forked from kloeckner-i/db-operator
/
proxy_helper.go
146 lines (128 loc) · 4.32 KB
/
proxy_helper.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
/*
* Copyright 2021 kloeckner.i GmbH
* Copyright 2018 The Operator-SDK 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.
*/
package controllers
import (
"errors"
"os"
"strconv"
"strings"
kindav1beta1 "github.com/db-operator/db-operator/api/v1beta1"
"github.com/db-operator/db-operator/pkg/config"
"github.com/db-operator/db-operator/pkg/utils/kci"
proxy "github.com/db-operator/db-operator/pkg/utils/proxy"
"github.com/sirupsen/logrus"
)
var (
// ErrNoNamespace indicates that a namespace could not be found for the current
// environment
ErrNoNamespace = errors.New("namespace not found for current environment")
// ErrNoProxySupport is thrown when proxy creation is not supported
ErrNoProxySupport = errors.New("no proxy supported backend type")
)
func determineProxyTypeForDB(conf *config.Config, dbcr *kindav1beta1.Database, instance *kindav1beta1.DbInstance) (proxy.Proxy, error) {
logrus.Debugf("DB: namespace=%s, name=%s - determinProxyType", dbcr.Namespace, dbcr.Name)
backend, err := instance.GetBackendType()
if err != nil {
logrus.Errorf("could not get backend type %s - %s", dbcr.Name, err)
return nil, err
}
portString := instance.Status.Info["DB_PORT"]
port, err := strconv.Atoi(portString)
if err != nil {
logrus.Errorf("can not convert DB_PORT to int - %s", err)
return nil, err
}
switch backend {
case "google":
labels := map[string]string{
"app": "cloudproxy",
"db-name": dbcr.Name,
}
monitoringEnabled := instance.IsMonitoringEnabled()
proxy := &proxy.CloudProxy{
NamePrefix: "db-" + dbcr.Name,
Namespace: dbcr.Namespace,
InstanceConnectionName: instance.Status.Info["DB_CONN"],
AccessSecretName: dbcr.InstanceAccessSecretName(),
Engine: dbcr.Status.Engine,
Port: int32(port),
Labels: kci.LabelBuilder(labels),
Conf: conf,
MonitoringEnabled: monitoringEnabled,
}
return proxy, nil
default:
err := errors.New("not supported backend type")
return nil, err
}
}
func determineProxyTypeForInstance(conf *config.Config, dbin *kindav1beta1.DbInstance) (proxy.Proxy, error) {
logrus.Debugf("Instance: name=%s - determinProxyType", dbin.Name)
operatorNamespace, err := getOperatorNamespace()
if err != nil {
// can not get operator namespace
return nil, err
}
backend, err := dbin.GetBackendType()
if err != nil {
return nil, err
}
switch backend {
case "google":
portString := dbin.Status.Info["DB_PORT"]
port, err := strconv.Atoi(portString)
if err != nil {
logrus.Errorf("can not convert DB_PORT to int - %s", err)
return nil, err
}
labels := map[string]string{
"app": "cloudproxy",
"instance-name": dbin.Name,
}
monitoringEnabled := dbin.IsMonitoringEnabled()
var accessSecretName string
if dbin.Spec.Google.ClientSecret.Name != "" {
accessSecretName = dbin.Spec.Google.ClientSecret.Name
} else {
accessSecretName = conf.Instances.Google.ClientSecretName
}
return &proxy.CloudProxy{
NamePrefix: "dbinstance-" + dbin.Name,
Namespace: operatorNamespace,
InstanceConnectionName: dbin.Status.Info["DB_CONN"],
AccessSecretName: accessSecretName,
Engine: dbin.Spec.Engine,
Port: int32(port),
Labels: kci.LabelBuilder(labels),
Conf: conf,
MonitoringEnabled: monitoringEnabled,
}, nil
default:
return nil, ErrNoProxySupport
}
}
// getOperatorNamespace returns the namespace the operator should be running in.
func getOperatorNamespace() (string, error) {
nsBytes, err := os.ReadFile("/var/run/secrets/kubernetes.io/serviceaccount/namespace")
if err != nil {
if os.IsNotExist(err) {
return "", ErrNoNamespace
}
return "", err
}
return strings.TrimSpace(string(nsBytes)), nil
}