lib: use permanent error instead of context cancellation (#1429)

acme/api/api.go

@@ -2,7 +2,6 @@ package api
 
 import (
 	"bytes"
-	"context"
 	"crypto"
 	"encoding/json"
 	"errors"
@@ -83,8 +82,6 @@ func (a *Core) retrievablePost(uri string, content []byte, response interface{})
 	bo.MaxInterval = 5 * time.Second
 	bo.MaxElapsedTime = 20 * time.Second
 
-	ctx, cancel := context.WithCancel(context.Background())
-
 	var resp *http.Response
 	operation := func() error {
 		var err error
@@ -96,8 +93,7 @@ func (a *Core) retrievablePost(uri string, content []byte, response interface{})
 				return err
 			}
 
-			cancel()
+			return backoff.Permanent(err)
-			return err
 		}
 
 		return nil
@@ -107,7 +103,7 @@ func (a *Core) retrievablePost(uri string, content []byte, response interface{})
 		log.Infof("retry due to: %v", err)
 	}
 
-	err := backoff.RetryNotify(operation, backoff.WithContext(bo, ctx), notify)
+	err := backoff.RetryNotify(operation, bo, notify)
 	if err != nil {
 		return resp, err
 	}

go.mod

@@ -16,7 +16,7 @@ require (
 	github.com/akamai/AkamaiOPEN-edgegrid-golang v1.1.0
 	github.com/aliyun/alibaba-cloud-sdk-go v1.61.976
 	github.com/aws/aws-sdk-go v1.37.27
-	github.com/cenkalti/backoff/v4 v4.1.0
+	github.com/cenkalti/backoff/v4 v4.1.1
 	github.com/cloudflare/cloudflare-go v0.14.0
 	github.com/cpu/goacmedns v0.1.1
 	github.com/dnsimple/dnsimple-go v0.63.0

go.sum

@@ -78,8 +78,8 @@ github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c/go.mod h1:MKsuJm
 github.com/boombuler/barcode v1.0.1-0.20190219062509-6c824513bacc h1:biVzkmvwrH8WK8raXaxBx6fRVTlJILwEwQGL1I/ByEI=
 github.com/boombuler/barcode v1.0.1-0.20190219062509-6c824513bacc/go.mod h1:paBWMcWSl3LHKBqUq+rly7CNSldXjb2rDl3JlRe0mD8=
 github.com/c-bata/go-prompt v0.2.5/go.mod h1:vFnjEGDIIA/Lib7giyE4E9c50Lvl8j0S+7FVlAwDAVw=
-github.com/cenkalti/backoff/v4 v4.1.0 h1:c8LkOFQTzuO0WBM/ae5HdGQuZPfPxp7lqBRwQRm4fSc=
+github.com/cenkalti/backoff/v4 v4.1.1 h1:G2HAfAmvm/GcKan2oOQpBXOd2tT2G57ZnZGWa1PxPBQ=
-github.com/cenkalti/backoff/v4 v4.1.0/go.mod h1:scbssz8iZGpm3xbr14ovlUdkxfGXNInqkPWOWmG2CLw=
+github.com/cenkalti/backoff/v4 v4.1.1/go.mod h1:scbssz8iZGpm3xbr14ovlUdkxfGXNInqkPWOWmG2CLw=
 github.com/census-instrumentation/opencensus-proto v0.2.0/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=

providers/dns/dynu/internal/client.go

@@ -2,7 +2,6 @@ package internal
 
 import (
 	"bytes"
-	"context"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -125,8 +124,6 @@ func (c Client) GetRootDomain(hostname string) (*DNSHostname, error) {
 func (c Client) doRetry(method, uri string, body []byte, data interface{}) error {
 	var resp *http.Response
 
-	ctx, cancel := context.WithCancel(context.Background())
-
 	operation := func() error {
 		var reqBody io.Reader
 		if len(body) > 0 {
@@ -147,8 +144,7 @@ func (c Client) doRetry(method, uri string, body []byte, data interface{}) error
 		}
 
 		if err != nil {
-			cancel()
+			return backoff.Permanent(fmt.Errorf("client error: %w", err))
-			return fmt.Errorf("client error: %w", err)
 		}
 
 		return nil
@@ -161,7 +157,7 @@ func (c Client) doRetry(method, uri string, body []byte, data interface{}) error
 	bo := backoff.NewExponentialBackOff()
 	bo.InitialInterval = 1 * time.Second
 
-	err := backoff.RetryNotify(operation, backoff.WithContext(bo, ctx), notify)
+	err := backoff.RetryNotify(operation, bo, notify)
 	if err != nil {
 		return err
 	}

providers/dns/hostingde/client.go

@@ -2,7 +2,6 @@ package hostingde
 
 import (
 	"bytes"
-	"context"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -57,15 +56,12 @@ func (d *DNSProvider) updateZone(updateRequest ZoneUpdateRequest) (*ZoneUpdateRe
 }
 
 func (d *DNSProvider) getZone(findRequest ZoneConfigsFindRequest) (*ZoneConfig, error) {
-	ctx, cancel := context.WithCancel(context.Background())
-
 	var zoneConfig *ZoneConfig
 
 	operation := func() error {
 		findResponse, err := d.listZoneConfigs(findRequest)
 		if err != nil {
-			cancel()
+			return backoff.Permanent(err)
-			return err
 		}
 
 		if findResponse.Response.Data[0].Status != "active" {
@@ -83,7 +79,7 @@ func (d *DNSProvider) getZone(findRequest ZoneConfigsFindRequest) (*ZoneConfig,
 	bo.MaxElapsedTime = 100 * bo.InitialInterval
 
 	// retry in case the zone was edited recently and is not yet active
-	err := backoff.Retry(operation, backoff.WithContext(bo, ctx))
+	err := backoff.Retry(operation, bo)
 	if err != nil {
 		return nil, err
 	}