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package lpfilters
import (
"regexp"
"strconv"
"strings"
"time"
"github.com/containers/podman/v2/libpod"
"github.com/containers/podman/v2/libpod/define"
"github.com/containers/podman/v2/pkg/timetype"
"github.com/containers/podman/v2/pkg/util"
"github.com/pkg/errors"
)
// GenerateContainerFilterFuncs return ContainerFilter functions based of filter.
func GenerateContainerFilterFuncs(filter, filterValue string, r *libpod.Runtime) (func(container *libpod.Container) bool, error) {
switch filter {
case "id":
return func(c *libpod.Container) bool {
return strings.Contains(c.ID(), filterValue)
}, nil
case "label":
var filterArray = strings.SplitN(filterValue, "=", 2)
var filterKey = filterArray[0]
if len(filterArray) > 1 {
filterValue = filterArray[1]
} else {
filterValue = ""
}
return func(c *libpod.Container) bool {
for labelKey, labelValue := range c.Labels() {
if labelKey == filterKey && ("" == filterValue || labelValue == filterValue) {
return true
}
}
return false
}, nil
case "name":
return func(c *libpod.Container) bool {
match, err := regexp.MatchString(filterValue, c.Name())
if err != nil {
return false
}
return match
}, nil
case "exited":
exitCode, err := strconv.ParseInt(filterValue, 10, 32)
if err != nil {
return nil, errors.Wrapf(err, "exited code out of range %q", filterValue)
}
return func(c *libpod.Container) bool {
ec, exited, err := c.ExitCode()
if ec == int32(exitCode) && err == nil && exited {
return true
}
return false
}, nil
case "status":
if !util.StringInSlice(filterValue, []string{"created", "running", "paused", "stopped", "exited", "unknown"}) {
return nil, errors.Errorf("%s is not a valid status", filterValue)
}
return func(c *libpod.Container) bool {
status, err := c.State()
if err != nil {
return false
}
if filterValue == "stopped" {
filterValue = "exited"
}
state := status.String()
if status == define.ContainerStateConfigured {
state = "created"
} else if status == define.ContainerStateStopped {
state = "exited"
}
return state == filterValue
}, nil
case "ancestor":
// This needs to refine to match docker
// - ancestor=(<image-name>[:tag]|<image-id>| ⟨image@digest⟩) - containers created from an image or a descendant.
return func(c *libpod.Container) bool {
containerConfig := c.Config()
if strings.Contains(containerConfig.RootfsImageID, filterValue) || strings.Contains(containerConfig.RootfsImageName, filterValue) {
return true
}
return false
}, nil
case "before":
ctr, err := r.LookupContainer(filterValue)
if err != nil {
return nil, errors.Errorf("unable to find container by name or id of %s", filterValue)
}
containerConfig := ctr.Config()
createTime := containerConfig.CreatedTime
return func(c *libpod.Container) bool {
cc := c.Config()
return createTime.After(cc.CreatedTime)
}, nil
case "since":
ctr, err := r.LookupContainer(filterValue)
if err != nil {
return nil, errors.Errorf("unable to find container by name or id of %s", filterValue)
}
containerConfig := ctr.Config()
createTime := containerConfig.CreatedTime
return func(c *libpod.Container) bool {
cc := c.Config()
return createTime.Before(cc.CreatedTime)
}, nil
case "volume":
//- volume=(<volume-name>|<mount-point-destination>)
return func(c *libpod.Container) bool {
containerConfig := c.Config()
var dest string
arr := strings.Split(filterValue, ":")
source := arr[0]
if len(arr) == 2 {
dest = arr[1]
}
for _, mount := range containerConfig.Spec.Mounts {
if dest != "" && (mount.Source == source && mount.Destination == dest) {
return true
}
if dest == "" && mount.Source == source {
return true
}
}
return false
}, nil
case "health":
return func(c *libpod.Container) bool {
hcStatus, err := c.HealthCheckStatus()
if err != nil {
return false
}
return hcStatus == filterValue
}, nil
case "until":
ts, err := timetype.GetTimestamp(filterValue, time.Now())
if err != nil {
return nil, err
}
seconds, nanoseconds, err := timetype.ParseTimestamps(ts, 0)
if err != nil {
return nil, err
}
until := time.Unix(seconds, nanoseconds)
return func(c *libpod.Container) bool {
if !until.IsZero() && c.CreatedTime().After((until)) {
return true
}
return false
}, nil
}
return nil, errors.Errorf("%s is an invalid filter", filter)
}
|
