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author | 2019-01-18 00:10:54 +0000 | |
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committer | 2019-01-18 00:10:54 +0000 | |
commit | 002602dc6b09d4012fbca05740eb4e4dbb9ce6ce (patch) | |
tree | aaba4c9c5c22ffc6e9bc87b64081168540da4e10 /src/k8splugin/rb/profile.go | |
parent | e9ee50babb3bbfe7a6e774460a46782abefd5107 (diff) | |
parent | cd9644049545a47676e87ad279833ced1b0f9c1a (diff) |
Merge "Add resource bundle profile api"
Diffstat (limited to 'src/k8splugin/rb/profile.go')
-rw-r--r-- | src/k8splugin/rb/profile.go | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/src/k8splugin/rb/profile.go b/src/k8splugin/rb/profile.go new file mode 100644 index 00000000..bbd43fea --- /dev/null +++ b/src/k8splugin/rb/profile.go @@ -0,0 +1,185 @@ +/* + * Copyright 2018 Intel Corporation, Inc + * + * 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. + */ + +package rb + +import ( + "bytes" + "encoding/base64" + "k8splugin/db" + "log" + + uuid "github.com/hashicorp/go-uuid" + pkgerrors "github.com/pkg/errors" +) + +// Profile contains the parameters needed for resource bundle (rb) profiles +// It implements the interface for managing the profiles +type Profile struct { + UUID string `json:"uuid,omitempty"` + RBDID string `json:"rbdid"` + Name string `json:"name"` + Namespace string `json:"namespace"` + KubernetesVersion string `json:"kubernetesversion"` +} + +// ProfileManager is an interface exposes the resource bundle profile functionality +type ProfileManager interface { + Create(def Profile) (Profile, error) + List() ([]Profile, error) + Get(resID string) (Profile, error) + Help() map[string]string + Delete(resID string) error + Upload(resID string, inp []byte) error +} + +// ProfileClient implements the ProfileManager +// It will also be used to maintain some localized state +type ProfileClient struct { + storeName string + tagMeta, tagContent string +} + +// NewProfileClient returns an instance of the ProfileClient +// which implements the ProfileManager +// Uses rb/def prefix +func NewProfileClient() *ProfileClient { + return &ProfileClient{ + storeName: "rbprofile", + tagMeta: "metadata", + tagContent: "content", + } +} + +// Help returns some information on how to create the content +// for the profile in the form of html formatted page +func (v *ProfileClient) Help() map[string]string { + ret := make(map[string]string) + + return ret +} + +// Create an entry for the resource bundle profile in the database +func (v *ProfileClient) Create(p Profile) (Profile, error) { + + //Check if provided RBID is a valid resource bundle + _, err := NewDefinitionClient().Get(p.RBDID) + if err != nil { + return Profile{}, pkgerrors.Errorf("Invalid Resource Bundle ID provided: %s", err.Error()) + } + + // Name is required + if p.Name == "" { + return Profile{}, pkgerrors.New("Name is required for Resource Bundle Profile") + } + + // If UUID is empty, we will generate one + if p.UUID == "" { + p.UUID, _ = uuid.GenerateUUID() + } + key := p.UUID + + err = db.DBconn.Create(v.storeName, key, v.tagMeta, p) + if err != nil { + return Profile{}, pkgerrors.Wrap(err, "Creating Profile DB Entry") + } + + return p, nil +} + +// List all resource entries in the database +func (v *ProfileClient) List() ([]Profile, error) { + res, err := db.DBconn.ReadAll(v.storeName, v.tagMeta) + if err != nil || len(res) == 0 { + return []Profile{}, pkgerrors.Wrap(err, "Listing Resource Bundle Profiles") + } + + var retData []Profile + + for key, value := range res { + //value is a byte array + if len(value) > 0 { + pr := Profile{} + err = db.DBconn.Unmarshal(value, &pr) + if err != nil { + log.Printf("[Profile] Error Unmarshaling value for: %s", key) + continue + } + retData = append(retData, pr) + } + } + + return retData, nil +} + +// Get returns the Resource Bundle Profile for corresponding ID +func (v *ProfileClient) Get(id string) (Profile, error) { + value, err := db.DBconn.Read(v.storeName, id, v.tagMeta) + if err != nil { + return Profile{}, pkgerrors.Wrap(err, "Get Resource Bundle Profile") + } + + //value is a byte array + if value != nil { + pr := Profile{} + err = db.DBconn.Unmarshal(value, &pr) + if err != nil { + return Profile{}, pkgerrors.Wrap(err, "Unmarshaling Profile Value") + } + return pr, nil + } + + return Profile{}, pkgerrors.New("Error getting Resource Bundle Profile") +} + +// Delete the Resource Bundle Profile from database +func (v *ProfileClient) Delete(id string) error { + err := db.DBconn.Delete(v.storeName, id, v.tagMeta) + if err != nil { + return pkgerrors.Wrap(err, "Delete Resource Bundle Profile") + } + + err = db.DBconn.Delete(v.storeName, id, v.tagContent) + if err != nil { + return pkgerrors.Wrap(err, "Delete Resource Bundle Profile Content") + } + + return nil +} + +// Upload the contents of resource bundle into database +func (v *ProfileClient) Upload(id string, inp []byte) error { + + //ignore the returned data here. + _, err := v.Get(id) + if err != nil { + return pkgerrors.Errorf("Invalid Profile ID provided %s", err.Error()) + } + + err = isTarGz(bytes.NewBuffer(inp)) + if err != nil { + return pkgerrors.Errorf("Error in file format %s", err.Error()) + } + + //Encode given byte stream to text for storage + encodedStr := base64.StdEncoding.EncodeToString(inp) + err = db.DBconn.Create(v.storeName, id, v.tagContent, encodedStr) + if err != nil { + return pkgerrors.Errorf("Error uploading data to db %s", err.Error()) + } + + return nil +} |