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authorUrvashi Mohnani <umohnani@redhat.com>2021-11-28 19:32:10 -0500
committerUrvashi Mohnani <umohnani@redhat.com>2021-12-02 14:48:04 -0500
commit7d331d35ddf5e511bd474505b675191d3f949dc0 (patch)
tree36c0bc83bb0ff98aade05a9546d6a886843348dd /test/e2e
parent7324d94648a9987b0de2dc95cf1b6fbc20592532 (diff)
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Add support for configmap volumes to play kube
If the k8s yaml has volumes from a configmap, play kube will now create a volume based on the data from the configmap and volume source and set it to the right path in the container accordingly. Add tests for this and update some test for ENV from configmap. Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
Diffstat (limited to 'test/e2e')
-rw-r--r--test/e2e/play_kube_test.go120
1 files changed, 111 insertions, 9 deletions
diff --git a/test/e2e/play_kube_test.go b/test/e2e/play_kube_test.go
index 1a3b5f8df..97e97baa4 100644
--- a/test/e2e/play_kube_test.go
+++ b/test/e2e/play_kube_test.go
@@ -4,8 +4,6 @@ import (
"bytes"
"context"
"fmt"
- "github.com/containers/podman/v3/pkg/bindings"
- "github.com/containers/podman/v3/pkg/bindings/play"
"io/ioutil"
"net"
"net/url"
@@ -17,6 +15,8 @@ import (
"time"
"github.com/containers/podman/v3/libpod/define"
+ "github.com/containers/podman/v3/pkg/bindings"
+ "github.com/containers/podman/v3/pkg/bindings/play"
"github.com/containers/podman/v3/pkg/util"
. "github.com/containers/podman/v3/test/utils"
"github.com/containers/storage/pkg/stringid"
@@ -380,6 +380,18 @@ spec:
persistentVolumeClaim:
claimName: {{ .PersistentVolumeClaim.ClaimName }}
{{- end }}
+ {{- if (eq .VolumeType "ConfigMap") }}
+ configMap:
+ name: {{ .ConfigMap.Name }}
+ optional: {{ .ConfigMap.Optional }}
+ {{- with .ConfigMap.Items }}
+ items:
+ {{- range . }}
+ - key: {{ .key }}
+ path: {{ .path }}
+ {{- end }}
+ {{- end }}
+ {{- end }}
{{ end }}
{{ end }}
status: {}
@@ -619,14 +631,14 @@ func createSecret(podmanTest *PodmanTestIntegration, name string, value []byte)
Expect(secret).Should(Exit(0))
}
-// ConfigMap describes the options a kube yaml can be configured at configmap level
-type ConfigMap struct {
+// CM describes the options a kube yaml can be configured at configmap level
+type CM struct {
Name string
Data map[string]string
}
-func getConfigMap(options ...configMapOption) *ConfigMap {
- cm := ConfigMap{
+func getConfigMap(options ...configMapOption) *CM {
+ cm := CM{
Name: defaultConfigMapName,
Data: map[string]string{},
}
@@ -638,16 +650,16 @@ func getConfigMap(options ...configMapOption) *ConfigMap {
return &cm
}
-type configMapOption func(*ConfigMap)
+type configMapOption func(*CM)
func withConfigMapName(name string) configMapOption {
- return func(configmap *ConfigMap) {
+ return func(configmap *CM) {
configmap.Name = name
}
}
func withConfigMapData(k, v string) configMapOption {
- return func(configmap *ConfigMap) {
+ return func(configmap *CM) {
configmap.Data[k] = v
}
}
@@ -1053,11 +1065,18 @@ type PersistentVolumeClaim struct {
ClaimName string
}
+type ConfigMap struct {
+ Name string
+ Items []map[string]string
+ Optional bool
+}
+
type Volume struct {
VolumeType string
Name string
HostPath
PersistentVolumeClaim
+ ConfigMap
}
// getHostPathVolume takes a type and a location for a HostPath
@@ -1085,6 +1104,20 @@ func getPersistentVolumeClaimVolume(vName string) *Volume {
}
}
+// getConfigMap returns a new ConfigMap Volume given the name and items
+// of the ConfigMap.
+func getConfigMapVolume(vName string, items []map[string]string, optional bool) *Volume {
+ return &Volume{
+ VolumeType: "ConfigMap",
+ Name: defaultVolName,
+ ConfigMap: ConfigMap{
+ Name: vName,
+ Items: items,
+ Optional: optional,
+ },
+ }
+}
+
type Env struct {
Name string
Value string
@@ -2317,6 +2350,75 @@ VOLUME %s`, ALPINE, hostPathDir+"/")
Expect(inspect.OutputToString()).To(Equal(correct))
})
+ It("podman play kube ConfigMap volume with no items", func() {
+ volumeName := "cmVol"
+ cm := getConfigMap(withConfigMapName(volumeName), withConfigMapData("FOO", "foobar"))
+ cmYaml, err := getKubeYaml("configmap", cm)
+ Expect(err).To(BeNil())
+
+ ctr := getCtr(withVolumeMount("/test", false), withImage(BB))
+ pod := getPod(withVolume(getConfigMapVolume(volumeName, []map[string]string{}, false)), withCtr(ctr))
+ podYaml, err := getKubeYaml("pod", pod)
+ Expect(err).To(BeNil())
+ yamls := []string{cmYaml, podYaml}
+ err = generateMultiDocKubeYaml(yamls, kubeYaml)
+ Expect(err).To(BeNil())
+
+ kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
+ kube.WaitWithDefaultTimeout()
+ Expect(kube).Should(Exit(0))
+
+ cmData := podmanTest.Podman([]string{"exec", getCtrNameInPod(pod), "cat", "/test/FOO"})
+ cmData.WaitWithDefaultTimeout()
+ Expect(cmData).Should(Exit(0))
+ Expect(cmData.OutputToString()).To(Equal("foobar"))
+ })
+
+ It("podman play kube ConfigMap volume with items", func() {
+ volumeName := "cmVol"
+ cm := getConfigMap(withConfigMapName(volumeName), withConfigMapData("FOO", "foobar"))
+ cmYaml, err := getKubeYaml("configmap", cm)
+ Expect(err).To(BeNil())
+ volumeContents := []map[string]string{{
+ "key": "FOO",
+ "path": "BAR",
+ }}
+
+ ctr := getCtr(withVolumeMount("/test", false), withImage(BB))
+ pod := getPod(withVolume(getConfigMapVolume(volumeName, volumeContents, false)), withCtr(ctr))
+ podYaml, err := getKubeYaml("pod", pod)
+ Expect(err).To(BeNil())
+ yamls := []string{cmYaml, podYaml}
+ err = generateMultiDocKubeYaml(yamls, kubeYaml)
+ Expect(err).To(BeNil())
+
+ kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
+ kube.WaitWithDefaultTimeout()
+ Expect(kube).Should(Exit(0))
+
+ cmData := podmanTest.Podman([]string{"exec", getCtrNameInPod(pod), "cat", "/test/BAR"})
+ cmData.WaitWithDefaultTimeout()
+ Expect(cmData).Should(Exit(0))
+ Expect(cmData.OutputToString()).To(Equal("foobar"))
+
+ cmData = podmanTest.Podman([]string{"exec", getCtrNameInPod(pod), "cat", "/test/FOO"})
+ cmData.WaitWithDefaultTimeout()
+ Expect(cmData).Should(Not(Exit(0)))
+ })
+
+ It("podman play kube with a missing optional ConfigMap volume", func() {
+ volumeName := "cmVol"
+
+ ctr := getCtr(withVolumeMount("/test", false), withImage(BB))
+ pod := getPod(withVolume(getConfigMapVolume(volumeName, []map[string]string{}, true)), withCtr(ctr))
+ err = generateKubeYaml("pod", pod, kubeYaml)
+ Expect(err).To(BeNil())
+
+ kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
+ kube.WaitWithDefaultTimeout()
+ Expect(kube).Should(Exit(0))
+ })
+
It("podman play kube applies labels to pods", func() {
var numReplicas int32 = 5
expectedLabelKey := "key1"