 10 seconds ago c8fb08d89c38 1 # show details of pod [root@dlp ~]# podman pod inspect test-pod
{
"Id": "71003c6f96171c46c9619eba56be3238c33186bc66b9d4fd8fea551cda113e35",
"Name": "test-pod",
"Created": "2021-05-13T03:56:08.299508215-04:00",
"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_71003c6f96171c46c9619eba56be3238c33186bc66b9d4fd8fea551cda113e35.slice",
"CreateInfra": true,
"InfraContainerID": "c8fb08d89c385ff722af56854930caba442a3f29ebde70aaf5aa495b3245ad29",
"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": "c8fb08d89c385ff722af56854930caba442a3f29ebde70aaf5aa495b3245ad29",
"Name": "71003c6f9617-infra",
"State": "configured"
}
]
}
[root@dlp ~]# podman images REPOSITORY TAG IMAGE ID CREATED SIZE srv.world/fedora-nginx latest ef4fd3a3964f 3 seconds ago 425 MB registry.fedoraproject.org/fedora latest 5f05951e2065 2 weeks ago 187 MB docker.io/library/mariadb latest 992bce5ed710 2 weeks ago 407 MB k8s.gcr.io/pause 3.5 ed210e3e4a5b 8 weeks ago 690 kB # run container and add it to pod [root@dlp ~]# podman run -dt --pod test-pod srv.world/fedora-nginx 034a8fb9384ccd61f1a78027dced9a702b0deae74f61bf40021b75a43bfa0804[root@dlp ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES c8fb08d89c38 k8s.gcr.io/pause:3.5 4 minutes ago Up 7 seconds ago 0.0.0.0:8081->80/tcp 71003c6f9617-infra 034a8fb9384c srv.world/fedora-nginx:latest /usr/sbin/nginx -... 6 seconds ago Up 7 seconds ago 0.0.0.0:8081->80/tcp hopeful_bartik # verify accesses [root@dlp ~]# curl localhost:8081 Podman Test on Nginx # stop pod [root@dlp ~]# podman pod stop test-pod 71003c6f96171c46c9619eba56be3238c33186bc66b9d4fd8fea551cda113e35 # remove pod (removed containers all) [root@dlp ~]# podman pod rm test-pod --force 71003c6f96171c46c9619eba56be3238c33186bc66b9d4fd8fea551cda113e35 |
| [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 srv.world/fedora-nginx latest ef4fd3a3964f About a minute ago 425 MB registry.fedoraproject.org/fedora latest 5f05951e2065 2 weeks ago 187 MB docker.io/library/mariadb latest 992bce5ed710 2 weeks ago 407 MB k8s.gcr.io/pause 3.5 ed210e3e4a5b 8 weeks ago 690 kB # create a [test-pod2] pod and add [srv.world/fedora-nginx] container [root@dlp ~]# podman run -dt --pod new:test-pod2 -p 80:80 -p 3306:3306 srv.world/fedora-nginx 9c9a53ba729fdd097bb91cba22d8a8b4a5590c9bbf2d669f8aed7668b0a77fdb[root@dlp ~]# podman pod ls POD ID NAME STATUS CREATED INFRA ID # OF CONTAINERS 30f8c1756117 test-pod2 Running 16 seconds ago d495a8abb00e 2[root@dlp ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES d495a8abb00e k8s.gcr.io/pause:3.5 26 seconds ago Up 26 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp 30f8c1756117-infra 9c9a53ba729f srv.world/fedora-nginx:latest /usr/sbin/nginx -... 26 seconds ago Up 26 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp unruffled_murdock # 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 13993b796a3e54b26e130b989c8e08e12b5c59bb8dde2dbca9a1ed7fd32b9430[root@dlp ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES d495a8abb00e 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 30f8c1756117-infra 9c9a53ba729f 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 unruffled_murdock 13993b796a3e docker.io/library/mariadb:latest mysqld 14 seconds ago Up 14 seconds ago 0.0.0.0:80->80/tcp, 0.0.0.0:3306->3306/tcp romantic_mayer
[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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