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be3f075402
The logic here is more complex than I would like, largely due to the behavior of `podman inspect` for running containers. When a container is running, `podman inspect` will source as much as possible from the OCI spec used to run that container, to grab up-to-date information on things like devices. We don't want to change this, it's definitely the right behavior, but it does make updating a running container inconvenient: we have to rewrite the OCI spec as part of the update to make sure that `podman inspect` will read the correct resource limits. Also, make update emit events. Docker does it, we should as well. Signed-off-by: Matt Heon <mheon@redhat.com>
218 lines
9.1 KiB
Markdown
218 lines
9.1 KiB
Markdown
% podman-events 1
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## NAME
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podman\-events - Monitor Podman events
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## SYNOPSIS
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**podman events** [*options*]
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**podman system events** [*options*]
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## DESCRIPTION
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Monitor and print events that occur in Podman. Each event includes a timestamp,
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a type, a status, name (if applicable), and image (if applicable). The default logging
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mechanism is *journald*. This can be changed in containers.conf by changing the `events_logger`
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value to `file`. Only `file` and `journald` are accepted. A `none` logger is also
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available, but this logging mechanism completely disables events; nothing is reported by
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`podman events`.
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By default, streaming mode is used, printing new events as they occur. Previous events can be listed via `--since` and `--until`.
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The *container* event type reports the follow statuses:
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* attach
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* checkpoint
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* cleanup
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* commit
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* connect
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* create
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* died
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* disconnect
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* exec
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* exec_died
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* exited
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* export
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* import
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* init
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* kill
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* mount
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* pause
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* prune
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* remove
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* rename
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* restart
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* restore
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* start
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* stop
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* sync
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* unmount
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* unpause
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* update
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The *pod* event type reports the follow statuses:
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* create
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* kill
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* pause
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* remove
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* start
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* stop
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* unpause
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The *image* event type reports the following statuses:
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* loadFromArchive,
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* mount
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* pull
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* pull-error
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* push
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* remove
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* save
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* tag
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* unmount
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* untag
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The *system* type reports the following statuses:
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* refresh
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* renumber
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The *volume* type reports the following statuses:
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* create
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* prune
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* remove
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#### Verbose Create Events
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Setting `events_container_create_inspect_data=true` in containers.conf(5) instructs Podman to create more verbose container-create events which include a JSON payload with detailed information about the containers. The JSON payload is identical to the one of podman-container-inspect(1). The associated field in journald is named `PODMAN_CONTAINER_INSPECT_DATA`.
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## OPTIONS
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#### **--filter**, **-f**=*filter*
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Filter events that are displayed. They must be in the format of "filter=value". The following
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filters are supported:
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| **Filter** | **Description** |
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|------------|-------------------------------------|
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| container | [Name or ID] Container's name or ID |
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| event | event_status (described above) |
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| image | [Name or ID] Image name or ID |
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| label | [key=value] label |
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| pod | [Name or ID] Pod name or ID |
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| volume | [Name or ID] Volume name or ID |
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| type | Event_type (described above) |
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In the case where an ID is used, the ID may be in its full or shortened form. The "die" event is mapped to "died" for Docker compatibility.
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#### **--format**
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Format the output to JSON Lines or using the given Go template.
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| **Placeholder** | **Description** |
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| --------------------- | -------------------------------------------------------------------- |
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| .Attributes ... | created_at, _by, labels, and more (map[]) |
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| .ContainerExitCode | Exit code (int) |
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| .ContainerInspectData | Payload of the container's inspect |
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| .Error | Error message in case the event status is an error (e.g. pull-error) |
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| .HealthStatus | Health Status (string) |
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| .ID | Container ID (full 64-bit SHA) |
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| .Image | Name of image being run (string) |
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| .Name | Container name (string) |
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| .Network | Name of network being used (string) |
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| .PodID | ID of pod associated with container, if any |
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| .Status | Event status (e.g., create, start, died, ...) |
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| .Time | Event timestamp (string) |
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| .TimeNano | Event timestamp with nanosecond precision (int64) |
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| .Type | Event type (e.g., image, container, pod, ...) |
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#### **--help**
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Print usage statement.
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#### **--no-trunc**
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Do not truncate the output (default *true*).
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#### **--since**=*timestamp*
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Show all events created since the given timestamp
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#### **--stream**
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Stream events and do not exit after reading the last known event (default *true*).
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#### **--until**=*timestamp*
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Show all events created until the given timestamp
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The *since* and *until* values can be RFC3339Nano time stamps or a Go duration string such as 10m, 5h. If no
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*since* or *until* values are provided, only new events are shown.
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## JOURNALD IDENTIFIERS
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The journald events-backend of Podman uses the following journald identifiers. You can use the identifiers to filter Podman events directly with `journalctl`.
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| **Identifier** | **Description** |
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|-------------------------------|---------------------------------------------------------|
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| SYSLOG_IDENTIFIER | Always set to "podman" |
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| PODMAN_EVENT | The event status as described above |
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| PODMAN_TYPE | The event type as described above |
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| PODMAN_TIME | The time stamp when the event was written |
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| PODMAN_NAME | Name of the event object (e.g., container, image) |
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| PODMAN_ID | ID of the event object (e.g., container, image) |
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| PODMAN_EXIT_CODE | Exit code of the container |
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| PODMAN_POD_ID | Pod ID of the container |
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| PODMAN_LABELS | Labels of the container |
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| PODMAN_HEALTH_STATUS | Health status of the container |
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| PODMAN_CONTAINER_INSPECT_DATA | The JSON payload of `podman-inspect` as described above |
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| PODMAN_NETWORK_NAME | The name of the network |
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## EXAMPLES
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Show Podman events:
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```
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$ podman events
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2019-03-02 10:33:42.312377447 -0600 CST container create 34503c192940 (image=docker.io/library/alpine:latest, name=friendly_allen)
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2019-03-02 10:33:46.958768077 -0600 CST container init 34503c192940 (image=docker.io/library/alpine:latest, name=friendly_allen)
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2019-03-02 10:33:46.973661968 -0600 CST container start 34503c192940 (image=docker.io/library/alpine:latest, name=friendly_allen)
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2019-03-02 10:33:50.833761479 -0600 CST container stop 34503c192940 (image=docker.io/library/alpine:latest, name=friendly_allen)
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2019-03-02 10:33:51.047104966 -0600 CST container cleanup 34503c192940 (image=docker.io/library/alpine:latest, name=friendly_allen)
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```
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Show only Podman container create events:
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```
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$ podman events -f event=create
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2019-03-02 10:36:01.375685062 -0600 CST container create 20dc581f6fbf (image=docker.io/library/alpine:latest, name=sharp_morse)
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2019-03-02 10:36:08.561188337 -0600 CST container create 58e7e002344c (image=registry.k8s.io/pause:3.1, name=3e701f270d54-infra)
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2019-03-02 10:36:13.146899437 -0600 CST volume create cad6dc50e087 (image=, name=cad6dc50e0879568e7d656bd004bd343d6035e7fc4024e1711506fe2fd459e6f)
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2019-03-02 10:36:29.978806894 -0600 CST container create d81e30f1310f (image=docker.io/library/busybox:latest, name=musing_newton)
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```
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Show only Podman pod create events:
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```
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$ podman events --filter event=create --filter type=pod
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2019-03-02 10:44:29.601746633 -0600 CST pod create 1df5ebca7b44 (image=, name=confident_hawking)
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2019-03-02 10:44:42.374637304 -0600 CST pod create ca731231718e (image=, name=webapp)
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2019-03-02 10:44:47.486759133 -0600 CST pod create 71e807fc3a8e (image=, name=reverent_swanson)
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```
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Show only Podman events created in the last five minutes:
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```
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$ sudo podman events --since 5m
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2019-03-02 10:44:29.598835409 -0600 CST container create b629d10d3831 (image=registry.k8s.io/pause:3.1, name=1df5ebca7b44-infra)
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2019-03-02 10:44:29.601746633 -0600 CST pod create 1df5ebca7b44 (image=, name=confident_hawking)
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2019-03-02 10:44:42.371100253 -0600 CST container create 170a0f457d00 (image=registry.k8s.io/pause:3.1, name=ca731231718e-infra)
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2019-03-02 10:44:42.374637304 -0600 CST pod create ca731231718e (image=, name=webapp)
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```
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Show Podman events in JSON Lines format:
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```
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$ podman events --format json
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{"ID":"683b0909d556a9c02fa8cd2b61c3531a965db42158627622d1a67b391964d519","Image":"localhost/myshdemo:latest","Name":"agitated_diffie","Status":"cleanup","Time":"2019-04-27T22:47:00.849932843-04:00","Type":"container"}
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{"ID":"a0f8ab051bfd43f9c5141a8a2502139707e4b38d98ac0872e57c5315381e88ad","Image":"docker.io/library/alpine:latest","Name":"friendly_tereshkova","Status":"unmount","Time":"2019-04-28T13:43:38.063017276-04:00","Type":"container"}
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```
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## SEE ALSO
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**[podman(1)](podman.1.md)**, **[containers.conf(5)](https://github.com/containers/common/blob/main/docs/containers.conf.5.md)**
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## HISTORY
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March 2019, Originally compiled by Brent Baude <bbaude@redhat.com>
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