mirror of
https://github.com/woodpecker-ci/woodpecker.git
synced 2024-10-04 17:31:59 +00:00
381 lines
9.2 KiB
Go
381 lines
9.2 KiB
Go
package dockerclient
|
|
|
|
import (
|
|
"bytes"
|
|
"crypto/tls"
|
|
"encoding/json"
|
|
"errors"
|
|
"fmt"
|
|
"io"
|
|
"io/ioutil"
|
|
"net/http"
|
|
"net/url"
|
|
"strconv"
|
|
"strings"
|
|
"sync/atomic"
|
|
"time"
|
|
)
|
|
|
|
const (
|
|
APIVersion = "v1.15"
|
|
)
|
|
|
|
var (
|
|
ErrNotFound = errors.New("Not found")
|
|
|
|
defaultTimeout = 30 * time.Second
|
|
)
|
|
|
|
type DockerClient struct {
|
|
URL *url.URL
|
|
HTTPClient *http.Client
|
|
TLSConfig *tls.Config
|
|
monitorEvents int32
|
|
}
|
|
|
|
type Error struct {
|
|
StatusCode int
|
|
Status string
|
|
msg string
|
|
}
|
|
|
|
func (e Error) Error() string {
|
|
return fmt.Sprintf("%s: %s", e.Status, e.msg)
|
|
}
|
|
|
|
func NewDockerClient(daemonUrl string, tlsConfig *tls.Config) (*DockerClient, error) {
|
|
return NewDockerClientTimeout(daemonUrl, tlsConfig, time.Duration(defaultTimeout))
|
|
}
|
|
|
|
func NewDockerClientTimeout(daemonUrl string, tlsConfig *tls.Config, timeout time.Duration) (*DockerClient, error) {
|
|
u, err := url.Parse(daemonUrl)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if u.Scheme == "" || u.Scheme == "tcp" {
|
|
if tlsConfig == nil {
|
|
u.Scheme = "http"
|
|
} else {
|
|
u.Scheme = "https"
|
|
}
|
|
}
|
|
httpClient := newHTTPClient(u, tlsConfig, timeout)
|
|
return &DockerClient{u, httpClient, tlsConfig, 0}, nil
|
|
}
|
|
|
|
func (client *DockerClient) doRequest(method string, path string, body []byte, headers map[string]string) ([]byte, error) {
|
|
b := bytes.NewBuffer(body)
|
|
req, err := http.NewRequest(method, client.URL.String()+path, b)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
req.Header.Add("Content-Type", "application/json")
|
|
if headers != nil {
|
|
for header, value := range headers {
|
|
req.Header.Add(header, value)
|
|
}
|
|
}
|
|
resp, err := client.HTTPClient.Do(req)
|
|
if err != nil {
|
|
if !strings.Contains(err.Error(), "connection refused") && client.TLSConfig == nil {
|
|
return nil, fmt.Errorf("%v. Are you trying to connect to a TLS-enabled daemon without TLS?", err)
|
|
}
|
|
return nil, err
|
|
}
|
|
defer resp.Body.Close()
|
|
data, err := ioutil.ReadAll(resp.Body)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if resp.StatusCode == 404 {
|
|
return nil, ErrNotFound
|
|
}
|
|
if resp.StatusCode >= 400 {
|
|
return nil, Error{StatusCode: resp.StatusCode, Status: resp.Status, msg: string(data)}
|
|
}
|
|
return data, nil
|
|
}
|
|
|
|
func (client *DockerClient) Info() (*Info, error) {
|
|
uri := fmt.Sprintf("/%s/info", APIVersion)
|
|
data, err := client.doRequest("GET", uri, nil, nil)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
ret := &Info{}
|
|
err = json.Unmarshal(data, &ret)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return ret, nil
|
|
}
|
|
|
|
func (client *DockerClient) ListContainers(all bool, size bool, filters string) ([]Container, error) {
|
|
argAll := 0
|
|
if all == true {
|
|
argAll = 1
|
|
}
|
|
showSize := 0
|
|
if size == true {
|
|
showSize = 1
|
|
}
|
|
uri := fmt.Sprintf("/%s/containers/json?all=%d&size=%d", APIVersion, argAll, showSize)
|
|
|
|
if filters != "" {
|
|
uri += "&filters=" + filters
|
|
}
|
|
|
|
data, err := client.doRequest("GET", uri, nil, nil)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
ret := []Container{}
|
|
err = json.Unmarshal(data, &ret)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return ret, nil
|
|
}
|
|
|
|
func (client *DockerClient) InspectContainer(id string) (*ContainerInfo, error) {
|
|
uri := fmt.Sprintf("/%s/containers/%s/json", APIVersion, id)
|
|
data, err := client.doRequest("GET", uri, nil, nil)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
info := &ContainerInfo{}
|
|
err = json.Unmarshal(data, info)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return info, nil
|
|
}
|
|
|
|
func (client *DockerClient) CreateContainer(config *ContainerConfig, name string) (string, error) {
|
|
data, err := json.Marshal(config)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
uri := fmt.Sprintf("/%s/containers/create", APIVersion)
|
|
if name != "" {
|
|
v := url.Values{}
|
|
v.Set("name", name)
|
|
uri = fmt.Sprintf("%s?%s", uri, v.Encode())
|
|
}
|
|
data, err = client.doRequest("POST", uri, data, nil)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
result := &RespContainersCreate{}
|
|
err = json.Unmarshal(data, result)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
return result.Id, nil
|
|
}
|
|
|
|
func (client *DockerClient) ContainerLogs(id string, options *LogOptions) (io.ReadCloser, error) {
|
|
v := url.Values{}
|
|
v.Add("follow", strconv.FormatBool(options.Follow))
|
|
v.Add("stdout", strconv.FormatBool(options.Stdout))
|
|
v.Add("stderr", strconv.FormatBool(options.Stderr))
|
|
v.Add("timestamps", strconv.FormatBool(options.Timestamps))
|
|
if options.Tail > 0 {
|
|
v.Add("tail", strconv.FormatInt(options.Tail, 10))
|
|
}
|
|
|
|
uri := fmt.Sprintf("/%s/containers/%s/logs?%s", APIVersion, id, v.Encode())
|
|
req, err := http.NewRequest("GET", client.URL.String()+uri, nil)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
req.Header.Add("Content-Type", "application/json")
|
|
resp, err := client.HTTPClient.Do(req)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return resp.Body, nil
|
|
}
|
|
|
|
func (client *DockerClient) StartContainer(id string, config *HostConfig) error {
|
|
data, err := json.Marshal(config)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
uri := fmt.Sprintf("/%s/containers/%s/start", APIVersion, id)
|
|
_, err = client.doRequest("POST", uri, data, nil)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (client *DockerClient) StopContainer(id string, timeout int) error {
|
|
uri := fmt.Sprintf("/%s/containers/%s/stop?t=%d", APIVersion, id, timeout)
|
|
_, err := client.doRequest("POST", uri, nil, nil)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (client *DockerClient) RestartContainer(id string, timeout int) error {
|
|
uri := fmt.Sprintf("/%s/containers/%s/restart?t=%d", APIVersion, id, timeout)
|
|
_, err := client.doRequest("POST", uri, nil, nil)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (client *DockerClient) KillContainer(id, signal string) error {
|
|
uri := fmt.Sprintf("/%s/containers/%s/kill?signal=%s", APIVersion, id, signal)
|
|
_, err := client.doRequest("POST", uri, nil, nil)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (client *DockerClient) StartMonitorEvents(cb Callback, ec chan error, args ...interface{}) {
|
|
atomic.StoreInt32(&client.monitorEvents, 1)
|
|
go client.getEvents(cb, ec, args...)
|
|
}
|
|
|
|
func (client *DockerClient) getEvents(cb Callback, ec chan error, args ...interface{}) {
|
|
uri := fmt.Sprintf("%s/%s/events", client.URL.String(), APIVersion)
|
|
resp, err := client.HTTPClient.Get(uri)
|
|
if err != nil {
|
|
ec <- err
|
|
return
|
|
}
|
|
defer resp.Body.Close()
|
|
|
|
dec := json.NewDecoder(resp.Body)
|
|
for atomic.LoadInt32(&client.monitorEvents) > 0 {
|
|
var event *Event
|
|
if err := dec.Decode(&event); err != nil {
|
|
ec <- err
|
|
return
|
|
}
|
|
cb(event, ec, args...)
|
|
}
|
|
}
|
|
|
|
func (client *DockerClient) StopAllMonitorEvents() {
|
|
atomic.StoreInt32(&client.monitorEvents, 0)
|
|
}
|
|
|
|
func (client *DockerClient) Version() (*Version, error) {
|
|
uri := fmt.Sprintf("/%s/version", APIVersion)
|
|
data, err := client.doRequest("GET", uri, nil, nil)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
version := &Version{}
|
|
err = json.Unmarshal(data, version)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return version, nil
|
|
}
|
|
|
|
func (client *DockerClient) PullImage(name string, auth *AuthConfig) error {
|
|
v := url.Values{}
|
|
v.Set("fromImage", name)
|
|
uri := fmt.Sprintf("/%s/images/create?%s", APIVersion, v.Encode())
|
|
req, err := http.NewRequest("POST", client.URL.String()+uri, nil)
|
|
if auth != nil {
|
|
req.Header.Add("X-Registry-Auth", auth.encode())
|
|
}
|
|
resp, err := client.HTTPClient.Do(req)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer resp.Body.Close()
|
|
var finalObj map[string]interface{}
|
|
for decoder := json.NewDecoder(resp.Body); err == nil; err = decoder.Decode(&finalObj) {
|
|
}
|
|
if err != io.EOF {
|
|
return err
|
|
}
|
|
if err, ok := finalObj["error"]; ok {
|
|
return fmt.Errorf("%v", err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (client *DockerClient) RemoveContainer(id string, force, volumes bool) error {
|
|
argForce := 0
|
|
argVolumes := 0
|
|
if force == true {
|
|
argForce = 1
|
|
}
|
|
if volumes == true {
|
|
argVolumes = 1
|
|
}
|
|
args := fmt.Sprintf("force=%d&v=%d", argForce, argVolumes)
|
|
uri := fmt.Sprintf("/%s/containers/%s?%s", APIVersion, id, args)
|
|
_, err := client.doRequest("DELETE", uri, nil, nil)
|
|
return err
|
|
}
|
|
|
|
func (client *DockerClient) ListImages() ([]*Image, error) {
|
|
uri := fmt.Sprintf("/%s/images/json", APIVersion)
|
|
data, err := client.doRequest("GET", uri, nil, nil)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
var images []*Image
|
|
if err := json.Unmarshal(data, &images); err != nil {
|
|
return nil, err
|
|
}
|
|
return images, nil
|
|
}
|
|
|
|
func (client *DockerClient) RemoveImage(name string) error {
|
|
uri := fmt.Sprintf("/%s/images/%s", APIVersion, name)
|
|
_, err := client.doRequest("DELETE", uri, nil, nil)
|
|
return err
|
|
}
|
|
|
|
func (client *DockerClient) PauseContainer(id string) error {
|
|
uri := fmt.Sprintf("/%s/containers/%s/pause", APIVersion, id)
|
|
_, err := client.doRequest("POST", uri, nil, nil)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
func (client *DockerClient) UnpauseContainer(id string) error {
|
|
uri := fmt.Sprintf("/%s/containers/%s/unpause", APIVersion, id)
|
|
_, err := client.doRequest("POST", uri, nil, nil)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (client *DockerClient) Exec(config *ExecConfig) (string, error) {
|
|
data, err := json.Marshal(config)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
uri := fmt.Sprintf("/containers/%s/exec", config.Container)
|
|
resp, err := client.doRequest("POST", uri, data, nil)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
var createExecResp struct {
|
|
Id string
|
|
}
|
|
if err = json.Unmarshal(resp, &createExecResp); err != nil {
|
|
return "", err
|
|
}
|
|
uri = fmt.Sprintf("/exec/%s/start", createExecResp.Id)
|
|
resp, err = client.doRequest("POST", uri, data, nil)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
return createExecResp.Id, nil
|
|
}
|