func proxyCommand(host *config.Host, command string, dryRun bool) error {
command = host.ExpandString(command)
Logger.Debugf("ProxyCommand: %s", command)
args, err := shlex.Split(command)
if err != nil {
return err
}
if dryRun {
return fmt.Errorf("dry-run: Execute %s", args)
}
spawn := exec.Command(args[0], args[1:]...)
spawn.Stdout = os.Stdout
spawn.Stdin = os.Stdin
spawn.Stderr = os.Stderr
return spawn.Run()
}
func hostPrepare(host *config.Host) error {
if host.HostName == "" {
host.HostName = host.Name()
}
if len(host.ResolveNameservers) > 0 {
Logger.Debugf("Resolving host: '%s' using nameservers %s", host.HostName, host.ResolveNameservers)
// FIXME: resolve using custom dns server
results, err := net.LookupAddr(host.HostName)
if err != nil {
return err
}
if len(results) > 0 {
host.HostName = results[0]
}
Logger.Debugf("Resolved host is: %s", host.HostName)
}
if host.ResolveCommand != "" {
command := host.ExpandString(host.ResolveCommand)
Logger.Debugf("Resolving host: %q using command: %q", host.HostName, command)
args, err := shlex.Split(command)
if err != nil {
return err
}
cmd := exec.Command(args[0], args[1:]...)
var stdout bytes.Buffer
var stderr bytes.Buffer
cmd.Stdout = &stdout
cmd.Stderr = &stderr
if err := cmd.Run(); err != nil {
Logger.Errorf("ResolveCommand failed: %s", stderr.String())
return err
}
host.HostName = strings.TrimSpace(fmt.Sprintf("%s", stdout.String()))
Logger.Debugf("Resolved host is: %s", host.HostName)
}
return nil
}
func (c *Container) parseCmd() {
flags := flag.NewFlagSet("run", flag.ExitOnError)
flRemove := flags.Bool([]string{"#rm", "-rm"}, false, "")
flDetach := flags.Bool([]string{"d", "-detach"}, false, "")
flName := flags.String([]string{"#name", "-name"}, "", "")
args, err := shlex.Split(c.ContainerCfg.Cmd)
if err != nil {
c.Err = err
return
}
log.Debugf("Parsing [%s]", strings.Join(args, ","))
c.Config, c.HostConfig, _, c.Err = runconfig.Parse(flags, args)
c.Name = *flName
c.detach = *flDetach
c.remove = *flRemove
}
func hostPrepare(host *config.Host) error {
if host.HostName == "" {
host.HostName = host.Name()
}
if len(host.ResolveNameservers) > 0 {
Logger.Debugf("Resolving host: '%s' using nameservers %s", host.HostName, host.ResolveNameservers)
// FIXME: resolve using custom dns server
results, err := net.LookupAddr(host.HostName)
if err != nil {
return err
}
if len(results) > 0 {
host.HostName = results[0]
}
Logger.Debugf("Resolved host is: %s", host.HostName)
}
if host.ResolveCommand != "" {
command := host.ExpandString(host.ResolveCommand)
Logger.Debugf("Resolving host: %q using command: %q", host.HostName, command)
args, err := shlex.Split(command)
if err != nil {
return err
}
out, err := exec.Command(args[0], args[1:]...).Output()
if err != nil {
return err
}
host.HostName = strings.TrimSpace(fmt.Sprintf("%s", out))
Logger.Debugf("Resolved host is: %s", host.HostName)
}
return nil
}
func TestParseCommand(t *testing.T) {
exp := []string{"sh", "-c", "exec /opt/bin/flanneld -logtostderr=true -iface=${NODE_IP}"}
cmd, err := shlex.Split("sh -c 'exec /opt/bin/flanneld -logtostderr=true -iface=${NODE_IP}'")
assert.Nil(t, err)
assert.Equal(t, exp, cmd)
}
func Convert(c *project.ServiceConfig) (*runconfig.Config, *runconfig.HostConfig, error) {
vs := Filter(c.Volumes, isVolume)
volumes := make(map[string]struct{}, len(vs))
for _, v := range vs {
volumes[v] = struct{}{}
}
cmd, _ := shlex.Split(c.Command)
entrypoint, _ := shlex.Split(c.Entrypoint)
ports, binding, err := nat.ParsePortSpecs(c.Ports)
if err != nil {
return nil, nil, err
}
restart, err := runconfig.ParseRestartPolicy(c.Restart)
if err != nil {
return nil, nil, err
}
dns := c.Dns.Slice()
dnssearch := c.DnsSearch.Slice()
labels := c.Labels.MapParts()
if len(c.Expose) > 0 {
exposedPorts, _, err := nat.ParsePortSpecs(c.Expose)
ports = exposedPorts
if err != nil {
return nil, nil, err
}
}
config := &runconfig.Config{
Entrypoint: runconfig.NewEntrypoint(entrypoint...),
Hostname: c.Hostname,
Domainname: c.DomainName,
User: c.User,
Env: c.Environment.Slice(),
Cmd: runconfig.NewCommand(cmd...),
Image: c.Image,
Labels: labels,
ExposedPorts: ports,
Tty: c.Tty,
OpenStdin: c.StdinOpen,
WorkingDir: c.WorkingDir,
Volumes: volumes,
}
host_config := &runconfig.HostConfig{
VolumesFrom: c.VolumesFrom,
CapAdd: c.CapAdd,
CapDrop: c.CapDrop,
CpuShares: c.CpuShares,
Privileged: c.Privileged,
Binds: Filter(c.Volumes, isBind),
Dns: dns,
DnsSearch: dnssearch,
LogConfig: runconfig.LogConfig{
Type: c.LogDriver,
},
Memory: c.MemLimit,
NetworkMode: runconfig.NetworkMode(c.Net),
ReadonlyRootfs: c.ReadOnly,
PidMode: runconfig.PidMode(c.Pid),
IpcMode: runconfig.IpcMode(c.Ipc),
PortBindings: binding,
RestartPolicy: restart,
}
return config, host_config, nil
}