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Add Redis Generator for SecretProviderClass (#168)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,162 @@ | ||
| /* | ||
| Copyright AppsCode Inc. and Contributors | ||
| Licensed under the AppsCode Community License 1.0.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| https://github.com/appscode/licenses/raw/1.0.0/AppsCode-Community-1.0.0.md | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package redis | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "strings" | ||
|
|
||
| engineapi "kubevault.dev/apimachinery/apis/engine/v1alpha1" | ||
| vaultapi "kubevault.dev/apimachinery/apis/kubevault/v1alpha2" | ||
| enginecs "kubevault.dev/apimachinery/client/clientset/versioned/typed/engine/v1alpha1" | ||
| vaultcs "kubevault.dev/apimachinery/client/clientset/versioned/typed/kubevault/v1alpha2" | ||
| policycs "kubevault.dev/apimachinery/client/clientset/versioned/typed/policy/v1alpha1" | ||
| "kubevault.dev/cli/pkg/generate/api" | ||
|
|
||
| "github.com/go-errors/errors" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/client-go/kubernetes" | ||
| "sigs.k8s.io/yaml" | ||
| ) | ||
|
|
||
| var available = map[string]bool{ | ||
| "username": true, | ||
| "password": true, | ||
| } | ||
|
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| type SecretObject struct { | ||
| ObjectName string `json:"objectName,omitempty"` | ||
| SecretPath string `json:"secretPath,omitempty"` | ||
| SecretKey string `json:"secretKey,omitempty"` | ||
| Method string `json:"method,omitempty"` | ||
| SecretArgs map[string]interface{} `json:"secretArgs,omitempty"` | ||
| } | ||
|
|
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| type RedisGenerator struct { | ||
| role []string | ||
| srb *engineapi.SecretRoleBinding | ||
| se *engineapi.SecretEngine | ||
| keys map[string]string | ||
| engineClient *enginecs.EngineV1alpha1Client | ||
| vaultClient *vaultcs.KubevaultV1alpha2Client | ||
| policyClient *policycs.PolicyV1alpha1Client | ||
| clusterName string | ||
| } | ||
|
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| var _ api.GeneratorInterface = &RedisGenerator{} | ||
|
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| func NewRedisGenerator(role []string, srb *engineapi.SecretRoleBinding, keys map[string]string, engineClient *enginecs.EngineV1alpha1Client, vaultClient *vaultcs.KubevaultV1alpha2Client, policyClient *policycs.PolicyV1alpha1Client, kubeClient *kubernetes.Clientset) (*RedisGenerator, error) { | ||
| redisRole, err := engineClient.RedisRoles(srb.Namespace).Get(context.TODO(), role[1], metav1.GetOptions{}) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| se, err := engineClient.SecretEngines(srb.Namespace).Get(context.TODO(), redisRole.Spec.SecretEngineRef.Name, metav1.GetOptions{}) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| sts, err := kubeClient.AppsV1().StatefulSets(se.Spec.VaultRef.Namespace).Get(context.TODO(), se.Spec.VaultRef.Name, metav1.GetOptions{}) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| var clName string | ||
| for _, cont := range sts.Spec.Template.Spec.Containers { | ||
| if cont.Name != vaultapi.VaultUnsealerContainerName { | ||
| continue | ||
| } | ||
| for _, arg := range cont.Args { | ||
| if strings.HasPrefix(arg, "--cluster-name=") { | ||
| clName = arg[1+strings.Index(arg, "="):] | ||
| } | ||
| } | ||
| } | ||
|
|
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| return &RedisGenerator{ | ||
| role: role, | ||
| srb: srb, | ||
| se: se, | ||
| keys: keys, | ||
| engineClient: engineClient, | ||
| vaultClient: vaultClient, | ||
| policyClient: policyClient, | ||
| clusterName: clName, | ||
| }, nil | ||
| } | ||
|
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| func (g *RedisGenerator) Generate() (string, error) { | ||
| redisRole, err := g.engineClient.RedisRoles(g.srb.Namespace).Get(context.TODO(), g.role[1], metav1.GetOptions{}) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
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| for key := range g.keys { | ||
| if _, ok := available[key]; !ok { | ||
| var klist []string | ||
| for k := range available { | ||
| klist = append(klist, k) | ||
| } | ||
| return "", errors.Errorf("key %s not available for roleKind %s\navailable keys are: %s", key, g.role[0], strings.Join(klist, ", ")) | ||
| } | ||
| } | ||
|
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| var object []SecretObject | ||
| for key, mapping := range g.keys { | ||
| doc := g.GetSecretObject(key, mapping, redisRole) | ||
| object = append(object, *doc) | ||
| } | ||
|
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| data, err := yaml.Marshal(object) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
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| return string(data), nil | ||
| } | ||
|
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| func (g *RedisGenerator) GetVaultServerURL() (string, error) { | ||
| vs, err := g.vaultClient.VaultServers(g.se.Spec.VaultRef.Namespace).Get(context.TODO(), g.se.Spec.VaultRef.Name, metav1.GetOptions{}) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
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| address := fmt.Sprintf("%s://%s.%s:8200", vs.Scheme(), vs.Name, vs.Namespace) | ||
| return address, nil | ||
| } | ||
|
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| func (g *RedisGenerator) GetVaultRoleName() (string, error) { | ||
| vpb, err := g.policyClient.VaultPolicyBindings(g.se.Spec.VaultRef.Namespace).Get(context.TODO(), g.srb.VaultPolicyBindingName(), metav1.GetOptions{}) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
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| return vpb.Spec.VaultRoleName, nil | ||
| } | ||
|
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| func (g *RedisGenerator) GetSecretObject(key, mapping string, redisRole *engineapi.RedisRole) *SecretObject { | ||
| sePath := fmt.Sprintf("k8s.%s.%s.%s.%s", g.clusterName, g.se.GetSecretEngineType(), g.se.Namespace, g.se.Name) | ||
| roleName := fmt.Sprintf("k8s.%s.%s.%s", g.clusterName, redisRole.Namespace, redisRole.Name) | ||
| path := fmt.Sprintf("/%s/creds/%s", sePath, roleName) | ||
|
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||
| return &SecretObject{ | ||
| ObjectName: mapping, | ||
| SecretPath: path, | ||
| SecretKey: key, | ||
| } | ||
| } |
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