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deployments.go
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deployments.go
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package describe
import (
"fmt"
"io"
"sort"
"strconv"
"strings"
"text/tabwriter"
"github.com/openshift/origin/pkg/api/graph"
kapi "github.com/GoogleCloudPlatform/kubernetes/pkg/api"
kerrors "github.com/GoogleCloudPlatform/kubernetes/pkg/api/errors"
kclient "github.com/GoogleCloudPlatform/kubernetes/pkg/client"
"github.com/GoogleCloudPlatform/kubernetes/pkg/fields"
kctl "github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl"
"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
"github.com/openshift/origin/pkg/client"
deployapi "github.com/openshift/origin/pkg/deploy/api"
deployutil "github.com/openshift/origin/pkg/deploy/util"
)
// DeploymentConfigDescriber generates information about a DeploymentConfig
type DeploymentConfigDescriber struct {
client deploymentDescriberClient
}
type deploymentDescriberClient interface {
getDeploymentConfig(namespace, name string) (*deployapi.DeploymentConfig, error)
getDeployment(namespace, name string) (*kapi.ReplicationController, error)
listDeployments(namespace string, selector labels.Selector) (*kapi.ReplicationControllerList, error)
listPods(namespace string, selector labels.Selector) (*kapi.PodList, error)
listEvents(deploymentConfig *deployapi.DeploymentConfig) (*kapi.EventList, error)
}
type genericDeploymentDescriberClient struct {
getDeploymentConfigFunc func(namespace, name string) (*deployapi.DeploymentConfig, error)
getDeploymentFunc func(namespace, name string) (*kapi.ReplicationController, error)
listDeploymentsFunc func(namespace string, selector labels.Selector) (*kapi.ReplicationControllerList, error)
listPodsFunc func(namespace string, selector labels.Selector) (*kapi.PodList, error)
listEventsFunc func(deploymentConfig *deployapi.DeploymentConfig) (*kapi.EventList, error)
}
func (c *genericDeploymentDescriberClient) getDeploymentConfig(namespace, name string) (*deployapi.DeploymentConfig, error) {
return c.getDeploymentConfigFunc(namespace, name)
}
func (c *genericDeploymentDescriberClient) getDeployment(namespace, name string) (*kapi.ReplicationController, error) {
return c.getDeploymentFunc(namespace, name)
}
func (c *genericDeploymentDescriberClient) listDeployments(namespace string, selector labels.Selector) (*kapi.ReplicationControllerList, error) {
return c.listDeploymentsFunc(namespace, selector)
}
func (c *genericDeploymentDescriberClient) listPods(namespace string, selector labels.Selector) (*kapi.PodList, error) {
return c.listPodsFunc(namespace, selector)
}
func (c *genericDeploymentDescriberClient) listEvents(deploymentConfig *deployapi.DeploymentConfig) (*kapi.EventList, error) {
return c.listEventsFunc(deploymentConfig)
}
// NewDeploymentConfigDescriberForConfig returns a new DeploymentConfigDescriber
// for a DeploymentConfig
func NewDeploymentConfigDescriberForConfig(client client.Interface, kclient kclient.Interface, config *deployapi.DeploymentConfig) *DeploymentConfigDescriber {
return &DeploymentConfigDescriber{
client: &genericDeploymentDescriberClient{
getDeploymentConfigFunc: func(namespace, name string) (*deployapi.DeploymentConfig, error) {
return config, nil
},
getDeploymentFunc: func(namespace, name string) (*kapi.ReplicationController, error) {
return nil, kerrors.NewNotFound("ReplicatonController", name)
},
listDeploymentsFunc: func(namespace string, selector labels.Selector) (*kapi.ReplicationControllerList, error) {
return nil, kerrors.NewNotFound("ReplicationControllerList", fmt.Sprintf("%v", selector))
},
listPodsFunc: func(namespace string, selector labels.Selector) (*kapi.PodList, error) {
return nil, kerrors.NewNotFound("PodList", fmt.Sprintf("%v", selector))
},
listEventsFunc: func(deploymentConfig *deployapi.DeploymentConfig) (*kapi.EventList, error) {
return kclient.Events(config.Namespace).Search(config)
},
},
}
}
// NewDeploymentConfigDescriber returns a new DeploymentConfigDescriber
func NewDeploymentConfigDescriber(client client.Interface, kclient kclient.Interface) *DeploymentConfigDescriber {
return &DeploymentConfigDescriber{
client: &genericDeploymentDescriberClient{
getDeploymentConfigFunc: func(namespace, name string) (*deployapi.DeploymentConfig, error) {
return client.DeploymentConfigs(namespace).Get(name)
},
getDeploymentFunc: func(namespace, name string) (*kapi.ReplicationController, error) {
return kclient.ReplicationControllers(namespace).Get(name)
},
listDeploymentsFunc: func(namespace string, selector labels.Selector) (*kapi.ReplicationControllerList, error) {
return kclient.ReplicationControllers(namespace).List(selector)
},
listPodsFunc: func(namespace string, selector labels.Selector) (*kapi.PodList, error) {
return kclient.Pods(namespace).List(selector, fields.Everything())
},
listEventsFunc: func(deploymentConfig *deployapi.DeploymentConfig) (*kapi.EventList, error) {
return kclient.Events(deploymentConfig.Namespace).Search(deploymentConfig)
},
},
}
}
// Describe returns the description of a DeploymentConfig
func (d *DeploymentConfigDescriber) Describe(namespace, name string) (string, error) {
deploymentConfig, err := d.client.getDeploymentConfig(namespace, name)
if err != nil {
return "", err
}
events, err := d.client.listEvents(deploymentConfig)
if err != nil {
return "", err
}
return tabbedString(func(out *tabwriter.Writer) error {
formatMeta(out, deploymentConfig.ObjectMeta)
if deploymentConfig.LatestVersion == 0 {
formatString(out, "Latest Version", "Not deployed")
} else {
formatString(out, "Latest Version", strconv.Itoa(deploymentConfig.LatestVersion))
}
printTriggers(deploymentConfig.Triggers, out)
formatString(out, "Strategy", deploymentConfig.Template.Strategy.Type)
printStrategy(deploymentConfig.Template.Strategy, out)
printReplicationControllerSpec(deploymentConfig.Template.ControllerTemplate, out)
deploymentName := deployutil.LatestDeploymentNameForConfig(deploymentConfig)
deployment, err := d.client.getDeployment(namespace, deploymentName)
if err != nil {
if kerrors.IsNotFound(err) {
formatString(out, "Latest Deployment", "<none>")
} else {
formatString(out, "Latest Deployment", fmt.Sprintf("error: %v", err))
}
} else {
header := fmt.Sprintf("Deployment #%d (latest)", deployutil.DeploymentVersionFor(deployment))
printDeploymentRc(deployment, d.client, out, header, true)
}
deploymentsHistory, err := d.client.listDeployments(namespace, labels.Everything())
if err == nil {
sorted := rcSorter{}
sorted = append(sorted, deploymentsHistory.Items...)
sort.Sort(sorted)
for _, item := range sorted {
if item.Name != deploymentName && deploymentConfig.Name == deployutil.DeploymentConfigNameFor(&item) {
header := fmt.Sprintf("Deployment #%d", deployutil.DeploymentVersionFor(&item))
printDeploymentRc(&item, d.client, out, header, false)
}
}
}
if events != nil {
kctl.DescribeEvents(events, out)
}
return nil
})
}
func printStrategy(strategy deployapi.DeploymentStrategy, w *tabwriter.Writer) {
switch strategy.Type {
case deployapi.DeploymentStrategyTypeRecreate:
if strategy.RecreateParams != nil {
pre := strategy.RecreateParams.Pre
post := strategy.RecreateParams.Post
if pre != nil {
printHook("Pre-deployment", pre, w)
}
if post != nil {
printHook("Post-deployment", post, w)
}
}
case deployapi.DeploymentStrategyTypeRolling:
if strategy.RollingParams != nil {
pre := strategy.RollingParams.Pre
post := strategy.RollingParams.Post
if pre != nil {
printHook("Pre-deployment", pre, w)
}
if post != nil {
printHook("Post-deployment", post, w)
}
}
case deployapi.DeploymentStrategyTypeCustom:
fmt.Fprintf(w, "\t Image:\t%s\n", strategy.CustomParams.Image)
if len(strategy.CustomParams.Environment) > 0 {
fmt.Fprintf(w, "\t Environment:\t%s\n", formatLabels(convertEnv(strategy.CustomParams.Environment)))
}
if len(strategy.CustomParams.Command) > 0 {
fmt.Fprintf(w, "\t Command:\t%v\n", strings.Join(strategy.CustomParams.Command, " "))
}
}
}
func printHook(prefix string, hook *deployapi.LifecycleHook, w io.Writer) {
if hook.ExecNewPod != nil {
fmt.Fprintf(w, "\t %s hook (pod type, failure policy: %s)\n", prefix, hook.FailurePolicy)
fmt.Fprintf(w, "\t Container:\t%s\n", hook.ExecNewPod.ContainerName)
fmt.Fprintf(w, "\t Command:\t%v\n", strings.Join(hook.ExecNewPod.Command, " "))
fmt.Fprintf(w, "\t Env:\t%s\n", formatLabels(convertEnv(hook.ExecNewPod.Env)))
}
}
func printTriggers(triggers []deployapi.DeploymentTriggerPolicy, w *tabwriter.Writer) {
if len(triggers) == 0 {
formatString(w, "Triggers", "<none>")
return
}
labels := []string{}
for _, t := range triggers {
switch t.Type {
case deployapi.DeploymentTriggerOnConfigChange:
labels = append(labels, "Config")
case deployapi.DeploymentTriggerOnImageChange:
if len(t.ImageChangeParams.RepositoryName) > 0 {
labels = append(labels, fmt.Sprintf("Image(%s@%s, auto=%v)", t.ImageChangeParams.RepositoryName, t.ImageChangeParams.Tag, t.ImageChangeParams.Automatic))
} else if len(t.ImageChangeParams.From.Name) > 0 {
labels = append(labels, fmt.Sprintf("Image(%s@%s, auto=%v)", t.ImageChangeParams.From.Name, t.ImageChangeParams.Tag, t.ImageChangeParams.Automatic))
}
}
}
desc := strings.Join(labels, ", ")
formatString(w, "Triggers", desc)
}
func printReplicationControllerSpec(spec kapi.ReplicationControllerSpec, w io.Writer) error {
fmt.Fprint(w, "Template:\n")
fmt.Fprintf(w, "\tSelector:\t%s\n\tReplicas:\t%d\n",
formatLabels(spec.Selector),
spec.Replicas)
fmt.Fprintf(w, "\tContainers:\n\t\tNAME\tIMAGE\tENV\n")
for _, container := range spec.Template.Spec.Containers {
fmt.Fprintf(w, "\t\t%s\t%s\t%s\n",
container.Name,
container.Image,
formatLabels(convertEnv(container.Env)))
}
return nil
}
func printDeploymentRc(deployment *kapi.ReplicationController, client deploymentDescriberClient, w io.Writer, header string, verbose bool) error {
if len(header) > 0 {
fmt.Fprintf(w, "%v:\n", header)
}
if verbose {
fmt.Fprintf(w, "\tName:\t%s\n", deployment.Name)
}
timeAt := strings.ToLower(formatRelativeTime(deployment.CreationTimestamp.Time))
fmt.Fprintf(w, "\tCreated:\t%s ago\n", timeAt)
fmt.Fprintf(w, "\tStatus:\t%s\n", deployutil.DeploymentStatusFor(deployment))
fmt.Fprintf(w, "\tReplicas:\t%d current / %d desired\n", deployment.Status.Replicas, deployment.Spec.Replicas)
if verbose {
fmt.Fprintf(w, "\tSelector:\t%s\n", formatLabels(deployment.Spec.Selector))
fmt.Fprintf(w, "\tLabels:\t%s\n", formatLabels(deployment.Labels))
running, waiting, succeeded, failed, err := getPodStatusForDeployment(deployment, client)
if err != nil {
return err
}
fmt.Fprintf(w, "\tPods Status:\t%d Running / %d Waiting / %d Succeeded / %d Failed\n", running, waiting, succeeded, failed)
}
return nil
}
func getPodStatusForDeployment(deployment *kapi.ReplicationController, client deploymentDescriberClient) (running, waiting, succeeded, failed int, err error) {
rcPods, err := client.listPods(deployment.Namespace, labels.SelectorFromSet(deployment.Spec.Selector))
if err != nil {
return
}
for _, pod := range rcPods.Items {
switch pod.Status.Phase {
case kapi.PodRunning:
running++
case kapi.PodPending:
waiting++
case kapi.PodSucceeded:
succeeded++
case kapi.PodFailed:
failed++
}
}
return
}
type LatestDeploymentsDescriber struct {
count int
client deploymentDescriberClient
}
// NewLatestDeploymentsDescriber lists the latest deployments limited to "count". In case count == -1, list back to the last successful.
func NewLatestDeploymentsDescriber(client client.Interface, kclient kclient.Interface, count int) *LatestDeploymentsDescriber {
return &LatestDeploymentsDescriber{
count: count,
client: &genericDeploymentDescriberClient{
getDeploymentConfigFunc: func(namespace, name string) (*deployapi.DeploymentConfig, error) {
return client.DeploymentConfigs(namespace).Get(name)
},
getDeploymentFunc: func(namespace, name string) (*kapi.ReplicationController, error) {
return kclient.ReplicationControllers(namespace).Get(name)
},
listDeploymentsFunc: func(namespace string, selector labels.Selector) (*kapi.ReplicationControllerList, error) {
return kclient.ReplicationControllers(namespace).List(selector)
},
listPodsFunc: func(namespace string, selector labels.Selector) (*kapi.PodList, error) {
return kclient.Pods(namespace).List(selector, fields.Everything())
},
listEventsFunc: func(deploymentConfig *deployapi.DeploymentConfig) (*kapi.EventList, error) {
return kclient.Events(deploymentConfig.Namespace).Search(deploymentConfig)
},
},
}
}
// Describe returns the description of the latest deployments for a config
func (d *LatestDeploymentsDescriber) Describe(namespace, name string) (string, error) {
config, err := d.client.getDeploymentConfig(namespace, name)
if err != nil {
return "", err
}
var deployments []kapi.ReplicationController
if d.count == -1 || d.count > 1 {
list, err := d.client.listDeployments(namespace, labels.Everything())
if err != nil && !kerrors.IsNotFound(err) {
return "", err
}
deployments = list.Items
} else {
deploymentName := deployutil.LatestDeploymentNameForConfig(config)
deployment, err := d.client.getDeployment(config.Namespace, deploymentName)
if err != nil && !kerrors.IsNotFound(err) {
return "", err
}
if deployment != nil {
deployments = []kapi.ReplicationController{*deployment}
}
}
g := graph.New()
deploy := graph.DeploymentConfig(g, config)
if len(deployments) > 0 {
graph.JoinDeployments(deploy.(*graph.DeploymentConfigNode), deployments)
}
return tabbedString(func(out *tabwriter.Writer) error {
node := deploy.(*graph.DeploymentConfigNode)
descriptions := describeDeployments(node, d.count)
for i, description := range descriptions {
descriptions[i] = fmt.Sprintf("%v %v", name, description)
}
printLines(out, "", 0, descriptions...)
return nil
})
}
type rcSorter []kapi.ReplicationController
func (s rcSorter) Len() int {
return len(s)
}
func (s rcSorter) Less(i, j int) bool {
return s[i].CreationTimestamp.Unix() > s[j].CreationTimestamp.Unix()
}
func (s rcSorter) Swap(i, j int) {
s[i], s[j] = s[j], s[i]
}