|
| 1 | +/* |
| 2 | +© Copyright IBM Corporation 2018 |
| 3 | +
|
| 4 | +Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | +you may not use this file except in compliance with the License. |
| 6 | +You may obtain a copy of the License at |
| 7 | +
|
| 8 | +http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | +
|
| 10 | +Unless required by applicable law or agreed to in writing, software |
| 11 | +distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | +See the License for the specific language governing permissions and |
| 14 | +limitations under the License. |
| 15 | +*/ |
| 16 | +package main |
| 17 | + |
| 18 | +import ( |
| 19 | + "fmt" |
| 20 | + "io/ioutil" |
| 21 | + "os" |
| 22 | + "os/exec" |
| 23 | + "syscall" |
| 24 | + |
| 25 | + "github.com/ibm-messaging/mq-container/internal/command" |
| 26 | + "github.com/ibm-messaging/mq-container/internal/logger" |
| 27 | + "github.com/ibm-messaging/mq-container/internal/name" |
| 28 | +) |
| 29 | + |
| 30 | +var log *logger.Logger |
| 31 | + |
| 32 | +func setPassword(user string, password string) error { |
| 33 | + cmd := exec.Command("chpasswd") |
| 34 | + stdin, err := cmd.StdinPipe() |
| 35 | + if err != nil { |
| 36 | + return err |
| 37 | + } |
| 38 | + fmt.Fprintf(stdin, "%s:%s", user, password) |
| 39 | + stdin.Close() |
| 40 | + _, _, err = command.RunCmd(cmd) |
| 41 | + if err != nil { |
| 42 | + return err |
| 43 | + } |
| 44 | + log.Printf("Set password for \"%v\" user", user) |
| 45 | + return nil |
| 46 | +} |
| 47 | + |
| 48 | +func getLogFormat() string { |
| 49 | + return os.Getenv("LOG_FORMAT") |
| 50 | +} |
| 51 | + |
| 52 | +func getDebug() bool { |
| 53 | + debug := os.Getenv("DEBUG") |
| 54 | + if debug == "true" || debug == "1" { |
| 55 | + return true |
| 56 | + } |
| 57 | + return false |
| 58 | +} |
| 59 | + |
| 60 | +func configureLogger() error { |
| 61 | + var err error |
| 62 | + f := getLogFormat() |
| 63 | + d := getDebug() |
| 64 | + n, err := name.GetQueueManagerName() |
| 65 | + if err != nil { |
| 66 | + return err |
| 67 | + } |
| 68 | + switch f { |
| 69 | + case "json": |
| 70 | + log, err = logger.NewLogger(os.Stderr, d, true, n) |
| 71 | + if err != nil { |
| 72 | + return err |
| 73 | + } |
| 74 | + case "basic": |
| 75 | + log, err = logger.NewLogger(os.Stderr, d, false, n) |
| 76 | + if err != nil { |
| 77 | + return err |
| 78 | + } |
| 79 | + default: |
| 80 | + log, err = logger.NewLogger(os.Stdout, d, false, n) |
| 81 | + return fmt.Errorf("invalid value for LOG_FORMAT: %v", f) |
| 82 | + } |
| 83 | + return nil |
| 84 | +} |
| 85 | + |
| 86 | +func logTerminationf(format string, args ...interface{}) { |
| 87 | + logTermination(fmt.Sprintf(format, args)) |
| 88 | +} |
| 89 | + |
| 90 | +// TODO: Duplicated code |
| 91 | +func logTermination(args ...interface{}) { |
| 92 | + msg := fmt.Sprint(args) |
| 93 | + // Write the message to the termination log. This is the default place |
| 94 | + // that Kubernetes will look for termination information. |
| 95 | + log.Debugf("Writing termination message: %v", msg) |
| 96 | + err := ioutil.WriteFile("/dev/termination-log", []byte(msg), 0660) |
| 97 | + if err != nil { |
| 98 | + log.Debug(err) |
| 99 | + } |
| 100 | + log.Error(msg) |
| 101 | +} |
| 102 | + |
| 103 | +func doMain() error { |
| 104 | + err := configureLogger() |
| 105 | + if err != nil { |
| 106 | + logTermination(err) |
| 107 | + return err |
| 108 | + } |
| 109 | + adminPassword, set := os.LookupEnv("MQ_ADMIN_PASSWORD") |
| 110 | + if set { |
| 111 | + err = setPassword("admin", adminPassword) |
| 112 | + if err != nil { |
| 113 | + logTerminationf("Error setting admin password: %v", err) |
| 114 | + return err |
| 115 | + } |
| 116 | + } |
| 117 | + appPassword, set := os.LookupEnv("MQ_APP_PASSWORD") |
| 118 | + if set { |
| 119 | + err = setPassword("app", appPassword) |
| 120 | + if err != nil { |
| 121 | + logTerminationf("Error setting app password: %v", err) |
| 122 | + return err |
| 123 | + } |
| 124 | + } |
| 125 | + |
| 126 | + err = updateMQSC(set) |
| 127 | + if err != nil { |
| 128 | + logTerminationf("Error updating MQSC: %v", err) |
| 129 | + return err |
| 130 | + } |
| 131 | + |
| 132 | + return nil |
| 133 | +} |
| 134 | + |
| 135 | +var osExit = os.Exit |
| 136 | + |
| 137 | +func main() { |
| 138 | + err := doMain() |
| 139 | + if err != nil { |
| 140 | + osExit(1) |
| 141 | + } else { |
| 142 | + // Replace this process with runmqserver |
| 143 | + syscall.Exec("/usr/local/bin/runmqserver", []string{"runmqserver"}, os.Environ()) |
| 144 | + } |
| 145 | +} |
0 commit comments