func ExecConfigFromJob(job *engine.Job) (*ExecConfig, error) {
execConfig := &ExecConfig{
// TODO(vishh): Expose 'User' once it is supported.
//User: job.Getenv("User"),
// TODO(vishh): Expose 'Privileged' once it is supported.
//Privileged: job.GetenvBool("Privileged"),
Tty: job.GetenvBool("Tty"),
AttachStdin: job.GetenvBool("AttachStdin"),
AttachStderr: job.GetenvBool("AttachStderr"),
AttachStdout: job.GetenvBool("AttachStdout"),
}
cmd := job.GetenvList("Cmd")
if len(cmd) == 0 {
return nil, fmt.Errorf("No exec command specified")
}
execConfig.Cmd = cmd
return execConfig, nil
}
func LinkContainers(job *engine.Job) engine.Status {
var (
action = job.Args[0]
nfAction iptables.Action
childIP = job.Getenv("ChildIP")
parentIP = job.Getenv("ParentIP")
ignoreErrors = job.GetenvBool("IgnoreErrors")
ports = job.GetenvList("Ports")
)
switch action {
case "-A":
nfAction = iptables.Append
case "-I":
nfAction = iptables.Insert
case "-D":
nfAction = iptables.Delete
default:
return job.Errorf("Invalid action '%s' specified", action)
}
ip1 := net.ParseIP(parentIP)
if ip1 == nil {
return job.Errorf("parent IP '%s' is invalid", parentIP)
}
ip2 := net.ParseIP(childIP)
if ip2 == nil {
return job.Errorf("child IP '%s' is invalid", childIP)
}
chain := iptables.Chain{Name: "DOCKER", Bridge: bridgeIface}
for _, p := range ports {
port := nat.Port(p)
if err := chain.Link(nfAction, ip1, ip2, port.Int(), port.Proto()); !ignoreErrors && err != nil {
return job.Error(err)
}
}
return engine.StatusOK
}
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"),
Cpuset: job.Getenv("Cpuset"),
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"),
WorkingDir: job.Getenv("WorkingDir"),
NetworkDisabled: job.GetenvBool("NetworkDisabled"),
MacAddress: job.Getenv("MacAddress"),
}
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
}
job.GetenvJson("Labels", &config.Labels)
if Entrypoint := job.GetenvList("Entrypoint"); Entrypoint != nil {
config.Entrypoint = Entrypoint
}
return config
}
func ContainerHostConfigFromJob(job *engine.Job) *HostConfig {
if job.EnvExists("HostConfig") {
hostConfig := HostConfig{}
job.GetenvJson("HostConfig", &hostConfig)
// FIXME: These are for backward compatibility, if people use these
// options with `HostConfig`, we should still make them workable.
if job.EnvExists("Memory") && hostConfig.Memory == 0 {
hostConfig.Memory = job.GetenvInt64("Memory")
}
if job.EnvExists("MemorySwap") && hostConfig.MemorySwap == 0 {
hostConfig.MemorySwap = job.GetenvInt64("MemorySwap")
}
if job.EnvExists("CpuShares") && hostConfig.CpuShares == 0 {
hostConfig.CpuShares = job.GetenvInt64("CpuShares")
}
if job.EnvExists("Cpuset") && hostConfig.CpusetCpus == "" {
hostConfig.CpusetCpus = job.Getenv("Cpuset")
}
return &hostConfig
}
hostConfig := &HostConfig{
ContainerIDFile: job.Getenv("ContainerIDFile"),
Memory: job.GetenvInt64("Memory"),
MemorySwap: job.GetenvInt64("MemorySwap"),
CpuShares: job.GetenvInt64("CpuShares"),
CpusetCpus: job.Getenv("CpusetCpus"),
Privileged: job.GetenvBool("Privileged"),
PublishAllPorts: job.GetenvBool("PublishAllPorts"),
NetworkMode: NetworkMode(job.Getenv("NetworkMode")),
IpcMode: IpcMode(job.Getenv("IpcMode")),
PidMode: PidMode(job.Getenv("PidMode")),
ReadonlyRootfs: job.GetenvBool("ReadonlyRootfs"),
CgroupParent: job.Getenv("CgroupParent"),
}
// FIXME: This is for backward compatibility, if people use `Cpuset`
// in json, make it workable, we will only pass hostConfig.CpusetCpus
// to execDriver.
if job.EnvExists("Cpuset") && hostConfig.CpusetCpus == "" {
hostConfig.CpusetCpus = job.Getenv("Cpuset")
}
job.GetenvJson("LxcConf", &hostConfig.LxcConf)
job.GetenvJson("PortBindings", &hostConfig.PortBindings)
job.GetenvJson("Devices", &hostConfig.Devices)
job.GetenvJson("RestartPolicy", &hostConfig.RestartPolicy)
job.GetenvJson("Ulimits", &hostConfig.Ulimits)
job.GetenvJson("LogConfig", &hostConfig.LogConfig)
hostConfig.SecurityOpt = job.GetenvList("SecurityOpt")
if Binds := job.GetenvList("Binds"); Binds != nil {
hostConfig.Binds = Binds
}
if Links := job.GetenvList("Links"); Links != nil {
hostConfig.Links = Links
}
if Dns := job.GetenvList("Dns"); Dns != nil {
hostConfig.Dns = Dns
}
if DnsSearch := job.GetenvList("DnsSearch"); DnsSearch != nil {
hostConfig.DnsSearch = DnsSearch
}
if ExtraHosts := job.GetenvList("ExtraHosts"); ExtraHosts != nil {
hostConfig.ExtraHosts = ExtraHosts
}
if VolumesFrom := job.GetenvList("VolumesFrom"); VolumesFrom != nil {
hostConfig.VolumesFrom = VolumesFrom
}
if CapAdd := job.GetenvList("CapAdd"); CapAdd != nil {
hostConfig.CapAdd = CapAdd
}
if CapDrop := job.GetenvList("CapDrop"); CapDrop != nil {
hostConfig.CapDrop = CapDrop
}
return hostConfig
}