lrbnew

Decoding the data in /proc/net/tcp:

Linux 5.x  /proc/net/tcp
Linux 6.x  /proc/PID/net/tcp

Given a socket:

$ ls -l  /proc/24784/fd/11
lrwx------ 1 jkstill dba 64 Dec  4 16:22 /proc/24784/fd/11 -> socket:[15907701]

lrbnew

#!/bin/bash
# This script helps to create a develop docker swarm cluster in one command
# For explanations and details, please refer to https://docs.docker.com/engine/userguide/networking/get-started-overlay/

set -e

create_kv() {
    echo Creating kvstore machine.
    docker-machine create -d virtualbox \
        kvstore

lrbnew

---
- name: Install docker
  gather_facts: No
  hosts: default

  tasks:
    - name: Install yum utils
      yum:
        name: yum-utils
        state: latest