差異處

這裏顯示兩個版本的差異處。

--- tech:librenms [2022/01/13 22:37] – [參考網址] jonathan
+++ tech:librenms [2024/02/20 12:13] (目前版本) – [設定告警通知] jonathan
@@ 行 1: / 行 1: @@
 ====== Ubuntu 20.04 / CentOS7 安裝 LibreNMS 程序 ======
+<note tip>
+如果要以 Docker 方式進行安裝, 可參考 [[tech/k8s_librenms]]
+</note>
   * Ubuntu 20.04 LTS
   * CentOS Linux release 7.5.1804 (Core)
@@ 行 53: / 行 57: @@
       * 當監控的設備無法連線就通知 ++設定畫面參考| \\ {{:tech:2018121003.png?600}} \\ {{:tech:2018121004.png?800}}++
       * 將預設網路流量超過 90% 告警排除 lo 介面++設定畫面參考| \\ {{:tech:image_100.png?600}}++
+    * 針對特定設備特定掛載硬碟剩餘空間進行設定 Exp. 172.16.0.230 排除 /mnt/ext 使用超過 90% 的通知
+      * 進入 172.16.0.230 的 Alert Rules 設定頁面 ++設定畫面參考| \\ {{:tech:2022-08-01_15_25_47.png?800|}}++
+      * 修改 硬碟空間已使用 90% 規則, 增加排除 /mnt/ext 規則 ++設定畫面參考| \\ {{:tech:2022-08-01_15_27_40.png?600|}}++
+    * 針對特定群組主機設定實體記憶體使用超過 7G 就發出 Critical 通知 ++設定畫面參考| \\ {{:tech:螢幕擷取畫面_2024-02-20_120728.png?800|}}++
@@ 行 336: / 行 344: @@
-==== 由 CentOS7 移轉至 Ubuntu 20.04 ====
+===== 由 CentOS 7 移轉至 Ubuntu 20.04 =====
+  * 參考 [[https://docs.librenms.org/Support/FAQ/#faq24|How do I migrate my LibreNMS install to another server?]] 方式處理
+  - 依照正常程序安裝 [[tech/librenms/ubuntu20_04|LibreNMS 在 Ubuntu 20.04]] 上
+  - 修改 CentOs 7 與 Ubuntu 20.04 新舊主機內的 /etc/cron.d/librenms 停止 cron 執行<cli>vi /etc/cron.d/librenms</cli><file>
+:
+#33   */6  * * *   librenms    /opt/librenms/cronic /opt/librenms/discovery-wrapper.py 1
+#*/5  *    * * *   librenms    /opt/librenms/discovery.php -h new >> /dev/null 2>&1
+#*/5  *    * * *   librenms    /opt/librenms/cronic /opt/librenms/poller-wrapper.py 16
+#*    *    * * *   librenms    /opt/librenms/alerts.php >> /dev/null 2>&1
+#*/5  *    * * *   librenms    /opt/librenms/poll-billing.php >> /dev/null 2>&1
+#01   *    * * *   librenms    /opt/librenms/billing-calculate.php >> /dev/null 2>&1
+#*/5  *    * * *   librenms    /opt/librenms/check-services.php >> /dev/null 2>&1
+#*    *    * * *   librenms    cd /opt/librenms/ && php artisan schedule:run >> /dev/null 2>&1
+:
+#15   0    * * *   librenms    /opt/librenms/daily.sh >> /dev/null 2>&1
+</file>
+  - 在 CentOS 7 舊主機內將 MySQL 資料匯出 <cli>
+mysqldump librenms -u root -p > librenms.sql
+</cli>
+  - 在 Ubuntu 20.04 新主機將 librenms.sql 匯入 <cli>
+scp [email protected]:/root/librenms.sql .
+mysql -u root -p librenms < librenms.sql
+</cli>
+  - 將 CentOS 7 舊主機內的 rrd 目錄內的檔案複製到 Ubuntu 20.04 新主機內, @CentOs 7<cli>
+cd /opt/librenms/
+tar cvf rrd.tar rrd
+</cli>@Ubuntu 20.04<cli>
+cd /opt/librenms/
+scp [email protected]:/opt/librenms/rrd.tar .
+tar xvf rrd.tar
+</cli>
+  - 將 CentOS 7 舊主機內的 .env 和 config.php 檔案複製到 Ubuntu 20.04 新主機內, @Ubunutu 20.04<cli>
+cd /opt/librenms/
+scp [email protected]:/opt/librenms/.env .
+scp [email protected]:/opt/librenms/config.php .
+chown -R librenms:librenms /opt/librenms
+</cli>
+  - 檢查 Ubuntu 20.04 新主機內的安裝狀態 <cli>
+su - librenms
+./validate.php
+</cli>
+  - 修改 Ubuntu 20.04 新主機內的 /etc/cron.d/librenms 啟動 cron 執行<cli>vi /etc/cron.d/librenms</cli><file>
+:
+   */6  * * *   librenms    /opt/librenms/cronic /opt/librenms/discovery-wrapper.py 1
+*/5  *    * * *   librenms    /opt/librenms/discovery.php -h new >> /dev/null 2>&1
+*/5  *    * * *   librenms    /opt/librenms/cronic /opt/librenms/poller-wrapper.py 16
+*    *    * * *   librenms    /opt/librenms/alerts.php >> /dev/null 2>&1
+*/5  *    * * *   librenms    /opt/librenms/poll-billing.php >> /dev/null 2>&1
+   *    * * *   librenms    /opt/librenms/billing-calculate.php >> /dev/null 2>&1
+*/5  *    * * *   librenms    /opt/librenms/check-services.php >> /dev/null 2>&1
+*    *    * * *   librenms    cd /opt/librenms/ && php artisan schedule:run >> /dev/null 2>&1
+:
+   0    * * *   librenms    /opt/librenms/daily.sh >> /dev/null 2>&1
+</file>
+===== 升級 php 至 8.1 以上版本 =====
+  * 今天看到這訊息
+<note>
+Error: PHP version too low
+PHP version 8.1 is the minimum supported version as of September, 2022. We recommend you update to PHP a supported version of PHP (8.1 suggested) to continue to receive updates. If you do not update PHP, LibreNMS will continue to function but stop receiving bug fixes and updates.
+-09-27 00:00:00 | Source: daily.sh
+</note>
+  * 檢查作業系統 -> Ububtu 20.04 / php 7.4 / nginx 1.18<cli>
+root@ct-librenms:~# cat /etc/issue
+Ubuntu 20.04.4 LTS \n \l
+root@ct-librenms:~# php -v
+PHP 7.4.3 (cli) (built: Jun 13 2022 13:43:30) ( NTS )
+Copyright (c) The PHP Group
+Zend Engine v3.4.0, Copyright (c) Zend Technologies
+    with Zend OPcache v7.4.3, Copyright (c), by Zend Technologies
+root@ct-librenms:~# nginx -v
+nginx version: nginx/1.18.0 (Ubuntu)
+</cli>
+  * 進行升級 ref - https://www.linuxcapable.com/how-to-install-php-8-1-on-ubuntu-20-04/ <cli>
+apt update && apt upgrade -y
+apt install software-properties-common && add-apt-repository ppa:ondrej/php -y
+apt update && apt upgrade -y
+apt install php8.1 php8.1-fpm php8.1-cli php8.1-gd php8.1-curl php8.1-dom php8.1-xml php8.1-mysql php8.1-mbstring -y
+apt autoremove -y
+systemctl status php8.1-fpm
+systemctl restart nginx
+</cli><cli>
+root@ct-librenms:~# php --version
+PHP 8.1.10 (cli) (built: Sep 18 2022 10:25:43) (NTS)
+Copyright (c) The PHP Group
+Zend Engine v4.1.10, Copyright (c) Zend Technologies
+    with Zend OPcache v8.1.10, Copyright (c), by Zend Technologies
+</cli>
+  * 更換 php-fpm 的版本設定
+    * 查看目前啟動的 php-fpm 狀況<cli>
+root@ct-librenms:~# ps -ef |grep php-fpm
+root         133       1  0 09:05 ?        00:00:00 php-fpm: master process (/etc/php/7.4/fpm/php-fpm.conf)
+root         134       1  0 09:05 ?        00:00:00 php-fpm: master process (/etc/php/8.1/fpm/php-fpm.conf)
+www-data     161     134  0 09:05 ?        00:00:00 php-fpm: pool www
+www-data     163     134  0 09:05 ?        00:00:00 php-fpm: pool www
+:
+</cli>
+    * 關閉 7.4 版的 php-fpm<cli>
+root@ct-librenms:~# systemctl stop php7.4-fpm.service
+root@ct-librenms:~# systemctl disable php7.4-fpm.service
+Synchronizing state of php7.4-fpm.service with SysV service script with /lib/systemd/systemd-sysv-install.
+Executing: /lib/systemd/systemd-sysv-install disable php7.4-fpm
+Removed /etc/systemd/system/multi-user.target.wants/php7.4-fpm.service.
+</cli>
+    * 確認 8.4 版的 php-fpm socket 檔案<cli>
+root@ct-librenms:/etc/nginx/conf.d# ls -lt /run/php/php
+php-fpm.sock     php8.1-fpm.pid   php8.1-fpm.sock
+root@ct-librenms:/etc/nginx/conf.d# ls -lt /run/php/php-fpm.sock
+lrwxrwxrwx 1 root root 30 Sep 29 09:05 /run/php/php-fpm.sock -> /etc/alternatives/php-fpm.sock
+root@ct-librenms:/etc/nginx/conf.d# ls -lt /run/php/php8.1-fpm.sock
+srw-rw---- 1 www-data www-data 0 Sep 29 09:05 /run/php/php8.1-fpm.sock
+</cli> 所以只要設定是 /run/php/php-fpm.sock 就可以正確連上 8.4 版 php-fpm
+  * 將 nginx 內的 librenms 網站設定改用新板 php-fpm <cli>
+vi /etc/nginx/conf.d/librenms.conf
+</cli><file>
+:
+ }
+ location ~ [^/]\.php(/|$) {
+  fastcgi_pass unix:/run/php/php-fpm.sock;
+  fastcgi_split_path_info ^(.+\.php)(/.+)$;
+:
+</file>
+  * 重啟 nginx <cli>
+systemctl restart nginx.service
+</cli>
+  * 執行 librenms 的設定檢查<cli>
+su - librenms
+./validate.php
+</cli><cli>
+librenms@ct-librenms:~$ ./validate.php
+====================================
+Component | Version
+--------- | -------
+LibreNMS  | 22.9.0-5-g66790e7e8
+DB Schema | 2022_09_03_091314_update_ports_adsl_table_with_defaults (246)
+PHP       | 8.1.11
+Python    | 3.8.10
+Database  | MariaDB 10.3.34-MariaDB-0ubuntu0.20.04.1
+RRDTool   | 1.7.2
+SNMP      | 5.8
+====================================
+[OK]    Composer Version: 2.4.2
+[OK]    Dependencies up-to-date.
+:
+:
+OK]    Database schema correct
+[FAIL]  Time between this server and the mysql database is off
+ Mysql time 2022-10-04 18:40:56
+ PHP time 2022-10-04 10:40:56
+[FAIL]  Missing PHP extension: mbstring
+        [FIX]:
+        Please install mbstring
+[FAIL]  You have no timezone set for php.
+        [FIX]:
+        https://php.net/manual/en/datetime.configuration.php#ini.date.timezone
+[OK]    Active pollers found
+:
+[OK]    rrdtool version ok
+[WARN]  Your install is over 24 hours out of date, last update: Mon, 26 Sep 2022 13:52:15 +0000
+        [FIX]:
+        Make sure your daily.sh cron is running and run ./daily.sh by hand to see if there are any errors.
+[WARN]  Your local git contains modified files, this could prevent automatic updates.
+        [FIX]:
+        You can fix this with ./scripts/github-remove
+        Modified Files:
+         bootstrap/cache/.gitignore
+         logs/.gitignore
+         storage/app/.gitignore
+         storage/app/public/.gitignore
+         storage/debugbar/.gitignore
+         storage/framework/cache/.gitignore
+         storage/framework/cache/data/.gitignore
+         storage/framework/sessions/.gitignore
+         storage/framework/testing/.gitignore
+         storage/framework/views/.gitignore
+         storage/logs/.gitignore
+[FAIL]  We have found some files that are owned by a different user than 'librenms', this will stop you updating automatically and / or rrd files being updated causing graphs to fail.
+        [FIX]:
+        sudo chown -R librenms:librenms /opt/librenms
+        sudo setfacl -d -m g::rwx /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/
+        sudo chmod -R ug=rwX /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/
+        Files:
+         /opt/librenms/logs/.librenms.log.swp
+</cli>
+  * 依照上述的修正建議進行修正<cli>
+su - root
+vi /etc/php/8.1/fpm/php.ini
+----
+:
+[Date]
+; Defines the default timezone used by the date functions
+; https://php.net/date.timezone
+date.timezone = "Asia/Taipei"
+:
+----
+vi /etc/php/8.1/cli/php.ini
+----
+:
+[Date]
+; Defines the default timezone used by the date functions
+; https://php.net/date.timezone
+date.timezone = "Asia/Taipei"
+:
+----
+su - librenms
+./daily.sh
+./scripts/github-remove -d
+su - root
+chown -R librenms:librenms /opt/librenms
+chmod -R ug=rwX /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/
+usermod -a -G librenms www-data
+su - librenms
+</cli><cli>
+librenms@ct-librenms:~$ ./validate.php
+===========================================
+Component | Version
+--------- | -------
+LibreNMS  | 22.9.0-34-ge4fdbbd82 (2022-10-04T01:55:49+08:00)
+DB Schema | 2022_09_03_091314_update_ports_adsl_table_with_defaults (246)
+PHP       | 8.1.11
+Python    | 3.8.10
+Database  | MariaDB 10.3.34-MariaDB-0ubuntu0.20.04.1
+RRDTool   | 1.7.2
+SNMP      | 5.8
+===========================================
+[OK]    Composer Version: 2.4.2
+[OK]    Dependencies up-to-date.
+[OK]    Database connection successful
+[OK]    Database Schema is current
+[OK]    SQL Server meets minimum requirements
+[OK]    lower_case_table_names is enabled
+[OK]    MySQL engine is optimal
+[OK]
+[OK]    Database schema correct
+[OK]    MySQl and PHP time match
+[OK]    Active pollers found
+[OK]    Dispatcher Service not detected
+[OK]    Locks are functional
+[OK]    Python poller wrapper is polling
+[OK]    Redis is unavailable
+[OK]    rrd_dir is writable
+[OK]    rrdtool version ok
+</cli>
 ===== 參考網址 ====
   * https://docs.librenms.org/#Installation/Installation-CentOS-7-Nginx/
@@ 行 346: / 行 599: @@
   * https://docs.librenms.org/Support/FAQ/#faq24
-{{tag>nms librenms centos7 ubuntu20.04}}
+{{tag>nms librenms centos7 ubuntu}}