added docker python code for virtualization

server/docker/docker_vm.py

@@ -0,0 +1,81 @@
+#!/usr/bin/env python3
+
+'''
+FUTURE RELEASE TO BE CONVERTED TO GO LANG
+'''
+
+import click
+import sys
+import docker
+import socket
+import uuid 
+import os
+
+# ----------------------------------------------- CLI flags --------------------------------------------------------
+
+@click.command()
+@click.option("--createvm", is_flag=True, help="Creates docker default VM")
+
+# -------------------------------------------------------------------------------------------------------------------
+# -------------------------------------- Actions when flags are called ----------------------------------------------
+
+def main(createvm):
+
+    # creates docker virtual machine 
+    if createvm:
+        name = str(uuid.uuid4())
+        build_run_contianer(name)
+
+    else:
+        ctx = click.get_current_context()
+        click.echo(ctx.get_help())
+
+# -------------------------------------------------------------------------------------------------------------------
+# ------------------------------------------ build and run Contianer ------------------------------------------------
+
+def build_run_contianer(name):
+    # Get docker information from environment variables
+    client = docker.from_env()
+
+    image_path = "./server/docker/containers/docker-ubuntu-sshd/"
+    tag_name = "p2p-ubuntu"
+    free_port = str(get_free_tcp_port())
+
+    # Change to JSON response 
+    vnc_free_port = str(get_free_tcp_port())
+
+    # Check if image is already exists (If already exists then delete and rebuild)
+    try:
+       client.images.get(tag_name)
+       print("------ Image exists (Running Docker container " + name + ") --------")
+
+       # Run the docker continer
+       # Running interactive version until log files for results are created
+       os.system("docker run -d=true --name="+ name +" --restart=always -p 6901:6901 -p "+ free_port +":22 -v=/opt/data:/data "+ tag_name +" /start")
+
+    except:
+       print("------ Image does not exists (building " + name + " and running image) ---------")
+
+       # client.images.build(path=framework_image_path,tag=tag_name,rm=True)
+       os.system("docker build -t " + tag_name + " " + image_path)
+
+       print("------ Running Docker contianer " + name + " ---------")
+       # Run the docker continer
+       # Running interactive version until log files for results are created
+       os.system("docker run -d=true --name="+ name +" --restart=always -p 6901:6901 -p "+ free_port +":22 -v=/opt/data:/data "+ tag_name +" /start")
+
+# -------------------------------------------------------------------------------------------------------------------
+# ------------------------------------------ Get free TCP port ------------------------------------------------------
+
+def get_free_tcp_port():
+     tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+     tcp.bind(('', 0))
+     addr, port = tcp.getsockname()
+     tcp.close()
+     return port
+
+
+# -------------------------------------------------------------------------------------------------------------------
+
+if __name__ == "__main__":
+    main()