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authorEduardo Vega <edvegavalerio@gmail.com>2020-09-24 08:27:01 -0600
committerEduardo Vega <edvegavalerio@gmail.com>2020-10-07 08:54:24 -0600
commit39dde9bcb7b3a01395522d51afe42a1cae92be15 (patch)
treebabbf92c39f06368eb807143eb3e2a900c9952f5 /test
parenta7500e54a4646c7db477349e2530ac13df77b8fa (diff)
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Enable k8s configmaps as flags for play kube
Signed-off-by: Eduardo Vega <edvegavalerio@gmail.com>
Diffstat (limited to 'test')
-rw-r--r--test/e2e/play_kube_test.go233
1 files changed, 190 insertions, 43 deletions
diff --git a/test/e2e/play_kube_test.go b/test/e2e/play_kube_test.go
index d771860d8..afd27150d 100644
--- a/test/e2e/play_kube_test.go
+++ b/test/e2e/play_kube_test.go
@@ -25,6 +25,19 @@ spec:
hostname: unknown
`
+var configMapYamlTemplate = `
+apiVersion: v1
+kind: ConfigMap
+metadata:
+ name: {{ .Name }}
+data:
+{{ with .Data }}
+ {{ range $key, $value := . }}
+ {{ $key }}: {{ $value }}
+ {{ end }}
+{{ end }}
+`
+
var podYamlTemplate = `
apiVersion: v1
kind: Pod
@@ -75,6 +88,26 @@ spec:
- name: HOSTNAME
- name: container
value: podman
+ {{ range .Env }}
+ - name: {{ .Name }}
+ {{ if (eq .ValueFrom "configmap") }}
+ valueFrom:
+ configMapKeyRef:
+ name: {{ .RefName }}
+ key: {{ .RefKey }}
+ {{ else }}
+ value: {{ .Value }}
+ {{ end }}
+ {{ end }}
+ {{ with .EnvFrom}}
+ envFrom:
+ {{ range . }}
+ {{ if (eq .From "configmap") }}
+ - configMapRef:
+ name: {{ .Name }}
+ {{ end }}
+ {{ end }}
+ {{ end }}
image: {{ .Image }}
name: {{ .Name }}
imagePullPolicy: {{ .PullPolicy }}
@@ -226,6 +259,7 @@ var (
defaultPodName = "testPod"
defaultVolName = "testVol"
defaultDeploymentName = "testDeployment"
+ defaultConfigMapName = "testConfigMap"
seccompPwdEPERM = []byte(`{"defaultAction":"SCMP_ACT_ALLOW","syscalls":[{"name":"getcwd","action":"SCMP_ACT_ERRNO"}]}`)
)
@@ -244,34 +278,64 @@ func writeYaml(content string, fileName string) error {
return nil
}
-func generatePodKubeYaml(pod *Pod, fileName string) error {
+func generateKubeYaml(kind string, object interface{}, pathname string) error {
+ var yamlTemplate string
templateBytes := &bytes.Buffer{}
- t, err := template.New("pod").Parse(podYamlTemplate)
+ switch kind {
+ case "configmap":
+ yamlTemplate = configMapYamlTemplate
+ case "pod":
+ yamlTemplate = podYamlTemplate
+ case "deployment":
+ yamlTemplate = deploymentYamlTemplate
+ default:
+ return fmt.Errorf("unsupported kubernetes kind")
+ }
+
+ t, err := template.New(kind).Parse(yamlTemplate)
if err != nil {
return err
}
- if err := t.Execute(templateBytes, pod); err != nil {
+ if err := t.Execute(templateBytes, object); err != nil {
return err
}
- return writeYaml(templateBytes.String(), fileName)
+ return writeYaml(templateBytes.String(), pathname)
}
-func generateDeploymentKubeYaml(deployment *Deployment, fileName string) error {
- templateBytes := &bytes.Buffer{}
+// ConfigMap describes the options a kube yaml can be configured at configmap level
+type ConfigMap struct {
+ Name string
+ Data map[string]string
+}
- t, err := template.New("deployment").Parse(deploymentYamlTemplate)
- if err != nil {
- return err
+func getConfigMap(options ...configMapOption) *ConfigMap {
+ cm := ConfigMap{
+ Name: defaultConfigMapName,
+ Data: map[string]string{},
}
- if err := t.Execute(templateBytes, deployment); err != nil {
- return err
+ for _, option := range options {
+ option(&cm)
}
- return writeYaml(templateBytes.String(), fileName)
+ return &cm
+}
+
+type configMapOption func(*ConfigMap)
+
+func withConfigMapName(name string) configMapOption {
+ return func(configmap *ConfigMap) {
+ configmap.Name = name
+ }
+}
+
+func withConfigMapData(k, v string) configMapOption {
+ return func(configmap *ConfigMap) {
+ configmap.Data[k] = v
+ }
}
// Pod describes the options a kube yaml can be configured at pod level
@@ -450,12 +514,14 @@ type Ctr struct {
VolumeMountPath string
VolumeName string
VolumeReadOnly bool
+ Env []Env
+ EnvFrom []EnvFrom
}
// getCtr takes a list of ctrOptions and returns a Ctr with sane defaults
// and the configured options
func getCtr(options ...ctrOption) *Ctr {
- c := Ctr{defaultCtrName, defaultCtrImage, defaultCtrCmd, defaultCtrArg, true, false, nil, nil, "", "", "", false, "", "", false}
+ c := Ctr{defaultCtrName, defaultCtrImage, defaultCtrCmd, defaultCtrArg, true, false, nil, nil, "", "", "", false, "", "", false, []Env{}, []EnvFrom{}}
for _, option := range options {
option(&c)
}
@@ -524,6 +590,31 @@ func withVolumeMount(mountPath string, readonly bool) ctrOption {
}
}
+func withEnv(name, value, valueFrom, refName, refKey string) ctrOption {
+ return func(c *Ctr) {
+ e := Env{
+ Name: name,
+ Value: value,
+ ValueFrom: valueFrom,
+ RefName: refName,
+ RefKey: refKey,
+ }
+
+ c.Env = append(c.Env, e)
+ }
+}
+
+func withEnvFrom(name, from string) ctrOption {
+ return func(c *Ctr) {
+ e := EnvFrom{
+ Name: name,
+ From: from,
+ }
+
+ c.EnvFrom = append(c.EnvFrom, e)
+ }
+}
+
func getCtrNameInPod(pod *Pod) string {
return fmt.Sprintf("%s-%s", pod.Name, defaultCtrName)
}
@@ -544,6 +635,19 @@ func getVolume(vType, vPath string) *Volume {
}
}
+type Env struct {
+ Name string
+ Value string
+ ValueFrom string
+ RefName string
+ RefKey string
+}
+
+type EnvFrom struct {
+ Name string
+ From string
+}
+
var _ = Describe("Podman generate kube", func() {
var (
tempdir string
@@ -581,7 +685,7 @@ var _ = Describe("Podman generate kube", func() {
})
It("podman play kube fail with nonexist authfile", func() {
- err := generatePodKubeYaml(getPod(), kubeYaml)
+ err := generateKubeYaml("pod", getPod(), kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", "--authfile", "/tmp/nonexist", kubeYaml})
@@ -592,7 +696,7 @@ var _ = Describe("Podman generate kube", func() {
It("podman play kube test correct command", func() {
pod := getPod()
- err := generatePodKubeYaml(pod, kubeYaml)
+ err := generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -609,7 +713,7 @@ var _ = Describe("Podman generate kube", func() {
It("podman play kube test correct command with only set command in yaml file", func() {
pod := getPod(withCtr(getCtr(withCmd([]string{"echo", "hello"}), withArg(nil))))
- err := generatePodKubeYaml(pod, kubeYaml)
+ err := generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -626,7 +730,7 @@ var _ = Describe("Podman generate kube", func() {
It("podman play kube test correct command with only set args in yaml file", func() {
pod := getPod(withCtr(getCtr(withImage(redis), withCmd(nil), withArg([]string{"echo", "hello"}))))
- err := generatePodKubeYaml(pod, kubeYaml)
+ err := generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -644,7 +748,7 @@ var _ = Describe("Podman generate kube", func() {
It("podman play kube test correct output", func() {
p := getPod(withCtr(getCtr(withCmd([]string{"echo", "hello"}), withArg([]string{"world"}))))
- err := generatePodKubeYaml(p, kubeYaml)
+ err := generateKubeYaml("pod", p, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -672,7 +776,7 @@ var _ = Describe("Podman generate kube", func() {
}
for _, v := range testSli {
pod := getPod(withPodName(v[0]), withRestartPolicy(v[1]))
- err := generatePodKubeYaml(pod, kubeYaml)
+ err := generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -686,9 +790,52 @@ var _ = Describe("Podman generate kube", func() {
}
})
+ It("podman play kube test env value from configmap", func() {
+ SkipIfRemote("configmap list is not supported as a param")
+ cmYamlPathname := filepath.Join(podmanTest.TempDir, "foo-cm.yaml")
+ cm := getConfigMap(withConfigMapName("foo"), withConfigMapData("FOO", "foo"))
+ err := generateKubeYaml("configmap", cm, cmYamlPathname)
+ Expect(err).To(BeNil())
+
+ pod := getPod(withCtr(getCtr(withEnv("FOO", "", "configmap", "foo", "FOO"))))
+ err = generateKubeYaml("pod", pod, kubeYaml)
+ Expect(err).To(BeNil())
+
+ kube := podmanTest.Podman([]string{"play", "kube", kubeYaml, "--configmap", cmYamlPathname})
+ kube.WaitWithDefaultTimeout()
+ Expect(kube.ExitCode()).To(Equal(0))
+
+ inspect := podmanTest.Podman([]string{"inspect", getCtrNameInPod(pod), "--format", "'{{ .Config.Env }}'"})
+ inspect.WaitWithDefaultTimeout()
+ Expect(inspect.ExitCode()).To(Equal(0))
+ Expect(inspect.OutputToString()).To(ContainSubstring(`FOO=foo`))
+ })
+
+ It("podman play kube test get all key-value pairs from configmap as envs", func() {
+ SkipIfRemote("configmap list is not supported as a param")
+ cmYamlPathname := filepath.Join(podmanTest.TempDir, "foo-cm.yaml")
+ cm := getConfigMap(withConfigMapName("foo"), withConfigMapData("FOO1", "foo1"), withConfigMapData("FOO2", "foo2"))
+ err := generateKubeYaml("configmap", cm, cmYamlPathname)
+ Expect(err).To(BeNil())
+
+ pod := getPod(withCtr(getCtr(withEnvFrom("foo", "configmap"))))
+ err = generateKubeYaml("pod", pod, kubeYaml)
+ Expect(err).To(BeNil())
+
+ kube := podmanTest.Podman([]string{"play", "kube", kubeYaml, "--configmap", cmYamlPathname})
+ kube.WaitWithDefaultTimeout()
+ Expect(kube.ExitCode()).To(Equal(0))
+
+ inspect := podmanTest.Podman([]string{"inspect", getCtrNameInPod(pod), "--format", "'{{ .Config.Env }}'"})
+ inspect.WaitWithDefaultTimeout()
+ Expect(inspect.ExitCode()).To(Equal(0))
+ Expect(inspect.OutputToString()).To(ContainSubstring(`FOO1=foo1`))
+ Expect(inspect.OutputToString()).To(ContainSubstring(`FOO2=foo2`))
+ })
+
It("podman play kube test hostname", func() {
pod := getPod()
- err := generatePodKubeYaml(pod, kubeYaml)
+ err := generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -704,7 +851,7 @@ var _ = Describe("Podman generate kube", func() {
It("podman play kube test with customized hostname", func() {
hostname := "myhostname"
pod := getPod(withHostname(hostname))
- err := generatePodKubeYaml(getPod(withHostname(hostname)), kubeYaml)
+ err := generateKubeYaml("pod", getPod(withHostname(hostname)), kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -727,7 +874,7 @@ var _ = Describe("Podman generate kube", func() {
"test4.podman.io",
}),
)
- err := generatePodKubeYaml(pod, kubeYaml)
+ err := generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -746,7 +893,7 @@ var _ = Describe("Podman generate kube", func() {
ctr := getCtr(withCapAdd([]string{capAdd}), withCmd([]string{"cat", "/proc/self/status"}), withArg(nil))
pod := getPod(withCtr(ctr))
- err := generatePodKubeYaml(pod, kubeYaml)
+ err := generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -764,7 +911,7 @@ var _ = Describe("Podman generate kube", func() {
ctr := getCtr(withCapDrop([]string{capDrop}))
pod := getPod(withCtr(ctr))
- err := generatePodKubeYaml(pod, kubeYaml)
+ err := generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -780,7 +927,7 @@ var _ = Describe("Podman generate kube", func() {
It("podman play kube no security context", func() {
// expect play kube to not fail if no security context is specified
pod := getPod(withCtr(getCtr(withSecurityContext(false))))
- err := generatePodKubeYaml(pod, kubeYaml)
+ err := generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -805,7 +952,7 @@ var _ = Describe("Podman generate kube", func() {
ctr := getCtr(withCmd([]string{"pwd"}), withArg(nil))
pod := getPod(withCtr(ctr), withAnnotation(ctrAnnotation, "localhost/"+filepath.Base(jsonFile)))
- err = generatePodKubeYaml(pod, kubeYaml)
+ err = generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
// CreateSeccompJson will put the profile into podmanTest.TempDir. Use --seccomp-profile-root to tell play kube where to look
@@ -832,7 +979,7 @@ var _ = Describe("Podman generate kube", func() {
ctr := getCtr(withCmd([]string{"pwd"}), withArg(nil))
pod := getPod(withCtr(ctr), withAnnotation("seccomp.security.alpha.kubernetes.io/pod", "localhost/"+filepath.Base(jsonFile)))
- err = generatePodKubeYaml(pod, kubeYaml)
+ err = generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
// CreateSeccompJson will put the profile into podmanTest.TempDir. Use --seccomp-profile-root to tell play kube where to look
@@ -848,7 +995,7 @@ var _ = Describe("Podman generate kube", func() {
It("podman play kube with pull policy of never should be 125", func() {
ctr := getCtr(withPullPolicy("never"), withImage(BB_GLIBC))
- err := generatePodKubeYaml(getPod(withCtr(ctr)), kubeYaml)
+ err := generateKubeYaml("pod", getPod(withCtr(ctr)), kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -858,7 +1005,7 @@ var _ = Describe("Podman generate kube", func() {
It("podman play kube with pull policy of missing", func() {
ctr := getCtr(withPullPolicy("missing"), withImage(BB))
- err := generatePodKubeYaml(getPod(withCtr(ctr)), kubeYaml)
+ err := generateKubeYaml("pod", getPod(withCtr(ctr)), kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -884,7 +1031,7 @@ var _ = Describe("Podman generate kube", func() {
oldBBinspect := inspect.InspectImageJSON()
ctr := getCtr(withPullPolicy("always"), withImage(BB))
- err := generatePodKubeYaml(getPod(withCtr(ctr)), kubeYaml)
+ err := generateKubeYaml("pod", getPod(withCtr(ctr)), kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -915,7 +1062,7 @@ var _ = Describe("Podman generate kube", func() {
oldBBinspect := inspect.InspectImageJSON()
ctr := getCtr(withImage(BB))
- err := generatePodKubeYaml(getPod(withCtr(ctr)), kubeYaml)
+ err := generateKubeYaml("pod", getPod(withCtr(ctr)), kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -973,7 +1120,7 @@ spec:
// Deployment related tests
It("podman play kube deployment 1 replica test correct command", func() {
deployment := getDeployment()
- err := generateDeploymentKubeYaml(deployment, kubeYaml)
+ err := generateKubeYaml("deployment", deployment, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -993,7 +1140,7 @@ spec:
var i, numReplicas int32
numReplicas = 5
deployment := getDeployment(withReplicas(numReplicas))
- err := generateDeploymentKubeYaml(deployment, kubeYaml)
+ err := generateKubeYaml("deployment", deployment, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -1016,7 +1163,7 @@ spec:
ctr := getCtr(withHostIP(ip, port), withImage(BB))
pod := getPod(withCtr(ctr))
- err := generatePodKubeYaml(pod, kubeYaml)
+ err := generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -1033,7 +1180,7 @@ spec:
hostPathLocation := filepath.Join(tempdir, "file")
pod := getPod(withVolume(getVolume(`""`, hostPathLocation)))
- err := generatePodKubeYaml(pod, kubeYaml)
+ err := generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -1048,7 +1195,7 @@ spec:
f.Close()
pod := getPod(withVolume(getVolume(`""`, hostPathLocation)))
- err = generatePodKubeYaml(pod, kubeYaml)
+ err = generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -1060,7 +1207,7 @@ spec:
hostPathLocation := filepath.Join(tempdir, "file")
pod := getPod(withVolume(getVolume("File", hostPathLocation)))
- err := generatePodKubeYaml(pod, kubeYaml)
+ err := generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -1075,7 +1222,7 @@ spec:
f.Close()
pod := getPod(withVolume(getVolume("File", hostPathLocation)))
- err = generatePodKubeYaml(pod, kubeYaml)
+ err = generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -1087,7 +1234,7 @@ spec:
hostPathLocation := filepath.Join(tempdir, "file")
pod := getPod(withVolume(getVolume("FileOrCreate", hostPathLocation)))
- err := generatePodKubeYaml(pod, kubeYaml)
+ err := generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -1103,7 +1250,7 @@ spec:
hostPathLocation := filepath.Join(tempdir, "file")
pod := getPod(withVolume(getVolume("DirectoryOrCreate", hostPathLocation)))
- err := generatePodKubeYaml(pod, kubeYaml)
+ err := generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -1123,7 +1270,7 @@ spec:
f.Close()
pod := getPod(withVolume(getVolume("Socket", hostPathLocation)))
- err = generatePodKubeYaml(pod, kubeYaml)
+ err = generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -1139,7 +1286,7 @@ spec:
ctr := getCtr(withVolumeMount(hostPathLocation, true), withImage(BB))
pod := getPod(withVolume(getVolume("File", hostPathLocation)), withCtr(ctr))
- err = generatePodKubeYaml(pod, kubeYaml)
+ err = generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
@@ -1162,7 +1309,7 @@ spec:
withReplicas(numReplicas),
withPod(getPod(withLabel(expectedLabelKey, expectedLabelValue))),
)
- err := generateDeploymentKubeYaml(deployment, kubeYaml)
+ err := generateKubeYaml("deployment", deployment, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})