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container.go
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container.go
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// Copyright © 2023 Ory Corp
// SPDX-License-Identifier: Apache-2.0
// Copyright 2013 go-dockerclient authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package docker
import (
"context"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"strconv"
"strings"
"time"
"github.com/docker/go-units"
)
// ErrContainerAlreadyExists is the error returned by CreateContainer when the
// container already exists.
var ErrContainerAlreadyExists = errors.New("container already exists")
// ListContainersOptions specify parameters to the ListContainers function.
//
// See https://goo.gl/kaOHGw for more details.
type ListContainersOptions struct {
All bool
Size bool
Limit int
Since string
Before string
Filters map[string][]string
Context context.Context
}
// APIPort is a type that represents a port mapping returned by the Docker API
type APIPort struct {
PrivatePort int64 `json:"PrivatePort,omitempty" yaml:"PrivatePort,omitempty" toml:"PrivatePort,omitempty"`
PublicPort int64 `json:"PublicPort,omitempty" yaml:"PublicPort,omitempty" toml:"PublicPort,omitempty"`
Type string `json:"Type,omitempty" yaml:"Type,omitempty" toml:"Type,omitempty"`
IP string `json:"IP,omitempty" yaml:"IP,omitempty" toml:"IP,omitempty"`
}
// APIMount represents a mount point for a container.
type APIMount struct {
Name string `json:"Name,omitempty" yaml:"Name,omitempty" toml:"Name,omitempty"`
Source string `json:"Source,omitempty" yaml:"Source,omitempty" toml:"Source,omitempty"`
Destination string `json:"Destination,omitempty" yaml:"Destination,omitempty" toml:"Destination,omitempty"`
Driver string `json:"Driver,omitempty" yaml:"Driver,omitempty" toml:"Driver,omitempty"`
Mode string `json:"Mode,omitempty" yaml:"Mode,omitempty" toml:"Mode,omitempty"`
RW bool `json:"RW,omitempty" yaml:"RW,omitempty" toml:"RW,omitempty"`
Propagation string `json:"Propagation,omitempty" yaml:"Propagation,omitempty" toml:"Propagation,omitempty"`
}
// APIContainers represents each container in the list returned by
// ListContainers.
type APIContainers struct {
ID string `json:"Id" yaml:"Id" toml:"Id"`
Image string `json:"Image,omitempty" yaml:"Image,omitempty" toml:"Image,omitempty"`
Command string `json:"Command,omitempty" yaml:"Command,omitempty" toml:"Command,omitempty"`
Created int64 `json:"Created,omitempty" yaml:"Created,omitempty" toml:"Created,omitempty"`
State string `json:"State,omitempty" yaml:"State,omitempty" toml:"State,omitempty"`
Status string `json:"Status,omitempty" yaml:"Status,omitempty" toml:"Status,omitempty"`
Ports []APIPort `json:"Ports,omitempty" yaml:"Ports,omitempty" toml:"Ports,omitempty"`
SizeRw int64 `json:"SizeRw,omitempty" yaml:"SizeRw,omitempty" toml:"SizeRw,omitempty"`
SizeRootFs int64 `json:"SizeRootFs,omitempty" yaml:"SizeRootFs,omitempty" toml:"SizeRootFs,omitempty"`
Names []string `json:"Names,omitempty" yaml:"Names,omitempty" toml:"Names,omitempty"`
Labels map[string]string `json:"Labels,omitempty" yaml:"Labels,omitempty" toml:"Labels,omitempty"`
Networks NetworkList `json:"NetworkSettings,omitempty" yaml:"NetworkSettings,omitempty" toml:"NetworkSettings,omitempty"`
Mounts []APIMount `json:"Mounts,omitempty" yaml:"Mounts,omitempty" toml:"Mounts,omitempty"`
}
// NetworkList encapsulates a map of networks, as returned by the Docker API in
// ListContainers.
type NetworkList struct {
Networks map[string]ContainerNetwork `json:"Networks" yaml:"Networks,omitempty" toml:"Networks,omitempty"`
}
// ListContainers returns a slice of containers matching the given criteria.
//
// See https://goo.gl/kaOHGw for more details.
func (c *Client) ListContainers(opts ListContainersOptions) ([]APIContainers, error) {
path := "/containers/json?" + queryString(opts)
resp, err := c.do("GET", path, doOptions{context: opts.Context})
if err != nil {
return nil, err
}
defer resp.Body.Close()
var containers []APIContainers
if err := json.NewDecoder(resp.Body).Decode(&containers); err != nil {
return nil, err
}
return containers, nil
}
// Port represents the port number and the protocol, in the form
// <number>/<protocol>. For example: 80/tcp.
type Port string
// Port returns the number of the port.
func (p Port) Port() string {
return strings.Split(string(p), "/")[0]
}
// Proto returns the name of the protocol.
func (p Port) Proto() string {
parts := strings.Split(string(p), "/")
if len(parts) == 1 {
return "tcp"
}
return parts[1]
}
// HealthCheck represents one check of health.
type HealthCheck struct {
Start time.Time `json:"Start,omitempty" yaml:"Start,omitempty" toml:"Start,omitempty"`
End time.Time `json:"End,omitempty" yaml:"End,omitempty" toml:"End,omitempty"`
ExitCode int `json:"ExitCode,omitempty" yaml:"ExitCode,omitempty" toml:"ExitCode,omitempty"`
Output string `json:"Output,omitempty" yaml:"Output,omitempty" toml:"Output,omitempty"`
}
// Health represents the health of a container.
type Health struct {
Status string `json:"Status,omitempty" yaml:"Status,omitempty" toml:"Status,omitempty"`
FailingStreak int `json:"FailingStreak,omitempty" yaml:"FailingStreak,omitempty" toml:"FailingStreak,omitempty"`
Log []HealthCheck `json:"Log,omitempty" yaml:"Log,omitempty" toml:"Log,omitempty"`
}
// State represents the state of a container.
type State struct {
Status string `json:"Status,omitempty" yaml:"Status,omitempty" toml:"Status,omitempty"`
Running bool `json:"Running,omitempty" yaml:"Running,omitempty" toml:"Running,omitempty"`
Paused bool `json:"Paused,omitempty" yaml:"Paused,omitempty" toml:"Paused,omitempty"`
Restarting bool `json:"Restarting,omitempty" yaml:"Restarting,omitempty" toml:"Restarting,omitempty"`
OOMKilled bool `json:"OOMKilled,omitempty" yaml:"OOMKilled,omitempty" toml:"OOMKilled,omitempty"`
RemovalInProgress bool `json:"RemovalInProgress,omitempty" yaml:"RemovalInProgress,omitempty" toml:"RemovalInProgress,omitempty"`
Dead bool `json:"Dead,omitempty" yaml:"Dead,omitempty" toml:"Dead,omitempty"`
Pid int `json:"Pid,omitempty" yaml:"Pid,omitempty" toml:"Pid,omitempty"`
ExitCode int `json:"ExitCode,omitempty" yaml:"ExitCode,omitempty" toml:"ExitCode,omitempty"`
Error string `json:"Error,omitempty" yaml:"Error,omitempty" toml:"Error,omitempty"`
StartedAt time.Time `json:"StartedAt,omitempty" yaml:"StartedAt,omitempty" toml:"StartedAt,omitempty"`
FinishedAt time.Time `json:"FinishedAt,omitempty" yaml:"FinishedAt,omitempty" toml:"FinishedAt,omitempty"`
Health Health `json:"Health,omitempty" yaml:"Health,omitempty" toml:"Health,omitempty"`
}
// String returns a human-readable description of the state
func (s *State) String() string {
if s.Running {
if s.Paused {
return fmt.Sprintf("Up %s (Paused)", units.HumanDuration(time.Now().UTC().Sub(s.StartedAt)))
}
if s.Restarting {
return fmt.Sprintf("Restarting (%d) %s ago", s.ExitCode, units.HumanDuration(time.Now().UTC().Sub(s.FinishedAt)))
}
return fmt.Sprintf("Up %s", units.HumanDuration(time.Now().UTC().Sub(s.StartedAt)))
}
if s.RemovalInProgress {
return "Removal In Progress"
}
if s.Dead {
return "Dead"
}
if s.StartedAt.IsZero() {
return "Created"
}
if s.FinishedAt.IsZero() {
return ""
}
return fmt.Sprintf("Exited (%d) %s ago", s.ExitCode, units.HumanDuration(time.Now().UTC().Sub(s.FinishedAt)))
}
// StateString returns a single string to describe state
func (s *State) StateString() string {
if s.Running {
if s.Paused {
return "paused"
}
if s.Restarting {
return "restarting"
}
return "running"
}
if s.Dead {
return "dead"
}
if s.StartedAt.IsZero() {
return "created"
}
return "exited"
}
// PortBinding represents the host/container port mapping as returned in the
// `docker inspect` json
type PortBinding struct {
HostIP string `json:"HostIp,omitempty" yaml:"HostIp,omitempty" toml:"HostIp,omitempty"`
HostPort string `json:"HostPort,omitempty" yaml:"HostPort,omitempty" toml:"HostPort,omitempty"`
}
// PortMapping represents a deprecated field in the `docker inspect` output,
// and its value as found in NetworkSettings should always be nil
type PortMapping map[string]string
// ContainerNetwork represents the networking settings of a container per network.
type ContainerNetwork struct {
Aliases []string `json:"Aliases,omitempty" yaml:"Aliases,omitempty" toml:"Aliases,omitempty"`
MacAddress string `json:"MacAddress,omitempty" yaml:"MacAddress,omitempty" toml:"MacAddress,omitempty"`
GlobalIPv6PrefixLen int `json:"GlobalIPv6PrefixLen,omitempty" yaml:"GlobalIPv6PrefixLen,omitempty" toml:"GlobalIPv6PrefixLen,omitempty"`
GlobalIPv6Address string `json:"GlobalIPv6Address,omitempty" yaml:"GlobalIPv6Address,omitempty" toml:"GlobalIPv6Address,omitempty"`
IPv6Gateway string `json:"IPv6Gateway,omitempty" yaml:"IPv6Gateway,omitempty" toml:"IPv6Gateway,omitempty"`
IPPrefixLen int `json:"IPPrefixLen,omitempty" yaml:"IPPrefixLen,omitempty" toml:"IPPrefixLen,omitempty"`
IPAddress string `json:"IPAddress,omitempty" yaml:"IPAddress,omitempty" toml:"IPAddress,omitempty"`
Gateway string `json:"Gateway,omitempty" yaml:"Gateway,omitempty" toml:"Gateway,omitempty"`
EndpointID string `json:"EndpointID,omitempty" yaml:"EndpointID,omitempty" toml:"EndpointID,omitempty"`
NetworkID string `json:"NetworkID,omitempty" yaml:"NetworkID,omitempty" toml:"NetworkID,omitempty"`
}
// NetworkSettings contains network-related information about a container
type NetworkSettings struct {
Networks map[string]ContainerNetwork `json:"Networks,omitempty" yaml:"Networks,omitempty" toml:"Networks,omitempty"`
IPAddress string `json:"IPAddress,omitempty" yaml:"IPAddress,omitempty" toml:"IPAddress,omitempty"`
IPPrefixLen int `json:"IPPrefixLen,omitempty" yaml:"IPPrefixLen,omitempty" toml:"IPPrefixLen,omitempty"`
MacAddress string `json:"MacAddress,omitempty" yaml:"MacAddress,omitempty" toml:"MacAddress,omitempty"`
Gateway string `json:"Gateway,omitempty" yaml:"Gateway,omitempty" toml:"Gateway,omitempty"`
Bridge string `json:"Bridge,omitempty" yaml:"Bridge,omitempty" toml:"Bridge,omitempty"`
PortMapping map[string]PortMapping `json:"PortMapping,omitempty" yaml:"PortMapping,omitempty" toml:"PortMapping,omitempty"`
Ports map[Port][]PortBinding `json:"Ports,omitempty" yaml:"Ports,omitempty" toml:"Ports,omitempty"`
NetworkID string `json:"NetworkID,omitempty" yaml:"NetworkID,omitempty" toml:"NetworkID,omitempty"`
EndpointID string `json:"EndpointID,omitempty" yaml:"EndpointID,omitempty" toml:"EndpointID,omitempty"`
SandboxKey string `json:"SandboxKey,omitempty" yaml:"SandboxKey,omitempty" toml:"SandboxKey,omitempty"`
GlobalIPv6Address string `json:"GlobalIPv6Address,omitempty" yaml:"GlobalIPv6Address,omitempty" toml:"GlobalIPv6Address,omitempty"`
GlobalIPv6PrefixLen int `json:"GlobalIPv6PrefixLen,omitempty" yaml:"GlobalIPv6PrefixLen,omitempty" toml:"GlobalIPv6PrefixLen,omitempty"`
IPv6Gateway string `json:"IPv6Gateway,omitempty" yaml:"IPv6Gateway,omitempty" toml:"IPv6Gateway,omitempty"`
LinkLocalIPv6Address string `json:"LinkLocalIPv6Address,omitempty" yaml:"LinkLocalIPv6Address,omitempty" toml:"LinkLocalIPv6Address,omitempty"`
LinkLocalIPv6PrefixLen int `json:"LinkLocalIPv6PrefixLen,omitempty" yaml:"LinkLocalIPv6PrefixLen,omitempty" toml:"LinkLocalIPv6PrefixLen,omitempty"`
SecondaryIPAddresses []string `json:"SecondaryIPAddresses,omitempty" yaml:"SecondaryIPAddresses,omitempty" toml:"SecondaryIPAddresses,omitempty"`
SecondaryIPv6Addresses []string `json:"SecondaryIPv6Addresses,omitempty" yaml:"SecondaryIPv6Addresses,omitempty" toml:"SecondaryIPv6Addresses,omitempty"`
}
// PortMappingAPI translates the port mappings as contained in NetworkSettings
// into the format in which they would appear when returned by the API
func (settings *NetworkSettings) PortMappingAPI() []APIPort {
var mapping []APIPort
for port, bindings := range settings.Ports {
p, _ := parsePort(port.Port())
if len(bindings) == 0 {
mapping = append(mapping, APIPort{
PrivatePort: int64(p),
Type: port.Proto(),
})
continue
}
for _, binding := range bindings {
p, _ := parsePort(port.Port())
h, _ := parsePort(binding.HostPort)
mapping = append(mapping, APIPort{
PrivatePort: int64(p),
PublicPort: int64(h),
Type: port.Proto(),
IP: binding.HostIP,
})
}
}
return mapping
}
func parsePort(rawPort string) (int, error) {
port, err := strconv.ParseUint(rawPort, 10, 16)
if err != nil {
return 0, err
}
return int(port), nil
}
// Config is the list of configuration options used when creating a container.
// Config does not contain the options that are specific to starting a container on a
// given host. Those are contained in HostConfig
type Config struct {
Hostname string `json:"Hostname,omitempty" yaml:"Hostname,omitempty" toml:"Hostname,omitempty"`
Domainname string `json:"Domainname,omitempty" yaml:"Domainname,omitempty" toml:"Domainname,omitempty"`
User string `json:"User,omitempty" yaml:"User,omitempty" toml:"User,omitempty"`
Memory int64 `json:"Memory,omitempty" yaml:"Memory,omitempty" toml:"Memory,omitempty"`
MemorySwap int64 `json:"MemorySwap,omitempty" yaml:"MemorySwap,omitempty" toml:"MemorySwap,omitempty"`
MemoryReservation int64 `json:"MemoryReservation,omitempty" yaml:"MemoryReservation,omitempty" toml:"MemoryReservation,omitempty"`
KernelMemory int64 `json:"KernelMemory,omitempty" yaml:"KernelMemory,omitempty" toml:"KernelMemory,omitempty"`
CPUShares int64 `json:"CpuShares,omitempty" yaml:"CpuShares,omitempty" toml:"CpuShares,omitempty"`
CPUSet string `json:"Cpuset,omitempty" yaml:"Cpuset,omitempty" toml:"Cpuset,omitempty"`
PortSpecs []string `json:"PortSpecs,omitempty" yaml:"PortSpecs,omitempty" toml:"PortSpecs,omitempty"`
ExposedPorts map[Port]struct{} `json:"ExposedPorts,omitempty" yaml:"ExposedPorts,omitempty" toml:"ExposedPorts,omitempty"`
PublishService string `json:"PublishService,omitempty" yaml:"PublishService,omitempty" toml:"PublishService,omitempty"`
StopSignal string `json:"StopSignal,omitempty" yaml:"StopSignal,omitempty" toml:"StopSignal,omitempty"`
StopTimeout int `json:"StopTimeout,omitempty" yaml:"StopTimeout,omitempty" toml:"StopTimeout,omitempty"`
Env []string `json:"Env,omitempty" yaml:"Env,omitempty" toml:"Env,omitempty"`
Cmd []string `json:"Cmd" yaml:"Cmd" toml:"Cmd"`
Shell []string `json:"Shell,omitempty" yaml:"Shell,omitempty" toml:"Shell,omitempty"`
Healthcheck *HealthConfig `json:"Healthcheck,omitempty" yaml:"Healthcheck,omitempty" toml:"Healthcheck,omitempty"`
DNS []string `json:"Dns,omitempty" yaml:"Dns,omitempty" toml:"Dns,omitempty"` // For Docker API v1.9 and below only
Image string `json:"Image,omitempty" yaml:"Image,omitempty" toml:"Image,omitempty"`
Volumes map[string]struct{} `json:"Volumes,omitempty" yaml:"Volumes,omitempty" toml:"Volumes,omitempty"`
VolumeDriver string `json:"VolumeDriver,omitempty" yaml:"VolumeDriver,omitempty" toml:"VolumeDriver,omitempty"`
WorkingDir string `json:"WorkingDir,omitempty" yaml:"WorkingDir,omitempty" toml:"WorkingDir,omitempty"`
MacAddress string `json:"MacAddress,omitempty" yaml:"MacAddress,omitempty" toml:"MacAddress,omitempty"`
Entrypoint []string `json:"Entrypoint" yaml:"Entrypoint" toml:"Entrypoint"`
SecurityOpts []string `json:"SecurityOpts,omitempty" yaml:"SecurityOpts,omitempty" toml:"SecurityOpts,omitempty"`
OnBuild []string `json:"OnBuild,omitempty" yaml:"OnBuild,omitempty" toml:"OnBuild,omitempty"`
Mounts []Mount `json:"Mounts,omitempty" yaml:"Mounts,omitempty" toml:"Mounts,omitempty"`
Labels map[string]string `json:"Labels,omitempty" yaml:"Labels,omitempty" toml:"Labels,omitempty"`
AttachStdin bool `json:"AttachStdin,omitempty" yaml:"AttachStdin,omitempty" toml:"AttachStdin,omitempty"`
AttachStdout bool `json:"AttachStdout,omitempty" yaml:"AttachStdout,omitempty" toml:"AttachStdout,omitempty"`
AttachStderr bool `json:"AttachStderr,omitempty" yaml:"AttachStderr,omitempty" toml:"AttachStderr,omitempty"`
ArgsEscaped bool `json:"ArgsEscaped,omitempty" yaml:"ArgsEscaped,omitempty" toml:"ArgsEscaped,omitempty"`
Tty bool `json:"Tty,omitempty" yaml:"Tty,omitempty" toml:"Tty,omitempty"`
OpenStdin bool `json:"OpenStdin,omitempty" yaml:"OpenStdin,omitempty" toml:"OpenStdin,omitempty"`
StdinOnce bool `json:"StdinOnce,omitempty" yaml:"StdinOnce,omitempty" toml:"StdinOnce,omitempty"`
NetworkDisabled bool `json:"NetworkDisabled,omitempty" yaml:"NetworkDisabled,omitempty" toml:"NetworkDisabled,omitempty"`
// This is no longer used and has been kept here for backward
// compatibility, please use HostConfig.VolumesFrom.
VolumesFrom string `json:"VolumesFrom,omitempty" yaml:"VolumesFrom,omitempty" toml:"VolumesFrom,omitempty"`
}
// HostMount represents a mount point in the container in HostConfig.
//
// It has been added in the version 1.25 of the Docker API
type HostMount struct {
Target string `json:"Target,omitempty" yaml:"Target,omitempty" toml:"Target,omitempty"`
Source string `json:"Source,omitempty" yaml:"Source,omitempty" toml:"Source,omitempty"`
Type string `json:"Type,omitempty" yaml:"Type,omitempty" toml:"Type,omitempty"`
ReadOnly bool `json:"ReadOnly,omitempty" yaml:"ReadOnly,omitempty" toml:"ReadOnly,omitempty"`
BindOptions *BindOptions `json:"BindOptions,omitempty" yaml:"BindOptions,omitempty" toml:"BindOptions,omitempty"`
VolumeOptions *VolumeOptions `json:"VolumeOptions,omitempty" yaml:"VolumeOptions,omitempty" toml:"VolumeOptions,omitempty"`
TempfsOptions *TempfsOptions `json:"TempfsOptions,omitempty" yaml:"TempfsOptions,omitempty" toml:"TempfsOptions,omitempty"`
}
// BindOptions contains optional configuration for the bind type
type BindOptions struct {
Propagation string `json:"Propagation,omitempty" yaml:"Propagation,omitempty" toml:"Propagation,omitempty"`
}
// VolumeOptions contains optional configuration for the volume type
type VolumeOptions struct {
NoCopy bool `json:"NoCopy,omitempty" yaml:"NoCopy,omitempty" toml:"NoCopy,omitempty"`
Labels map[string]string `json:"Labels,omitempty" yaml:"Labels,omitempty" toml:"Labels,omitempty"`
DriverConfig VolumeDriverConfig `json:"DriverConfig,omitempty" yaml:"DriverConfig,omitempty" toml:"DriverConfig,omitempty"`
}
// TempfsOptions contains optional configuration for the tempfs type
type TempfsOptions struct {
SizeBytes int64 `json:"SizeBytes,omitempty" yaml:"SizeBytes,omitempty" toml:"SizeBytes,omitempty"`
Mode int `json:"Mode,omitempty" yaml:"Mode,omitempty" toml:"Mode,omitempty"`
}
// VolumeDriverConfig holds a map of volume driver specific options
type VolumeDriverConfig struct {
Name string `json:"Name,omitempty" yaml:"Name,omitempty" toml:"Name,omitempty"`
Options map[string]string `json:"Options,omitempty" yaml:"Options,omitempty" toml:"Options,omitempty"`
}
// Mount represents a mount point in the container.
//
// It has been added in the version 1.20 of the Docker API, available since
// Docker 1.8.
type Mount struct {
Name string
Source string
Destination string
Driver string
Mode string
RW bool
}
// LogConfig defines the log driver type and the configuration for it.
type LogConfig struct {
Type string `json:"Type,omitempty" yaml:"Type,omitempty" toml:"Type,omitempty"`
Config map[string]string `json:"Config,omitempty" yaml:"Config,omitempty" toml:"Config,omitempty"`
}
// ULimit defines system-wide resource limitations This can help a lot in
// system administration, e.g. when a user starts too many processes and
// therefore makes the system unresponsive for other users.
type ULimit struct {
Name string `json:"Name,omitempty" yaml:"Name,omitempty" toml:"Name,omitempty"`
Soft int64 `json:"Soft,omitempty" yaml:"Soft,omitempty" toml:"Soft,omitempty"`
Hard int64 `json:"Hard,omitempty" yaml:"Hard,omitempty" toml:"Hard,omitempty"`
}
// SwarmNode containers information about which Swarm node the container is on.
type SwarmNode struct {
ID string `json:"ID,omitempty" yaml:"ID,omitempty" toml:"ID,omitempty"`
IP string `json:"IP,omitempty" yaml:"IP,omitempty" toml:"IP,omitempty"`
Addr string `json:"Addr,omitempty" yaml:"Addr,omitempty" toml:"Addr,omitempty"`
Name string `json:"Name,omitempty" yaml:"Name,omitempty" toml:"Name,omitempty"`
CPUs int64 `json:"CPUs,omitempty" yaml:"CPUs,omitempty" toml:"CPUs,omitempty"`
Memory int64 `json:"Memory,omitempty" yaml:"Memory,omitempty" toml:"Memory,omitempty"`
Labels map[string]string `json:"Labels,omitempty" yaml:"Labels,omitempty" toml:"Labels,omitempty"`
}
// GraphDriver contains information about the GraphDriver used by the
// container.
type GraphDriver struct {
Name string `json:"Name,omitempty" yaml:"Name,omitempty" toml:"Name,omitempty"`
Data map[string]string `json:"Data,omitempty" yaml:"Data,omitempty" toml:"Data,omitempty"`
}
// HealthConfig holds configuration settings for the HEALTHCHECK feature
//
// It has been added in the version 1.24 of the Docker API, available since
// Docker 1.12.
type HealthConfig struct {
// Test is the test to perform to check that the container is healthy.
// An empty slice means to inherit the default.
// The options are:
// {} : inherit healthcheck
// {"NONE"} : disable healthcheck
// {"CMD", args...} : exec arguments directly
// {"CMD-SHELL", command} : run command with system's default shell
Test []string `json:"Test,omitempty" yaml:"Test,omitempty" toml:"Test,omitempty"`
// Zero means to inherit. Durations are expressed as integer nanoseconds.
Interval time.Duration `json:"Interval,omitempty" yaml:"Interval,omitempty" toml:"Interval,omitempty"` // Interval is the time to wait between checks.
Timeout time.Duration `json:"Timeout,omitempty" yaml:"Timeout,omitempty" toml:"Timeout,omitempty"` // Timeout is the time to wait before considering the check to have hung.
StartPeriod time.Duration `json:"StartPeriod,omitempty" yaml:"StartPeriod,omitempty" toml:"StartPeriod,omitempty"` // The start period for the container to initialize before the retries starts to count down.
// Retries is the number of consecutive failures needed to consider a container as unhealthy.
// Zero means inherit.
Retries int `json:"Retries,omitempty" yaml:"Retries,omitempty" toml:"Retries,omitempty"`
}
// Container is the type encompasing everything about a container - its config,
// hostconfig, etc.
type Container struct {
ID string `json:"Id" yaml:"Id" toml:"Id"`
Created time.Time `json:"Created,omitempty" yaml:"Created,omitempty" toml:"Created,omitempty"`
Path string `json:"Path,omitempty" yaml:"Path,omitempty" toml:"Path,omitempty"`
Args []string `json:"Args,omitempty" yaml:"Args,omitempty" toml:"Args,omitempty"`
Config *Config `json:"Config,omitempty" yaml:"Config,omitempty" toml:"Config,omitempty"`
State State `json:"State,omitempty" yaml:"State,omitempty" toml:"State,omitempty"`
Image string `json:"Image,omitempty" yaml:"Image,omitempty" toml:"Image,omitempty"`
Node *SwarmNode `json:"Node,omitempty" yaml:"Node,omitempty" toml:"Node,omitempty"`
NetworkSettings *NetworkSettings `json:"NetworkSettings,omitempty" yaml:"NetworkSettings,omitempty" toml:"NetworkSettings,omitempty"`
SysInitPath string `json:"SysInitPath,omitempty" yaml:"SysInitPath,omitempty" toml:"SysInitPath,omitempty"`
ResolvConfPath string `json:"ResolvConfPath,omitempty" yaml:"ResolvConfPath,omitempty" toml:"ResolvConfPath,omitempty"`
HostnamePath string `json:"HostnamePath,omitempty" yaml:"HostnamePath,omitempty" toml:"HostnamePath,omitempty"`
HostsPath string `json:"HostsPath,omitempty" yaml:"HostsPath,omitempty" toml:"HostsPath,omitempty"`
LogPath string `json:"LogPath,omitempty" yaml:"LogPath,omitempty" toml:"LogPath,omitempty"`
Name string `json:"Name,omitempty" yaml:"Name,omitempty" toml:"Name,omitempty"`
Driver string `json:"Driver,omitempty" yaml:"Driver,omitempty" toml:"Driver,omitempty"`
Mounts []Mount `json:"Mounts,omitempty" yaml:"Mounts,omitempty" toml:"Mounts,omitempty"`
Volumes map[string]string `json:"Volumes,omitempty" yaml:"Volumes,omitempty" toml:"Volumes,omitempty"`
VolumesRW map[string]bool `json:"VolumesRW,omitempty" yaml:"VolumesRW,omitempty" toml:"VolumesRW,omitempty"`
HostConfig *HostConfig `json:"HostConfig,omitempty" yaml:"HostConfig,omitempty" toml:"HostConfig,omitempty"`
ExecIDs []string `json:"ExecIDs,omitempty" yaml:"ExecIDs,omitempty" toml:"ExecIDs,omitempty"`
GraphDriver *GraphDriver `json:"GraphDriver,omitempty" yaml:"GraphDriver,omitempty" toml:"GraphDriver,omitempty"`
RestartCount int `json:"RestartCount,omitempty" yaml:"RestartCount,omitempty" toml:"RestartCount,omitempty"`
AppArmorProfile string `json:"AppArmorProfile,omitempty" yaml:"AppArmorProfile,omitempty" toml:"AppArmorProfile,omitempty"`
}
// UpdateContainerOptions specify parameters to the UpdateContainer function.
//
// See https://goo.gl/Y6fXUy for more details.
type UpdateContainerOptions struct {
BlkioWeight int `json:"BlkioWeight"`
CPUShares int `json:"CpuShares"`
CPUPeriod int `json:"CpuPeriod"`
CPURealtimePeriod int64 `json:"CpuRealtimePeriod"`
CPURealtimeRuntime int64 `json:"CpuRealtimeRuntime"`
CPUQuota int `json:"CpuQuota"`
CpusetCpus string `json:"CpusetCpus"`
CpusetMems string `json:"CpusetMems"`
Memory int `json:"Memory"`
MemorySwap int `json:"MemorySwap"`
MemoryReservation int `json:"MemoryReservation"`
KernelMemory int `json:"KernelMemory"`
RestartPolicy RestartPolicy `json:"RestartPolicy,omitempty"`
Context context.Context
}
// UpdateContainer updates the container at ID with the options
//
// See https://goo.gl/Y6fXUy for more details.
func (c *Client) UpdateContainer(id string, opts UpdateContainerOptions) error {
resp, err := c.do("POST", fmt.Sprintf("/containers/"+id+"/update"), doOptions{
data: opts,
forceJSON: true,
context: opts.Context,
})
if err != nil {
return err
}
defer resp.Body.Close()
return nil
}
// RenameContainerOptions specify parameters to the RenameContainer function.
//
// See https://goo.gl/46inai for more details.
type RenameContainerOptions struct {
// ID of container to rename
ID string `qs:"-"`
// New name
Name string `json:"name,omitempty" yaml:"name,omitempty"`
Context context.Context
}
// RenameContainer updates and existing containers name
//
// See https://goo.gl/46inai for more details.
func (c *Client) RenameContainer(opts RenameContainerOptions) error {
resp, err := c.do("POST", fmt.Sprintf("/containers/"+opts.ID+"/rename?%s", queryString(opts)), doOptions{
context: opts.Context,
})
if err != nil {
return err
}
resp.Body.Close()
return nil
}
// InspectContainer returns information about a container by its ID.
//
// See https://goo.gl/FaI5JT for more details.
func (c *Client) InspectContainer(id string) (*Container, error) {
return c.inspectContainer(id, doOptions{})
}
// InspectContainerWithContext returns information about a container by its ID.
// The context object can be used to cancel the inspect request.
//
// See https://goo.gl/FaI5JT for more details.
func (c *Client) InspectContainerWithContext(id string, ctx context.Context) (*Container, error) {
return c.inspectContainer(id, doOptions{context: ctx})
}
func (c *Client) inspectContainer(id string, opts doOptions) (*Container, error) {
path := "/containers/" + id + "/json"
resp, err := c.do("GET", path, opts)
if err != nil {
if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound {
return nil, &NoSuchContainer{ID: id}
}
return nil, err
}
defer resp.Body.Close()
var container Container
if err := json.NewDecoder(resp.Body).Decode(&container); err != nil {
return nil, err
}
return &container, nil
}
// ContainerChanges returns changes in the filesystem of the given container.
//
// See https://goo.gl/15KKzh for more details.
func (c *Client) ContainerChanges(id string) ([]Change, error) {
path := "/containers/" + id + "/changes"
resp, err := c.do("GET", path, doOptions{})
if err != nil {
if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound {
return nil, &NoSuchContainer{ID: id}
}
return nil, err
}
defer resp.Body.Close()
var changes []Change
if err := json.NewDecoder(resp.Body).Decode(&changes); err != nil {
return nil, err
}
return changes, nil
}
// CreateContainerOptions specify parameters to the CreateContainer function.
//
// See https://goo.gl/tyzwVM for more details.
type CreateContainerOptions struct {
Name string
Config *Config `qs:"-"`
HostConfig *HostConfig `qs:"-"`
NetworkingConfig *NetworkingConfig `qs:"-"`
Context context.Context
}
// CreateContainer creates a new container, returning the container instance,
// or an error in case of failure.
//
// The returned container instance contains only the container ID. To get more
// details about the container after creating it, use InspectContainer.
//
// See https://goo.gl/tyzwVM for more details.
func (c *Client) CreateContainer(opts CreateContainerOptions) (*Container, error) {
path := "/containers/create?" + queryString(opts)
resp, err := c.do(
"POST",
path,
doOptions{
data: struct {
*Config
HostConfig *HostConfig `json:"HostConfig,omitempty" yaml:"HostConfig,omitempty" toml:"HostConfig,omitempty"`
NetworkingConfig *NetworkingConfig `json:"NetworkingConfig,omitempty" yaml:"NetworkingConfig,omitempty" toml:"NetworkingConfig,omitempty"`
}{
opts.Config,
opts.HostConfig,
opts.NetworkingConfig,
},
context: opts.Context,
},
)
if e, ok := err.(*Error); ok {
if e.Status == http.StatusNotFound {
return nil, ErrNoSuchImage
}
if e.Status == http.StatusConflict {
return nil, ErrContainerAlreadyExists
}
// Workaround for 17.09 bug returning 400 instead of 409.
// See https://github.com/moby/moby/issues/35021
if e.Status == http.StatusBadRequest && strings.Contains(e.Message, "Conflict.") {
return nil, ErrContainerAlreadyExists
}
}
if err != nil {
return nil, err
}
defer resp.Body.Close()
var container Container
if err := json.NewDecoder(resp.Body).Decode(&container); err != nil {
return nil, err
}
container.Name = opts.Name
return &container, nil
}
// KeyValuePair is a type for generic key/value pairs as used in the Lxc
// configuration
type KeyValuePair struct {
Key string `json:"Key,omitempty" yaml:"Key,omitempty" toml:"Key,omitempty"`
Value string `json:"Value,omitempty" yaml:"Value,omitempty" toml:"Value,omitempty"`
}
// RestartPolicy represents the policy for automatically restarting a container.
//
// Possible values are:
//
// - always: the docker daemon will always restart the container
// - on-failure: the docker daemon will restart the container on failures, at
// most MaximumRetryCount times
// - unless-stopped: the docker daemon will always restart the container except
// when user has manually stopped the container
// - no: the docker daemon will not restart the container automatically
type RestartPolicy struct {
Name string `json:"Name,omitempty" yaml:"Name,omitempty" toml:"Name,omitempty"`
MaximumRetryCount int `json:"MaximumRetryCount,omitempty" yaml:"MaximumRetryCount,omitempty" toml:"MaximumRetryCount,omitempty"`
}
// AlwaysRestart returns a restart policy that tells the Docker daemon to
// always restart the container.
func AlwaysRestart() RestartPolicy {
return RestartPolicy{Name: "always"}
}
// RestartOnFailure returns a restart policy that tells the Docker daemon to
// restart the container on failures, trying at most maxRetry times.
func RestartOnFailure(maxRetry int) RestartPolicy {
return RestartPolicy{Name: "on-failure", MaximumRetryCount: maxRetry}
}
// RestartUnlessStopped returns a restart policy that tells the Docker daemon to
// always restart the container except when user has manually stopped the container.
func RestartUnlessStopped() RestartPolicy {
return RestartPolicy{Name: "unless-stopped"}
}
// NeverRestart returns a restart policy that tells the Docker daemon to never
// restart the container on failures.
func NeverRestart() RestartPolicy {
return RestartPolicy{Name: "no"}
}
// Device represents a device mapping between the Docker host and the
// container.
type Device struct {
PathOnHost string `json:"PathOnHost,omitempty" yaml:"PathOnHost,omitempty" toml:"PathOnHost,omitempty"`
PathInContainer string `json:"PathInContainer,omitempty" yaml:"PathInContainer,omitempty" toml:"PathInContainer,omitempty"`
CgroupPermissions string `json:"CgroupPermissions,omitempty" yaml:"CgroupPermissions,omitempty" toml:"CgroupPermissions,omitempty"`
}
// BlockWeight represents a relative device weight for an individual device inside
// of a container
type BlockWeight struct {
Path string `json:"Path,omitempty"`
Weight string `json:"Weight,omitempty"`
}
// BlockLimit represents a read/write limit in IOPS or Bandwidth for a device
// inside of a container
type BlockLimit struct {
Path string `json:"Path,omitempty"`
Rate int64 `json:"Rate,omitempty"`
}
// HostConfig contains the container options related to starting a container on
// a given host
type HostConfig struct {
Binds []string `json:"Binds,omitempty" yaml:"Binds,omitempty" toml:"Binds,omitempty"`
CapAdd []string `json:"CapAdd,omitempty" yaml:"CapAdd,omitempty" toml:"CapAdd,omitempty"`
CapDrop []string `json:"CapDrop,omitempty" yaml:"CapDrop,omitempty" toml:"CapDrop,omitempty"`
GroupAdd []string `json:"GroupAdd,omitempty" yaml:"GroupAdd,omitempty" toml:"GroupAdd,omitempty"`
ContainerIDFile string `json:"ContainerIDFile,omitempty" yaml:"ContainerIDFile,omitempty" toml:"ContainerIDFile,omitempty"`
LxcConf []KeyValuePair `json:"LxcConf,omitempty" yaml:"LxcConf,omitempty" toml:"LxcConf,omitempty"`
PortBindings map[Port][]PortBinding `json:"PortBindings,omitempty" yaml:"PortBindings,omitempty" toml:"PortBindings,omitempty"`
Links []string `json:"Links,omitempty" yaml:"Links,omitempty" toml:"Links,omitempty"`
DNS []string `json:"Dns,omitempty" yaml:"Dns,omitempty" toml:"Dns,omitempty"` // For Docker API v1.10 and above only
DNSOptions []string `json:"DnsOptions,omitempty" yaml:"DnsOptions,omitempty" toml:"DnsOptions,omitempty"`
DNSSearch []string `json:"DnsSearch,omitempty" yaml:"DnsSearch,omitempty" toml:"DnsSearch,omitempty"`
ExtraHosts []string `json:"ExtraHosts,omitempty" yaml:"ExtraHosts,omitempty" toml:"ExtraHosts,omitempty"`
VolumesFrom []string `json:"VolumesFrom,omitempty" yaml:"VolumesFrom,omitempty" toml:"VolumesFrom,omitempty"`
UsernsMode string `json:"UsernsMode,omitempty" yaml:"UsernsMode,omitempty" toml:"UsernsMode,omitempty"`
NetworkMode string `json:"NetworkMode,omitempty" yaml:"NetworkMode,omitempty" toml:"NetworkMode,omitempty"`
IpcMode string `json:"IpcMode,omitempty" yaml:"IpcMode,omitempty" toml:"IpcMode,omitempty"`
PidMode string `json:"PidMode,omitempty" yaml:"PidMode,omitempty" toml:"PidMode,omitempty"`
UTSMode string `json:"UTSMode,omitempty" yaml:"UTSMode,omitempty" toml:"UTSMode,omitempty"`
RestartPolicy RestartPolicy `json:"RestartPolicy,omitempty" yaml:"RestartPolicy,omitempty" toml:"RestartPolicy,omitempty"`
Devices []Device `json:"Devices,omitempty" yaml:"Devices,omitempty" toml:"Devices,omitempty"`
DeviceCgroupRules []string `json:"DeviceCgroupRules,omitempty" yaml:"DeviceCgroupRules,omitempty" toml:"DeviceCgroupRules,omitempty"`
LogConfig LogConfig `json:"LogConfig,omitempty" yaml:"LogConfig,omitempty" toml:"LogConfig,omitempty"`
SecurityOpt []string `json:"SecurityOpt,omitempty" yaml:"SecurityOpt,omitempty" toml:"SecurityOpt,omitempty"`
Cgroup string `json:"Cgroup,omitempty" yaml:"Cgroup,omitempty" toml:"Cgroup,omitempty"`
CgroupParent string `json:"CgroupParent,omitempty" yaml:"CgroupParent,omitempty" toml:"CgroupParent,omitempty"`
Memory int64 `json:"Memory,omitempty" yaml:"Memory,omitempty" toml:"Memory,omitempty"`
MemoryReservation int64 `json:"MemoryReservation,omitempty" yaml:"MemoryReservation,omitempty" toml:"MemoryReservation,omitempty"`
KernelMemory int64 `json:"KernelMemory,omitempty" yaml:"KernelMemory,omitempty" toml:"KernelMemory,omitempty"`
MemorySwap int64 `json:"MemorySwap,omitempty" yaml:"MemorySwap,omitempty" toml:"MemorySwap,omitempty"`
MemorySwappiness int64 `json:"MemorySwappiness,omitempty" yaml:"MemorySwappiness,omitempty" toml:"MemorySwappiness,omitempty"`
CPUShares int64 `json:"CpuShares,omitempty" yaml:"CpuShares,omitempty" toml:"CpuShares,omitempty"`
CPUSet string `json:"Cpuset,omitempty" yaml:"Cpuset,omitempty" toml:"Cpuset,omitempty"`
CPUSetCPUs string `json:"CpusetCpus,omitempty" yaml:"CpusetCpus,omitempty" toml:"CpusetCpus,omitempty"`
CPUSetMEMs string `json:"CpusetMems,omitempty" yaml:"CpusetMems,omitempty" toml:"CpusetMems,omitempty"`
CPUQuota int64 `json:"CpuQuota,omitempty" yaml:"CpuQuota,omitempty" toml:"CpuQuota,omitempty"`
CPUPeriod int64 `json:"CpuPeriod,omitempty" yaml:"CpuPeriod,omitempty" toml:"CpuPeriod,omitempty"`
CPURealtimePeriod int64 `json:"CpuRealtimePeriod,omitempty" yaml:"CpuRealtimePeriod,omitempty" toml:"CpuRealtimePeriod,omitempty"`
CPURealtimeRuntime int64 `json:"CpuRealtimeRuntime,omitempty" yaml:"CpuRealtimeRuntime,omitempty" toml:"CpuRealtimeRuntime,omitempty"`
BlkioWeight int64 `json:"BlkioWeight,omitempty" yaml:"BlkioWeight,omitempty" toml:"BlkioWeight,omitempty"`
BlkioWeightDevice []BlockWeight `json:"BlkioWeightDevice,omitempty" yaml:"BlkioWeightDevice,omitempty" toml:"BlkioWeightDevice,omitempty"`
BlkioDeviceReadBps []BlockLimit `json:"BlkioDeviceReadBps,omitempty" yaml:"BlkioDeviceReadBps,omitempty" toml:"BlkioDeviceReadBps,omitempty"`
BlkioDeviceReadIOps []BlockLimit `json:"BlkioDeviceReadIOps,omitempty" yaml:"BlkioDeviceReadIOps,omitempty" toml:"BlkioDeviceReadIOps,omitempty"`
BlkioDeviceWriteBps []BlockLimit `json:"BlkioDeviceWriteBps,omitempty" yaml:"BlkioDeviceWriteBps,omitempty" toml:"BlkioDeviceWriteBps,omitempty"`
BlkioDeviceWriteIOps []BlockLimit `json:"BlkioDeviceWriteIOps,omitempty" yaml:"BlkioDeviceWriteIOps,omitempty" toml:"BlkioDeviceWriteIOps,omitempty"`
Ulimits []ULimit `json:"Ulimits,omitempty" yaml:"Ulimits,omitempty" toml:"Ulimits,omitempty"`
VolumeDriver string `json:"VolumeDriver,omitempty" yaml:"VolumeDriver,omitempty" toml:"VolumeDriver,omitempty"`
OomScoreAdj int `json:"OomScoreAdj,omitempty" yaml:"OomScoreAdj,omitempty" toml:"OomScoreAdj,omitempty"`
PidsLimit int64 `json:"PidsLimit,omitempty" yaml:"PidsLimit,omitempty" toml:"PidsLimit,omitempty"`
ShmSize int64 `json:"ShmSize,omitempty" yaml:"ShmSize,omitempty" toml:"ShmSize,omitempty"`
Tmpfs map[string]string `json:"Tmpfs,omitempty" yaml:"Tmpfs,omitempty" toml:"Tmpfs,omitempty"`
Privileged bool `json:"Privileged,omitempty" yaml:"Privileged,omitempty" toml:"Privileged,omitempty"`
PublishAllPorts bool `json:"PublishAllPorts,omitempty" yaml:"PublishAllPorts,omitempty" toml:"PublishAllPorts,omitempty"`
ReadonlyRootfs bool `json:"ReadonlyRootfs,omitempty" yaml:"ReadonlyRootfs,omitempty" toml:"ReadonlyRootfs,omitempty"`
OOMKillDisable bool `json:"OomKillDisable,omitempty" yaml:"OomKillDisable,omitempty" toml:"OomKillDisable,omitempty"`
AutoRemove bool `json:"AutoRemove,omitempty" yaml:"AutoRemove,omitempty" toml:"AutoRemove,omitempty"`
StorageOpt map[string]string `json:"StorageOpt,omitempty" yaml:"StorageOpt,omitempty" toml:"StorageOpt,omitempty"`
Sysctls map[string]string `json:"Sysctls,omitempty" yaml:"Sysctls,omitempty" toml:"Sysctls,omitempty"`
CPUCount int64 `json:"CpuCount,omitempty" yaml:"CpuCount,omitempty"`
CPUPercent int64 `json:"CpuPercent,omitempty" yaml:"CpuPercent,omitempty"`
IOMaximumBandwidth int64 `json:"IOMaximumBandwidth,omitempty" yaml:"IOMaximumBandwidth,omitempty"`
IOMaximumIOps int64 `json:"IOMaximumIOps,omitempty" yaml:"IOMaximumIOps,omitempty"`
Mounts []HostMount `json:"Mounts,omitempty" yaml:"Mounts,omitempty" toml:"Mounts,omitempty"`
Init bool `json:",omitempty" yaml:",omitempty"`
}
// NetworkingConfig represents the container's networking configuration for each of its interfaces
// Carries the networking configs specified in the `docker run` and `docker network connect` commands
type NetworkingConfig struct {
EndpointsConfig map[string]*EndpointConfig `json:"EndpointsConfig" yaml:"EndpointsConfig" toml:"EndpointsConfig"` // Endpoint configs for each connecting network
}
// StartContainer starts a container, returning an error in case of failure.
//
// Passing the HostConfig to this method has been deprecated in Docker API 1.22
// (Docker Engine 1.10.x) and totally removed in Docker API 1.24 (Docker Engine
// 1.12.x). The client will ignore the parameter when communicating with Docker
// API 1.24 or greater.
//
// See https://goo.gl/fbOSZy for more details.
func (c *Client) StartContainer(id string, hostConfig *HostConfig) error {
return c.startContainer(id, hostConfig, doOptions{})
}
// StartContainerWithContext starts a container, returning an error in case of
// failure. The context can be used to cancel the outstanding start container
// request.
//
// Passing the HostConfig to this method has been deprecated in Docker API 1.22
// (Docker Engine 1.10.x) and totally removed in Docker API 1.24 (Docker Engine
// 1.12.x). The client will ignore the parameter when communicating with Docker
// API 1.24 or greater.
//
// See https://goo.gl/fbOSZy for more details.
func (c *Client) StartContainerWithContext(id string, hostConfig *HostConfig, ctx context.Context) error {
return c.startContainer(id, hostConfig, doOptions{context: ctx})
}
func (c *Client) startContainer(id string, hostConfig *HostConfig, opts doOptions) error {
path := "/containers/" + id + "/start"
c.checkAPIVersion()
if c.serverAPIVersion != nil && c.serverAPIVersion.LessThan(apiVersion124) {
opts.data = hostConfig
opts.forceJSON = true
}
resp, err := c.do("POST", path, opts)
if err != nil {
if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound {
return &NoSuchContainer{ID: id, Err: err}
}
return err
}
defer resp.Body.Close()
if resp.StatusCode == http.StatusNotModified {
return &ContainerAlreadyRunning{ID: id}
}
return nil
}
// StopContainer stops a container, killing it after the given timeout (in
// seconds).
//
// See https://goo.gl/R9dZcV for more details.
func (c *Client) StopContainer(id string, timeout uint) error {
return c.stopContainer(id, timeout, doOptions{})
}
// StopContainerWithContext stops a container, killing it after the given
// timeout (in seconds). The context can be used to cancel the stop
// container request.
//
// See https://goo.gl/R9dZcV for more details.
func (c *Client) StopContainerWithContext(id string, timeout uint, ctx context.Context) error {
return c.stopContainer(id, timeout, doOptions{context: ctx})
}
func (c *Client) stopContainer(id string, timeout uint, opts doOptions) error {
path := fmt.Sprintf("/containers/%s/stop?t=%d", id, timeout)
resp, err := c.do("POST", path, opts)
if err != nil {
if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound {
return &NoSuchContainer{ID: id}
}
return err
}
defer resp.Body.Close()
if resp.StatusCode == http.StatusNotModified {
return &ContainerNotRunning{ID: id}
}
return nil
}
// RestartContainer stops a container, killing it after the given timeout (in
// seconds), during the stop process.
//
// See https://goo.gl/MrAKQ5 for more details.
func (c *Client) RestartContainer(id string, timeout uint) error {
path := fmt.Sprintf("/containers/%s/restart?t=%d", id, timeout)
resp, err := c.do("POST", path, doOptions{})
if err != nil {
if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound {
return &NoSuchContainer{ID: id}
}
return err
}
resp.Body.Close()
return nil
}
// PauseContainer pauses the given container.
//
// See https://goo.gl/D1Yaii for more details.
func (c *Client) PauseContainer(id string) error {
path := fmt.Sprintf("/containers/%s/pause", id)
resp, err := c.do("POST", path, doOptions{})
if err != nil {
if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound {
return &NoSuchContainer{ID: id}
}
return err
}
resp.Body.Close()
return nil
}
// UnpauseContainer unpauses the given container.
//
// See https://goo.gl/sZ2faO for more details.
func (c *Client) UnpauseContainer(id string) error {
path := fmt.Sprintf("/containers/%s/unpause", id)
resp, err := c.do("POST", path, doOptions{})
if err != nil {
if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound {
return &NoSuchContainer{ID: id}
}
return err
}
resp.Body.Close()
return nil
}
// TopResult represents the list of processes running in a container, as
// returned by /containers/<id>/top.
//
// See https://goo.gl/FLwpPl for more details.
type TopResult struct {
Titles []string
Processes [][]string
}
// TopContainer returns processes running inside a container
//
// See https://goo.gl/FLwpPl for more details.
func (c *Client) TopContainer(id string, psArgs string) (TopResult, error) {
var args string
var result TopResult
if psArgs != "" {
args = fmt.Sprintf("?ps_args=%s", psArgs)
}
path := fmt.Sprintf("/containers/%s/top%s", id, args)
resp, err := c.do("GET", path, doOptions{})
if err != nil {
if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound {
return result, &NoSuchContainer{ID: id}
}
return result, err
}
defer resp.Body.Close()
err = json.NewDecoder(resp.Body).Decode(&result)
return result, err
}
// Stats represents container statistics, returned by /containers/<id>/stats.
//
// See https://goo.gl/Dk3Xio for more details.
type Stats struct {
Read time.Time `json:"read,omitempty" yaml:"read,omitempty" toml:"read,omitempty"`
PreRead time.Time `json:"preread,omitempty" yaml:"preread,omitempty" toml:"preread,omitempty"`
NumProcs uint32 `json:"num_procs" yaml:"num_procs" toml:"num_procs"`
PidsStats struct {
Current uint64 `json:"current,omitempty" yaml:"current,omitempty"`
} `json:"pids_stats,omitempty" yaml:"pids_stats,omitempty" toml:"pids_stats,omitempty"`
Network NetworkStats `json:"network,omitempty" yaml:"network,omitempty" toml:"network,omitempty"`
Networks map[string]NetworkStats `json:"networks,omitempty" yaml:"networks,omitempty" toml:"networks,omitempty"`
MemoryStats struct {
Stats struct {
TotalPgmafault uint64 `json:"total_pgmafault,omitempty" yaml:"total_pgmafault,omitempty" toml:"total_pgmafault,omitempty"`
Cache uint64 `json:"cache,omitempty" yaml:"cache,omitempty" toml:"cache,omitempty"`
MappedFile uint64 `json:"mapped_file,omitempty" yaml:"mapped_file,omitempty" toml:"mapped_file,omitempty"`
TotalInactiveFile uint64 `json:"total_inactive_file,omitempty" yaml:"total_inactive_file,omitempty" toml:"total_inactive_file,omitempty"`
Pgpgout uint64 `json:"pgpgout,omitempty" yaml:"pgpgout,omitempty" toml:"pgpgout,omitempty"`
Rss uint64 `json:"rss,omitempty" yaml:"rss,omitempty" toml:"rss,omitempty"`
TotalMappedFile uint64 `json:"total_mapped_file,omitempty" yaml:"total_mapped_file,omitempty" toml:"total_mapped_file,omitempty"`
Writeback uint64 `json:"writeback,omitempty" yaml:"writeback,omitempty" toml:"writeback,omitempty"`
Unevictable uint64 `json:"unevictable,omitempty" yaml:"unevictable,omitempty" toml:"unevictable,omitempty"`
Pgpgin uint64 `json:"pgpgin,omitempty" yaml:"pgpgin,omitempty" toml:"pgpgin,omitempty"`
TotalUnevictable uint64 `json:"total_unevictable,omitempty" yaml:"total_unevictable,omitempty" toml:"total_unevictable,omitempty"`
Pgmajfault uint64 `json:"pgmajfault,omitempty" yaml:"pgmajfault,omitempty" toml:"pgmajfault,omitempty"`
TotalRss uint64 `json:"total_rss,omitempty" yaml:"total_rss,omitempty" toml:"total_rss,omitempty"`
TotalRssHuge uint64 `json:"total_rss_huge,omitempty" yaml:"total_rss_huge,omitempty" toml:"total_rss_huge,omitempty"`
TotalWriteback uint64 `json:"total_writeback,omitempty" yaml:"total_writeback,omitempty" toml:"total_writeback,omitempty"`
TotalInactiveAnon uint64 `json:"total_inactive_anon,omitempty" yaml:"total_inactive_anon,omitempty" toml:"total_inactive_anon,omitempty"`
RssHuge uint64 `json:"rss_huge,omitempty" yaml:"rss_huge,omitempty" toml:"rss_huge,omitempty"`
HierarchicalMemoryLimit uint64 `json:"hierarchical_memory_limit,omitempty" yaml:"hierarchical_memory_limit,omitempty" toml:"hierarchical_memory_limit,omitempty"`
TotalPgfault uint64 `json:"total_pgfault,omitempty" yaml:"total_pgfault,omitempty" toml:"total_pgfault,omitempty"`
TotalActiveFile uint64 `json:"total_active_file,omitempty" yaml:"total_active_file,omitempty" toml:"total_active_file,omitempty"`
ActiveAnon uint64 `json:"active_anon,omitempty" yaml:"active_anon,omitempty" toml:"active_anon,omitempty"`
TotalActiveAnon uint64 `json:"total_active_anon,omitempty" yaml:"total_active_anon,omitempty" toml:"total_active_anon,omitempty"`
TotalPgpgout uint64 `json:"total_pgpgout,omitempty" yaml:"total_pgpgout,omitempty" toml:"total_pgpgout,omitempty"`