-
Notifications
You must be signed in to change notification settings - Fork 0
/
manager.go
185 lines (170 loc) · 5.15 KB
/
manager.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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
// Copyright 2018 The Dimios Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package manager
import (
"context"
"fmt"
"net/http"
"time"
"os"
"github.com/bborbe/io/util"
"github.com/seibert-media/dimios/hook"
"github.com/seibert-media/dimios/whitelist"
"github.com/bborbe/http/client_builder"
"github.com/bborbe/teamvault-utils/connector"
"github.com/bborbe/teamvault-utils/model"
"github.com/bborbe/teamvault-utils/parser"
"github.com/golang/glog"
"github.com/pkg/errors"
"github.com/seibert-media/dimios/apply"
"github.com/seibert-media/dimios/change"
"github.com/seibert-media/dimios/finder"
"github.com/seibert-media/dimios/k8s"
file_provider "github.com/seibert-media/dimios/k8s/file"
remote_provider "github.com/seibert-media/dimios/k8s/remote"
k8s_discovery "k8s.io/client-go/discovery"
k8s_dynamic "k8s.io/client-go/dynamic"
k8s_rest "k8s.io/client-go/rest"
k8s_clientcmd "k8s.io/client-go/tools/clientcmd"
// Required for using GCP auth
_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
)
// Manager is the main application package
type Manager struct {
Staging bool
TemplateDirectory string
TeamvaultURL string
TeamvaultUser string
TeamvaultPassword string
TeamvaultConfigPath string
Namespaces string
Whitelist string
Kubeconfig string
Webhook bool
Port int
}
// ReadTeamvaultConfig from path
func (m *Manager) ReadTeamvaultConfig() error {
teamvaultConfigPath := model.TeamvaultConfigPath(m.TeamvaultConfigPath)
if teamvaultConfigPath.Exists() {
teamvaultConfig, err := teamvaultConfigPath.Parse()
if err != nil {
glog.V(2).Infof("parse teamvault config failed: %v", err)
return err
}
m.TeamvaultURL = teamvaultConfig.Url.String()
m.TeamvaultUser = teamvaultConfig.User.String()
m.TeamvaultPassword = teamvaultConfig.Password.String()
}
return nil
}
// Validate if all Manager values are set correctly
func (m *Manager) Validate() error {
if len(m.TemplateDirectory) == 0 {
return fmt.Errorf("template directory missing")
}
if len(m.Namespaces) == 0 {
return fmt.Errorf("namespace missing")
}
if len(m.Kubeconfig) == 0 && os.Getenv("KUBERNETES_SERVICE_HOST") == "" && os.Getenv("KUBERNETES_SERVICE_PORT") == "" {
return fmt.Errorf("kubeconfig missing")
}
if len(m.TeamvaultURL) == 0 && !m.Staging {
return fmt.Errorf("teamvault url missing")
}
if len(m.TeamvaultUser) == 0 && !m.Staging {
return fmt.Errorf("teamvault user missing")
}
if len(m.TeamvaultPassword) == 0 && !m.Staging {
return fmt.Errorf("teamvault password missing")
}
return nil
}
// Run Manager
func (m *Manager) Run(ctx context.Context) error {
glog.V(0).Info("dimios started")
discovery, dynamicPool, err := m.createClients()
if err != nil {
return err
}
fileProvider := file_provider.New(
file_provider.TemplateDirectory(m.TemplateDirectory),
m.createTeamvaultConfigParser(),
)
remoteProvider := remote_provider.New(
discovery,
dynamicPool,
)
applier := apply.New(
m.Staging,
discovery,
dynamicPool,
)
getter := finder.New(
fileProvider,
remoteProvider,
k8s.NamespacesFromCommaSeperatedList(m.Namespaces),
whitelist.ByString(m.Whitelist),
)
syncer := &change.Syncer{
Applier: applier,
Getter: getter,
}
if m.Webhook {
server := &http.Server{
Addr: fmt.Sprintf(":%d", m.Port),
Handler: hook.NewHandler(syncer),
}
glog.V(1).Infof("start webserver on port %d", m.Port)
return server.ListenAndServe()
}
glog.V(1).Infof("run sync")
if err := syncer.Run(ctx); err != nil {
glog.V(0).Infof("dimios failed: %v", err)
return err
}
glog.V(0).Info("dimios completed successful")
return nil
}
func createConfig(kubeconfig string) (*k8s_rest.Config, error) {
if len(kubeconfig) > 0 {
glog.V(4).Infof("create kube config from flags")
kubeconfig, err := util.NormalizePath(kubeconfig)
if err != nil {
return nil, errors.Wrap(err, "normalize path failed")
}
return k8s_clientcmd.BuildConfigFromFlags("", kubeconfig)
}
glog.V(4).Infof("create in cluster kube config")
return k8s_rest.InClusterConfig()
}
func (m *Manager) createClients() (*k8s_discovery.DiscoveryClient, k8s_dynamic.ClientPool, error) {
cfg, err := createConfig(m.Kubeconfig)
if err != nil {
return nil, nil, errors.Wrap(err, "create clientConfig failed")
}
discovery, err := k8s_discovery.NewDiscoveryClientForConfig(cfg)
if err != nil {
return nil, nil, errors.Wrap(err, "creating k8s_discovery client failed")
}
dynamicPool := k8s_dynamic.NewDynamicClientPool(cfg)
return discovery, dynamicPool, nil
}
func (m *Manager) createTeamvaultConfigParser() parser.Parser {
return parser.New(m.createTeamvaultConnector())
}
func (m *Manager) createTeamvaultConnector() connector.Connector {
var teamvaultConnector connector.Connector
if m.Staging {
teamvaultConnector = connector.NewDummy()
}
httpClient := client_builder.New().WithTimeout(5 * time.Second).Build()
teamvaultConnector = connector.New(
httpClient.Do,
model.TeamvaultUrl(m.TeamvaultURL),
model.TeamvaultUser(m.TeamvaultUser),
model.TeamvaultPassword(m.TeamvaultPassword),
)
return teamvaultConnector
}