aboutsummaryrefslogtreecommitdiffstats
path: root/src/ncm/pkg/scheduler/scheduler.go
blob: 29d6766213839158e327571d91237da4030b21a7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
/*
 * Copyright 2020 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 scheduler

import (
	"context"
	"encoding/json"
	"time"

	clusterPkg "github.com/onap/multicloud-k8s/src/clm/pkg/cluster"
	"github.com/onap/multicloud-k8s/src/ncm/internal/grpc"
	oc "github.com/onap/multicloud-k8s/src/ncm/internal/ovncontroller"
	ncmtypes "github.com/onap/multicloud-k8s/src/ncm/pkg/module/types"
	nettypes "github.com/onap/multicloud-k8s/src/ncm/pkg/networkintents/types"
	appcontext "github.com/onap/multicloud-k8s/src/orchestrator/pkg/appcontext"
	"github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/db"
	log "github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/logutils"
	"github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/rpc"
	installpb "github.com/onap/multicloud-k8s/src/rsync/pkg/grpc/installapp"

	pkgerrors "github.com/pkg/errors"
)

// ClusterManager is an interface exposes the Cluster functionality
type SchedulerManager interface {
	ApplyNetworkIntents(clusterProvider, cluster string) error
	TerminateNetworkIntents(clusterProvider, cluster string) error
}

// ClusterClient implements the Manager
// It will also be used to maintain some localized state
type SchedulerClient struct {
	db ncmtypes.ClientDbInfo
}

// NewSchedulerClient returns an instance of the SchedulerClient
// which implements the Manager
func NewSchedulerClient() *SchedulerClient {
	return &SchedulerClient{
		db: ncmtypes.ClientDbInfo{
			StoreName:  "cluster",
			TagMeta:    "clustermetadata",
			TagContent: "clustercontent",
			TagContext: "clustercontext",
		},
	}
}

// Apply Network Intents associated with a cluster
func (v *SchedulerClient) ApplyNetworkIntents(clusterProvider, cluster string) error {

	_, err := clusterPkg.NewClusterClient().GetClusterContext(clusterProvider, cluster)
	if err == nil {
		return pkgerrors.Errorf("Cluster network intents have already been applied: %v, %v", clusterProvider, cluster)
	}

	// Make an app context for the network intent resources
	ac := appcontext.AppContext{}
	ctxVal, err := ac.InitAppContext()
	if err != nil {
		return pkgerrors.Wrap(err, "Error creating AppContext")
	}
	handle, err := ac.CreateCompositeApp()
	if err != nil {
		return pkgerrors.Wrap(err, "Error creating AppContext CompositeApp")
	}

	// Add an app (fixed value) to the app context
	apphandle, err := ac.AddApp(handle, nettypes.CONTEXT_CLUSTER_APP)
	if err != nil {
		cleanuperr := ac.DeleteCompositeApp()
		if cleanuperr != nil {
			log.Warn("Error cleaning AppContext CompositeApp create failure", log.Fields{
				"cluster-provider": clusterProvider,
				"cluster":          cluster,
			})
		}
		return pkgerrors.Wrap(err, "Error adding App to AppContext")
	}

	// Add an app order instruction
	appinstr := struct {
		Apporder []string `json:"apporder"`
	}{
		[]string{nettypes.CONTEXT_CLUSTER_APP},
	}
	jinstr, _ := json.Marshal(appinstr)

	appdepinstr := struct {
		Appdep map[string]string `json:"appdependency"`
	}{
		map[string]string{nettypes.CONTEXT_CLUSTER_APP: "go"},
	}
	jdep, _ := json.Marshal(appdepinstr)

	_, err = ac.AddInstruction(handle, "app", "order", string(jinstr))
	_, err = ac.AddInstruction(handle, "app", "dependency", string(jdep))

	// Add a cluster to the app
	_, err = ac.AddCluster(apphandle, clusterProvider+nettypes.SEPARATOR+cluster)
	if err != nil {
		cleanuperr := ac.DeleteCompositeApp()
		if cleanuperr != nil {
			log.Warn("Error cleaning AppContext after add cluster failure", log.Fields{
				"cluster-provider": clusterProvider,
				"cluster":          cluster,
			})
		}
		return pkgerrors.Wrap(err, "Error adding Cluster to AppContext")
	}

	// Pass the context to the appropriate controller (just default ovncontroller now)
	// for internal controller - pass the appcontext, cluster provider and cluster names in directly
	// external controllers will be given the appcontext id and wiil have to recontstruct
	// their own context
	err = oc.Apply(ctxVal, clusterProvider, cluster)
	if err != nil {
		cleanuperr := ac.DeleteCompositeApp()
		if cleanuperr != nil {
			log.Warn("Error cleaning AppContext after controller failure", log.Fields{
				"cluster-provider": clusterProvider,
				"cluster":          cluster,
			})
		}
		return pkgerrors.Wrap(err, "Error adding Cluster to AppContext")
	}

	// save the context in the cluster db record
	key := clusterPkg.ClusterKey{
		ClusterProviderName: clusterProvider,
		ClusterName:         cluster,
	}
	err = db.DBconn.Insert(v.db.StoreName, key, nil, v.db.TagContext, ctxVal)
	if err != nil {
		cleanuperr := ac.DeleteCompositeApp()
		if cleanuperr != nil {
			log.Warn("Error cleaning AppContext after DB insert failure", log.Fields{
				"cluster-provider": clusterProvider,
				"cluster":          cluster,
			})
		}
		return pkgerrors.Wrap(err, "Error adding AppContext to DB")
	}

	// call resource synchronizer to instantiate the CRs in the cluster
	conn := rpc.GetRpcConn(grpc.RsyncName)
	if conn == nil {
		grpc.InitRsyncClient()
		conn = rpc.GetRpcConn(grpc.RsyncName)
	}

	var rpcClient installpb.InstallappClient
	var installRes *installpb.InstallAppResponse
	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
	defer cancel()

	if conn != nil {
		rpcClient = installpb.NewInstallappClient(conn)
		installReq := new(installpb.InstallAppRequest)
		installReq.AppContext = ctxVal.(string)
		installRes, err = rpcClient.InstallApp(ctx, installReq)
		if err == nil {
			log.Info("Response from InstappApp GRPC call", log.Fields{
				"Succeeded": installRes.AppContextInstalled,
				"Message":   installRes.AppContextInstallMessage,
			})
		}
	} else {
		return pkgerrors.Errorf("InstallApp Failed - Could not get InstallAppClient: %v", grpc.RsyncName)
	}

	return nil
}

// Terminate Network Intents associated with a cluster
func (v *SchedulerClient) TerminateNetworkIntents(clusterProvider, cluster string) error {
	context, err := clusterPkg.NewClusterClient().GetClusterContext(clusterProvider, cluster)
	if err != nil {
		return pkgerrors.Wrapf(err, "Error finding AppContext for cluster: %v, %v", clusterProvider, cluster)
	}

	// TODO: call resource synchronizer to terminate the CRs in the cluster

	// remove the app context
	cleanuperr := context.DeleteCompositeApp()
	if cleanuperr != nil {
		log.Warn("Error deleted AppContext", log.Fields{
			"cluster-provider": clusterProvider,
			"cluster":          cluster,
		})
	}

	// remove the app context field from the cluster db record
	key := clusterPkg.ClusterKey{
		ClusterProviderName: clusterProvider,
		ClusterName:         cluster,
	}
	err = db.DBconn.RemoveTag(v.db.StoreName, key, v.db.TagContext)
	if err != nil {
		log.Warn("Error removing AppContext from Cluster document", log.Fields{
			"cluster-provider": clusterProvider,
			"cluster":          cluster,
		})
	}
	return nil
}