Deprecation of package ioutil in Go 1.16. golang/go#42026 (#164)

Author: prithvi514

pkg/admin/connector.go

@@ -4,7 +4,7 @@ import (
 	"crypto/tls"
 	"crypto/x509"
 	"fmt"
-	"io/ioutil"
+	"os"
 	"strings"
 	"time"
 
@@ -132,7 +132,7 @@ func NewConnector(config ConnectorConfig) (*Connector, error) {
 		if config.TLS.CACertPath != "" {
 			log.Debugf("Adding CA certs from %s", config.TLS.CACertPath)
 			caCertPool = x509.NewCertPool()
-			caCertContents, err := ioutil.ReadFile(config.TLS.CACertPath)
+			caCertContents, err := os.ReadFile(config.TLS.CACertPath)
 			if err != nil {
 				return nil, err
 			}

pkg/cli/cli.go

@@ -3,7 +3,6 @@ package cli
 import (
 	"context"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"regexp"
@@ -177,7 +176,7 @@ func (c *CLIRunner) BootstrapTopics(
 
 			if isNew || overwrite {
 				log.Infof("Writing config to %s", outputPath)
-				err = ioutil.WriteFile(outputPath, []byte(yamlStr), 0644)
+				err = os.WriteFile(outputPath, []byte(yamlStr), 0644)
 				if err != nil {
 					return err
 				}

pkg/config/load.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"encoding/json"
 	"errors"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"regexp"
@@ -18,7 +17,7 @@ var sep = regexp.MustCompile("(?:^|\\s*\n)---\\s*")
 
 // LoadClusterFile loads a ClusterConfig from a path to a YAML file.
 func LoadClusterFile(path string, expandEnv bool) (ClusterConfig, error) {
-	contents, err := ioutil.ReadFile(path)
+	contents, err := os.ReadFile(path)
 	if err != nil {
 		return ClusterConfig{}, err
 	}
@@ -50,7 +49,7 @@ func LoadClusterBytes(contents []byte) (ClusterConfig, error) {
 
 // LoadTopicsFile loads one or more TopicConfigs from a path to a YAML file.
 func LoadTopicsFile(path string) ([]TopicConfig, error) {
-	contents, err := ioutil.ReadFile(path)
+	contents, err := os.ReadFile(path)
 	if err != nil {
 		return nil, err
 	}