diff --git a/CHANGELOG.md b/CHANGELOG.md
index 55b4545..45c457f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased](../../releases/tag/X.Y.Z)
 
+### Added
+
+- Add support to install Docker Ansible module dependencies ([#48](../../issues/48))
+- Add support to install packages after install via PiP or OS package manager ([#49](../../issues/49))
+
 ## [1.7.2](../../releases/tag/1.7.2) - 2018-09-27
 
 ### Fixed
diff --git a/README.md b/README.md
index 8f9020b..9546065 100644
--- a/README.md
+++ b/README.md
@@ -61,6 +61,19 @@ docker_latest_version: true
 docker_pkg_name: docker-ce
 # If below variable is set to true it will remove older Docker installation before Docker CE.
 docker_remove_pre_ce: false
+# Ensures 'docker_container' Ansible module dependencies are installed
+docker_container_deps: false
+# Ensures 'docker_service' Ansible module dependencies are installed
+docker_service_deps: false
+# Ensures 'docker_stack' Ansible module dependencies are installed
+docker_stack_deps: false
+# Ensure PiP is upgraded before further use.
+# IMPORTANT! Be carful to set this because it might cause dependecy problems
+docker_pip_upgrade: false
+# Additional PiP packages to install after Docker is configured and started
+docker_additional_packages_pip: []
+# Additional OS packages to install after Docker is configured and started
+docker_additional_packages_os: []
 ```
 
 ## Dependencies
diff --git a/defaults/main.yml b/defaults/main.yml
index 3297d46..c27a90d 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -1,6 +1,4 @@
 ---
-# defaults file for ansible-role-docker-ce
-
 # Daemon configuration (https://docs.docker.com/engine/reference/commandline/dockerd/)
 # Example:
 # docker_daemon_config:
@@ -32,3 +30,16 @@ docker_latest_version: true
 docker_pkg_name: docker-ce
 # If below variable is set to true it will remove older Docker installation before Docker CE.
 docker_remove_pre_ce: false
+# Ensures 'docker_container' Ansible module dependencies are installed
+docker_container_deps: false
+# Ensures 'docker_service' Ansible module dependencies are installed
+docker_service_deps: false
+# Ensures 'docker_stack' Ansible module dependencies are installed
+docker_stack_deps: false
+# Ensure PiP is upgraded before further use.
+# IMPORTANT! Be carful to set this because it might cause dependecy problems
+docker_pip_upgrade: false
+# Additional PiP packages to install after Docker is configured and started
+docker_additional_packages_pip: []
+# Additional OS packages to install after Docker is configured and started
+docker_additional_packages_os: []
\ No newline at end of file
diff --git a/tasks/main.yml b/tasks/main.yml
index bd6e3ef..d9768af 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -67,3 +67,7 @@
 - name: Configure Docker
   include_tasks: configure-docker.yml
   tags: ["configure"]
+
+- name: Postinstall tasks
+  include_tasks: postinstall.yml
+  tags: ["install"]
\ No newline at end of file
diff --git a/tasks/postinstall.yml b/tasks/postinstall.yml
new file mode 100644
index 0000000..f8debff
--- /dev/null
+++ b/tasks/postinstall.yml
@@ -0,0 +1,61 @@
+---
+- name: Reset internal variables for additional packages to be installed
+  set_fact:
+    _docker_additional_packages_os: []
+    _docker_additional_packages_pip: []
+
+- name: Set facts to ensure 'docker_container' module works
+  set_fact:
+    _docker_additional_packages_pip: "{{ _docker_additional_packages_pip + docker_predefined_packages_pip[_docker_os_dist]['sdk'] }}"
+  when:
+    - docker_container_deps
+
+- name: Set facts to ensure 'docker_service' module works
+  set_fact:
+    _docker_additional_packages_pip: "{{ _docker_additional_packages_pip + docker_predefined_packages_pip[_docker_os_dist]['compose'] }}"
+  when:
+    - docker_service_deps
+
+- name: Set facts to ensure 'docker_stack' module works
+  set_fact:
+    _docker_additional_packages_pip: "{{ _docker_additional_packages_pip + docker_predefined_packages_pip[_docker_os_dist]['stack'] }}"
+  when:
+    - docker_stack_deps
+
+- name: Set facts with additional package to be installed
+  set_fact:
+    _docker_additional_packages_pip: "{{ _docker_additional_packages_pip + docker_additional_packages_pip }}"
+    _docker_additional_packages_os: "{{ _docker_additional_packages_os + docker_additional_packages_os }}"
+
+- name: Set facts to ensure PiP is installed if required
+  set_fact:
+    _docker_additional_packages_os: "{{ _docker_additional_packages_os + ['python-pip', 'python-virtualenv'] }}"
+  when:
+    - _docker_additional_packages_pip | length > 0
+
+- name: Install additional packages (OS package manager)
+  become: true
+  package:
+    name: "{{ item }}"
+    state: present
+  with_items:
+    - "{{ _docker_additional_packages_os }}"
+  when: _docker_additional_packages_os | length > 0
+
+- name: Upgrade PiP
+  become: true
+  pip:
+    name: pip
+    state: forcereinstall
+  when: docker_pip_upgrade
+
+- name: Install additional packages (PiP)
+  become: true
+  pip:
+    name: "{{ item }}"
+    state: present
+  with_items:
+    - "{{ _docker_additional_packages_pip }}"
+  when: _docker_additional_packages_pip | length > 0
+  environment:
+    PYTHONWARNINGS: ignore
\ No newline at end of file
diff --git a/tests/Vagrantfile b/tests/Vagrantfile
index 50a1938..8b832ac 100644
--- a/tests/Vagrantfile
+++ b/tests/Vagrantfile
@@ -5,8 +5,16 @@ require 'yaml'
 
 current_dir    = File.dirname(File.expand_path(__FILE__))
 configs        = YAML.load_file("#{current_dir}/vagrant_config.yml")
-config_key     = ENV['CONFIG_KEY'] || configs['configs']['use']
-vagrant_config = configs['configs'][config_key]
+vagrant_config={}
+if ENV.has_key?('CI')
+  config_key = "CI"
+  vagrant_config['box'] = ENV['VAGRANT_BOX']
+  vagrant_config['prep_yml'] = ENV['VAGRANT_PREP_YML']
+  vagrant_config['test_yml'] = ENV['VAGRANT_TEST_YML']
+else
+  config_key = ENV['CONFIG_KEY'] || configs['configs']['use']
+  vagrant_config = configs['configs'][config_key]
+end
 
 # Plugins:
 #   vagrant plugin install vagrant-vbguest
@@ -29,6 +37,8 @@ Vagrant.configure("2") do |config|
   # Print config in use
   config.vm.provision "shell",
     inline: "echo '" + config_key + "' > /var/tmp/provisioning-config"
+  config.vm.provision "shell",
+    inline: "echo '--> Using configuration key: " + config_key + "'"
 
   # Prepare Ansible roles directory
   config.vm.provision "shell",
diff --git a/tests/ci-test.sh b/tests/ci-test.sh
index b64c242..1c504d8 100644
--- a/tests/ci-test.sh
+++ b/tests/ci-test.sh
@@ -1,22 +1,4 @@
 #!/usr/bin/env bash
-YAML_INC_FILE=yamlparser.sh.inc
-if [[ ! -f "$YAML_INC_FILE" ]]; then
-  echo "Fetching YAML parsing script..."
-  wget -O $YAML_INC_FILE -q https://raw.githubusercontent.com/jasperes/bash-yaml/master/yaml.sh
-fi
-. $YAML_INC_FILE
-
-UBUNTU_ON_WIN=$(uname -a | grep Microsoft)
-if [[ $? -eq 0 ]]; then
-  echo "Ubuntu on Windows - assuming Vagrant is installed in Windows."
-  VAGRANT_CMD=vagrant.exe
-  # To share CONFIG_KEY to Windows environment
-  export CONFIG_KEY=
-  export WSLENV=CONFIG_KEY/w
-else
-  VAGRANT_CMD=vagrant
-fi
-
 BLDRED='\033[1;31m'
 BLDGRN='\033[1;32m'
 BLDBLU='\033[1;34m'
@@ -45,6 +27,29 @@ RedText() {
   printf "%b\n" "${BLDRED}$1${TXTRST}"
 }
 
+Info() {
+  printf "%b\n" "${BLDBLU}[INFO]${TXTRST} $1"
+}
+
+SetupYamlParser() {
+  YAML_INC_FILE=yamlparser.sh.inc
+  if [[ ! -f "$YAML_INC_FILE" ]]; then
+    Info "Fetching YAML parsing script..."
+    wget -O $YAML_INC_FILE -q https://raw.githubusercontent.com/jasperes/bash-yaml/master/yaml.sh
+  fi
+  . $YAML_INC_FILE
+}
+
+DetectWSL() {
+  UBUNTU_ON_WIN=$(uname -a | grep Microsoft)
+  if [[ $? -eq 0 ]]; then
+    Info "Ubuntu on Windows - assuming Vagrant is installed in Windows."
+    VAGRANT_CMD=vagrant.exe
+  else
+    VAGRANT_CMD=vagrant
+  fi
+}
+
 VagrantExists() {
   if ! vagrant_loc="$(type -p $VAGRANT_CMD)" || [[ -z $vagrant_loc ]]; then
     echo "1"
@@ -89,10 +94,9 @@ VagrantBoxAdd() {
 }
 
 DownloadBoxes() {
-  echo "Downloading boxes..."
-  boxes=$(parse_yaml vagrant_config.yml | grep _box | cut -d= -f2 | sed 's/[\(\"\)]//g' | sed "s/'//g" | sort | uniq)
+  Info "Downloading boxes..."
   exitCode=0
-  for box in $boxes; do
+  for box in ${boxes[*]}; do
     if [[ "$box" != *"$LIMIT"* ]]; then
       Skip "Download $box"
       continue
@@ -109,36 +113,50 @@ DownloadBoxes() {
 }
 
 ExecuteTests() {
-  echo "Starting tests..."
-  configs=$(parse_yaml vagrant_config.yml | grep _box | awk '{split($0,a,"_box"); $1=a[1]; split($1,b,"configs_"); $2=b[2];  print $2}')
-  exitCode=0
-  for config in $configs; do
-    CONFIG_KEY=$config
-    export CONFIG_KEY
-    if [[ "$CONFIG_KEY" != *"$LIMIT"* ]]; then
-      Skip "$CONFIG_KEY"
-      continue
-    fi
-    VagrantUp
-    exitCode=$?
-    VagrantDestroy
-    if [[ $exitCode == "0" ]]; then
-      Pass "Test $CONFIG_KEY"
-    else
-      Fail "Test $CONFIG_KEY"
-      break
-    fi
+  Info "Starting tests..."
+  #configs=$(parse_yaml vagrant_config.yml | grep _box | awk '{split($0,a,"_box"); $1=a[1]; split($1,b,"configs_"); $2=b[2];  print $2}')
+  configs=
+  for index in $(seq 0 `expr ${#tests__name[@]} - 1`); do
+    for box in ${boxes[*]}; do
+      test_name=${tests__name[$index]}
+      WSLENV=CI:VAGRANT_BOX:VAGRANT_PREP_YML:VAGRANT_TEST_YML
+      CI=1
+      VAGRANT_BOX=$box
+      VAGRANT_PREP_YML=${tests__prep_yml[$index]}
+      VAGRANT_TEST_YML=${tests__test_yml[$index]}
+      if [[ "$test_name" != *"$LIMIT"* ]]; then
+        Skip "Test: $test_name"
+        continue
+      fi
+      Info "Test: ${tests__name[$index]} [$box]"
+      export WSLENV CI VAGRANT_BOX VAGRANT_PREP_YML VAGRANT_TEST_YML
+      VagrantUp
+      exitCode=$?
+      VagrantDestroy
+      if [[ $exitCode == "0" ]]; then
+        Pass "Test: $test_name"
+      else
+        Fail "Test: $test_name"
+        break
+      fi
+    done
   done
-  echo "Ended with exit code $exitCode"
+  exitCode=0
+  Info "Ended with exit code $exitCode"
   return $exitCode
 }
 
+SetupYamlParser
+DetectWSL
+
 LIMIT=$1
 
+create_variables vagrant_config.yml
+
 if [[ "$SKIP_DOWNLOAD" == "" ]]; then
   DownloadBoxes
   downloadResult=$?
-  echo "Download complete!"
+  Info "Download complete!"
   if [[ "$DOWNLOAD_ONLY" != "" ]]; then
     exit $downloadResult
   fi
diff --git a/tests/test_postinstall.yml b/tests/test_postinstall.yml
new file mode 100644
index 0000000..ad03fa4
--- /dev/null
+++ b/tests/test_postinstall.yml
@@ -0,0 +1,24 @@
+---
+- hosts: test-host
+  vars:
+    docker_container_deps: true
+    docker_service_deps: true
+    docker_stack_deps: true
+  roles:
+    - haxorof.docker-ce
+  post_tasks:
+    - name: Test hello container
+      become: yes
+      docker_container:
+        name: hello
+        image: hello-world
+
+    - name: Test hello service
+      become: yes
+      docker_service:
+        project_name: hello
+        definition:
+          version: '3'
+          services:
+            hello:
+              image: "hello-world"
diff --git a/tests/vagrant_config.yml b/tests/vagrant_config.yml
index 3fce204..8d3a034 100644
--- a/tests/vagrant_config.yml
+++ b/tests/vagrant_config.yml
@@ -1,3 +1,43 @@
+boxes:
+  - geerlingguy/centos7
+  - geerlingguy/ubuntu1404
+  - geerlingguy/ubuntu1604
+  - geerlingguy/ubuntu1804
+  - geerlingguy/debian8
+  - geerlingguy/debian9
+tests:
+  -
+    name: No configuration
+    prep_yml: prepare.yml
+    test_yml: test_defaults.yml
+  -
+    name: Simple configuration
+    prep_yml: prepare.yml
+    test_yml: test_config.yml
+  -
+    name: Configuration via file
+    prep_yml: prepare.yml
+    test_yml: test_config_file.yml
+  -
+    name: Advanced configuration
+    prep_yml: prepare.yml
+    test_yml: test_config_adv.yml
+  -
+    name: Storage configuration
+    prep_yml: prepare_storage.yml
+    test_yml: test_config_storage.yml
+  -
+    name: Postinstall
+    prep_yml: prepare.yml
+    test_yml: test_postinstall.yml
+  -
+    name: Old version of Docker
+    prep_yml: prepare.yml
+    test_yml: test_old_version.yml
+  -
+    name: Issue 42
+    prep_yml: prepare.yml
+    test_yml: test_issue_42.yml
 configs:
   use: 'defaults_centos'
   # CentOS 7
@@ -11,6 +51,31 @@ configs:
     box: 'geerlingguy/centos7'
     prep_yml: prepare.yml
     test_yml: test_defaults.yml
+  # Postinstall tests
+  postinstall_centos:
+    box: 'geerlingguy/centos7'
+    prep_yml: prepare.yml
+    test_yml: test_postinstall.yml
+  postinstall_ubuntu_trusty:
+    box: 'geerlingguy/ubuntu1404'
+    prep_yml: prepare.yml
+    test_yml: test_postinstall.yml
+  postinstall_ubuntu_xenial:
+    box: 'geerlingguy/ubuntu1604'
+    prep_yml: prepare.yml
+    test_yml: test_postinstall.yml
+  postinstall_ubuntu_bionic:
+    box: 'geerlingguy/ubuntu1804'
+    prep_yml: prepare.yml
+    test_yml: test_postinstall.yml
+  postinstall_debian_jessie:
+    box: 'geerlingguy/debian8'
+    prep_yml: prepare.yml
+    test_yml: test_postinstall.yml
+  postinstall_debian_stretch:
+    box: 'geerlingguy/debian9'
+    prep_yml: prepare.yml
+    test_yml: test_postinstall.yml
   # Config tests
   config_centos:
     box: 'geerlingguy/centos7'
diff --git a/vars/main.yml b/vars/main.yml
index 98d76b2..925f921 100644
--- a/vars/main.yml
+++ b/vars/main.yml
@@ -77,3 +77,47 @@ docker_old_packages:
     - docker
     - docker-engine
     - docker.io
+
+docker_predefined_packages_os: []
+
+docker_predefined_packages_pip:
+  CentOS:
+    sdk:
+      - docker
+    compose:
+      - docker-compose
+    stack:
+      - jsondiff
+      - pyyaml
+  RedHat:
+    sdk:
+      - docker
+    compose:
+      - docker-compose
+    stack:
+      - jsondiff
+      - pyyaml
+  Fedora:
+    sdk:
+      - docker
+    compose:
+      - docker-compose
+    stack:
+      - jsondiff
+      - pyyaml
+  Ubuntu:
+    sdk:
+      - docker
+    compose:
+      - docker-compose
+    stack:
+      - jsondiff
+      - pyyaml
+  Debian:
+    sdk:
+      - docker
+    compose:
+      - docker-compose
+    stack:
+      - jsondiff
+      - pyyaml