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Add restart_policy option for init containers #2449

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Add restart_policy option for init containers #2449

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8feede8
add restart policy for init containers
arthurgur Mar 19, 2024
172fc9f
rebase
arthurgur Mar 19, 2024
350a4fb
fix
arthurgur Mar 19, 2024
ba4feda
fix whitespace
arthurgur Mar 19, 2024
1e53b58
add change log
arthurgur Mar 20, 2024
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3 changes: 3 additions & 0 deletions .changelog/2449.txt
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Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
```release-note:enhancement
`kubernetes/schema_container.go`: add support of `restart_policy` option for sidecar init containers
```
13 changes: 13 additions & 0 deletions kubernetes/schema_container.go
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Original file line number Diff line number Diff line change
Expand Up @@ -587,6 +587,19 @@ func containerFields(isUpdatable bool) map[string]*schema.Schema {
Schema: resourcesFieldV1(isUpdatable),
},
},
"restart_policy": {
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From first glance be sure to include a test case for this new field. You also want to make sure to add a changelog-entry, this is mentioned in CHANGELOG_GUIDE

The changelog entry and new test should be added into the description of the PR also.

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Although you added the changelog you are still missing a testcase that adds this. You would be adding this inside

terraform-provider-kubernetes/kubernetes/resource_kubernetes_deployment_v1_test.go

Lines 90 to 196 in bff3ae2

func TestAccKubernetesDeploymentV1_initContainerForceNew(t *testing.T) {
var conf1, conf2 appsv1.Deployment
name := fmt.Sprintf("tf-acc-test-%s", acctest.RandStringFromCharSet(10, acctest.CharSetAlphaNum))
namespace := fmt.Sprintf("tf-acc-test-%s", acctest.RandStringFromCharSet(10, acctest.CharSetAlphaNum))
resourceName := "kubernetes_deployment_v1.test"
imageName := busyboxImage
imageName1 := agnhostImage
initCommand := "until nslookup " + name + "-init-service." + namespace + ".svc.cluster.local; do echo waiting for init-service; sleep 2; done"
resource.ParallelTest(t, resource.TestCase{
PreCheck: func() { testAccPreCheck(t) },
IDRefreshIgnore: []string{"metadata.0.resource_version"},
ProviderFactories: testAccProviderFactories,
CheckDestroy: testAccCheckKubernetesDeploymentV1Destroy,
Steps: []resource.TestStep{
{
Config: testAccKubernetesConfig_ignoreAnnotations() +
testAccKubernetesDeploymentV1Config_initContainer(
namespace, name, imageName, imageName1, "64Mi", "testvar",
"initcontainer2", initCommand, "IfNotPresent"),
Check: resource.ComposeAggregateTestCheckFunc(
testAccCheckKubernetesDeploymentV1Exists(resourceName, &conf1),
resource.TestCheckResourceAttr(resourceName, "spec.0.template.0.spec.0.init_container.0.image", imageName),
resource.TestCheckResourceAttr(resourceName, "spec.0.template.0.spec.0.init_container.0.resources.0.requests.memory", "64Mi"),
resource.TestCheckResourceAttr(resourceName, "spec.0.template.0.spec.0.init_container.0.env.2.value", "testvar"),
resource.TestCheckResourceAttr(resourceName, "spec.0.template.0.spec.0.init_container.1.name", "initcontainer2"),
resource.TestCheckResourceAttr(resourceName, "spec.0.template.0.spec.0.init_container.1.image", imageName1),
resource.TestCheckResourceAttr(resourceName, "spec.0.template.0.spec.0.init_container.1.command.2", initCommand),
resource.TestCheckResourceAttr(resourceName, "spec.0.template.0.spec.0.init_container.1.image_pull_policy", "IfNotPresent"),
),
},
{ // Test for non-empty plans. No modification.
Config: testAccKubernetesConfig_ignoreAnnotations() +
testAccKubernetesDeploymentV1Config_initContainer(
namespace, name, imageName, imageName1, "64Mi", "testvar",
"initcontainer2", initCommand, "IfNotPresent"),
PlanOnly: true,
},
{ // Modify resources.limits.memory.
Config: testAccKubernetesConfig_ignoreAnnotations() +
testAccKubernetesDeploymentV1Config_initContainer(
namespace, name, imageName, imageName1, "80Mi", "testvar",
"initcontainer2", initCommand, "IfNotPresent"),
Check: resource.ComposeAggregateTestCheckFunc(
testAccCheckKubernetesDeploymentV1Exists(resourceName, &conf2),
resource.TestCheckResourceAttr(resourceName, "spec.0.template.0.spec.0.init_container.0.resources.0.requests.memory", "80Mi"),
testAccCheckKubernetesDeploymentForceNew(&conf1, &conf2, false),
),
},
{ // Modify name of environment variable.
Config: testAccKubernetesConfig_ignoreAnnotations() +
testAccKubernetesDeploymentV1Config_initContainer(
namespace, name, imageName, imageName1, "64Mi", "testvar",
"initcontainer2", initCommand, "IfNotPresent"),
Check: resource.ComposeAggregateTestCheckFunc(
testAccCheckKubernetesDeploymentV1Exists(resourceName, &conf2),
resource.TestCheckResourceAttr(resourceName, "spec.0.template.0.spec.0.init_container.0.env.2.value", "testvar"),
testAccCheckKubernetesDeploymentForceNew(&conf1, &conf2, false),
),
},
{ // Modify init_container's command.
Config: testAccKubernetesConfig_ignoreAnnotations() +
testAccKubernetesDeploymentV1Config_initContainer(
namespace, name, imageName, imageName1, "64Mi", "testvar",
"initcontainer2", "echo done", "IfNotPresent"),
Check: resource.ComposeAggregateTestCheckFunc(
testAccCheckKubernetesDeploymentV1Exists(resourceName, &conf2),
resource.TestCheckResourceAttr(resourceName, "spec.0.template.0.spec.0.init_container.1.command.2", "echo done"),
testAccCheckKubernetesDeploymentForceNew(&conf1, &conf2, false),
),
},
{ // Modify init_container's image_pull_policy.
Config: testAccKubernetesConfig_ignoreAnnotations() +
testAccKubernetesDeploymentV1Config_initContainer(
namespace, name, imageName, imageName1, "64Mi", "testvar",
"initcontainer2", "echo done", "Never"),
Check: resource.ComposeAggregateTestCheckFunc(
testAccCheckKubernetesDeploymentV1Exists(resourceName, &conf2),
resource.TestCheckResourceAttr(resourceName, "spec.0.template.0.spec.0.init_container.1.image_pull_policy", "Never"),
testAccCheckKubernetesDeploymentForceNew(&conf1, &conf2, false),
),
},
{ // Modify init_container's image
Config: testAccKubernetesConfig_ignoreAnnotations() +
testAccKubernetesDeploymentV1Config_initContainer(
namespace, name, imageName, imageName, "64Mi", "testvar",
"initcontainer2", "echo done", "Never"),
Check: resource.ComposeAggregateTestCheckFunc(
testAccCheckKubernetesDeploymentV1Exists(resourceName, &conf2),
resource.TestCheckResourceAttr(resourceName, "spec.0.template.0.spec.0.init_container.1.image", imageName),
testAccCheckKubernetesDeploymentForceNew(&conf1, &conf2, false),
),
},
{ // Modify init_container's name.
Config: testAccKubernetesConfig_ignoreAnnotations() +
testAccKubernetesDeploymentV1Config_initContainer(
namespace, name, imageName, imageName, "64Mi", "testvar",
"initcontainertwo", "echo done", "Never"),
Check: resource.ComposeAggregateTestCheckFunc(
testAccCheckKubernetesDeploymentV1Exists(resourceName, &conf2),
resource.TestCheckResourceAttr(resourceName, "spec.0.template.0.spec.0.init_container.1.name", "initcontainertwo"),
testAccCheckKubernetesDeploymentForceNew(&conf1, &conf2, false),
),
},
},
})
}

as well as

terraform-provider-kubernetes/kubernetes/resource_kubernetes_pod_v1_test.go

Lines 143 to 187 in bff3ae2

func TestAccKubernetesPodV1_initContainer_updateForcesNew(t *testing.T) {
var conf1, conf2 api.Pod
podName := acctest.RandomWithPrefix("tf-acc-test")
image := busyboxImage
image1 := agnhostImage
resourceName := "kubernetes_pod_v1.test"
resource.ParallelTest(t, resource.TestCase{
PreCheck: func() { testAccPreCheck(t) },
ProviderFactories: testAccProviderFactories,
CheckDestroy: testAccCheckKubernetesPodV1Destroy,
Steps: []resource.TestStep{
{
Config: testAccKubernetesConfig_ignoreAnnotations() +
testAccKubernetesPodV1ConfigWithInitContainer(podName, image),
Check: resource.ComposeAggregateTestCheckFunc(
testAccCheckKubernetesPodV1Exists(resourceName, &conf1),
resource.TestCheckResourceAttr(resourceName, "metadata.0.name", podName),
resource.TestCheckResourceAttr(resourceName, "spec.0.container.0.name", "container"),
resource.TestCheckResourceAttr(resourceName, "spec.0.init_container.0.name", "initcontainer"),
resource.TestCheckResourceAttr(resourceName, "spec.0.init_container.0.image", image),
),
},
{
ResourceName: resourceName,
ImportState: true,
ImportStateVerify: true,
ImportStateVerifyIgnore: []string{"metadata.0.resource_version"},
},
{
Config: testAccKubernetesConfig_ignoreAnnotations() +
testAccKubernetesPodV1ConfigWithInitContainer(podName, image1),
Check: resource.ComposeAggregateTestCheckFunc(
testAccCheckKubernetesPodV1Exists(resourceName, &conf2),
resource.TestCheckResourceAttr(resourceName, "metadata.0.name", podName),
resource.TestCheckResourceAttr(resourceName, "spec.0.container.0.name", "container"),
resource.TestCheckResourceAttr(resourceName, "spec.0.init_container.0.name", "initcontainer"),
resource.TestCheckResourceAttr(resourceName, "spec.0.init_container.0.image", image1),
testAccCheckKubernetesPodForceNew(&conf1, &conf2, true),
),
},
},
})
}

Refer to the contribution guideline to learn how to run tests locally on your machine

Type: schema.TypeString,
Optional: true,
Computed: isComputed,
ForceNew: !isUpdatable,
Default: conditionalDefault(!isComputed, string(corev1.RestartPolicyAlways)),
Description: "Restart policy for init container. One of Always, OnFailure, Never. More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#restart-policy.",
ValidateFunc: validation.StringInSlice([]string{
string(corev1.RestartPolicyAlways),
string(corev1.RestartPolicyOnFailure),
string(corev1.RestartPolicyNever),
}, false),
},
"security_context": {
Type: schema.TypeList,
Optional: true,
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