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-rw-r--r--pkg/specgen/generate/kube/kube.go43
-rw-r--r--pkg/specgen/generate/kube/play_test.go109
-rw-r--r--test/e2e/play_kube_test.go104
3 files changed, 235 insertions, 21 deletions
diff --git a/pkg/specgen/generate/kube/kube.go b/pkg/specgen/generate/kube/kube.go
index 6adbef2dc..f31f5e711 100644
--- a/pkg/specgen/generate/kube/kube.go
+++ b/pkg/specgen/generate/kube/kube.go
@@ -210,12 +210,18 @@ func ToSpecGen(ctx context.Context, opts *CtrSpecGenOptions) (*specgen.SpecGener
}
for _, env := range opts.Container.Env {
- value := envVarValue(env, opts)
+ value, err := envVarValue(env, opts)
+ if err != nil {
+ return nil, err
+ }
envs[env.Name] = value
}
for _, envFrom := range opts.Container.EnvFrom {
- cmEnvs := envVarsFrom(envFrom, opts)
+ cmEnvs, err := envVarsFrom(envFrom, opts)
+ if err != nil {
+ return nil, err
+ }
for k, v := range cmEnvs {
envs[k] = v
@@ -326,39 +332,54 @@ func quantityToInt64(quantity *resource.Quantity) (int64, error) {
}
// envVarsFrom returns all key-value pairs as env vars from a configMap that matches the envFrom setting of a container
-func envVarsFrom(envFrom v1.EnvFromSource, opts *CtrSpecGenOptions) map[string]string {
+func envVarsFrom(envFrom v1.EnvFromSource, opts *CtrSpecGenOptions) (map[string]string, error) {
envs := map[string]string{}
if envFrom.ConfigMapRef != nil {
- cmName := envFrom.ConfigMapRef.Name
+ cmRef := envFrom.ConfigMapRef
+ err := errors.Errorf("Configmap %v not found", cmRef.Name)
for _, c := range opts.ConfigMaps {
- if cmName == c.Name {
+ if cmRef.Name == c.Name {
envs = c.Data
+ err = nil
break
}
}
+
+ if err != nil && (cmRef.Optional == nil || !*cmRef.Optional) {
+ return nil, err
+ }
}
- return envs
+ return envs, nil
}
// envVarValue returns the environment variable value configured within the container's env setting.
// It gets the value from a configMap if specified, otherwise returns env.Value
-func envVarValue(env v1.EnvVar, opts *CtrSpecGenOptions) string {
+func envVarValue(env v1.EnvVar, opts *CtrSpecGenOptions) (string, error) {
if env.ValueFrom != nil {
if env.ValueFrom.ConfigMapKeyRef != nil {
+ cmKeyRef := env.ValueFrom.ConfigMapKeyRef
+ err := errors.Errorf("Cannot set env %v: configmap %v not found", env.Name, cmKeyRef.Name)
+
for _, c := range opts.ConfigMaps {
- if env.ValueFrom.ConfigMapKeyRef.Name == c.Name {
- if value, ok := c.Data[env.ValueFrom.ConfigMapKeyRef.Key]; ok {
- return value
+ if cmKeyRef.Name == c.Name {
+ if value, ok := c.Data[cmKeyRef.Key]; ok {
+ return value, nil
}
+ err = errors.Errorf("Cannot set env %v: key %s not found in configmap %v", env.Name, cmKeyRef.Key, cmKeyRef.Name)
+ break
}
}
+ if cmKeyRef.Optional == nil || !*cmKeyRef.Optional {
+ return "", err
+ }
+ return "", nil
}
}
- return env.Value
+ return env.Value, nil
}
// getPodPorts converts a slice of kube container descriptions to an
diff --git a/pkg/specgen/generate/kube/play_test.go b/pkg/specgen/generate/kube/play_test.go
index 35975a70b..c38b3e40b 100644
--- a/pkg/specgen/generate/kube/play_test.go
+++ b/pkg/specgen/generate/kube/play_test.go
@@ -13,6 +13,7 @@ func TestEnvVarsFrom(t *testing.T) {
name string
envFrom v1.EnvFromSource
options CtrSpecGenOptions
+ succeed bool
expected map[string]string
}{
{
@@ -27,6 +28,7 @@ func TestEnvVarsFrom(t *testing.T) {
CtrSpecGenOptions{
ConfigMaps: configMapList,
},
+ true,
map[string]string{
"myvar": "foo",
},
@@ -43,6 +45,23 @@ func TestEnvVarsFrom(t *testing.T) {
CtrSpecGenOptions{
ConfigMaps: configMapList,
},
+ false,
+ nil,
+ },
+ {
+ "OptionalConfigMapDoesNotExist",
+ v1.EnvFromSource{
+ ConfigMapRef: &v1.ConfigMapEnvSource{
+ LocalObjectReference: v1.LocalObjectReference{
+ Name: "doesnotexist",
+ },
+ Optional: &optional,
+ },
+ },
+ CtrSpecGenOptions{
+ ConfigMaps: configMapList,
+ },
+ true,
map[string]string{},
},
{
@@ -57,6 +76,23 @@ func TestEnvVarsFrom(t *testing.T) {
CtrSpecGenOptions{
ConfigMaps: []v1.ConfigMap{},
},
+ false,
+ nil,
+ },
+ {
+ "OptionalEmptyConfigMapList",
+ v1.EnvFromSource{
+ ConfigMapRef: &v1.ConfigMapEnvSource{
+ LocalObjectReference: v1.LocalObjectReference{
+ Name: "foo",
+ },
+ Optional: &optional,
+ },
+ },
+ CtrSpecGenOptions{
+ ConfigMaps: []v1.ConfigMap{},
+ },
+ true,
map[string]string{},
},
}
@@ -64,7 +100,8 @@ func TestEnvVarsFrom(t *testing.T) {
for _, test := range tests {
test := test
t.Run(test.name, func(t *testing.T) {
- result := envVarsFrom(test.envFrom, &test.options)
+ result, err := envVarsFrom(test.envFrom, &test.options)
+ assert.Equal(t, err == nil, test.succeed)
assert.Equal(t, test.expected, result)
})
}
@@ -75,6 +112,7 @@ func TestEnvVarValue(t *testing.T) {
name string
envVar v1.EnvVar
options CtrSpecGenOptions
+ succeed bool
expected string
}{
{
@@ -93,6 +131,7 @@ func TestEnvVarValue(t *testing.T) {
CtrSpecGenOptions{
ConfigMaps: configMapList,
},
+ true,
"foo",
},
{
@@ -111,6 +150,27 @@ func TestEnvVarValue(t *testing.T) {
CtrSpecGenOptions{
ConfigMaps: configMapList,
},
+ false,
+ "",
+ },
+ {
+ "OptionalContainerKeyDoesNotExistInConfigMap",
+ v1.EnvVar{
+ Name: "FOO",
+ ValueFrom: &v1.EnvVarSource{
+ ConfigMapKeyRef: &v1.ConfigMapKeySelector{
+ LocalObjectReference: v1.LocalObjectReference{
+ Name: "foo",
+ },
+ Key: "doesnotexist",
+ Optional: &optional,
+ },
+ },
+ },
+ CtrSpecGenOptions{
+ ConfigMaps: configMapList,
+ },
+ true,
"",
},
{
@@ -129,6 +189,27 @@ func TestEnvVarValue(t *testing.T) {
CtrSpecGenOptions{
ConfigMaps: configMapList,
},
+ false,
+ "",
+ },
+ {
+ "OptionalConfigMapDoesNotExist",
+ v1.EnvVar{
+ Name: "FOO",
+ ValueFrom: &v1.EnvVarSource{
+ ConfigMapKeyRef: &v1.ConfigMapKeySelector{
+ LocalObjectReference: v1.LocalObjectReference{
+ Name: "doesnotexist",
+ },
+ Key: "myvar",
+ Optional: &optional,
+ },
+ },
+ },
+ CtrSpecGenOptions{
+ ConfigMaps: configMapList,
+ },
+ true,
"",
},
{
@@ -147,6 +228,27 @@ func TestEnvVarValue(t *testing.T) {
CtrSpecGenOptions{
ConfigMaps: []v1.ConfigMap{},
},
+ false,
+ "",
+ },
+ {
+ "OptionalEmptyConfigMapList",
+ v1.EnvVar{
+ Name: "FOO",
+ ValueFrom: &v1.EnvVarSource{
+ ConfigMapKeyRef: &v1.ConfigMapKeySelector{
+ LocalObjectReference: v1.LocalObjectReference{
+ Name: "foo",
+ },
+ Key: "myvar",
+ Optional: &optional,
+ },
+ },
+ },
+ CtrSpecGenOptions{
+ ConfigMaps: []v1.ConfigMap{},
+ },
+ true,
"",
},
}
@@ -154,7 +256,8 @@ func TestEnvVarValue(t *testing.T) {
for _, test := range tests {
test := test
t.Run(test.name, func(t *testing.T) {
- result := envVarValue(test.envVar, &test.options)
+ result, err := envVarValue(test.envVar, &test.options)
+ assert.Equal(t, err == nil, test.succeed)
assert.Equal(t, test.expected, result)
})
}
@@ -184,3 +287,5 @@ var configMapList = []v1.ConfigMap{
},
},
}
+
+var optional = true
diff --git a/test/e2e/play_kube_test.go b/test/e2e/play_kube_test.go
index cc4450379..943887e32 100644
--- a/test/e2e/play_kube_test.go
+++ b/test/e2e/play_kube_test.go
@@ -141,6 +141,7 @@ spec:
configMapKeyRef:
name: {{ .RefName }}
key: {{ .RefKey }}
+ optional: {{ .Optional }}
{{ else }}
value: {{ .Value }}
{{ end }}
@@ -151,6 +152,7 @@ spec:
{{ if (eq .From "configmap") }}
- configMapRef:
name: {{ .Name }}
+ optional: {{ .Optional }}
{{ end }}
{{ end }}
{{ end }}
@@ -746,7 +748,7 @@ func withVolumeMount(mountPath string, readonly bool) ctrOption {
}
}
-func withEnv(name, value, valueFrom, refName, refKey string) ctrOption {
+func withEnv(name, value, valueFrom, refName, refKey string, optional bool) ctrOption {
return func(c *Ctr) {
e := Env{
Name: name,
@@ -754,17 +756,19 @@ func withEnv(name, value, valueFrom, refName, refKey string) ctrOption {
ValueFrom: valueFrom,
RefName: refName,
RefKey: refKey,
+ Optional: optional,
}
c.Env = append(c.Env, e)
}
}
-func withEnvFrom(name, from string) ctrOption {
+func withEnvFrom(name, from string, optional bool) ctrOption {
return func(c *Ctr) {
e := EnvFrom{
- Name: name,
- From: from,
+ Name: name,
+ From: from,
+ Optional: optional,
}
c.EnvFrom = append(c.EnvFrom, e)
@@ -822,11 +826,13 @@ type Env struct {
ValueFrom string
RefName string
RefKey string
+ Optional bool
}
type EnvFrom struct {
- Name string
- From string
+ Name string
+ From string
+ Optional bool
}
func milliCPUToQuota(milliCPU string) int {
@@ -1062,7 +1068,7 @@ var _ = Describe("Podman play kube", func() {
err := generateKubeYaml("configmap", cm, cmYamlPathname)
Expect(err).To(BeNil())
- pod := getPod(withCtr(getCtr(withEnv("FOO", "", "configmap", "foo", "FOO"))))
+ pod := getPod(withCtr(getCtr(withEnv("FOO", "", "configmap", "foo", "FOO", false))))
err = generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
@@ -1076,6 +1082,68 @@ var _ = Describe("Podman play kube", func() {
Expect(inspect.OutputToString()).To(ContainSubstring(`FOO=foo`))
})
+ It("podman play kube test required env value from configmap with missing key", 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", "MISSING_KEY", false))))
+ err = generateKubeYaml("pod", pod, kubeYaml)
+ Expect(err).To(BeNil())
+
+ kube := podmanTest.Podman([]string{"play", "kube", kubeYaml, "--configmap", cmYamlPathname})
+ kube.WaitWithDefaultTimeout()
+ Expect(kube.ExitCode()).To(Not(Equal(0)))
+ })
+
+ It("podman play kube test required env value from missing configmap", func() {
+ pod := getPod(withCtr(getCtr(withEnv("FOO", "", "configmap", "missing_cm", "FOO", false))))
+ err = generateKubeYaml("pod", pod, kubeYaml)
+ Expect(err).To(BeNil())
+
+ kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
+ kube.WaitWithDefaultTimeout()
+ Expect(kube.ExitCode()).To(Not(Equal(0)))
+ })
+
+ It("podman play kube test optional env value from configmap with missing key", 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", "MISSING_KEY", true))))
+ 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", "'{{ range .Config.Env }}[{{ . }}]{{end}}'"})
+ inspect.WaitWithDefaultTimeout()
+ Expect(inspect.ExitCode()).To(Equal(0))
+ Expect(inspect.OutputToString()).To(ContainSubstring(`[FOO=]`))
+ })
+
+ It("podman play kube test optional env value from missing configmap", func() {
+ pod := getPod(withCtr(getCtr(withEnv("FOO", "", "configmap", "missing_cm", "FOO", true))))
+ err = generateKubeYaml("pod", pod, kubeYaml)
+ Expect(err).To(BeNil())
+
+ kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
+ kube.WaitWithDefaultTimeout()
+ Expect(kube.ExitCode()).To(Equal(0))
+
+ inspect := podmanTest.Podman([]string{"inspect", getCtrNameInPod(pod), "--format", "'{{ range .Config.Env }}[{{ . }}]{{end}}'"})
+ inspect.WaitWithDefaultTimeout()
+ Expect(inspect.ExitCode()).To(Equal(0))
+ Expect(inspect.OutputToString()).To(ContainSubstring(`[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")
@@ -1083,7 +1151,7 @@ var _ = Describe("Podman play kube", func() {
err := generateKubeYaml("configmap", cm, cmYamlPathname)
Expect(err).To(BeNil())
- pod := getPod(withCtr(getCtr(withEnvFrom("foo", "configmap"))))
+ pod := getPod(withCtr(getCtr(withEnvFrom("foo", "configmap", false))))
err = generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
@@ -1098,6 +1166,26 @@ var _ = Describe("Podman play kube", func() {
Expect(inspect.OutputToString()).To(ContainSubstring(`FOO2=foo2`))
})
+ It("podman play kube test get all key-value pairs from required configmap as envs", func() {
+ pod := getPod(withCtr(getCtr(withEnvFrom("missing_cm", "configmap", false))))
+ err = generateKubeYaml("pod", pod, kubeYaml)
+ Expect(err).To(BeNil())
+
+ kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
+ kube.WaitWithDefaultTimeout()
+ Expect(kube.ExitCode()).To(Not(Equal(0)))
+ })
+
+ It("podman play kube test get all key-value pairs from optional configmap as envs", func() {
+ pod := getPod(withCtr(getCtr(withEnvFrom("missing_cm", "configmap", true))))
+ err = generateKubeYaml("pod", pod, kubeYaml)
+ Expect(err).To(BeNil())
+
+ kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
+ kube.WaitWithDefaultTimeout()
+ Expect(kube.ExitCode()).To(Equal(0))
+ })
+
It("podman play kube test hostname", func() {
pod := getPod()
err := generateKubeYaml("pod", pod, kubeYaml)
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-17 09:21:16 +0000