feature: Added command to list pods managed by fission for environment/function (#2207)

2021-10-10 10:52:42 +05:30
parent e930a2922c
commit c9da527d37
16 changed files with 403 additions and 32 deletions
@@ -0,0 +1,72 @@
+/*
+Copyright 2021 The Fission Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package function
+
+import (
+	"fmt"
+	"os"
+	"text/tabwriter"
+
+	"github.com/pkg/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+
+	v1 "github.com/fission/fission/pkg/apis/core/v1"
+	"github.com/fission/fission/pkg/fission-cli/cliwrapper/cli"
+	"github.com/fission/fission/pkg/fission-cli/cmd"
+	flagkey "github.com/fission/fission/pkg/fission-cli/flag/key"
+	"github.com/fission/fission/pkg/utils"
+)
+
+type ListPodsSubCommand struct {
+	cmd.CommandActioner
+}
+
+func ListPods(input cli.Input) error {
+	return (&ListPodsSubCommand{}).do(input)
+}
+
+func (opts *ListPodsSubCommand) do(input cli.Input) error {
+
+	m := &metav1.ObjectMeta{
+		Name: input.String(flagkey.FnName),
+		Labels: map[string]string{
+			v1.FUNCTION_NAMESPACE: input.String(flagkey.NamespaceFunction),
+		},
+	}
+
+	pods, err := opts.Client().V1().Function().ListPods(m)
+	if err != nil {
+		return errors.Wrap(err, "error listing environments")
+	}
+
+	w := tabwriter.NewWriter(os.Stdout, 0, 0, 2, ' ', 0)
+	fmt.Fprintf(w, "%v\t%v\t%v\t%v\t%v\t%v\t%v\t\n", "NAME", "NAMESPACE", "READY", "STATUS", "IP", "EXECUTORTYPE", "MANAGED")
+	for _, pod := range pods {
+
+		// A deletion timestamp indicates that a pod is terminating. Do not count this pod.
+		if pod.ObjectMeta.DeletionTimestamp != nil {
+			continue
+		}
+
+		labelList := pod.GetLabels()
+		readyContainers, noOfContainers := utils.PodContainerReadyStatus(&pod)
+		fmt.Fprintf(w, "%v\t%v\t%v/%v\t%v\t%v\t%v\t%v\t\n", pod.ObjectMeta.Name, pod.ObjectMeta.Namespace, noOfContainers, readyContainers, pod.Status.Phase, pod.Status.PodIP, labelList[v1.EXECUTOR_TYPE], labelList[v1.MANAGED])
+	}
+	w.Flush()
+
+	return nil
+}