forked from rook/rook
travisn
b24ebc8168
Various kubectl helper methods return strings from calls to create, delete, or apply resources. There is no need for this. It is sufficient and complete to check the err from these calls to determine failure. Signed-off-by: travisn <tnielsen@redhat.com>
107 lines
2.9 KiB
Go
107 lines
2.9 KiB
Go
/*
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Copyright 2016 The Rook Authors. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package clients
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import (
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"fmt"
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"github.com/rook/rook/tests/framework/utils"
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"github.com/stretchr/testify/assert"
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)
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// ReadWriteOperation is a wrapper for k8s rook file operations
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type ReadWriteOperation struct {
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k8sh *utils.K8sHelper
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}
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// CreateReadWriteOperation Constructor to create ReadWriteOperation - client to perform rook file system operations on k8s
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func CreateReadWriteOperation(k8sh *utils.K8sHelper) *ReadWriteOperation {
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return &ReadWriteOperation{k8sh: k8sh}
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}
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// CreateWriteClient Function to create a nfs client in rook
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func (f *ReadWriteOperation) CreateWriteClient(volName string) ([]string, error) {
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logger.Infof("creating the filesystem via replication controller")
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writerSpec := getReplicationController(volName)
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if err := f.k8sh.ResourceOperation("create", writerSpec); err != nil {
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return nil, err
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}
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assert.True(f.k8sh.T(), f.k8sh.CheckPodCountAndState("read-write-test", "default", 2, "Running"),
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"Make sure there are two read-write-test pods present in Running state")
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podList, err := f.k8sh.GetPodNamesForApp("read-write-test", "default")
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if err != nil {
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return nil, err
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}
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return podList, nil
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}
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// Delete Function to delete a nfs consuming pod in rook
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func (f *ReadWriteOperation) Delete() error {
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return f.k8sh.DeleteResource("rc", "read-write-test")
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}
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// Read Function to read from nfs mount point created by rook ,i.e. Read data from a pod that has an nfs export mounted
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func (f *ReadWriteOperation) Read(name string) (string, error) {
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rd := "/mnt/data"
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args := []string{"exec", name}
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args = append(args, "--", "cat", rd)
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result, err := f.k8sh.Kubectl(args...)
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if err != nil {
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return "", fmt.Errorf("unable to write data to pod -- : %s", err)
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}
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return result, nil
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}
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func getReplicationController(volName string) string {
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return `apiVersion: v1
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kind: ReplicationController
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metadata:
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name: read-write-test
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spec:
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replicas: 2
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selector:
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app: read-write-test
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template:
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metadata:
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labels:
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app: read-write-test
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spec:
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containers:
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- image: alpine
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command:
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- sh
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- -c
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- 'while true; do hostname > /mnt/data; sleep 3; done'
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name: alpine
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volumeMounts:
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- name: test-vol
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mountPath: "/mnt"
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volumes:
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- name: test-vol
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persistentVolumeClaim:
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claimName: ` + volName + `
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`
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}
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