add: docker_server role

roles/docker_server/README.md

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+# Install docker deamon on debian
+
+

roles/docker_server/defaults/main.yml

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+docker_install_extra_scripts: True

roles/docker_server/files/ddu

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+#!/bin/bash
+
+
+docker ps --format '{{ .Size }}\t{{ .ID }}\t{{.Image}}\t{{ .Names }}' | sort -h | column -t
+
+# Ways to clean disk space:
+# docker system prune -a
+# docker volume rm $(docker volume ls -qf dangling=true)

roles/docker_server/files/dip

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+#!/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

roles/docker_server/files/netshoot

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+#!/bin/bash
+
+# Start a docker netshoot container
+
+set -eu
+
+main ()
+{
+  local container=${1-}
+  local img=${2:-nicolaka/netshoot}
+  local args=
+  local opts=
+
+  if [[ -n "$container" ]]; then
+    opts="--network container:$container"
+  fi
+  if [[ "$container" == "$img" ]]; then
+    img=$(docker inspect --format='{{.Image}}' "$container")
+  fi
+
+  docker run --rm -ti -v "$HOME/.cache/netshoot:/root" $opts $img /bin/bash
+}
+
+main $@
+

roles/docker_server/files/nip

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+#!/bin/bash
+
+main ()
+  {
+  # List all Docker networks
+  networks=$(docker network ls -q --format '{{.Name}},{{.ID}}' | sort | cut -d, -f 2)
+
+  # 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"
+      for container in $containers; do
+          local cont=$(docker network inspect --format="{{ index .Containers \"$container\" | json }}" "$network" )
+          local name=$(jq -r ".Name" <<< "$cont")
+          local ip=$(jq -r ".IPv4Address" <<< "$cont")
+          printf "  %-30s %s\n" "$ip" "$name"
+
+      done
+  done
+
+}
+
+main $@
+

roles/docker_server/tasks/main.yml

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+
+
+# Use of apt_key plugin is deprecated, see: https://www.jeffgeerling.com/blog/2022/aptkey-deprecated-debianubuntu-how-fix-ansible
+- name: Add Docker apt repository key
+  ansible.builtin.get_url:
+    url: https://download.docker.com/linux/debian/gpg
+    dest: /etc/apt/trusted.gpg.d/docker.asc
+    mode: '0644'
+
+- name: Add Docker Repository
+  apt_repository:
+    filename: docker
+    repo: deb https://download.docker.com/linux/debian {{ ansible_distribution_release }} stable
+    state: present
+
+- name: Ensure docker packages are installed
+  apt:
+    state: present
+    name:
+      - docker-ce
+      - docker-ce-cli
+      - containerd.io
+      - docker-buildx-plugin
+      - docker-compose-plugin
+
+- name: "Copy docker helper scripts to /usr/local/bin: ({{ docker_install_extra_scripts | ternary('present', 'absent') }})"
+  ansible.builtin.copy:
+    src: "{{ item }}"
+    dest: /usr/local/bin/
+    mode: '0755'
+  with_fileglob:
+    - files/*
+  when: "docker_install_extra_scripts"
+
+- name: Ensure extra packages are installed
+  apt:
+    state: present
+    name:
+      - jq  # For nip support
+  when: "docker_install_extra_scripts"