CI CD

CI_CD/Jenkins_install.md

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+Install by docs from https://www.cherryservers.com/blog/install-jenkins-ubuntu
+
+## Prepare installation
+
+Открываю нужный сервер
+```sh
+wsl
+```
+```sh
+sudo apt update
+```
+```sh
+sudo apt upgrade
+```
+```sh
+	sudo apt install openjdk-21-jdk openjdk-21-jre -y &&
+	java -version
+```
+## Add Jenkins Repository
+
+```sh
+sudo wget -O /usr/share/keyrings/jenkins-keyring.asc https://pkg.jenkins.io/debian-stable/jenkins.io-2023.key
+```
+Next, add the Jenkins repository to your system’s sources.list:
+```sh
+sudo sh -c 'echo deb [signed-by=/usr/share/keyrings/jenkins-keyring.asc] https://pkg.jenkins.io/debian binary/ > /etc/apt/sources.list.d/jenkins.list'
+```
+
+```sh
+sudo apt update
+```
+
+```sh
+sudo apt install jenkins -y
+```
+If the software was installed incorrectly, you can reinstall it after uninstalling it first.:
+```sh
+sudo apt remove --purge jenkins
+```
+
+```sh
+jenkins --version
+```
+
+Try run jenkins without service
+```sh
+sudo -u jenkins /usr/bin/jenkins --httpPort=8081 --httpListenAddress=0.0.0.0
+```
+
+```sh
+sudo mcedit /lib/systemd/system/jenkins.service
+```
+
+```sh
+sudo systemctl start jenkins &&
+sudo systemctl enable jenkins &&
+sudo systemctl status jenkins
+```
+
+```sh
+sudo journalctl -xeu jenkins.service | tail -n 50
+```
+Если порт занят, проверяем кем:
+```sh
+sudo lsof -i :8081
+```
+Переопределяем порт:
+```sh
+sudo mcedit /etc/default/jenkins
+```
+```conf
+HTTP_PORT=8081
+```
+
+```sh
+sudo systemctl restart jenkins
+```
+
+```sh
+start http://127.0.0.1:8081
+```
+
+
+See what port in locked
+```sh
+netstat -tpln
+```