/
instance_discovery.go
171 lines (152 loc) · 5.69 KB
/
instance_discovery.go
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
// SPDX-License-Identifier: MIT
// SPDX-FileCopyrightText: 2023 Steadybit GmbH
package extrds
import (
"context"
"github.com/aws/aws-sdk-go-v2/aws"
"github.com/aws/aws-sdk-go-v2/service/rds"
"github.com/aws/aws-sdk-go-v2/service/rds/types"
"github.com/steadybit/discovery-kit/go/discovery_kit_api"
"github.com/steadybit/extension-aws/utils"
extension_kit "github.com/steadybit/extension-kit"
"github.com/steadybit/extension-kit/exthttp"
"github.com/steadybit/extension-kit/extutil"
"net/http"
)
func RegisterRdsDiscoveryHandlers() {
exthttp.RegisterHttpHandler("/rds/instance/discovery", exthttp.GetterAsHandler(getRdsInstanceDiscoveryDescription))
exthttp.RegisterHttpHandler("/rds/instance/discovery/target-description", exthttp.GetterAsHandler(getRdsInstanceTargetDescription))
exthttp.RegisterHttpHandler("/rds/instance/discovery/attribute-descriptions", exthttp.GetterAsHandler(getRdsInstanceAttributeDescriptions))
exthttp.RegisterHttpHandler("/rds/instance/discovery/discovered-targets", getRdsInstanceDiscoveryResults)
}
func getRdsInstanceDiscoveryDescription() discovery_kit_api.DiscoveryDescription {
return discovery_kit_api.DiscoveryDescription{
Id: rdsTargetId,
RestrictTo: extutil.Ptr(discovery_kit_api.AWS),
Discover: discovery_kit_api.DescribingEndpointReferenceWithCallInterval{
Method: "GET",
Path: "/rds/instance/discovery/discovered-targets",
CallInterval: extutil.Ptr("30s"),
},
}
}
func getRdsInstanceTargetDescription() discovery_kit_api.TargetDescription {
return discovery_kit_api.TargetDescription{
Id: rdsTargetId,
Label: discovery_kit_api.PluralLabel{One: "RDS instance", Other: "RDS instances"},
Category: extutil.Ptr("cloud"),
Version: "1.1.0",
Icon: extutil.Ptr(rdsIcon),
Table: discovery_kit_api.Table{
Columns: []discovery_kit_api.Column{
{Attribute: "steadybit.label"},
{Attribute: "aws.rds.cluster"},
{Attribute: "aws.rds.instance.status"},
{Attribute: "aws.zone"},
{Attribute: "aws.account"},
},
OrderBy: []discovery_kit_api.OrderBy{
{
Attribute: "steadybit.label",
Direction: "ASC",
},
},
},
}
}
func getRdsInstanceAttributeDescriptions() discovery_kit_api.AttributeDescriptions {
return discovery_kit_api.AttributeDescriptions{
Attributes: []discovery_kit_api.AttributeDescription{
{
Attribute: "aws.rds.engine",
Label: discovery_kit_api.PluralLabel{
One: "AWS RDS database engine",
Other: "AWS RDS database engines",
},
}, {
Attribute: "aws.rds.cluster",
Label: discovery_kit_api.PluralLabel{
One: "AWS RDS cluster",
Other: "AWS RDS clusters",
},
}, {
Attribute: "aws.rds.instance.id",
Label: discovery_kit_api.PluralLabel{
One: "AWS RDS instance ID",
Other: "AWS RDS instance IDs",
},
}, {
// See https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/accessing-monitoring.html#Overview.DBInstance.Status
Attribute: "aws.rds.instance.status",
Label: discovery_kit_api.PluralLabel{
One: "AWS RDS instance status",
Other: "AWS RDS instance status",
},
},
},
}
}
func getRdsInstanceDiscoveryResults(w http.ResponseWriter, r *http.Request, _ []byte) {
targets, err := utils.ForEveryAccount(utils.Accounts, getTargetsForAccount, mergeTargets, make([]discovery_kit_api.Target, 0, 100), r.Context())
if err != nil {
exthttp.WriteError(w, extension_kit.ToError("Failed to collect RDS instance information", err))
} else {
exthttp.WriteBody(w, discovery_kit_api.DiscoveredTargets{Targets: targets})
}
}
func getTargetsForAccount(account *utils.AwsAccount, ctx context.Context) (*[]discovery_kit_api.Target, error) {
client := rds.NewFromConfig(account.AwsConfig)
targets, err := GetAllRdsInstances(ctx, client, account.AccountNumber)
if err != nil {
return nil, err
}
return &targets, nil
}
func mergeTargets(merged []discovery_kit_api.Target, eachResult []discovery_kit_api.Target) ([]discovery_kit_api.Target, error) {
return append(merged, eachResult...), nil
}
type RdsDescribeInstancesApi interface {
DescribeDBInstances(ctx context.Context, params *rds.DescribeDBInstancesInput, optFns ...func(*rds.Options)) (*rds.DescribeDBInstancesOutput, error)
}
func GetAllRdsInstances(ctx context.Context, rdsApi RdsDescribeInstancesApi, awsAccountNumber string) ([]discovery_kit_api.Target, error) {
result := make([]discovery_kit_api.Target, 0, 20)
var marker *string = nil
for {
output, err := rdsApi.DescribeDBInstances(ctx, &rds.DescribeDBInstancesInput{
Marker: marker,
})
if err != nil {
return result, err
}
for _, dbInstance := range output.DBInstances {
result = append(result, toTarget(dbInstance, awsAccountNumber))
}
if output.Marker == nil {
break
} else {
marker = output.Marker
}
}
return result, nil
}
func toTarget(dbInstance types.DBInstance, awsAccountNumber string) discovery_kit_api.Target {
arn := aws.ToString(dbInstance.DBInstanceArn)
label := aws.ToString(dbInstance.DBInstanceIdentifier)
attributes := make(map[string][]string)
attributes["steadybit.label"] = []string{label}
attributes["aws.account"] = []string{awsAccountNumber}
attributes["aws.arn"] = []string{arn}
attributes["aws.zone"] = []string{aws.ToString(dbInstance.AvailabilityZone)}
attributes["aws.rds.engine"] = []string{aws.ToString(dbInstance.Engine)}
attributes["aws.rds.instance.id"] = []string{label}
attributes["aws.rds.instance.status"] = []string{aws.ToString(dbInstance.DBInstanceStatus)}
if dbInstance.DBClusterIdentifier != nil {
attributes["aws.rds.cluster"] = []string{aws.ToString(dbInstance.DBClusterIdentifier)}
}
return discovery_kit_api.Target{
Id: arn,
Label: label,
TargetType: rdsTargetId,
Attributes: attributes,
}
}