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* Add/Update restic func for stats * Add get_backups func * Update output for getBackups * Add test for snapshotIDs parsing * Add more info to BackupInfo * Change file name * Fix merge conflicts * Update func name: * Update file name * Update error check * Add tests for backupsInfo * Address review comments * Address review comments * Update switch case * Address review comments * Address review comments * Update test * Fix tests * Address review comments * Update tests * Update stats parsing * Update test to avoid locking old repo
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,161 @@ | ||
| // Copyright 2019 The Kanister Authors. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // 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. | ||
|
|
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| package function | ||
|
|
||
| import ( | ||
| "context" | ||
| "strings" | ||
|
|
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| "github.com/pkg/errors" | ||
| v1 "k8s.io/api/core/v1" | ||
| sp "k8s.io/apimachinery/pkg/util/strategicpatch" | ||
| "k8s.io/client-go/kubernetes" | ||
|
|
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| kanister "github.com/kanisterio/kanister/pkg" | ||
| "github.com/kanisterio/kanister/pkg/format" | ||
| "github.com/kanisterio/kanister/pkg/kube" | ||
| "github.com/kanisterio/kanister/pkg/param" | ||
| "github.com/kanisterio/kanister/pkg/restic" | ||
| ) | ||
|
|
||
| const ( | ||
| // DescribeBackupsArtifactPrefixArg provides the path to restore backed up data | ||
| DescribeBackupsArtifactPrefixArg = "backupArtifactPrefix" | ||
| // DescribeBackupsEncryptionKeyArg provides the encryption key to be used for deletes | ||
| DescribeBackupsEncryptionKeyArg = "encryptionKey" | ||
| // DescribeBackupsPodOverrideArg contains pod specs to override default pod specs | ||
| DescribeBackupsPodOverrideArg = "podOverride" | ||
| DescribeBackupsJobPrefix = "describe-backups-" | ||
| DescribeBackupsFileCount = "fileCount" | ||
| DescribeBackupsSize = "size" | ||
| DescribeBackupsSnapshotIDs = "snapshotIDs" | ||
| DescribeBackupsPasswordIncorrect = "passwordIncorrect" | ||
| DescribeBackupsRepoDoesNotExist = "repoUnavailable" | ||
| rawDataStatsMode = "raw-data" | ||
| ) | ||
|
|
||
| func init() { | ||
| kanister.Register(&DescribeBackupsFunc{}) | ||
| } | ||
|
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| var _ kanister.Func = (*DescribeBackupsFunc)(nil) | ||
|
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| type DescribeBackupsFunc struct{} | ||
|
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| func (*DescribeBackupsFunc) Name() string { | ||
| return "DescribeBackups" | ||
| } | ||
|
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| func describeBackups(ctx context.Context, cli kubernetes.Interface, tp param.TemplateParams, encryptionKey, targetPaths, jobPrefix string, podOverride sp.JSONMap) (map[string]interface{}, error) { | ||
| namespace, err := kube.GetControllerNamespace() | ||
| if err != nil { | ||
| return nil, errors.Wrapf(err, "Failed to get controller namespace") | ||
| } | ||
| options := &kube.PodOptions{ | ||
| Namespace: namespace, | ||
| GenerateName: jobPrefix, | ||
| Image: kanisterToolsImage, | ||
| Command: []string{"sh", "-c", "tail -f /dev/null"}, | ||
| PodOverride: podOverride, | ||
| } | ||
| pr := kube.NewPodRunner(cli, options) | ||
| podFunc := describeBackupsPodFunc(cli, tp, namespace, encryptionKey, targetPaths) | ||
| return pr.Run(ctx, podFunc) | ||
| } | ||
|
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| func describeBackupsPodFunc(cli kubernetes.Interface, tp param.TemplateParams, namespace, encryptionKey, targetPath string) func(ctx context.Context, pod *v1.Pod) (map[string]interface{}, error) { | ||
| return func(ctx context.Context, pod *v1.Pod) (map[string]interface{}, error) { | ||
| // Wait for pod to reach running state | ||
| if err := kube.WaitForPodReady(ctx, cli, pod.Namespace, pod.Name); err != nil { | ||
| return nil, errors.Wrapf(err, "Failed while waiting for Pod %s to be ready", pod.Name) | ||
| } | ||
| pw, err := getPodWriter(cli, ctx, pod.Namespace, pod.Name, pod.Spec.Containers[0].Name, tp.Profile) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| defer cleanUpCredsFile(ctx, pw, pod.Namespace, pod.Name, pod.Spec.Containers[0].Name) | ||
| snapshotIDs, err := restic.GetSnapshotIDs(tp.Profile, cli, targetPath, encryptionKey, namespace, pod.Name, pod.Spec.Containers[0].Name) | ||
| switch { | ||
| case err == nil: | ||
| break | ||
| case strings.Contains(err.Error(), restic.PasswordIncorrect): | ||
| return map[string]interface{}{ | ||
| DescribeBackupsPasswordIncorrect: "true", | ||
| }, | ||
| nil | ||
|
|
||
| case strings.Contains(err.Error(), restic.RepoDoesNotExist): | ||
| return map[string]interface{}{ | ||
| DescribeBackupsRepoDoesNotExist: "true", | ||
| }, | ||
| nil | ||
| default: | ||
| return nil, err | ||
|
|
||
| } | ||
| cmd, err := restic.StatsCommandByID(tp.Profile, targetPath, "" /* get all snapshot stats */, rawDataStatsMode, encryptionKey) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| stdout, stderr, err := kube.Exec(cli, namespace, pod.Name, pod.Spec.Containers[0].Name, cmd, nil) | ||
| format.Log(pod.Name, pod.Spec.Containers[0].Name, stdout) | ||
| format.Log(pod.Name, pod.Spec.Containers[0].Name, stderr) | ||
| if err != nil { | ||
| return nil, errors.Wrapf(err, "Failed to get backup stats") | ||
| } | ||
| // Get File Count and Size from Stats | ||
| _, fc, size := restic.SnapshotStatsFromStatsLog(stdout) | ||
| if fc == "" || size == "" { | ||
| return nil, errors.New("Failed to parse snapshot stats from logs") | ||
| } | ||
| return map[string]interface{}{ | ||
| DescribeBackupsSnapshotIDs: snapshotIDs, | ||
| DescribeBackupsFileCount: fc, | ||
| DescribeBackupsSize: size, | ||
| DescribeBackupsPasswordIncorrect: "false", | ||
| DescribeBackupsRepoDoesNotExist: "false", | ||
| }, | ||
| nil | ||
| } | ||
| } | ||
|
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| func (*DescribeBackupsFunc) Exec(ctx context.Context, tp param.TemplateParams, args map[string]interface{}) (map[string]interface{}, error) { | ||
| var getDescribeBackupsArtifactPrefix, encryptionKey string | ||
| var err error | ||
| if err = Arg(args, DescribeBackupsArtifactPrefixArg, &getDescribeBackupsArtifactPrefix); err != nil { | ||
| return nil, err | ||
| } | ||
| if err = OptArg(args, DescribeBackupsEncryptionKeyArg, &encryptionKey, restic.GeneratePassword()); err != nil { | ||
| return nil, err | ||
| } | ||
| podOverride, err := GetPodSpecOverride(tp, args, DescribeBackupsPodOverrideArg) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| // Validate profile | ||
| if err = validateProfile(tp.Profile); err != nil { | ||
| return nil, err | ||
| } | ||
| cli, err := kube.NewClient() | ||
| if err != nil { | ||
| return nil, errors.Wrapf(err, "Failed to create Kubernetes client") | ||
| } | ||
| return describeBackups(ctx, cli, tp, encryptionKey, getDescribeBackupsArtifactPrefix, DescribeBackupsJobPrefix, podOverride) | ||
| } | ||
|
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| func (*DescribeBackupsFunc) RequiredArgs() []string { | ||
| return []string{DescribeBackupsArtifactPrefixArg} | ||
| } |
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