// cloudinitRunCmd returns the shell command that, when run, will create the
// "machine info" file containing the hostname of a machine.
// That command is destined to be used by cloudinit.
func (info *machineInfo) cloudinitRunCmd() (string, error) {
yaml, err := goyaml.Marshal(info)
if err != nil {
return "", err
}
script := fmt.Sprintf(`mkdir -p %s; echo -n %s > %s`, utils.ShQuote(environs.DataDir), utils.ShQuote(string(yaml)), utils.ShQuote(_MAASInstanceFilename))
return script, nil
}
// WriteCommands returns shell commands to write the agent
// configuration. It returns an error if the configuration does not
// have all the right elements.
func (c *Conf) WriteCommands() ([]string, error) {
if err := c.Check(); err != nil {
return nil, err
}
data, err := goyaml.Marshal(c)
if err != nil {
return nil, err
}
var cmds []string
addCmd := func(f string, a ...interface{}) {
cmds = append(cmds, fmt.Sprintf(f, a...))
}
f := utils.ShQuote(c.confFile())
addCmd("mkdir -p %s", utils.ShQuote(c.Dir()))
addCmd("install -m %o /dev/null %s", 0600, f)
addCmd("echo %s > %s", utils.ShQuote(string(data)), f)
return cmds, nil
}
// MachineAgentUpstartService returns the upstart config for a machine agent
// based on the tag and machineId passed in.
func MachineAgentUpstartService(name, toolsDir, dataDir, logDir, tag, machineId, logConfig string, env map[string]string) *Conf {
svc := NewService(name)
logFile := filepath.Join(logDir, tag+".log")
return &Conf{
Service: *svc,
Desc: fmt.Sprintf("juju %s agent", tag),
Limit: map[string]string{
"nofile": fmt.Sprintf("%d %d", maxAgentFiles, maxAgentFiles),
},
Cmd: filepath.Join(toolsDir, "jujud") +
" machine" +
" --log-file " + utils.ShQuote(logFile) +
" --data-dir " + utils.ShQuote(dataDir) +
" --machine-id " + machineId +
" " + logConfig,
Out: logFile,
Env: env,
}
}
// MongoUpstartService returns the upstart config for the mongo state service.
func MongoUpstartService(name, dataDir, dbDir string, port int) *Conf {
keyFile := filepath.Join(dataDir, "server.pem")
svc := NewService(name)
return &Conf{
Service: *svc,
Desc: "juju state database",
Limit: map[string]string{
"nofile": fmt.Sprintf("%d %d", maxMongoFiles, maxMongoFiles),
"nproc": fmt.Sprintf("%d %d", maxAgentFiles, maxAgentFiles),
},
Cmd: "/usr/bin/mongod" +
" --auth" +
" --dbpath=" + dbDir +
" --sslOnNormalPorts" +
" --sslPEMKeyFile " + utils.ShQuote(keyFile) +
" --sslPEMKeyPassword ignored" +
" --bind_ip 0.0.0.0" +
" --port " + fmt.Sprint(port) +
" --noprealloc" +
" --syslog" +
" --smallfiles",
}
}
func shquote(p string) string {
return utils.ShQuote(p)
}