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|
package lpfilters
import (
"strconv"
"strings"
"github.com/containers/podman/v2/libpod"
"github.com/containers/podman/v2/libpod/define"
"github.com/containers/podman/v2/pkg/util"
"github.com/pkg/errors"
)
// GeneratePodFilterFunc takes a filter and filtervalue (key, value)
// and generates a libpod function that can be used to filter
// pods
func GeneratePodFilterFunc(filter string, filterValues []string) (
func(pod *libpod.Pod) bool, error) {
switch filter {
case "ctr-ids":
return func(p *libpod.Pod) bool {
ctrIds, err := p.AllContainersByID()
if err != nil {
return false
}
for _, id := range ctrIds {
return util.StringMatchRegexSlice(id, filterValues)
}
return false
}, nil
case "ctr-names":
return func(p *libpod.Pod) bool {
ctrs, err := p.AllContainers()
if err != nil {
return false
}
for _, ctr := range ctrs {
return util.StringMatchRegexSlice(ctr.Name(), filterValues)
}
return false
}, nil
case "ctr-number":
return func(p *libpod.Pod) bool {
ctrIds, err := p.AllContainersByID()
if err != nil {
return false
}
for _, filterValue := range filterValues {
fVint, err2 := strconv.Atoi(filterValue)
if err2 != nil {
return false
}
if len(ctrIds) == fVint {
return true
}
}
return false
}, nil
case "ctr-status":
for _, filterValue := range filterValues {
if !util.StringInSlice(filterValue, []string{"created", "running", "paused", "stopped", "exited", "unknown"}) {
return nil, errors.Errorf("%s is not a valid status", filterValue)
}
}
return func(p *libpod.Pod) bool {
ctrStatuses, err := p.Status()
if err != nil {
return false
}
for _, ctrStatus := range ctrStatuses {
state := ctrStatus.String()
if ctrStatus == define.ContainerStateConfigured {
state = "created"
} else if ctrStatus == define.ContainerStateStopped {
state = "exited"
}
for _, filterValue := range filterValues {
if filterValue == "stopped" {
filterValue = "exited"
}
if state == filterValue {
return true
}
}
}
return false
}, nil
case "id":
return func(p *libpod.Pod) bool {
return util.StringMatchRegexSlice(p.ID(), filterValues)
}, nil
case "name":
return func(p *libpod.Pod) bool {
return util.StringMatchRegexSlice(p.Name(), filterValues)
}, nil
case "status":
for _, filterValue := range filterValues {
if !util.StringInSlice(filterValue, []string{"stopped", "running", "paused", "exited", "dead", "created", "degraded"}) {
return nil, errors.Errorf("%s is not a valid pod status", filterValue)
}
}
return func(p *libpod.Pod) bool {
status, err := p.GetPodStatus()
if err != nil {
return false
}
for _, filterValue := range filterValues {
if strings.ToLower(status) == filterValue {
return true
}
}
return false
}, nil
case "label":
return func(p *libpod.Pod) bool {
labels := p.Labels()
for _, filterValue := range filterValues {
matched := false
filterArray := strings.SplitN(filterValue, "=", 2)
filterKey := filterArray[0]
if len(filterArray) > 1 {
filterValue = filterArray[1]
} else {
filterValue = ""
}
for labelKey, labelValue := range labels {
if labelKey == filterKey && ("" == filterValue || labelValue == filterValue) {
matched = true
break
}
}
if !matched {
return false
}
}
return true
}, nil
}
return nil, errors.Errorf("%s is an invalid filter", filter)
}
|
