Docker Scripts

dip.sh

#!/bin/bash

# From: https://gist.github.com/ipedrazas/2c93f6e74737d1f8a791?permalink_comment_id=3704504#gistcomment-3704504

set -eu

function dip() {
        local cols='%-13s %-48s %-40s %-80s'
        _print_container_info() {
            local container_id
            local container_ports
            local container_ip
            local container_name
            container_id="${1}"
        
            container_ports=( $(docker port "$container_id" | grep -o "0.0.0.0:.*" | cut -f2 -d:) )
            container_name="$(docker inspect --format "{{ .Name }}" "$container_id" | sed 's/\///')"
            container_ip="$(docker inspect --format "{{range .NetworkSettings.Networks}}{{.IPAddress}} {{end}}" "$container_id" )"
            printf "$cols\n" "$container_id" "$container_name" "$container_ip" "${container_ports[*]}"
        }

        local container_id
        container_id="$1"
        printf "$cols\n" 'Container Id' 'Container Name' 'Container IP' 'Container Ports'
        if [ -z "$container_id" ]; then
            local container_id
            docker ps -a --format "{{.ID}}" | while read -r container_id ; do
                _print_container_info  "$container_id"
            done
        else
            _print_container_info  "$container_id"
        fi
}


dip

docker_scripts.md

List of useful docker scripts

• netshoot: Attach a netshoot container to existing instance
• dip: Docker IPs, show all containers IPs
• nip: Network IPs, show all containers IPs per networks
• dports: Docker ports, list all exposed ports

docker_scripts3.md

#!/bin/bash

# From: https://gist.github.com/ipedrazas/2c93f6e74737d1f8a791?permalink_comment_id=3704504#gistcomment-3704504

function dip() {
        local cols='%-13s %-48s %-40s %-80s'
        _print_container_info() {
            local container_id
            local container_ports
            local container_ip
            local container_name
            container_id="${1}"
        
            container_ports=( $(docker port "$container_id" | grep -o "0.0.0.0:.*" | cut -f2 -d:) )
            container_name="$(docker inspect --format "{{ .Name }}" "$container_id" | sed 's/\///')"
            container_ip="$(docker inspect --format "{{range .NetworkSettings.Networks}}{{.IPAddress}} {{end}}" "$container_id" )"
            printf "$cols\n" "$container_id" "$container_name" "$container_ip" "${container_ports[*]}"
        }

        local container_id
        container_id="$1"
        printf "$cols\n" 'Container Id' 'Container Name' 'Container IP' 'Container Ports'
        if [ -z "$container_id" ]; then
            local container_id
            docker ps -a --format "{{.ID}}" | while read -r container_id ; do
                _print_container_info  "$container_id"
            done
        else
            _print_container_info  "$container_id"
        fi
}


dip

dports.sh

#!/bin/bash

# List all containers with their exposed ports

set -eu

list_ports ()
{
  local raw=

  while IFS=';' read -r cont ports _ ; do
    #echo "Ports: $ports"
    ports=${ports//,/}

    for port in $ports; do
      if ! [[ "$port" =~ '->' ]]; then
        port=".->${port}"
      fi
      port=${port//->/ }
      echo -e "$port\t$cont"
    done
  done <<< $(docker container ls --format "{{.Names}};{{.Ports}}" -a)

}

main ()
{

  list_ports | sort | column -t
}

main $@

netshoot.sh

#!/bin/bash

# Start a docker netshoot container

set -eu

main ()
{
  local container=${1-}
  local args=
  local opts=

  if [[ -n "$container" ]]; then
    opts="--network container:$container"
  fi

  docker run --rm -ti -v "$HOME/.cache/netshoot:/root" $opts nicolaka/netshoot /bin/bash
}

main $@

nip.sh

#!/bin/bash

# Allow to list docker networks with their associated containers and IPs.
# Usage: Use optional extra argument to filter container names
# Syntax: nip [BASH_REGEX]
# Exemples:
#    nip
#    nip 'traefik'
#    nip 'traef|wordpress'
# Install: curl https://gist.githubusercontent.com/mrjk/d99b6cba40f16592e3f32f363de71cea/raw/e1e91f146cb5487c6c7bc7843b23d7d7fc311894/nip > /usr/local/bin/nip && chmod +x /usr/local/bin/nip
# Require: jq
# License: MIT

list_networks ()
  {
  local filter="${1:-.*}"
  # List all Docker networks
  local networks=$(docker network ls -q --format '{{.ID}}')

  # Loop through the networks and display the details
  for network in $networks; do
      local containers=$(docker network inspect --format='{{range $k, $v := .Containers}}{{$k}} {{end}}' "$network")
      local net_name=$(docker network inspect --format '{{ .Name }}' $network)
      printf "%-30s %s\n"  "$net_name" "$network"
      
      # Loop over each container
      for container in $containers; do
          local cont=$(docker network inspect --format="{{ index .Containers \"$container\" | json }}" "$network" )
          local name=$(jq -r ".Name" <<< "$cont")
          if [[ "$name" =~ $filter ]]; then
            local ip=$(jq -r ".IPv4Address" <<< "$cont")
            printf "  %-30s %s\n" "$ip" "$name"
          fi
      done
  done
}

list_networks ${@-}