ارسال لاگ به الستیک

You can use the json input type in Filebeat to send JSON logs to Elasticsearch. Here is an example of how you can configure Filebeat to send JSON logs to Elasticsearch 1:

filebeat.inputs:
- type: log
  enabled: true
  paths:
    - /var/log/*.json
  json.keys_under_root: true
  json.add_error_key: true

output.elasticsearch:
  hosts: ["localhost:9200"]
  index: "myindex-%{+yyyy.MM.dd}"

Here is an example of a docker-compose file for

 Filebeat, Elasticsearch and Kibana with password :

version: '3.7'
services:
  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.16.2
    container_name: elasticsearch
    environment:
      - node.name=elasticsearch
      - cluster.name=elasticsearch-cluster
      - discovery.seed_hosts=elasticsearch
      - cluster.initial_master_nodes=elasticsearch
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
      - ELASTIC_PASSWORD=changeme
    ulimits:
      memlock:
        soft: -1
        hard: -1
    volumes:
      - esdata1:/usr/share/elasticsearch/data
    ports:
      - 9200:9200

  kibana:
    image: docker.elastic.co/kibana/kibana:7.16.2
    container_name: kibana
    environment:
      ELASTICSEARCH_URL: http://elasticsearch:9200
      ELASTICSEARCH_HOSTS: http://elasticsearch:9200
      ELASTICSEARCH_USERNAME: elastic
      ELASTICSEARCH_PASSWORD: changeme
    ports:
      - 5601:5601

  filebeat:
    image: docker.elastic.co/beats/filebeat:7.16.2
    container_name: filebeat
    user: root
    volumes:
      - ./filebeat.yml:/usr/share/filebeat/filebeat.yml
      - /var/lib/docker/containers:/var/lib/docker/containers
    command: filebeat -e --strict.perms=false

volumes:
  esdata1:
    driver: local

لاگ کردن در کنسول با فرمت Json

To print logs in JSON format with SLF4J in Spring Boot, you can use Logback as the logging framework. You can add the following dependencies to your pom.xml file:

<dependency>
    <groupId>net.logstash.logback</groupId>
    <artifactId>logstash-logback-encoder</artifactId>
    <version>6.6</version>
</dependency>

کش در درگاه اسپرینت

To cache Next.js pages in Spring Cloud Gateway, you can use Spring Cache and Caffeine. You can write a filter that caches the response for specific requests. Here is an example of how to do it:

@Component
@Slf4j
public class CacheResponseGatewayFilterFactory extends AbstractGatewayFilterFactory<CacheResponseGatewayFilterFactory.Config> {

    public CacheResponseGatewayFilterFactory() {
        super(Config.class);
    }

    @Override
    public GatewayFilter apply(Config config) {
        return (exchange, chain) -> {
            String cacheKey = exchange.getRequest().getURI().toString();
            Cache.ValueWrapper

cachedResponse = cacheManager.getCache("myCache").get(cacheKey);
            if (cachedResponse != null) {
                log.info("Returning cached response for {}", cacheKey);
                return Mono.just(cachedResponse.get());
            }
            return chain.filter(exchange).doOnNext(response -> {
                if (response.getStatusCode().is2xxSuccessful()) {
                    log.info("Caching response for {}", cacheKey);
                    cacheManager.getCache("myCache").put(cacheKey, response);
                }
            });
};
    }

    public static class Config {
        // Put the configuration properties here
    }

}

تیون mysql 8 برای کارایی بهتر

در این پست به بررسی چگونه پیکربندی mysql برای بهبود کارایی آن پرداخته شده است

منبع: https://medium.com/datadenys/tuning-mysql-8-0-server-for-better-performance-238e463f5583

از داکر کامپوز برای راه اندازی آن استفاده میکنیم

version: '3.3'

services:

  db:

    image: mysql:latest

    container_name: app_db

    restart: always

    environment:

      MYSQL_DATABASE: '---------'

      MYSQL_USER: '-------------'

      MYSQL_PASSWORD: '------------'

      MYSQL_ROOT_PASSWORD: '--------------'

    command:

 --character-set-server=utf8mb4

 --collation-server=utf8mb4_unicode_ci 

--innodb-buffer-pool-size=20G 

--innodb-buffer-pool-instances=16 

--innodb_log_file_size=20G

--innodb_log_buffer_size=1G

    ports:

      - '3306:3306'

    expose:

      - '3306'

    volumes:

      - ./db/files/:/var/lib/mysql

چگونه کانفلوئنس را RTL کنیم

table.wysiwyg-macro[data-macro-name="rtl"] {
  direction: rtl;
  text-align: justify;
}

table.wysiwyg-macro[data-macro-name="ltr"] {
  direction: ltr;
  text-align: initial;
}

.conf-macro.output-inline[data-macro-name="ltr"] {
  direction: ltr;
  text-align: initial;
}

table.wysiwyg-macro[data-macro-name="code"] {
  direction: ltr;
  text-align: initial;
}

.conf-macro.output-block[data-macro-name="drawio"] {
  text-align: center;
}

@font-face {
  font-family: Vazir;
  src: url('https://cdn.jsdelivr.net/gh/rastikerdar/vazir-font@v26.0.2/dist/Vazir.ttf') format('truetype');
}

@font-face {
  font-family: "Vazir Code";
  src: url('https://cdn.rawgit.com/rastikerdar/vazir-code-font/v1.1.2/dist/Vazir-Code.ttf') format('truetype');
}

#title-text, .wiki-content {
  font-family: Vazir;
}

.wiki-content {
  text-align: right !important;
  direction: rtl;
  /* text-indent: 1em; */
}

code {
  font-family: "Vazir Code";
  background: rgba(0,0,0,0.03);
  border: 1px solid #dfe1e5;
  border-radius: 3px;
  padding: 1px 6px;
}

#title-text {
  direction: rtl;
}

#content-title-div {
  direction: rtl;
}

#main-content {
  direction: rtl;
}


.auto-cursor-target {
  direction: rtl;
  text-align: justify;
}

.conf-macro.output-block {
  direction: ltr;
}

.toc-macro {
  direction: rtl !important;
}

ul.inline-task-list > li {
  background-position-x: right !important;
  padding-right: 20px;
}

install docker on centos 7

-- install docker 

yum install epel-release

yum install -y yum-utils device-mapper-persistent-data lvm2 yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo yum install docker-ce docker-ce-cli containerd.io docker version systemctl enable docker.service systemctl start docker.service

-- install docker compose

yum install -y python-pip pip install --upgrade pip yum upgrade python* pip2.7 install cryptography==2.2.2 pip install docker-compose docker-compose version

Java Code Generator

Automatically generate of Java code. Design your web application based on Spring Boot, with a professional graphical interface.

https://jenerator.ir

remove java

1. Remove all the Java related packages (Sun, Oracle, OpenJDK, IcedTea plugins, GIJ):

   dpkg-query -W -f='${binary:Package}\n' | grep -E -e '^(ia32-)?(sun|oracle)-java' -e '^openjdk-' -e '^icedtea' -e '^(default|gcj)-j(re|dk)' -e '^gcj-(.*)-j(re|dk)' -e '^java-common' | xargs sudo apt-get -y remove
   sudo apt-get -y autoremove

2. Purge config files (careful. This command removed libsgutils2-2 and virtualbox config files too):

   dpkg -l | grep ^rc | awk '{print($2)}' | xargs sudo apt-get -y purge

3. Remove Java config and cache directory:

   sudo bash -c 'ls -d /home/*/.java' | xargs sudo rm -rf

4. Remove manually installed JVMs:

   sudo rm -rf /usr/lib/jvm/*

5. Remove Java entries, if there is still any, from the alternatives:

   for g in ControlPanel java java_vm javaws jcontrol jexec keytool mozilla-javaplugin.so orbd pack200 policytool rmid rmiregistry servertool tnameserv unpack200 appletviewer apt extcheck HtmlConverter idlj jar jarsigner javac javadoc javah javap jconsole jdb jhat jinfo jmap jps jrunscript jsadebugd jstack jstat jstatd native2ascii rmic schemagen serialver wsgen wsimport xjc xulrunner-1.9-javaplugin.so; do sudo update-alternatives --remove-all $g; done

6. Search for possible remaining Java directories:

   sudo updatedb
   sudo locate -b '\pack200'

   If the command above produces any output like /path/to/jre1.6.0_34/bin/pack200 remove the directory that is parent of bin, like this: sudo rm -rf /path/to/jre1.6.0_34.

https://askubuntu.com/questions/84483/how-to-completely-uninstall-java

https://www.tecmint.com/install-mysql-8-in-ubuntu/

راه اندازی سرور ubuntu

• sudo apt update
• sudo apt install nginx
• sudo ufw app list
• sudo systemctl enable nginx

• apt install mariadb-server
• systemctl status mariadb
• mysql_secure_installation
• mysql -u root -p

Mariadb

• FLUSH PRIVILEGES;
• UPDATE mysql.user SET password = PASSWORD('pass') WHERE user = 'root';
• UPDATE mysql.user SET authentication_string = '' WHERE user = 'root';
• UPDATE mysql.user SET plugin = '' WHERE user = 'root';

Mysql

• UPDATE mysql.user SET authentication_string = PASSWORD('new_password') WHERE user = 'root';
• UPDATE mysql.user SET plugin = 'mysql_native_password' WHERE user = 'root';

java

• apt install openjdk-8-jre-headless

انتقال فایل بین دو سرور

ابتدا نیاز است که فایل ها رو فشرده کنیم تا سرعت انتقال افزایش یابد.

با استفاده از دستور زیر پوشه جاری فشرده میشود

# tar cvzf backup.tar.gz /var/www

سپس با استفاده از دستور زیر فایل را به سرور مورد نظر انتقال میدهیم

Copy the file "foobar.txt" from a remote host to the local host

$ scp [e-mail]:foobar.txt /some/local/directory

Copy the file "foobar.txt" from the local host to a remote host

$ scp foobar.txt [e-mail]:/some/remote/directory

Copy the directory "foo" from the local host to a remote host's directory "bar"

$ scp -r foo [e-mail]:/some/remote/directory/bar

Copy the file "foobar.txt" from remote host "rh1.edu" to remote host "rh2.edu"

$ scp [e-mail]:/some/remote/directory/foobar.txt \

[e-mail]:/some/remote/directory/

Copying the files "foo.txt" and "bar.txt" from the local host to your home directory on the remote host

$ scp foo.txt bar.txt [e-mail]:~

Copy the file "foobar.txt" from the local host to a remote host using port 2264

$ scp -P 2264 foobar.txt [e-mail]:/some/remote/directory

Copy multiple files from the remote host to your current directory on the local host

$ scp [e-mail]:/some/remote/directory/\{a,b,c\} .

$ scp [e-mail]:~/\{foo.txt,bar.txt\} .

سپس با استفاده از دستور زیر محتوای فایل فشرده را استخراج میکنیم

# tar -xzf backup.tar.gz