add: install agent guide on openrc

docs/en_US/guide/agent.md

@@ -29,13 +29,104 @@ Enter the administration panel, go to the "Settings" page, in the item "CDN Bypa
 * In the monitored server, run the script: 
 ```bash
 curl -L https://raw.githubusercontent.com/naiba/nezha/master/script/install_en.sh  -o nezha.sh && chmod +x nezha.sh && sudo ./nezha.sh   
-```  
+```
 * Select “Install_agent”  
+
 * Input the communication domain name, e.g. "data.example.com"  
+
 * Input RPC port, default is 5555 
+
 * Input the Agent Secret, which is generated when adding a server in the administration panel and can be found in the " Servers " page of the administration panel  
+
 * Wait for the installation to complete and return to the Dashboard home page to see if the server is online  
-<br/>  
+  <br/>
+
+### Installing Agent on other Linux (such as alpine use oprec not systemd)
+
+* edit SERVER,SECRET,TLS then run in shell
+
+```shell
+cat >/etc/init.d/nezha-agent<< EOF
+#!/sbin/openrc-run
+SERVER="" #dashboard address ip:port
+SECRET="" #SECRET
+TLS="" # enable tls?  yes:"--tls" no:""
+NZ_BASE_PATH="/opt/nezha"
+NZ_AGENT_PATH="${NZ_BASE_PATH}/agent"
+pidfile="/run/${RC_SVCNAME}.pid"
+command="/opt/nezha/agent/nezha-agent"
+command_args="-s ${SERVER}  -p ${SECRET} ${TLS}"
+command_background=true
+depend() {
+	need net
+}
+checkconfig() {
+	GITHUB_URL="github.com"
+	if [ ! -f "${NZ_AGENT_PATH}/nezha-agent" ]; then
+		if [[ $(uname -m | grep 'x86_64') != "" ]]; then
+			os_arch="amd64"
+		elif [[ $(uname -m | grep 'i386\|i686') != "" ]]; then
+			os_arch="386"
+		elif [[ $(uname -m | grep 'aarch64\|armv8b\|armv8l') != "" ]]; then
+			os_arch="arm64"
+		elif [[ $(uname -m | grep 'arm') != "" ]]; then
+			os_arch="arm"
+		elif [[ $(uname -m | grep 's390x') != "" ]]; then
+			os_arch="s390x"
+		elif [[ $(uname -m | grep 'riscv64') != "" ]]; then
+			os_arch="riscv64"
+		fi
+		local version=$(curl -m 10 -sL "https://api.github.com/repos/naiba/nezha/releases/latest" | grep "tag_name" | head -n 1 | awk -F ":" '{print $2}' | sed 's/\"//g;s/,//g;s/ //g')
+		if [ ! -n "$version" ]; then
+			version=$(curl -m 10 -sL "https://fastly.jsdelivr.net/gh/naiba/nezha/" | grep "option\.value" | awk -F "'" '{print $2}' | sed 's/naiba\/nezha@/v/g')
+		fi
+		if [ ! -n "$version" ]; then
+			version=$(curl -m 10 -sL "https://gcore.jsdelivr.net/gh/naiba/nezha/" | grep "option\.value" | awk -F "'" '{print $2}' | sed 's/naiba\/nezha@/v/g')
+		fi
+		if [ ! -n "$version" ]; then
+			echo -e "version get to failed, please check if the network can link https://api.github.com/repos/naiba/nezha/releases/latest"
+			return 0
+		else
+			echo -e "The current latest version is: ${version}"
+		fi
+		wget -t 2 -T 10 -O nezha-agent_linux_${os_arch}.zip https://${GITHUB_URL}/naiba/nezha/releases/download/${version}/nezha-agent_linux_${os_arch}.zip >/dev/null 2>&1
+		if [[ $? != 0 ]]; then
+			echo -e "Release download failed, please check if the network can link ${GITHUB_URL}${plain}"
+			return 0
+		fi
+		mkdir -p $NZ_AGENT_PATH
+		chmod 755 -R $NZ_AGENT_PATH
+		unzip -qo nezha-agent_linux_${os_arch}.zip && mv nezha-agent $NZ_AGENT_PATH && rm -rf nezha-agent_linux_${os_arch}.zip README.md
+	fi
+	if [ ! -x "${NZ_AGENT_PATH}/nezha-agent" ]; then
+		chmod +x ${NZ_AGENT_PATH}/nezha-agent
+	fi
+}
+start_pre() {
+	if [ "${RC_CMD}" != "restart" ]; then
+		checkconfig || return $?
+	fi
+}
+EOF
+```
+
+* add execute permission
+
+  ```shell
+  chmod +x /etc/init.d/nezha-agent
+  ```
+
+* run nezha-agent
+
+  ```shell
+  rc-service nezha-agent-hy start
+  ```
+
+* auto start on boot
+
+  ```shell
+  rc-update add nezha-agent
+  ```
 
 ### Installing Agent on Windows  
 - Please refer to the community article: 
@@ -48,7 +139,7 @@ curl -L https://raw.githubusercontent.com/naiba/nezha/master/script/install_en.s
 ::: warning  
 If you are prompted with "macOS cannot verify this app" during installation, please go to system settings to allow the app to run.  
 :::  
-  
+
 + First add a server in the admin panel  
 + Go to the [Release](https://github.com/naiba/nezha/releases) page to download the Agent binary and choose whether to download the darwin amd64 or arm64 Agent depending on the CPU architecture  
 For example, download the amd64 version for Intel CPU and the arm64 version for Apple Silicon. After downloading, extract the Agent binary file, e.g. to the Download folder 
@@ -76,27 +167,27 @@ For example, download the amd64 version for Intel CPU and the arm64 version for
 	<true/>
 </dict>
 </plist>
-```  
+```
 + Use the following command in Terminal to load the plist file into launchd  
  **Be sure to change the file path**  
 ```shell  
 launchctl load /Users/123/Desktop/nezha_agent.plist
-```  
+```
 + Start Service  
 ```shell  
 launchctl start nezha_agent
-```  
+```
 + Check if the service is running  
 ```shell  
 launchctl list | grep nezha_agent
-```  
+```
 + Stop service and remove
 ```shell  
 launchctl stop nezha_agent
-```  
+```
 ```shell  
 launchctl remove nezha_agent
-``` 
+```
 <br/>  
 
 ### Installing Agent on OpenWRT

docs/guide/agent.md

@@ -33,7 +33,7 @@
 * 在被控服务器中，运行脚本（位于中国大陆的服务器请使用镜像）：
 ```bash
 curl -L https://raw.githubusercontent.com/naiba/nezha/master/script/install.sh  -o nezha.sh && chmod +x nezha.sh && sudo ./nezha.sh
-```  
+```
 如果你的被控服务器位于中国大陆，可以使用镜像：  
 ````bash
 curl -L https://jihulab.com/nezha/nezha/-/raw/master/script/install.sh -o nezha.sh && chmod +x nezha.sh && sudo CN=true ./nezha.sh
@@ -45,6 +45,95 @@ curl -L https://jihulab.com/nezha/nezha/-/raw/master/script/install.sh -o nezha.
 * 等待安装完成后返回Dashboard主页查看服务器是否上线  
 <br/>  
 
+### 在 其他Linux 如 alpine 使用 openrc 的发行版 安装 Agent
+
+* 修改 SERVER、SECRET、TLS 然后在 shell 中 执行
+
+```shell
+cat >/etc/init.d/nezha-agent<< EOF
+#!/sbin/openrc-run
+SERVER="" #dashboard 地址 ip:port
+SECRET="" #SECRET
+TLS="" # 是否启用 tls 是 "--tls" 否留空
+NZ_BASE_PATH="/opt/nezha"
+NZ_AGENT_PATH="${NZ_BASE_PATH}/agent"
+pidfile="/run/${RC_SVCNAME}.pid"
+command="/opt/nezha/agent/nezha-agent"
+command_args="-s ${SERVER}  -p ${SECRET} ${TLS}"
+command_background=true
+depend() {
+	need net
+}
+checkconfig() {
+	GITHUB_URL="github.com"
+	if [ ! -f "${NZ_AGENT_PATH}/nezha-agent" ]; then
+		if [[ $(uname -m | grep 'x86_64') != "" ]]; then
+			os_arch="amd64"
+		elif [[ $(uname -m | grep 'i386\|i686') != "" ]]; then
+			os_arch="386"
+		elif [[ $(uname -m | grep 'aarch64\|armv8b\|armv8l') != "" ]]; then
+			os_arch="arm64"
+		elif [[ $(uname -m | grep 'arm') != "" ]]; then
+			os_arch="arm"
+		elif [[ $(uname -m | grep 's390x') != "" ]]; then
+			os_arch="s390x"
+		elif [[ $(uname -m | grep 'riscv64') != "" ]]; then
+			os_arch="riscv64"
+		fi
+		local version=$(curl -m 10 -sL "https://api.github.com/repos/naiba/nezha/releases/latest" | grep "tag_name" | head -n 1 | awk -F ":" '{print $2}' | sed 's/\"//g;s/,//g;s/ //g')
+		if [ ! -n "$version" ]; then
+			version=$(curl -m 10 -sL "https://fastly.jsdelivr.net/gh/naiba/nezha/" | grep "option\.value" | awk -F "'" '{print $2}' | sed 's/naiba\/nezha@/v/g')
+		fi
+		if [ ! -n "$version" ]; then
+			version=$(curl -m 10 -sL "https://gcore.jsdelivr.net/gh/naiba/nezha/" | grep "option\.value" | awk -F "'" '{print $2}' | sed 's/naiba\/nezha@/v/g')
+		fi
+		if [ ! -n "$version" ]; then
+			echo -e "获取版本号失败，请检查本机能否链接 https://api.github.com/repos/naiba/nezha/releases/latest"
+			return 0
+		else
+			echo -e "当前最新版本为: ${version}"
+		fi
+		wget -t 2 -T 10 -O nezha-agent_linux_${os_arch}.zip https://${GITHUB_URL}/naiba/nezha/releases/download/${version}/nezha-agent_linux_${os_arch}.zip >/dev/null 2>&1
+		if [[ $? != 0 ]]; then
+			echo -e "Release 下载失败，请检查本机能否连接 ${GITHUB_URL}${plain}"
+			return 0
+		fi
+		mkdir -p $NZ_AGENT_PATH
+		chmod 755 -R $NZ_AGENT_PATH
+		unzip -qo nezha-agent_linux_${os_arch}.zip && mv nezha-agent $NZ_AGENT_PATH && rm -rf nezha-agent_linux_${os_arch}.zip README.md
+	fi
+	if [ ! -x "${NZ_AGENT_PATH}/nezha-agent" ]; then
+		chmod +x ${NZ_AGENT_PATH}/nezha-agent
+	fi
+}
+start_pre() {
+	if [ "${RC_CMD}" != "restart" ]; then
+		checkconfig || return $?
+	fi
+}
+EOF
+```
+
+* 增加运行权限
+
+  ```shell
+  chmod +x /etc/init.d/nezha-agent
+  ```
+
+* 运行 nezha-agent
+
+  ```shell
+  rc-service nezha-agent-hy start
+  ```
+
+* 添加开机自启动
+
+  ```shell
+  rc-update add nezha-agent
+  ```
+
+
+
 ### 在 Windows 中安装Agent  
 
 - 请参考社区文章：  
@@ -85,26 +174,26 @@ curl -L https://jihulab.com/nezha/nezha/-/raw/master/script/install.sh -o nezha.
 	<true/>
 </dict>
 </plist>
-```  
+```
 + 在 Terminal 中使用下面的命令加载 plist 文件到 launchd 里，**注意替换文件路径**  
 ```shell  
 launchctl load /Users/123/Desktop/nezha_agent.plist
-```  
+```
 + 启动进程  
 ```shell  
 launchctl start nezha_agent
-```  
+```
 + 检查进程是否运行  
 ```shell  
 launchctl list | grep nezha_agent
-```  
+```
 + 停止进程并移除
 ```shell  
 launchctl stop nezha_agent
-```  
+```
 ```shell  
 launchctl remove nezha_agent
-``` 
+```
 <br/>  
 
 ### 在 OpenWRT 中安装Agent