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registry_harbor.go
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/
registry_harbor.go
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// Copyright © 2023 Horizoncd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package v2
import (
"context"
"crypto/tls"
"fmt"
"io"
"net/http"
"net/url"
"path"
"strconv"
"strings"
"time"
"github.com/hashicorp/go-retryablehttp"
"github.com/horizoncd/horizon/core/common"
herrors "github.com/horizoncd/horizon/core/errors"
"github.com/horizoncd/horizon/pkg/cluster/registry"
"github.com/horizoncd/horizon/pkg/cluster/registry/harbor"
perror "github.com/horizoncd/horizon/pkg/errors"
"github.com/horizoncd/horizon/pkg/util/wlog"
)
const kind = "harbor"
// default params
const (
_backoffDuration = 1 * time.Second
_retry = 3
_timeout = 4 * time.Second
)
func init() {
registry.Register(kind, NewHarborRegistry)
}
// Registry implement Registry
type Registry struct {
// harbor server address
server string
// harbor token
token string
// path prefix
path string
// http client
client *http.Client
// retryableClient retryable client
retryableClient *retryablehttp.Client
}
func NewHarborRegistry(config *registry.Config) (registry.Registry, error) {
transport := http.Transport{
TLSClientConfig: &tls.Config{
InsecureSkipVerify: config.InsecureSkipVerify,
},
}
harborRegistry := &Registry{
server: config.Server,
token: config.Token,
path: config.Path,
client: &http.Client{
Transport: &transport,
},
retryableClient: &retryablehttp.Client{
HTTPClient: &http.Client{
Transport: &transport,
Timeout: _timeout,
},
RetryMax: _retry,
CheckRetry: retryablehttp.DefaultRetryPolicy,
Backoff: func(min, max time.Duration, attemptNum int, resp *http.Response) time.Duration {
// wait for this duration if failed
return _backoffDuration
},
},
}
return harborRegistry, nil
}
func (h *Registry) DeleteImage(ctx context.Context, appName string, clusterName string) (err error) {
const op = "registry: delete repository"
defer wlog.Start(ctx, op).StopPrint()
link := path.Join("/api/v2.0/projects", h.path, "repositories",
url.PathEscape(path.Join(appName, clusterName)))
link = fmt.Sprintf("%s%s", strings.TrimSuffix(h.server, "/"), link)
resp, err := h.sendHTTPRequest(ctx, http.MethodDelete, link, nil, true, "deleteRepository")
if err != nil {
return err
}
defer func() { _ = resp.Body.Close() }()
if resp.StatusCode == http.StatusOK || resp.StatusCode == http.StatusNotFound {
return nil
}
return perror.Wrap(herrors.ErrHTTPRespNotAsExpected, common.Response(ctx, resp))
}
func (h *Registry) sendHTTPRequest(ctx context.Context, method string,
url string, body io.Reader, retry bool, operation string) (*http.Response, error) {
begin := time.Now()
var rsp *http.Response
var err error
defer func() {
if rsp != nil {
duration := time.Since(begin)
server := strings.TrimPrefix(strings.TrimPrefix(h.server, "http://"), "https://")
statuscode := strconv.Itoa(rsp.StatusCode)
harbor.Observe(server, method, statuscode, operation, duration)
}
}()
req, err := http.NewRequestWithContext(ctx, method, url, body)
if err != nil {
return nil, perror.Wrap(herrors.ErrHTTPRequestFailed, err.Error())
}
req.Header.Set("Content-Type", "application/json; charset=utf-8")
req.Header.Set("Authorization", fmt.Sprintf("Basic %s", h.token))
if !retry {
rsp, err = h.client.Do(req)
if err != nil {
return nil, perror.Wrap(herrors.ErrHTTPRequestFailed, err.Error())
}
return rsp, nil
}
r, err := retryablehttp.FromRequest(req)
if err != nil {
return nil, perror.Wrap(herrors.ErrHTTPRequestFailed, err.Error())
}
rsp, err = h.retryableClient.Do(r)
if err != nil {
return nil, perror.Wrap(herrors.ErrHTTPRequestFailed, err.Error())
}
return rsp, nil
}