Video90

docker-compose.yml

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+version: '3.8'
+
+services:
+  nginx:
+    build: .
+    container_name: nginx-lb
+    ports:
+      - "80:80"
+    depends_on:
+      - backend1
+      - backend2
+      - backend3
+
+  backend1:
+    image: ghcr.io/benc-uk/python-demoapp
+    container_name: backend1
+    expose:
+      - "5000"
+
+  backend2:
+    image: ghcr.io/benc-uk/python-demoapp
+    container_name: backend2
+    expose:
+      - "5001"
+
+  backend3:
+    image: ghcr.io/benc-uk/python-demoapp
+    container_name: backend3
+    expose:
+      - "5002"

dockercompose.sh

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+sudo curl -L "https://github.com/docker/compose/releases/download/1.29.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
+
+ls /usr/local/bin/
+
+sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose
+
+sudo chmod +x /usr/local/bin/docker-compose
+
+docker-compose version

nginx.conf

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+upstream backend {
+    server backend1:5000;
+    server backend2:5001;
+    server backend3:5002;
+}
+
+server {
+    listen 80;
+
+    location / {
+        proxy_pass http://backend;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+}

tomcat.yml

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+---
+- name: Setup Tomcat
+  hosts: all
+  become: yes
+
+  tasks:
+
+    - name: Download tomcat from dlcdn
+      get_url:
+        url: "https://dlcdn.apache.org/tomcat/tomcat-10/v10.1.35/bin/apache-tomcat-10.1.35.tar.gz"
+        dest: "/root/"
+
+    - name: untar the apache file
+      command: tar -zxvf apache-tomcat-10.1.35.tar.gz
+
+    - name: Rename the tomcat
+      command: mv apache-tomcat-10.1.35 tomcat
+
+    - name: Install the latest available Java (OpenJDK)
+      yum:
+        name: java-17-amazon-corretto
+        state: present
+
+    - name: Setting the roles in tomcat-users.xml file
+      template:
+        src: tomcat-users.xml
+        dest: /root/tomcat/conf/tomcat-users.xml
+
+    - name: Delete two lines in context.xml
+      template:
+        src: context.xml
+        dest: /root/tomcat/webapps/manager/META-INF/context.xml
+
+    - name: Create Tomcat systemd Service File
+      copy:
+        dest: /etc/systemd/system/tomcat.service
+        content: |
+          [Unit]
+          Description=Apache Tomcat Server
+          After=network.target
+
+          [Service]
+          User=root
+          Group=root
+          Type=forking
+          Environment="JAVA_HOME=/usr/lib/jvm/jre"
+          Environment="CATALINA_HOME=/root/tomcat"
+          ExecStart=/root/tomcat/bin/startup.sh
+          ExecStop=/root/tomcat/bin/shutdown.sh
+          Restart=on-failure
+
+          [Install]
+          WantedBy=multi-user.target
+
+    - name: Reload systemd
+      systemd:
+        daemon_reload: yes
+
+    - name: Start tomcat Service
+      service:
+        name: tomcat
+        state: started
+        enabled: yes

tomcatgpt.yml

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+---
+- name: Setup Apache Tomcat
+  hosts: all
+  become: yes
+
+  tasks:
+
+    - name: Install Java 17 (Amazon Corretto)
+      yum:
+        name: java-17-amazon-corretto
+        state: present
+
+    - name: Download Apache Tomcat
+      get_url:
+        url: https://dlcdn.apache.org/tomcat/tomcat-10/v10.1.35/bin/apache-tomcat-10.1.35.tar.gz
+        dest: /root/apache-tomcat-10.1.35.tar.gz
+        mode: '0644'
+
+    - name: Extract Apache Tomcat
+      unarchive:
+        src: /root/apache-tomcat-10.1.35.tar.gz
+        dest: /root/
+        remote_src: yes
+        creates: /root/apache-tomcat-10.1.35
+
+    - name: Rename Tomcat directory
+      command: mv /root/apache-tomcat-10.1.35 /root/tomcat
+      args:
+        creates: /root/tomcat
+
+    - name: Copy tomcat-users.xml
+      template:
+        src: tomcat-users.xml
+        dest: /root/tomcat/conf/tomcat-users.xml
+        mode: '0644'
+
+    - name: Copy modified context.xml
+      template:
+        src: context.xml
+        dest: /root/tomcat/webapps/manager/META-INF/context.xml
+        mode: '0644'
+
+    - name: Create Tomcat systemd service
+      copy:
+        dest: /etc/systemd/system/tomcat.service
+        mode: '0644'
+        content: |
+          [Unit]
+          Description=Apache Tomcat Server
+          After=network.target
+
+          [Service]
+          Type=forking
+          User=root
+          Group=root
+
+          Environment="JAVA_HOME=/usr/lib/jvm/java-17-amazon-corretto"
+          Environment="CATALINA_HOME=/root/tomcat"
+          Environment="CATALINA_BASE=/root/tomcat"
+
+          ExecStart=/root/tomcat/bin/startup.sh
+          ExecStop=/root/tomcat/bin/shutdown.sh
+
+          Restart=on-failure
+
+          [Install]
+          WantedBy=multi-user.target
+
+    - name: Reload systemd daemon
+      systemd:
+        daemon_reload: yes
+
+    - name: Enable and start Tomcat
+      systemd:
+        name: tomcat
+        state: started
+        enabled: yes