mirror of
https://github.com/containers/podman.git
synced 2025-05-20 16:47:39 +08:00
0dae50f1d3
There is a problem with creating and storing the exit command when the container was created. It only contains the options the container was created with but NOT the options the container is started with. One example would be a CNI network config. If I start a container once, then change the cni config dir with `--cni-config-dir` ans start it a second time it will start successfully. However the exit command still contains the wrong `--cni-config-dir` because it was not updated. To fix this we do not want to store the exit command at all. Instead we create it every time the conmon process for the container is startet. This guarantees us that the container cleanup process is startet with the correct settings. [NO NEW TESTS NEEDED] Signed-off-by: Paul Holzinger <pholzing@redhat.com>
10 KiB
10 KiB
% podman-container-inspect(1)
NAME
podman-container-inspect - Display a container's configuration
SYNOPSIS
podman container inspect [options] container [container ...]
DESCRIPTION
This displays the low-level information on containers identified by name or ID. By default, this will render all results in a JSON array. If a format is specified, the given template will be executed for each result.
OPTIONS
--format, -f=format
Format the output using the given Go template. The keys of the returned JSON can be used as the values for the --format flag (see examples below).
--latest, -l
Instead of providing the container name or ID, use the last created container. If you use methods other than Podman to run containers such as CRI-O, the last started container could be from either of those methods.
(This option is not available with the remote Podman client.)
--size, -s
In addition to normal output, display the total file size if the type is a container.
EXAMPLE
$ podman container inspect foobar
[
{
"Id": "99f66530fe9c7249f7cf29f78e8661669d5831cbe4ee80ea757d5e922dd6a8a6",
"Created": "2021-09-16T06:09:08.936623325-04:00",
"Path": "echo",
"Args": [
"hi"
],
"State": {
"OciVersion": "1.0.2-dev",
"Status": "exited",
"Running": false,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 0,
"ExitCode": 0,
"Error": "",
"StartedAt": "2021-09-16T06:09:09.033564436-04:00",
"FinishedAt": "2021-09-16T06:09:09.036184314-04:00",
"Healthcheck": {
"Status": "",
"FailingStreak": 0,
"Log": null
}
},
"Image": "14119a10abf4669e8cdbdff324a9f9605d99697215a0d21c360fe8dfa8471bab",
"ImageName": "docker.io/library/alpine:latest",
"Rootfs": "",
"Pod": "",
"ResolvConfPath": "/run/user/3267/containers/overlay-containers/99f66530fe9c7249f7cf29f78e8661669d5831cbe4ee80ea757d5e922dd6a8a6/userdata/resolv.conf",
"HostnamePath": "/run/user/3267/containers/overlay-containers/99f66530fe9c7249f7cf29f78e8661669d5831cbe4ee80ea757d5e922dd6a8a6/userdata/hostname",
"HostsPath": "/run/user/3267/containers/overlay-containers/99f66530fe9c7249f7cf29f78e8661669d5831cbe4ee80ea757d5e922dd6a8a6/userdata/hosts",
"StaticDir": "/home/dwalsh/.local/share/containers/storage/overlay-containers/99f66530fe9c7249f7cf29f78e8661669d5831cbe4ee80ea757d5e922dd6a8a6/userdata",
"OCIConfigPath": "/home/dwalsh/.local/share/containers/storage/overlay-containers/99f66530fe9c7249f7cf29f78e8661669d5831cbe4ee80ea757d5e922dd6a8a6/userdata/config.json",
"OCIRuntime": "crun",
"ConmonPidFile": "/run/user/3267/containers/overlay-containers/99f66530fe9c7249f7cf29f78e8661669d5831cbe4ee80ea757d5e922dd6a8a6/userdata/conmon.pid",
"PidFile": "/run/user/3267/containers/overlay-containers/99f66530fe9c7249f7cf29f78e8661669d5831cbe4ee80ea757d5e922dd6a8a6/userdata/pidfile",
"Name": "foobar",
"RestartCount": 0,
"Driver": "overlay",
"MountLabel": "system_u:object_r:container_file_t:s0:c25,c695",
"ProcessLabel": "system_u:system_r:container_t:s0:c25,c695",
"AppArmorProfile": "",
"EffectiveCaps": [
"CAP_CHOWN",
"CAP_DAC_OVERRIDE",
"CAP_FOWNER",
"CAP_FSETID",
"CAP_KILL",
"CAP_NET_BIND_SERVICE",
"CAP_SETFCAP",
"CAP_SETGID",
"CAP_SETPCAP",
"CAP_SETUID",
"CAP_SYS_CHROOT"
],
"BoundingCaps": [
"CAP_CHOWN",
"CAP_DAC_OVERRIDE",
"CAP_FOWNER",
"CAP_FSETID",
"CAP_KILL",
"CAP_NET_BIND_SERVICE",
"CAP_SETFCAP",
"CAP_SETGID",
"CAP_SETPCAP",
"CAP_SETUID",
"CAP_SYS_CHROOT"
],
"ExecIDs": [],
"GraphDriver": {
"Name": "overlay",
"Data": {
"LowerDir": "/home/dwalsh/.local/share/containers/storage/overlay/e2eb06d8af8218cfec8210147357a68b7e13f7c485b991c288c2d01dc228bb68/diff",
"UpperDir": "/home/dwalsh/.local/share/containers/storage/overlay/8f3d70434a3db17410ec4710caf4f251f3e4ed0a96a08124e4b3d4af0a0ea300/diff",
"WorkDir": "/home/dwalsh/.local/share/containers/storage/overlay/8f3d70434a3db17410ec4710caf4f251f3e4ed0a96a08124e4b3d4af0a0ea300/work"
}
},
"Mounts": [],
"Dependencies": [],
"NetworkSettings": {
"EndpointID": "",
"Gateway": "",
"IPAddress": "",
"IPPrefixLen": 0,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "",
"Bridge": "",
"SandboxID": "",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {},
"SandboxKey": ""
},
"Namespace": "",
"IsInfra": false,
"Config": {
"Hostname": "99f66530fe9c",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"TERM=xterm",
"container=podman",
"HOME=/root",
"HOSTNAME=99f66530fe9c"
],
"Cmd": [
"echo",
"hi"
],
"Image": "docker.io/library/alpine:latest",
"Volumes": null,
"WorkingDir": "/",
"Entrypoint": "",
"OnBuild": null,
"Labels": null,
"Annotations": {
"io.container.manager": "libpod",
"io.kubernetes.cri-o.Created": "2021-09-16T06:09:08.936623325-04:00",
"io.kubernetes.cri-o.TTY": "false",
"io.podman.annotations.autoremove": "FALSE",
"io.podman.annotations.init": "FALSE",
"io.podman.annotations.privileged": "FALSE",
"io.podman.annotations.publish-all": "FALSE",
"org.opencontainers.image.stopSignal": "15"
},
"StopSignal": 15,
"CreateCommand": [
"podman",
"run",
"--name",
"foobar",
"alpine",
"echo",
"hi"
],
"Timezone": "local",
"Umask": "0022",
"Timeout": 0,
"StopTimeout": 10
},
"HostConfig": {
"Binds": [],
"CgroupManager": "systemd",
"CgroupMode": "private",
"ContainerIDFile": "",
"LogConfig": {
"Type": "journald",
"Config": null,
"Path": "",
"Tag": "",
"Size": "0B"
},
"NetworkMode": "slirp4netns",
"PortBindings": {},
"RestartPolicy": {
"Name": "",
"MaximumRetryCount": 0
},
"AutoRemove": false,
"VolumeDriver": "",
"VolumesFrom": null,
"CapAdd": [],
"CapDrop": [
"CAP_AUDIT_WRITE",
"CAP_MKNOD",
"CAP_NET_RAW"
],
"Dns": [],
"DnsOptions": [],
"DnsSearch": [],
"ExtraHosts": [],
"GroupAdd": [],
"IpcMode": "private",
"Cgroup": "",
"Cgroups": "default",
"Links": null,
"OomScoreAdj": 0,
"PidMode": "private",
"Privileged": false,
"PublishAllPorts": false,
"ReadonlyRootfs": false,
"SecurityOpt": [],
"Tmpfs": {},
"UTSMode": "private",
"UsernsMode": "",
"ShmSize": 65536000,
"Runtime": "oci",
"ConsoleSize": [
0,
0
],
"Isolation": "",
"CpuShares": 0,
"Memory": 0,
"NanoCpus": 0,
"CgroupParent": "user.slice",
"BlkioWeight": 0,
"BlkioWeightDevice": null,
"BlkioDeviceReadBps": null,
"BlkioDeviceWriteBps": null,
"BlkioDeviceReadIOps": null,
"BlkioDeviceWriteIOps": null,
"CpuPeriod": 0,
"CpuQuota": 0,
"CpuRealtimePeriod": 0,
"CpuRealtimeRuntime": 0,
"CpusetCpus": "",
"CpusetMems": "",
"Devices": [],
"DiskQuota": 0,
"KernelMemory": 0,
"MemoryReservation": 0,
"MemorySwap": 0,
"MemorySwappiness": 0,
"OomKillDisable": false,
"PidsLimit": 2048,
"Ulimits": [],
"CpuCount": 0,
"CpuPercent": 0,
"IOMaximumIOps": 0,
"IOMaximumBandwidth": 0,
"CgroupConf": null
}
}
]
$ podman container inspect nervous_fermi --format "{{.ImageName}}"
registry.access.redhat.com/ubi8:latest
$ podman container inspect foobar --format "{{.GraphDriver.Name}}"
overlay
$ podman container inspect --latest --format {{.EffectiveCaps}}
[CAP_CHOWN CAP_DAC_OVERRIDE CAP_FOWNER CAP_FSETID CAP_KILL CAP_NET_BIND_SERVICE CAP_SETFCAP CAP_SETGID CAP_SETPCAP CAP_SETUID CAP_SYS_CHROOT]
SEE ALSO
podman(1), podman-container(1), podman-inspect(1)
HISTORY
Sep 2021, Originally compiled by Dan Walsh dwalsh@redhat.com