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// Copyright 2017 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"
"net/http"
"net/url"
"strconv"
"github.com/docker/docker/api/types/swarm"
)
// NoSuchConfig is the error returned when a given config does not exist.
type NoSuchConfig struct {
ID string
Err error
}
func (err *NoSuchConfig) Error() string {
if err.Err != nil {
return err.Err.Error()
}
return "No such config: " + err.ID
}
// CreateConfigOptions specify parameters to the CreateConfig function.
//
// See https://goo.gl/KrVjHz for more details.
type CreateConfigOptions struct {
Auth AuthConfiguration `qs:"-"`
swarm.ConfigSpec
Context context.Context
}
// CreateConfig creates a new config, returning the config instance
// or an error in case of failure.
//
// See https://goo.gl/KrVjHz for more details.
func (c *Client) CreateConfig(opts CreateConfigOptions) (*swarm.Config, error) {
headers, err := headersWithAuth(opts.Auth)
if err != nil {
return nil, err
}
path := "/configs/create?" + queryString(opts)
resp, err := c.do(http.MethodPost, path, doOptions{
headers: headers,
data: opts.ConfigSpec,
forceJSON: true,
context: opts.Context,
})
if err != nil {
return nil, err
}
defer resp.Body.Close()
var config swarm.Config
if err := json.NewDecoder(resp.Body).Decode(&config); err != nil {
return nil, err
}
return &config, nil
}
// RemoveConfigOptions encapsulates options to remove a config.
//
// See https://goo.gl/Tqrtya for more details.
type RemoveConfigOptions struct {
ID string `qs:"-"`
Context context.Context
}
// RemoveConfig removes a config, returning an error in case of failure.
//
// See https://goo.gl/Tqrtya for more details.
func (c *Client) RemoveConfig(opts RemoveConfigOptions) error {
path := "/configs/" + opts.ID
resp, err := c.do(http.MethodDelete, path, doOptions{context: opts.Context})
if err != nil {
var e *Error
if errors.As(err, &e) && e.Status == http.StatusNotFound {
return &NoSuchConfig{ID: opts.ID}
}
return err
}
resp.Body.Close()
return nil
}
// UpdateConfigOptions specify parameters to the UpdateConfig function.
//
// See https://goo.gl/wu3MmS for more details.
type UpdateConfigOptions struct {
Auth AuthConfiguration `qs:"-"`
swarm.ConfigSpec
Context context.Context
Version uint64
}
// UpdateConfig updates the config at ID with the options
//
// Only label can be updated
// https://docs.docker.com/engine/api/v1.33/#operation/ConfigUpdate
// See https://goo.gl/wu3MmS for more details.
func (c *Client) UpdateConfig(id string, opts UpdateConfigOptions) error {
headers, err := headersWithAuth(opts.Auth)
if err != nil {
return err
}
params := make(url.Values)
params.Set("version", strconv.FormatUint(opts.Version, 10))
resp, err := c.do(http.MethodPost, "/configs/"+id+"/update?"+params.Encode(), doOptions{
headers: headers,
data: opts.ConfigSpec,
forceJSON: true,
context: opts.Context,
})
if err != nil {
var e *Error
if errors.As(err, &e) && e.Status == http.StatusNotFound {
return &NoSuchConfig{ID: id}
}
return err
}
defer resp.Body.Close()
return nil
}
// InspectConfig returns information about a config by its ID.
//
// See https://goo.gl/dHmr75 for more details.
func (c *Client) InspectConfig(id string) (*swarm.Config, error) {
path := "/configs/" + id
resp, err := c.do(http.MethodGet, path, doOptions{})
if err != nil {
var e *Error
if errors.As(err, &e) && e.Status == http.StatusNotFound {
return nil, &NoSuchConfig{ID: id}
}
return nil, err
}
defer resp.Body.Close()
var config swarm.Config
if err := json.NewDecoder(resp.Body).Decode(&config); err != nil {
return nil, err
}
return &config, nil
}
// ListConfigsOptions specify parameters to the ListConfigs function.
//
// See https://goo.gl/DwvNMd for more details.
type ListConfigsOptions struct {
Filters map[string][]string
Context context.Context
}
// ListConfigs returns a slice of configs matching the given criteria.
//
// See https://goo.gl/DwvNMd for more details.
func (c *Client) ListConfigs(opts ListConfigsOptions) ([]swarm.Config, error) {
path := "/configs?" + queryString(opts)
resp, err := c.do(http.MethodGet, path, doOptions{context: opts.Context})
if err != nil {
return nil, err
}
defer resp.Body.Close()
var configs []swarm.Config
if err := json.NewDecoder(resp.Body).Decode(&configs); err != nil {
return nil, err
}
return configs, nil
}
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