diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
index 51ba466..8f96dfd 100644
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@@ -1,4 +1,6 @@
-# These are supported funding model platforms
+---
+# Feel free to add yourself if you maintain this repo
+# or participate in a way that you have the feeling that you belong there ;-)
 
 github: [do1jlr]
 liberapay: L3D
diff --git a/.github/workflows/ansible-archlinux-latest.yml b/.github/workflows/ansible-archlinux-latest.yml
index 9d651a3..e823f0c 100644
--- a/.github/workflows/ansible-archlinux-latest.yml
+++ b/.github/workflows/ansible-archlinux-latest.yml
@@ -1,5 +1,7 @@
+---
 name: Ansible check archlinux:latest
 
+# yamllint disable-line rule:truthy
 on: [push, pull_request]
 
 jobs:
@@ -8,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-    - name: ansible check with archlinux:latest
-      uses: roles-ansible/check-ansible-archlinux-latest-action@master
-      with:
-        targets: "./"
+      - name: ansible check with archlinux:latest
+        uses: roles-ansible/check-ansible-archlinux-latest-action@master
+        with:
+          targets: "./"
diff --git a/.github/workflows/ansible-centos-centos7.yml b/.github/workflows/ansible-centos-centos7.yml
index 90bff41..401d2c0 100644
--- a/.github/workflows/ansible-centos-centos7.yml
+++ b/.github/workflows/ansible-centos-centos7.yml
@@ -1,5 +1,7 @@
+---
 name: Ansible check centos:centos7
 
+# yamllint disable-line rule:truthy
 on: [push, pull_request]
 
 jobs:
@@ -8,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-    - name: ansible check with ubuntu:centos7
-      uses: roles-ansible/check-ansible-centos-centos7-action@master
-      with:
-        targets: "./"
+      - name: ansible check with ubuntu:centos7
+        uses: roles-ansible/check-ansible-centos-centos7-action@master
+        with:
+          targets: "./"
diff --git a/.github/workflows/ansible-centos-centos8.yml b/.github/workflows/ansible-centos-centos8.yml
index 5d7acc9..f20097b 100644
--- a/.github/workflows/ansible-centos-centos8.yml
+++ b/.github/workflows/ansible-centos-centos8.yml
@@ -1,5 +1,7 @@
+---
 name: Ansible check centos:centos8
 
+# yamllint disable-line rule:truthy
 on: [push, pull_request]
 
 jobs:
@@ -8,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-    - name: ansible check with ubuntu:centos8
-      uses: roles-ansible/check-ansible-centos-centos8-action@master
-      with:
-        targets: "./"
+      - name: ansible check with ubuntu:centos8
+        uses: roles-ansible/check-ansible-centos-centos8-action@master
+        with:
+          targets: "./"
diff --git a/.github/workflows/ansible-centos-latest.yml b/.github/workflows/ansible-centos-latest.yml
index de991de..94eb54b 100644
--- a/.github/workflows/ansible-centos-latest.yml
+++ b/.github/workflows/ansible-centos-latest.yml
@@ -1,5 +1,7 @@
+---
 name: Ansible check centos:latest
 
+# yamllint disable-line rule:truthy
 on: [push, pull_request]
 
 jobs:
@@ -8,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-    - name: ansible check with ubuntu:latest
-      uses: roles-ansible/check-ansible-centos-latest-action@master
-      with:
-        targets: "./"
+      - name: ansible check with ubuntu:latest
+        uses: roles-ansible/check-ansible-centos-latest-action@master
+        with:
+          targets: "./"
diff --git a/.github/workflows/ansible-debian-buster.yml b/.github/workflows/ansible-debian-buster.yml
index a7650ad..d76b02c 100644
--- a/.github/workflows/ansible-debian-buster.yml
+++ b/.github/workflows/ansible-debian-buster.yml
@@ -1,5 +1,7 @@
+---
 name: Ansible check debian:buster
 
+# yamllint disable-line rule:truthy
 on: [push, pull_request]
 
 jobs:
@@ -8,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-    - name: ansible check with debian:buster
-      uses: roles-ansible/check-ansible-debian-buster-action@master
-      with:
-        targets: "./"
+      - name: ansible check with debian:buster
+        uses: roles-ansible/check-ansible-debian-buster-action@master
+        with:
+          targets: "./"
diff --git a/.github/workflows/ansible-debian-latest.yml b/.github/workflows/ansible-debian-latest.yml
index d0ad4ca..f7eb5b6 100644
--- a/.github/workflows/ansible-debian-latest.yml
+++ b/.github/workflows/ansible-debian-latest.yml
@@ -1,5 +1,7 @@
+---
 name: Ansible check debian:latest
 
+# yamllint disable-line rule:truthy
 on: [push, pull_request]
 
 jobs:
@@ -8,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-    - name: ansible check with debian:latest
-      uses: roles-ansible/check-ansible-debian-latest-action@master
-      with:
-        targets: "./"
+      - name: ansible check with debian:latest
+        uses: roles-ansible/check-ansible-debian-latest-action@master
+        with:
+          targets: "./"
diff --git a/.github/workflows/ansible-debian-sid.yml b/.github/workflows/ansible-debian-sid.yml
index 72fe3a8..2e3215a 100644
--- a/.github/workflows/ansible-debian-sid.yml
+++ b/.github/workflows/ansible-debian-sid.yml
@@ -1,5 +1,7 @@
+---
 name: Ansible check debian:sid
 
+# yamllint disable-line rule:truthy
 on: [push, pull_request]
 
 jobs:
@@ -8,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-    - name: ansible check with debian:sid
-      uses: roles-ansible/check-ansible-debian-sid-action@master
-      with:
-        targets: "./"
+      - name: ansible check with debian:sid
+        uses: roles-ansible/check-ansible-debian-sid-action@master
+        with:
+          targets: "./"
diff --git a/.github/workflows/ansible-debian-stable.yml b/.github/workflows/ansible-debian-stable.yml
index 97076ae..e47f773 100644
--- a/.github/workflows/ansible-debian-stable.yml
+++ b/.github/workflows/ansible-debian-stable.yml
@@ -1,5 +1,7 @@
+---
 name: Ansible check debian:stable
 
+# yamllint disable-line rule:truthy
 on: [push, pull_request]
 
 jobs:
@@ -8,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-    - name: ansible check with debian:stable
-      uses: roles-ansible/check-ansible-debian-stable-action@master
-      with:
-        targets: "./"
+      - name: ansible check with debian:stable
+        uses: roles-ansible/check-ansible-debian-stable-action@master
+        with:
+          targets: "./"
diff --git a/.github/workflows/ansible-debian-stretch.yml b/.github/workflows/ansible-debian-stretch.yml
index 19ac5fb..c947cae 100644
--- a/.github/workflows/ansible-debian-stretch.yml
+++ b/.github/workflows/ansible-debian-stretch.yml
@@ -1,5 +1,7 @@
+---
 name: Ansible check debian:stretch
 
+# yamllint disable-line rule:truthy
 on: [push, pull_request]
 
 jobs:
@@ -8,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-    - name: ansible check with debian:stretch
-      uses: roles-ansible/check-ansible-debian-stretch-action@master
-      with:
-        targets: "./"
+      - name: ansible check with debian:stretch
+        uses: roles-ansible/check-ansible-debian-stretch-action@master
+        with:
+          targets: "./"
diff --git a/.github/workflows/ansible-fedora-31.yml b/.github/workflows/ansible-fedora-31.yml
index 6bbe44d..08502fe 100644
--- a/.github/workflows/ansible-fedora-31.yml
+++ b/.github/workflows/ansible-fedora-31.yml
@@ -1,5 +1,7 @@
+---
 name: Ansible check fedora:31
 
+# yamllint disable-line rule:truthy
 on: [push, pull_request]
 
 jobs:
@@ -8,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-    - name: ansible check with fedora:31
-      uses: roles-ansible/check-ansible-fedora-31-action@master
-      with:
-        targets: "./"
+      - name: ansible check with fedora:31
+        uses: roles-ansible/check-ansible-fedora-31-action@master
+        with:
+          targets: "./"
diff --git a/.github/workflows/ansible-fedora-32.yml b/.github/workflows/ansible-fedora-32.yml
index 70fc147..e362dd4 100644
--- a/.github/workflows/ansible-fedora-32.yml
+++ b/.github/workflows/ansible-fedora-32.yml
@@ -1,5 +1,7 @@
+---
 name: Ansible check fedora:32
 
+# yamllint disable-line rule:truthy
 on: [push, pull_request]
 
 jobs:
@@ -8,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-    - name: ansible check with fedora:32
-      uses: roles-ansible/check-ansible-fedora-32-action@master
-      with:
-        targets: "./"
+      - name: ansible check with fedora:32
+        uses: roles-ansible/check-ansible-fedora-32-action@master
+        with:
+          targets: "./"
diff --git a/.github/workflows/ansible-fedora-33.yml b/.github/workflows/ansible-fedora-33.yml
index 6032811..70c52ad 100644
--- a/.github/workflows/ansible-fedora-33.yml
+++ b/.github/workflows/ansible-fedora-33.yml
@@ -1,5 +1,7 @@
+---
 name: Ansible check fedora:33
 
+# yamllint disable-line rule:truthy
 on: [push, pull_request]
 
 jobs:
@@ -8,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-    - name: ansible check with fedora:33
-      uses: roles-ansible/check-ansible-fedora-33-action@master
-      with:
-        targets: "./"
+      - name: ansible check with fedora:33
+        uses: roles-ansible/check-ansible-fedora-33-action@master
+        with:
+          targets: "./"
diff --git a/.github/workflows/ansible-fedora-latest.yml b/.github/workflows/ansible-fedora-latest.yml
index 8b14097..7cfbdf7 100644
--- a/.github/workflows/ansible-fedora-latest.yml
+++ b/.github/workflows/ansible-fedora-latest.yml
@@ -1,5 +1,7 @@
+---
 name: Ansible check fedora:latest
 
+# yamllint disable-line rule:truthy
 on: [push, pull_request]
 
 jobs:
@@ -8,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-    - name: ansible check with fedora:latest
-      uses: roles-ansible/check-ansible-fedora-latest-action@master
-      with:
-        targets: "./"
\ No newline at end of file
+      - name: ansible check with fedora:latest
+        uses: roles-ansible/check-ansible-fedora-latest-action@master
+        with:
+          targets: "./"
diff --git a/.github/workflows/ansible-linting-check.yml b/.github/workflows/ansible-linting-check.yml
index 712c76f..41dcb97 100644
--- a/.github/workflows/ansible-linting-check.yml
+++ b/.github/workflows/ansible-linting-check.yml
@@ -1,5 +1,7 @@
+---
 name: Ansible Lint check
 
+# yamllint disable-line rule:truthy
 on: [push, pull_request]
 
 jobs:
@@ -8,13 +10,13 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-    - name: Lint Ansible Playbook
-      uses: ansible/ansible-lint-action@master
-      with:
-        targets: "."
-        # [required]
-        # Paths to ansible files (i.e., playbooks, tasks, handlers etc..)
-        args: ""
-        # [optional]
+      - name: Lint Ansible Playbook
+        uses: ansible/ansible-lint-action@master
+        with:
+          targets: "."
+          # [required]
+          # Paths to ansible files (i.e., playbooks, tasks, handlers etc..)
+          args: ""
+          # [optional]
diff --git a/.github/workflows/ansible-ubuntu-bionic.yml b/.github/workflows/ansible-ubuntu-bionic.yml
index aea24a2..0f9edd8 100644
--- a/.github/workflows/ansible-ubuntu-bionic.yml
+++ b/.github/workflows/ansible-ubuntu-bionic.yml
@@ -1,5 +1,7 @@
+---
 name: Ansible check ubuntu:bionic
 
+# yamllint disable-line rule:truthy
 on: [push, pull_request]
 
 jobs:
@@ -8,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-    - name: ansible check with ubuntu:bionic
-      uses: roles-ansible/check-ansible-ubuntu-bionic-action@master
-      with:
-        targets: "./"
+      - name: ansible check with ubuntu:bionic
+        uses: roles-ansible/check-ansible-ubuntu-bionic-action@master
+        with:
+          targets: "./"
diff --git a/.github/workflows/ansible-ubuntu-latest.yml b/.github/workflows/ansible-ubuntu-latest.yml
index 2e34685..b9544a5 100644
--- a/.github/workflows/ansible-ubuntu-latest.yml
+++ b/.github/workflows/ansible-ubuntu-latest.yml
@@ -1,5 +1,7 @@
+---
 name: Ansible check ubuntu:latest
 
+# yamllint disable-line rule:truthy
 on: [push, pull_request]
 
 jobs:
@@ -8,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-    - name: ansible check with ubuntu:latest
-      uses: roles-ansible/check-ansible-ubuntu-latest-action@master
-      with:
-        targets: "./"
+      - name: ansible check with ubuntu:latest
+        uses: roles-ansible/check-ansible-ubuntu-latest-action@master
+        with:
+          targets: "./"
diff --git a/.github/workflows/ansible-ubuntu-trusty.yml b/.github/workflows/ansible-ubuntu-trusty.yml
index a18c397..6cde8b8 100644
--- a/.github/workflows/ansible-ubuntu-trusty.yml
+++ b/.github/workflows/ansible-ubuntu-trusty.yml
@@ -1,5 +1,7 @@
+---
 name: Ansible check ubuntu:trusty
 
+# yamllint disable-line rule:truthy
 on: [push, pull_request]
 
 jobs:
@@ -8,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-    - name: ansible check with ubuntu:trusty
-      uses: roles-ansible/check-ansible-ubuntu-trusty-action@master
-      with:
-        targets: "./"
+      - name: ansible check with ubuntu:trusty
+        uses: roles-ansible/check-ansible-ubuntu-trusty-action@master
+        with:
+          targets: "./"
diff --git a/.github/workflows/yamllint.yaml b/.github/workflows/yamllint.yaml
new file mode 100644
index 0000000..39c49f8
--- /dev/null
+++ b/.github/workflows/yamllint.yaml
@@ -0,0 +1,22 @@
+---
+name: 'Yamllint GitHub Actions'
+
+# yamllint disable-line rule:truthy
+on: [push, pull_request]
+
+jobs:
+  yamllint:
+    name: 'Yamllint'
+    runs-on: ubuntu-latest
+    steps:
+      - name: 'Checkout'
+        uses: actions/checkout@master
+      - name: 'Yamllint'
+        uses: karancode/yamllint-github-action@master
+        with:
+          yamllint_file_or_dir: '.'
+          yamllint_config_filepath: './.yamllint'
+          yamllint_strict: false
+          yamllint_comment: true
+#       env:
+#         GITHUB_ACCESS_TOKEN: ${{ secrets.GITHUB_TOKEN }
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 85ec81b..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,27 +0,0 @@
----
-# OS Details
-os: linux
-language: python
-python: '3.8'
-
-cache:
-  pip: true
-
-# Install ansible and ansible-lint
-install:
-  - pip install ansible
-  - pip install ansible-lint
-
-# more advanced testing is currently handled with
-#  github actions. The gh-actions for our test are there:
-#  https://github.com/roles-ansible and are tagged
-#  with 'github-actions'  --> https://github.com/search?q=topic%3Agithub-actions+org%3Aroles-ansible&type=Repositories
-script:
-  - ansible-lint .
-  - echo -e "\n\n\n\n\nWe use github actions for more detailed tests.\n\nMore details about that in our github repo at:\nhttps://github.com/roles-ansible/ansible_role_base/actions\n\n\n\n\n\n"
-
-notifications:
-  email:
-    on_success: never
-    on_failure: always
-  webhooks: https://galaxy.ansible.com/api/v1/notifications/
diff --git a/.yamllint b/.yamllint
new file mode 100644
index 0000000..cb32cb1
--- /dev/null
+++ b/.yamllint
@@ -0,0 +1,8 @@
+---
+extends: default
+
+rules:
+  # 150 chars should be enough, but don't fail if a line is longer
+  line-length:
+    max: 150
+    level: warning
diff --git a/tasks/editor.yml b/tasks/editor.yml
index 7dea30f..c758724 100644
--- a/tasks/editor.yml
+++ b/tasks/editor.yml
@@ -9,7 +9,7 @@
     - ansible_distribution != 'CentOS'
     - ansible_distribution != 'RedHat'
     - ansible_distribution != 'Archlinux'
-  ignore_errors: yes
+  ignore_errors: true
 
 - name: vim is our editor
   become: true
@@ -21,4 +21,4 @@
     - ansible_distribution == 'CentOS'
     - ansible_distribution == 'RedHat'
     - ansible_distribution == 'Archlinux'
-  ignore_errors: yes
+  ignore_errors: true
diff --git a/tasks/keychain.yml b/tasks/keychain.yml
index 211d0b8..5794b49 100644
--- a/tasks/keychain.yml
+++ b/tasks/keychain.yml
@@ -1,18 +1,18 @@
 ---
 - name: install keychain to support ssh agent
-  become: yes
+  become: true
   package:
     name: keychain
     state: "{{ base__package_state }}"
   when:
-   - ansible_os_family != 'RedHat'
+    - ansible_os_family != 'RedHat'
 
 - name: install keychain on centos
-  become: yes
+  become: true
   yum:
     name:
       - "{{ _base__keychain_rpm }}"
       - libselinux-python
     state: "{{ base__package_state }}"
   when:
-   - ansible_os_family == 'RedHat' and ansible_distribution_version | float <= 7
+    - ansible_os_family == 'RedHat' and ansible_distribution_version | float <= 7
diff --git a/tasks/os_info.yml b/tasks/os_info.yml
index 4bfb408..04b2395 100644
--- a/tasks/os_info.yml
+++ b/tasks/os_info.yml
@@ -1,13 +1,13 @@
 ---
- - name: Print OS Infos
-   debug:
-      msg: |
-        ansible_os_family = '{{ ansible_os_family }}'
-        ansible_distribution = '{{ ansible_distribution }}'
-        ansible_distribution_version = '{{ ansible_distribution_version }}'
-        ansible_distribution_release = '{{ ansible_distribution_release }}'
-        ansible_machine = '{{ ansible_machine }}'
+- name: Print OS Infos
+  debug:
+    msg: |
+      ansible_os_family = '{{ ansible_os_family }}'
+      ansible_distribution = '{{ ansible_distribution }}'
+      ansible_distribution_version = '{{ ansible_distribution_version }}'
+      ansible_distribution_release = '{{ ansible_distribution_release }}'
+      ansible_machine = '{{ ansible_machine }}'
 
-        inventory_hostname = '{{ inventory_hostname }}'
-        ansible_hostname = '{{ ansible_hostname }}'
-        ansible_fqdn = '{{ ansible_fqdn }}'
+      inventory_hostname = '{{ inventory_hostname }}'
+      ansible_hostname = '{{ ansible_hostname }}'
+      ansible_fqdn = '{{ ansible_fqdn }}'
diff --git a/tasks/packages.yml b/tasks/packages.yml
index 0ef442a..f5c3457 100644
--- a/tasks/packages.yml
+++ b/tasks/packages.yml
@@ -2,7 +2,7 @@
 - name: update repo-cache for debian/ubuntu
   become: true
   apt:
-    update_cache: yes
+    update_cache: true
     cache_valid_time: 3600
   when:
     ansible_os_family == 'Debian'
@@ -10,7 +10,7 @@
 - name: update repo-cache for debian/ubuntu
   become: true
   dnf:
-    update_cache: yes
+    update_cache: true
   when:
     - ansible_os_family == 'RedHat' and ansible_distribution_version | float >= 8
 
diff --git a/tasks/sources.yml b/tasks/sources.yml
index 84e8fc9..53a4911 100644
--- a/tasks/sources.yml
+++ b/tasks/sources.yml
@@ -2,7 +2,7 @@
 - name: update repo-cache for Debian/Ubuntu
   become: true
   apt:
-    update_cache: yes
+    update_cache: true
     cache_valid_time: 3600
   when:
     ansible_os_family == 'Debian'
diff --git a/tasks/versioncheck.yml b/tasks/versioncheck.yml
index fa361f6..1ca07b5 100644
--- a/tasks/versioncheck.yml
+++ b/tasks/versioncheck.yml
@@ -13,7 +13,7 @@
     src: "/etc/.ansible-version/{{ playbook_version_path }}"
   register: playbook_version
   when: submodules_versioncheck|bool
-  ignore_errors: yes
+  ignore_errors: true
   failed_when: false
 
 - name: Print remote role version
diff --git a/vars/main.yml b/vars/main.yml
index 776abd9..8de141e 100644
--- a/vars/main.yml
+++ b/vars/main.yml
@@ -60,5 +60,5 @@ base__linux_packages:
   - youtube-dl
   - bzip2
 
-playbook_version_number: 9005 # should be over ninethousand
+playbook_version_number: 9005  # should be over ninethousand
 playbook_version_path: 'base-packages_roles-ansible_github.version'