forked from quay/clair
-
Notifications
You must be signed in to change notification settings - Fork 0
/
main.go
161 lines (135 loc) · 4.56 KB
/
main.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
// Copyright 2017 clair 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 main
import (
"flag"
"math/rand"
"os"
"os/exec"
"os/signal"
"runtime/pprof"
"strings"
"syscall"
"time"
"github.com/coreos/pkg/capnslog"
"github.com/coreos/clair"
"github.com/coreos/clair/api"
"github.com/coreos/clair/database"
"github.com/coreos/clair/ext/imagefmt"
"github.com/coreos/clair/pkg/stopper"
// Register database driver.
_ "github.com/coreos/clair/database/pgsql"
// Register extensions.
_ "github.com/coreos/clair/ext/featurefmt/apk"
_ "github.com/coreos/clair/ext/featurefmt/dpkg"
_ "github.com/coreos/clair/ext/featurefmt/rpm"
_ "github.com/coreos/clair/ext/featurens/alpinerelease"
_ "github.com/coreos/clair/ext/featurens/aptsources"
_ "github.com/coreos/clair/ext/featurens/lsbrelease"
_ "github.com/coreos/clair/ext/featurens/osrelease"
_ "github.com/coreos/clair/ext/featurens/redhatrelease"
_ "github.com/coreos/clair/ext/imagefmt/aci"
_ "github.com/coreos/clair/ext/imagefmt/docker"
_ "github.com/coreos/clair/ext/notification/webhook"
_ "github.com/coreos/clair/ext/vulnmdsrc/nvd"
_ "github.com/coreos/clair/ext/vulnsrc/alpine"
_ "github.com/coreos/clair/ext/vulnsrc/debian"
_ "github.com/coreos/clair/ext/vulnsrc/oracle"
_ "github.com/coreos/clair/ext/vulnsrc/rhel"
_ "github.com/coreos/clair/ext/vulnsrc/ubuntu"
)
var log = capnslog.NewPackageLogger("github.com/coreos/clair/cmd/clair", "main")
func waitForSignals(signals ...os.Signal) {
interrupts := make(chan os.Signal, 1)
signal.Notify(interrupts, signals...)
<-interrupts
}
func startCPUProfiling(path string) *os.File {
f, err := os.Create(path)
if err != nil {
log.Fatalf("failed to create profile file: %s", err)
}
err = pprof.StartCPUProfile(f)
if err != nil {
log.Fatalf("failed to start CPU profiling: %s", err)
}
log.Info("started CPU profiling")
return f
}
func stopCPUProfiling(f *os.File) {
pprof.StopCPUProfile()
f.Close()
log.Info("stopped CPU profiling")
}
// Boot starts Clair instance with the provided config.
func Boot(config *Config) {
rand.Seed(time.Now().UnixNano())
st := stopper.NewStopper()
// Open database
db, err := database.Open(config.Database)
if err != nil {
log.Fatal(err)
}
defer db.Close()
// Start notifier
st.Begin()
go clair.RunNotifier(config.Notifier, db, st)
// Start API
st.Begin()
go api.Run(config.API, db, st)
st.Begin()
go api.RunHealth(config.API, db, st)
// Start updater
st.Begin()
go clair.RunUpdater(config.Updater, db, st)
// Wait for interruption and shutdown gracefully.
waitForSignals(syscall.SIGINT, syscall.SIGTERM)
log.Info("Received interruption, gracefully stopping ...")
st.Stop()
}
func main() {
// Parse command-line arguments
flag.CommandLine = flag.NewFlagSet(os.Args[0], flag.ExitOnError)
flagConfigPath := flag.String("config", "/etc/clair/config.yaml", "Load configuration from the specified file.")
flagCPUProfilePath := flag.String("cpu-profile", "", "Write a CPU profile to the specified file before exiting.")
flagLogLevel := flag.String("log-level", "info", "Define the logging level.")
flagInsecureTLS := flag.Bool("insecure-tls", false, "Disable TLS server's certificate chain and hostname verification when pulling layers.")
flag.Parse()
// Check for dependencies.
for _, bin := range []string{"git", "bzr", "rpm", "xz"} {
_, err := exec.LookPath(bin)
if err != nil {
log.Fatalf("failed to find dependency: %s", bin)
}
}
// Load configuration
config, err := LoadConfig(*flagConfigPath)
if err != nil {
log.Fatalf("failed to load configuration: %s", err)
}
// Initialize logging system
logLevel, err := capnslog.ParseLevel(strings.ToUpper(*flagLogLevel))
capnslog.SetGlobalLogLevel(logLevel)
capnslog.SetFormatter(capnslog.NewPrettyFormatter(os.Stdout, false))
// Enable CPU Profiling if specified
if *flagCPUProfilePath != "" {
defer stopCPUProfiling(startCPUProfiling(*flagCPUProfilePath))
}
// Enable TLS server's certificate chain and hostname verification
// when pulling layers if specified
if *flagInsecureTLS {
imagefmt.SetInsecureTLS(*flagInsecureTLS)
}
Boot(config)
}