[receiver/mysql] Change the type of Config.Password to be `configop…

…aque.String` (#23868)

**Description:**
Split out from: #17353

**Link to tracking Issue:**
#17273

.chloggen/mysql-use-configopaque.yaml

@@ -0,0 +1,20 @@
+# Use this changelog template to create an entry for release notes.
+# If your change doesn't affect end users, such as a test fix or a tooling change,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: breaking
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: receiver/mysql
+
+# A brief description of the change. Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Change the type of `Config.Password` to be `configopaque.String`
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [17273]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:

receiver/mysqlreceiver/client.go

@@ -166,7 +166,7 @@ var _ client = (*mySQLClient)(nil)
 func newMySQLClient(conf *Config) client {
  driverConf := mysql.Config{
  User: conf.Username,
- Passwd: conf.Password,
+ Passwd: string(conf.Password),
  Net: conf.Transport,
  Addr: conf.Endpoint,
  DBName: conf.Database,

receiver/mysqlreceiver/config.go

@@ -7,6 +7,7 @@ import (
  "time"
 
  "go.opentelemetry.io/collector/config/confignet"
+ "go.opentelemetry.io/collector/config/configopaque"
  "go.opentelemetry.io/collector/receiver/scraperhelper"
 
  "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/mysqlreceiver/internal/metadata"
@@ -20,10 +21,10 @@ const (
 
 type Config struct {
  scraperhelper.ScraperControllerSettings `mapstructure:",squash"`
- Username string `mapstructure:"username,omitempty"`
- Password string `mapstructure:"password,omitempty"`
- Database string `mapstructure:"database,omitempty"`
- AllowNativePasswords bool `mapstructure:"allow_native_passwords,omitempty"`
+ Username string  `mapstructure:"username,omitempty"`
+ Password configopaque.String `mapstructure:"password,omitempty"`
+ Database string  `mapstructure:"database,omitempty"`
+ AllowNativePasswords bool  `mapstructure:"allow_native_passwords,omitempty"`
  confignet.NetAddr `mapstructure:",squash"`
  MetricsBuilderConfig metadata.MetricsBuilderConfig `mapstructure:",squash"`
  StatementEvents StatementEventsConfig `mapstructure:"statement_events"`

receiver/mysqlreceiver/go.mod

@@ -11,6 +11,7 @@ require (
  github.com/testcontainers/testcontainers-go v0.21.0
  go.opentelemetry.io/collector/component v0.80.1-0.20230629144634-c3f70bd1f8ea
  go.opentelemetry.io/collector/config/confignet v0.80.1-0.20230629144634-c3f70bd1f8ea
+ go.opentelemetry.io/collector/config/configopaque v0.80.1-0.20230629144634-c3f70bd1f8ea
  go.opentelemetry.io/collector/confmap v0.80.1-0.20230629144634-c3f70bd1f8ea
  go.opentelemetry.io/collector/consumer v0.80.1-0.20230629144634-c3f70bd1f8ea
  go.opentelemetry.io/collector/pdata v1.0.0-rcv0013.0.20230629144634-c3f70bd1f8ea