func LinkContainers(job *engine.Job) engine.Status {
var (
action = job.Args[0]
childIP = job.Getenv("ChildIP")
parentIP = job.Getenv("ParentIP")
ignoreErrors = job.GetenvBool("IgnoreErrors")
ports = job.GetenvList("Ports")
)
split := func(p string) (string, string) {
parts := strings.Split(p, "/")
return parts[0], parts[1]
}
for _, p := range ports {
port, proto := split(p)
if output, err := iptables.Raw(action, "FORWARD",
"-i", bridgeIface, "-o", bridgeIface,
"-p", proto,
"-s", parentIP,
"--dport", port,
"-d", childIP,
"-j", "ACCEPT"); !ignoreErrors && err != nil {
job.Error(err)
return engine.StatusErr
} else if len(output) != 0 {
job.Errorf("Error toggle iptables forward: %s", output)
return engine.StatusErr
}
}
return engine.StatusOK
}
func ContainerHostConfigFromJob(job *engine.Job) *HostConfig {
hostConfig := &HostConfig{
ContainerIDFile: job.Getenv("ContainerIDFile"),
Privileged: job.GetenvBool("Privileged"),
PublishAllPorts: job.GetenvBool("PublishAllPorts"),
}
job.GetenvJson("LxcConf", &hostConfig.LxcConf)
job.GetenvJson("PortBindings", &hostConfig.PortBindings)
if Binds := job.GetenvList("Binds"); Binds != nil {
hostConfig.Binds = Binds
}
if Links := job.GetenvList("Links"); Links != nil {
hostConfig.Links = Links
}
return hostConfig
}
func ContainerConfigFromJob(job *engine.Job) *Config {
config := &Config{
Hostname: job.Getenv("Hostname"),
Domainname: job.Getenv("Domainname"),
User: job.Getenv("User"),
Memory: job.GetenvInt64("Memory"),
MemorySwap: job.GetenvInt64("MemorySwap"),
CpuShares: job.GetenvInt64("CpuShares"),
AttachStdin: job.GetenvBool("AttachStdin"),
AttachStdout: job.GetenvBool("AttachStdout"),
AttachStderr: job.GetenvBool("AttachStderr"),
Tty: job.GetenvBool("Tty"),
OpenStdin: job.GetenvBool("OpenStdin"),
StdinOnce: job.GetenvBool("StdinOnce"),
Image: job.Getenv("Image"),
VolumesFrom: job.Getenv("VolumesFrom"),
WorkingDir: job.Getenv("WorkingDir"),
NetworkDisabled: job.GetenvBool("NetworkDisabled"),
}
job.GetenvJson("ExposedPorts", &config.ExposedPorts)
job.GetenvJson("Volumes", &config.Volumes)
if PortSpecs := job.GetenvList("PortSpecs"); PortSpecs != nil {
config.PortSpecs = PortSpecs
}
if Env := job.GetenvList("Env"); Env != nil {
config.Env = Env
}
if Cmd := job.GetenvList("Cmd"); Cmd != nil {
config.Cmd = Cmd
}
if Dns := job.GetenvList("Dns"); Dns != nil {
config.Dns = Dns
}
if Entrypoint := job.GetenvList("Entrypoint"); Entrypoint != nil {
config.Entrypoint = Entrypoint
}
return config
}
// ConfigFromJob creates and returns a new DaemonConfig object
// by parsing the contents of a job's environment.
func DaemonConfigFromJob(job *engine.Job) *DaemonConfig {
config := &DaemonConfig{
Pidfile: job.Getenv("Pidfile"),
Root: job.Getenv("Root"),
AutoRestart: job.GetenvBool("AutoRestart"),
EnableIptables: job.GetenvBool("EnableIptables"),
EnableIpForward: job.GetenvBool("EnableIpForward"),
BridgeIP: job.Getenv("BridgeIP"),
DefaultIp: net.ParseIP(job.Getenv("DefaultIp")),
InterContainerCommunication: job.GetenvBool("InterContainerCommunication"),
GraphDriver: job.Getenv("GraphDriver"),
}
if dns := job.GetenvList("Dns"); dns != nil {
config.Dns = dns
}
if mtu := job.GetenvInt("Mtu"); mtu != 0 {
config.Mtu = mtu
} else {
config.Mtu = DefaultNetworkMtu
}
config.DisableNetwork = job.Getenv("BridgeIface") == DisableNetworkBridge
return config
}