Add event logging to libpod, even display to podman

In lipod, we now log major events that occurr.  These events
can be displayed using the `podman events` command. Each
event contains:

* Type (container, image, volume, pod...)
* Status (create, rm, stop, kill, ....)
* Timestamp in RFC3339Nano format
* Name (if applicable)
* Image (if applicable)

The format of the event and the varlink endpoint are to not
be considered stable until cockpit has done its enablement.

Signed-off-by: baude <bbaude@redhat.com>

1 files changed, 8 insertions, 5 deletions

diff --git a/libpod/pod_api.go b/libpod/pod_api.go
index cbac2420f..b9a11000e 100644
--- a/libpod/pod_api.go
+++ b/libpod/pod_api.go
@@ -3,6 +3,7 @@ package libpod
 import (
 	"context"
 
+	"github.com/containers/libpod/libpod/events"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
 	"github.com/ulule/deepcopier"
@@ -58,7 +59,7 @@ func (p *Pod) Start(ctx context.Context) (map[string]error, error) {
 	if len(ctrErrors) > 0 {
 		return ctrErrors, errors.Wrapf(ErrCtrExists, "error starting some containers")
 	}
-
+	defer p.newPodEvent(events.Start)
 	return nil, nil
 }
 
@@ -138,7 +139,7 @@ func (p *Pod) StopWithTimeout(ctx context.Context, cleanup bool, timeout int) (m
 	if len(ctrErrors) > 0 {
 		return ctrErrors, errors.Wrapf(ErrCtrExists, "error stopping some containers")
 	}
-
+	defer p.newPodEvent(events.Stop)
 	return nil, nil
 }
 
@@ -197,7 +198,7 @@ func (p *Pod) Pause() (map[string]error, error) {
 	if len(ctrErrors) > 0 {
 		return ctrErrors, errors.Wrapf(ErrCtrExists, "error pausing some containers")
 	}
-
+	defer p.newPodEvent(events.Pause)
 	return nil, nil
 }
 
@@ -257,6 +258,7 @@ func (p *Pod) Unpause() (map[string]error, error) {
 		return ctrErrors, errors.Wrapf(ErrCtrExists, "error unpausing some containers")
 	}
 
+	defer p.newPodEvent(events.Unpause)
 	return nil, nil
 }
 
@@ -309,7 +311,8 @@ func (p *Pod) Restart(ctx context.Context) (map[string]error, error) {
 	if len(ctrErrors) > 0 {
 		return ctrErrors, errors.Wrapf(ErrCtrExists, "error stopping some containers")
 	}
-
+	p.newPodEvent(events.Stop)
+	p.newPodEvent(events.Start)
 	return nil, nil
 }
 
@@ -367,7 +370,7 @@ func (p *Pod) Kill(signal uint) (map[string]error, error) {
 	if len(ctrErrors) > 0 {
 		return ctrErrors, errors.Wrapf(ErrCtrExists, "error killing some containers")
 	}
-
+	defer p.newPodEvent(events.Kill)
 	return nil, nil
 }