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chore: backport podconfig to pr-379
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shreddedbacon committed Dec 4, 2024
1 parent 221439c commit 09c4d52
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Showing 9 changed files with 380 additions and 13 deletions.
9 changes: 9 additions & 0 deletions cmd/template_backups.go
Original file line number Diff line number Diff line change
Expand Up @@ -77,6 +77,15 @@ func BackupTemplateGeneration(g generator.GeneratorInput,
helpers.WriteTemplateFile(fmt.Sprintf("%s/%s.yaml", savedTemplates, "k8up-lagoon-backup-schedule"), templateYAML)
}

// generate the backup schedule templates
templateYAML, err = backuptemplate.GenerateBackupPodConfig(*lagoonBuild.BuildValues)
if err != nil {
return fmt.Errorf("couldn't generate template: %v", err)
}
if len(templateYAML) > 0 {
helpers.WriteTemplateFile(fmt.Sprintf("%s/%s.yaml", savedTemplates, "k8up-rootless-workload-podconfig"), templateYAML)
}

// generate any prebackuppod templates
templateYAML, err = backuptemplate.GeneratePreBackupPod(*lagoonBuild.BuildValues)
if err != nil {
Expand Down
25 changes: 23 additions & 2 deletions cmd/template_backups_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ import (
"reflect"
"testing"

"github.com/andreyvit/diff"
"github.com/uselagoon/build-deploy-tool/internal/dbaasclient"
"github.com/uselagoon/build-deploy-tool/internal/helpers"
"github.com/uselagoon/build-deploy-tool/internal/lagoon"
Expand Down Expand Up @@ -240,6 +241,27 @@ func TestBackupTemplateGeneration(t *testing.T) {
templatePath: "testdata/output",
want: "internal/testdata/node/backup-templates/backup-8",
},
{
name: "test-generic-backup-rootless-workloads",
args: testdata.GetSeedData(
testdata.TestData{
ProjectName: "example-project",
EnvironmentName: "main",
Branch: "main",
EnvironmentType: "production",
LagoonYAML: "internal/testdata/node/lagoon.yml",
K8UPVersion: "v2",
ProjectVariables: []lagoon.EnvironmentVariable{
{
Name: "LAGOON_FEATURE_FLAG_ROOTLESS_WORKLOAD",
Value: "enabled",
Scope: "build",
},
},
}, true),
templatePath: "testoutput",
want: "internal/testdata/node/backup-templates/test-generic-backup-rootless-workloads",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
Expand Down Expand Up @@ -307,8 +329,7 @@ func TestBackupTemplateGeneration(t *testing.T) {
t.Errorf("couldn't read file %v: %v", tt.want, err)
}
if !reflect.DeepEqual(f1, r1) {
fmt.Println(string(f1))
t.Errorf("resulting templates do not match")
t.Errorf("TemplateLagoonServices() = \n%v", diff.LineDiff(string(r1), string(f1)))
}
}
}
Expand Down
131 changes: 131 additions & 0 deletions internal/templating/backups/template_podconfig.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,131 @@
package backups

import (
"fmt"

"github.com/uselagoon/build-deploy-tool/internal/generator"
"github.com/uselagoon/build-deploy-tool/internal/helpers"

k8upv1 "github.com/k8up-io/k8up/v2/api/v1"
corev1 "k8s.io/api/core/v1"
apivalidation "k8s.io/apimachinery/pkg/api/validation"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
metavalidation "k8s.io/apimachinery/pkg/apis/meta/v1/validation"

"sigs.k8s.io/yaml"
)

func GenerateBackupPodConfig(
lValues generator.BuildValues,
) ([]byte, error) {
// generate the template spec

var result []byte
separator := []byte("---\n")

// create the podconfig
if lValues.BackupsEnabled {
switch lValues.Backup.K8upVersion {
case "v2":
if lValues.PodSecurityContext.RunAsUser != 0 {
podConfig := &k8upv1.PodConfig{
TypeMeta: metav1.TypeMeta{
Kind: "PodConfig",
APIVersion: k8upv1.GroupVersion.String(),
},
ObjectMeta: metav1.ObjectMeta{
Name: "k8up-rootless-workload-podconfig",
},
Spec: k8upv1.PodConfigSpec{
Template: corev1.PodTemplateSpec{
Spec: corev1.PodSpec{
SecurityContext: &corev1.PodSecurityContext{
RunAsUser: helpers.Int64Ptr(lValues.PodSecurityContext.RunAsUser),
RunAsGroup: helpers.Int64Ptr(lValues.PodSecurityContext.RunAsGroup),
FSGroup: helpers.Int64Ptr(lValues.PodSecurityContext.FsGroup),
},
},
},
},
}
// add the default labels
podConfig.ObjectMeta.Labels = map[string]string{
"app.kubernetes.io/name": "k8up-podconfig",
"app.kubernetes.io/instance": "k8up-rootless-workload-podconfig",
"app.kubernetes.io/managed-by": "build-deploy-tool",
"lagoon.sh/template": fmt.Sprintf("%s-%s", "k8up-podconfig", "0.1.0"),
"lagoon.sh/service": "k8up-rootless-workload-podconfig",
"lagoon.sh/service-type": "k8up-podconfig",
"lagoon.sh/project": lValues.Project,
"lagoon.sh/environment": lValues.Environment,
"lagoon.sh/environmentType": lValues.EnvironmentType,
"lagoon.sh/buildType": lValues.BuildType,
}

// add the default annotations
podConfig.ObjectMeta.Annotations = map[string]string{
"lagoon.sh/version": lValues.LagoonVersion,
}

// add any additional labels
additionalLabels := map[string]string{}
additionalAnnotations := map[string]string{}
if lValues.BuildType == "branch" {
additionalAnnotations["lagoon.sh/branch"] = lValues.Branch
} else if lValues.BuildType == "pullrequest" {
additionalAnnotations["lagoon.sh/prNumber"] = lValues.PRNumber
additionalAnnotations["lagoon.sh/prHeadBranch"] = lValues.PRHeadBranch
additionalAnnotations["lagoon.sh/prBaseBranch"] = lValues.PRBaseBranch

}
for key, value := range additionalLabels {
podConfig.ObjectMeta.Labels[key] = value
}
// add any additional annotations
for key, value := range additionalAnnotations {
podConfig.ObjectMeta.Annotations[key] = value
}
// validate any annotations
if err := apivalidation.ValidateAnnotations(podConfig.ObjectMeta.Annotations, nil); err != nil {
if len(err) != 0 {
return nil, fmt.Errorf("the annotations for %s are not valid: %v", "k8up-rootless-workload-podconfig", err)
}
}
// validate any labels
if err := metavalidation.ValidateLabels(podConfig.ObjectMeta.Labels, nil); err != nil {
if len(err) != 0 {
return nil, fmt.Errorf("the labels for %s are not valid: %v", "k8up-rootless-workload-podconfig", err)
}
}

// check length of labels
err := helpers.CheckLabelLength(podConfig.ObjectMeta.Labels)
if err != nil {
return nil, err
}
// @TODO: we should review this in the future when we stop doing `kubectl apply` in the builds :)
// marshal the resulting ingress
podconfigBytes, err := yaml.Marshal(podConfig)
if err != nil {
return nil, err
}
podconfigBytes, _ = CleanupPodConfigYAML(podconfigBytes)
// add the seperator to the template so that it can be `kubectl apply` in bulk as part
// of the current build process
result = append(separator[:], podconfigBytes[:]...)
}
}
}
return result, nil
}

// helper function to remove data from the yaml spec so that kubectl will apply without validation errors
// this is only needed because we use kubectl in builds for now
func CleanupPodConfigYAML(a []byte) ([]byte, error) {
tmpMap := map[string]interface{}{}
yaml.Unmarshal(a, &tmpMap)
delete(tmpMap["spec"].(map[string]interface{})["template"].(map[string]interface{}), "metadata")
delete(tmpMap["spec"].(map[string]interface{})["template"].(map[string]interface{})["spec"].(map[string]interface{}), "containers")
b, _ := yaml.Marshal(tmpMap)
return b, nil
}
103 changes: 103 additions & 0 deletions internal/templating/backups/template_podconfig_test.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,103 @@
package backups

import (
"os"
"reflect"
"testing"
"time"

"github.com/andreyvit/diff"
"github.com/uselagoon/build-deploy-tool/internal/dbaasclient"
"github.com/uselagoon/build-deploy-tool/internal/generator"
)

func TestGenerateBackupPodConfig(t *testing.T) {
type args struct {
lValues generator.BuildValues
}
tests := []struct {
name string
description string
args args
want string
wantErr bool
wantEmpty bool
}{
{
name: "test-k8up-v1-rootless",
description: "this will generate a podconfig if the environment is configured for rootless workloads",
args: args{
lValues: generator.BuildValues{
Project: "example-project",
Environment: "environment",
EnvironmentType: "production",
Namespace: "myexample-project-environment",
BuildType: "branch",
LagoonVersion: "v2.x.x",
Kubernetes: "generator.local",
Branch: "environment",
BackupsEnabled: true,
Backup: generator.BackupConfiguration{
K8upVersion: "v2",
},
FeatureFlags: map[string]bool{
"rootlessworkloads": true,
},
PodSecurityContext: generator.PodSecurityContext{
RunAsGroup: 0,
RunAsUser: 10000,
FsGroup: 10001,
},
},
},
want: "test-resources/result-podconfig1.yaml",
},
{
name: "test-k8up-v1-root",
description: "this will not generate a podconfig if the environment is not configured for rootless workloads",
args: args{
lValues: generator.BuildValues{
Project: "example-project",
Environment: "environment",
EnvironmentType: "production",
Namespace: "myexample-project-environment",
BuildType: "branch",
LagoonVersion: "v2.x.x",
Kubernetes: "generator.local",
Branch: "environment",
BackupsEnabled: true,
Backup: generator.BackupConfiguration{
K8upVersion: "v2",
},
},
},
wantEmpty: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
// add dbaasclient overrides for tests
tt.args.lValues.DBaaSClient = dbaasclient.NewClient(dbaasclient.Client{
RetryMax: 5,
RetryWaitMin: time.Duration(10) * time.Millisecond,
RetryWaitMax: time.Duration(50) * time.Millisecond,
})
got, err := GenerateBackupPodConfig(tt.args.lValues)
if err != nil {
t.Errorf("couldn't generate template %v: %v", tt.want, err)
}
if tt.wantEmpty && len(got) > 0 {
t.Errorf("wanted empty, but got data:\n%v", string(got))
}
if !tt.wantEmpty {
r1, err := os.ReadFile(tt.want)
if err != nil {
t.Errorf("couldn't read file %v: %v", tt.want, err)
}
if !reflect.DeepEqual(string(got), string(r1)) {
t.Errorf("GenerateBackupPodConfig() = \n%v", diff.LineDiff(string(r1), string(got)))
}
}
})
}
}
20 changes: 9 additions & 11 deletions internal/templating/backups/template_prebackuppod.go
Original file line number Diff line number Diff line change
Expand Up @@ -149,7 +149,7 @@ func GeneratePreBackupPod(
return nil, err
}

pbpBytes, _ := RemoveYAML(prebackuppodBytes)
pbpBytes, _ := CleanupPreBackupPodYAML(prebackuppodBytes)
// add the seperator to the template so that it can be `kubectl apply` in bulk as part
// of the current build process
restoreResult := append(separator[:], pbpBytes[:]...)
Expand Down Expand Up @@ -238,7 +238,7 @@ func GeneratePreBackupPod(
if err != nil {
return nil, err
}
pbpBytes, _ := RemoveYAML(prebackuppodBytes)
pbpBytes, _ := CleanupPreBackupPodYAML(prebackuppodBytes)
// add the seperator to the template so that it can be `kubectl apply` in bulk as part
// of the current build process
restoreResult := append(separator[:], pbpBytes[:]...)
Expand All @@ -249,16 +249,14 @@ func GeneratePreBackupPod(
return result, nil
}

// helper function to remove the creationtimestamp from the prebackuppod pod spec so that kubectl will apply without validation errors
func RemoveYAML(a []byte) ([]byte, error) {
// helper function to remove data from the yaml spec so that kubectl will apply without validation errors
// this is only needed because we use kubectl in builds for now
func CleanupPreBackupPodYAML(a []byte) ([]byte, error) {
tmpMap := map[string]interface{}{}
yaml.Unmarshal(a, &tmpMap)
if _, ok := tmpMap["spec"].(map[string]interface{})["pod"].(map[string]interface{})["metadata"].(map[string]interface{})["creationTimestamp"]; ok {
delete(tmpMap["spec"].(map[string]interface{})["pod"].(map[string]interface{})["metadata"].(map[string]interface{}), "creationTimestamp")
b, _ := yaml.Marshal(tmpMap)
return b, nil
}
return a, nil
delete(tmpMap["spec"].(map[string]interface{})["pod"].(map[string]interface{})["metadata"].(map[string]interface{}), "creationTimestamp")
b, _ := yaml.Marshal(tmpMap)
return b, nil
}

var funcMap = template.FuncMap{
Expand All @@ -267,7 +265,7 @@ var funcMap = template.FuncMap{

// varfix just uppercases and replaces - with _ for variable names
func varFix(s string) string {
return fmt.Sprintf("%s", strings.ToUpper(strings.Replace(s, "-", "_", -1)))
return strings.ToUpper(strings.Replace(s, "-", "_", -1))
}

// this is just the first run at doing this, once the service template generator is introduced, this will need to be re-evaluated
Expand Down
5 changes: 5 additions & 0 deletions internal/templating/backups/template_schedule.go
Original file line number Diff line number Diff line change
Expand Up @@ -221,6 +221,11 @@ func GenerateBackupSchedule(
},
},
}
if lValues.PodSecurityContext.RunAsUser != 0 {
schedule.Spec.Backup.PodConfigRef = &corev1.LocalObjectReference{
Name: "k8up-rootless-workload-podconfig",
}
}
// add the default labels
schedule.ObjectMeta.Labels = map[string]string{
"app.kubernetes.io/name": "k8up-schedule",
Expand Down
28 changes: 28 additions & 0 deletions internal/templating/backups/test-resources/result-podconfig1.yaml
Original file line number Diff line number Diff line change
@@ -0,0 +1,28 @@
---
apiVersion: k8up.io/v1
kind: PodConfig
metadata:
annotations:
lagoon.sh/branch: environment
lagoon.sh/version: v2.x.x
creationTimestamp: null
labels:
app.kubernetes.io/instance: k8up-rootless-workload-podconfig
app.kubernetes.io/managed-by: build-deploy-tool
app.kubernetes.io/name: k8up-podconfig
lagoon.sh/buildType: branch
lagoon.sh/environment: environment
lagoon.sh/environmentType: production
lagoon.sh/project: example-project
lagoon.sh/service: k8up-rootless-workload-podconfig
lagoon.sh/service-type: k8up-podconfig
lagoon.sh/template: k8up-podconfig-0.1.0
name: k8up-rootless-workload-podconfig
spec:
template:
spec:
securityContext:
fsGroup: 10001
runAsGroup: 0
runAsUser: 10000
status: {}
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