Simple Nginx Conf for Microservices Application

########################################################################

# Main Nginx configuration file for Dockerized Microservices

#

# More information about the configuration options is available on 

# * the English wiki - http://wiki.nginx.org/Main

# * the Russian documentation - http://sysoev.ru/nginx/

#

#######################################################################

#----------------------------------------------------------------------

# Main Module - directives that cover basic functionality

#

# http://wiki.nginx.org/NginxHttpMainModule

#

#----------------------------------------------------------------------

user nginx;

worker_processes auto;

error_log /opt/nginx/logs/error.log;

#error_log /var/log/nginx/error.log notice;

#error_log /var/log/nginx/error.log info;

pid /var/run/nginx.pid;

#----------------------------------------------------------------------

# Events Module 

#

# http://wiki.nginx.org/NginxHttpEventsModule

#

#----------------------------------------------------------------------

events {

    worker_connections 2048;

}

#----------------------------------------------------------------------

# HTTP Core Module

#

# http://wiki.nginx.org/NginxHttpCoreModule 

#

#----------------------------------------------------------------------

http {

    include /opt/nginx/conf/mime.types;

    default_type application/octet-stream;

    log_format main '$remote_addr - $remote_user [$time_local] "$request" '

                      '$status $body_bytes_sent "$http_referer" '

                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log /opt/nginx/logs/access.log main;

    sendfile on;

    autoindex off;

    

    map $scheme $fastcgi_https {

        default off;

        https on;

    }

    keepalive_timeout 60;

    gzip on;

    gzip_comp_level 2;

    gzip_proxied any;

    gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;

    gzip_disable "msie6";

    gzip_vary on;

    gzip_min_length 1024;

    gzip_http_version 1.1;

    # gzip_static on;

    # Load config files from the /etc/nginx/conf.d directory

    # The default server is in conf.d/default.conf

    include /opt/nginx/conf/conf.d/*.conf;

    # include /etc/nginx/sites-enabled/*;

    # tcp_nopush on;

}

Run Two Systemd Services Alternately

To achieve the desired sequence where `app1` starts, runs for 10 minutes, then `app2` starts and runs for 10 minutes, and this cycle repeats, you can create two separate timer units and services, one for each application, and use a cyclic approach. Here's how you can do it:

1. Create two timer units, one for each application, with cyclic activation:

   `myapp1.timer`:

   ```ini

   [Unit]

   Description=Timer for My Application 1

   [Timer]

   OnBootSec=10min

   OnUnitInactiveSec=10min

   [Install]

   WantedBy=timers.target

   ```

   `myapp2.timer`:

   ```ini

   [Unit]

   Description=Timer for My Application 2

   [Timer]

   OnBootSec=20min

   OnUnitInactiveSec=10min

   [Install]

   WantedBy=timers.target

   ```

In this configuration, `myapp1.timer` is set to trigger `myapp1.service` 10 minutes after boot and every 10 minutes after it becomes inactive. `myapp2.timer` is set to trigger `myapp2.service` 20 minutes after boot and every 10 minutes after it becomes inactive.

2. Create two service units, one for each application:

   `myapp1.service`:

   ```ini

   [Unit]

   Description=My Application 1

   [Service]

   ExecStart=/path/to/app1

   Restart=always

   [Install]

   WantedBy=multi-user.target

   ```

   `myapp2.service`:

   ```ini

   [Unit]

   Description=My Application 2

   [Service]

   ExecStart=/path/to/app2

   Restart=always

   [Install]

   WantedBy=multi-user.target

   ```

Replace `/path/to/app1` and `/path/to/app2` with the actual paths to your application executables.

3. Enable and start both timer units:

   ```

   sudo systemctl enable myapp1.timer

   sudo systemctl enable myapp2.timer

   sudo systemctl start myapp1.timer

   sudo systemctl start myapp2.timer

   ```

With this setup, `app1` will start when the system boots, run for 10 minutes, then stop. After that, `app2` will start and run for 10 minutes, and the cycle repeats. This pattern continues indefinitely.