// containers creates entities from files with the ContainerExtension
func (fs FileSource) containers(objects []deploy.KubeObject) (containers []entity.Entity, err error) {
info, err := os.Stat(string(fs))
if err != nil {
return
}
// check if file
if !info.IsDir() {
kubeCtr, err := unmarshalContainer(string(fs))
if err != nil {
return nil, err
}
ctr, err := entity.NewContainer(kubeCtr, kube.ObjectMeta{}, string(fs), objects...)
if err != nil {
return nil, err
}
return []entity.Entity{ctr}, nil
}
dir, err := os.Open(string(fs))
if err != nil {
return
}
defer dir.Close()
files, err := dir.Readdir(-1)
if err != nil {
return
}
for _, file := range files {
if file.Mode().IsRegular() {
if filepath.Ext(file.Name()) == ContainerExtension {
filename := path.Join(string(fs), file.Name())
kubeCtr, err := unmarshalContainer(filename)
if err != nil {
return nil, err
}
ctr, err := entity.NewContainer(kubeCtr, kube.ObjectMeta{}, filename)
if err != nil {
return nil, err
}
containers = append(containers, ctr)
}
}
}
return containers, nil
}
func testWriteAndAttachRandomContainers(t *testing.T, num int, dir string, parent entity.Entity) {
for i := 0; i < num; i++ {
name := randomString(8)
kubeContainer := kube.Container{
Name: name,
Image: randomString(6),
ImagePullPolicy: kube.PullAlways,
TerminationMessagePath: kube.TerminationMessagePathDefault,
}
filename := path.Join(dir, name+ContainerExtension)
container, err := entity.NewContainer(kubeContainer, kube.ObjectMeta{}, filename)
assert.NoError(t, err)
testWriteYAMLToFile(t, filename, &kubeContainer)
assert.NoError(t, parent.Attach(container), "should be able to attach container to pod")
}
}
func TestSourceContainersDir(t *testing.T) {
fs := testTempFileSource(t)
defer os.RemoveAll(string(fs))
expected := []*entity.Container{}
for i := 0; i < 15+rand.Intn(100); i++ {
name := randomString(8)
kubeContainer := kube.Container{
Name: name,
Image: randomString(6),
ImagePullPolicy: kube.PullAlways,
}
filename := path.Join(string(fs), name+ContainerExtension)
container, err := entity.NewContainer(kubeContainer, kube.ObjectMeta{}, filename)
assert.NoError(t, err)
expected = append(expected, container)
testWriteYAMLToFile(t, filename, &kubeContainer)
}
actual, err := fs.Entities(entity.EntityContainer)
assert.NoError(t, err, "should be okay")
assert.Len(t, actual, len(expected), "should have same number of containers as start")
for _, expectedContainer := range expected {
found := false
for _, actualContainer := range actual {
if expectedContainer.Source() == actualContainer.Source() {
found = testCompareEntity(t, expectedContainer, actualContainer)
if found {
break
}
}
}
assert.True(t, found, "should have found container")
}
}