cancel running tests if new commit to branch is made

Signed-off-by: Sebastian Gumprich <sebastian.gumprich@t-systems.com>

.github/workflows/mysql_hardening.yml

@@ -15,6 +15,14 @@ on:  # yamllint disable-line rule:truthy
       - 'roles/mysql_hardening/**'
       - 'molecule/mysql_hardening/**'
       - '.github/workflows/mysql_hardening.yml'
+
+concurrency:
+  group: >-
+    ${{ github.workflow }}-${{
+      github.event.pull_request.number || github.sha
+    }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-18.04

.github/workflows/nginx_hardening.yml

@@ -14,6 +14,14 @@ on:  # yamllint disable-line rule:truthy
       - 'roles/nginx_hardening/**'
       - 'molecule/nginx_hardening/**'
       - '.github/workflows/nginx_hardening.yml'
+
+concurrency:
+  group: >-
+    ${{ github.workflow }}-${{
+      github.event.pull_request.number || github.sha
+    }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-18.04

.github/workflows/os_hardening.yml

@@ -14,6 +14,14 @@ on:  # yamllint disable-line rule:truthy
       - 'roles/os_hardening/**'
       - 'molecule/os_hardening/**'
       - '.github/workflows/os_hardening.yml'
+
+concurrency:
+  group: >-
+    ${{ github.workflow }}-${{
+      github.event.pull_request.number || github.sha
+    }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-18.04

.github/workflows/os_hardening_vm.yml

@@ -14,6 +14,14 @@ on:  # yamllint disable-line rule:truthy
       - 'roles/os_hardening/**'
       - 'molecule/os_hardening_vm/**'
       - '.github/workflows/os_hardening_vm.yml'
+
+concurrency:
+  group: >-
+    ${{ github.workflow }}-${{
+      github.event.pull_request.number || github.sha
+    }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: self-hosted

.github/workflows/ssh_hardening.yml

@@ -14,6 +14,14 @@ on:  # yamllint disable-line rule:truthy
       - 'roles/ssh_hardening/**'
       - 'molecule/ssh_hardening/**'
       - '.github/workflows/ssh_hardening.yml'
+
+concurrency:
+  group: >-
+    ${{ github.workflow }}-${{
+      github.event.pull_request.number || github.sha
+    }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-18.04

.github/workflows/ssh_hardening_custom_tests.yml

@@ -14,6 +14,14 @@ on:  # yamllint disable-line rule:truthy
       - 'roles/ssh_hardening/**'
       - 'molecule/ssh_hardening_custom_tests/**'
       - '.github/workflows/ssh_hardening_custom_tests.yml'
+
+concurrency:
+  group: >-
+    ${{ github.workflow }}-${{
+      github.event.pull_request.number || github.sha
+    }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-18.04