feat: 增加几个重要配置支持通过环境变量加载的方式 (opsre#326)

Author: eryajf

Dockerfile

@@ -4,14 +4,14 @@ WORKDIR /app
 
 RUN sed -i "s/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g" /etc/apk/repositories \
     && apk upgrade && apk add --no-cache --virtual .build-deps \
-    ca-certificates gcc g++ curl
+    ca-certificates gcc g++ curl upx
 
 ADD . .
 
 RUN release_url=$(curl -s https://api.github.com/repos/eryajf/go-ldap-admin-ui/releases/latest | grep "browser_download_url" | grep -v 'dist.zip.md5' | cut -d '"' -f 4); wget $release_url && unzip dist.zip && rm dist.zip && mv dist public/static
 
 RUN sed -i 's@localhost:389@openldap:389@g' /app/config.yml \
-    && sed -i 's@host: localhost@host: mysql@g'  /app/config.yml && go build -o go-ldap-admin .
+    && sed -i 's@host: localhost@host: mysql@g'  /app/config.yml && go build -o go-ldap-admin . && upx -9 go-ldap-admin
 
 ### build final image
 FROM registry.cn-hangzhou.aliyuncs.com/ali_eryajf/alpine:3.19

config/config.go

@@ -4,6 +4,7 @@ import (
 	_ "embed"
 	"fmt"
 	"os"
+	"strconv"
 
 	"github.com/fsnotify/fsnotify"
 	"github.com/spf13/viper"
@@ -72,6 +73,65 @@ func InitConfig() {
 	Conf.System.RSAPublicBytes = pub
 	Conf.System.RSAPrivateBytes = priv
 
+	// 部分配合通过环境变量加载
+	dbDriver := os.Getenv("DB_DRIVER")
+	if dbDriver != "" {
+		Conf.Database.Driver = dbDriver
+	}
+	mysqlHost := os.Getenv("MYSQL_HOST")
+	if mysqlHost != "" {
+		Conf.Mysql.Host = mysqlHost
+	}
+	mysqlUsername := os.Getenv("MYSQL_USERNAME")
+	if mysqlUsername != "" {
+		Conf.Mysql.Username = mysqlUsername
+	}
+	mysqlPassword := os.Getenv("MYSQL_PASSWORD")
+	if mysqlPassword != "" {
+		Conf.Mysql.Password = mysqlPassword
+	}
+	mysqlDatabase := os.Getenv("MYSQL_DATABASE")
+	if mysqlDatabase != "" {
+		Conf.Mysql.Database = mysqlDatabase
+	}
+	mysqlPort := os.Getenv("MYSQL_PORT")
+	if mysqlPort != "" {
+		Conf.Mysql.Port, _ = strconv.Atoi(mysqlPort)
+	}
+
+	ldapUrl := os.Getenv("LDAP_URL")
+	if ldapUrl != "" {
+		Conf.Ldap.Url = ldapUrl
+	}
+	ldapBaseDN := os.Getenv("LDAP_BASE_DN")
+	if ldapBaseDN != "" {
+		Conf.Ldap.BaseDN = ldapBaseDN
+	}
+	ldapAdminDN := os.Getenv("LDAP_ADMIN_DN")
+	if ldapAdminDN != "" {
+		Conf.Ldap.AdminDN = ldapAdminDN
+	}
+	ldapAdminPass := os.Getenv("LDAP_ADMIN_PASS")
+	if ldapAdminPass != "" {
+		Conf.Ldap.AdminPass = ldapAdminPass
+	}
+	ldapUserDN := os.Getenv("LDAP_USER_DN")
+	if ldapUserDN != "" {
+		Conf.Ldap.UserDN = ldapUserDN
+	}
+	ldapUserInitPassword := os.Getenv("LDAP_USER_INIT_PASSWORD")
+	if ldapUserInitPassword != "" {
+
+		Conf.Ldap.UserInitPassword = ldapUserInitPassword
+	}
+	ldapDefaultEmailSuffix := os.Getenv("LDAP_DEFAULT_EMAIL_SUFFIX")
+	if ldapDefaultEmailSuffix != "" {
+		Conf.Ldap.DefaultEmailSuffix = ldapDefaultEmailSuffix
+	}
+	ldapUserPasswordEncryptionType := os.Getenv("LDAP_USER_PASSWORD_ENCRYPTION_TYPE")
+	if ldapUserPasswordEncryptionType != "" {
+		Conf.Ldap.UserPasswordEncryptionType = ldapUserPasswordEncryptionType
+	}
 }
 
 type SystemConfig struct {