CLEANUP: cleanup a bit the playbook and let it work with --check option

playbook/roles/package/tasks/main.yml

-  - name: Install packages using apt
+  - name: Install {{ package_name }} using apt
     apt: name={{ package_name }} state={{ package_state }} update_cache=yes cache_valid_time=3600
     when: ansible_os_family == "Debian" or ansible_os_family == "Linuxmint"
 
-  - name: Install re6stnet on CentOS
+  - name: Install {{ package_name }} using yum
     yum: name={{ package_name }} state={{ package_state }} update_cache=yes
     when: ansible_os_family == "RedHat"

playbook/roles/re6stnet/tasks/main.yml

 ---
-  - name: Check if configuration exists already
+  - name: Check if configuration already exists
     stat: path=/etc/re6stnet/re6stnet.conf
     register: re6stnet_conf
 
@@ -25,7 +25,7 @@
     shell: "re6st-conf --registry {{ re6st_registry_url }} --token {{ re6sttoken }} -r title {{ re6sttoken }} -d /etc/re6stnet"
     when: re6st_annon == False and re6stnet_conf.stat.exists == False and "{{ re6sttoken }}" != "notoken" and "{{ re6st_fingerprint }}" == "nofingerprint"
 
-  - name: Check if configuration exists already
+  - name: Recheck if configuration already exists (after running re6st-conf)
     stat: path=/etc/re6stnet/re6stnet.conf
     register: recheck_re6stnet_conf
 

playbook/roles/slapos/tasks/main.yml

-  - name: Install packages using apt
+  - name: Install slapos.node using apt
     apt: name=slapos-node state={{ package_state }} update_cache=yes cache_valid_time=3600
     when: ansible_os_family == "Debian"
 
-  - name: Install re6stnet on CentOS
+  - name: Install slapos.node using yum
     yum: name=slapos.node state={{ package_state }} update_cache=yes
     when: ansible_os_family == "RedHat"
 

playbook/roles/upgrader/tasks/main.yml

@@ -43,6 +43,7 @@
 
   - name: Update playbook md5
     shell: echo {{ archive.stat.md5 }} > /opt/upgrader/next-upgrade-signature
+    when: not ansible_check_mode
 
   - name: Stat Current Upgrade Signature
     file: path=/opt/upgrader/current-upgrade-signature state=touch mode="0666"
@@ -59,7 +60,7 @@
 
   - name: Do upgrade
     shell: ansible-playbook {{ upgrader_playbook }} -i hosts 2>>/opt/upgrader/latest_upgrade.log  >> /opt/upgrader/latest_upgrade.log
-    when: (upgrade_after > lookup('file', '/opt/upgrader/last-upgrade')|int ) and (lookup('file', '/opt/upgrader/next-upgrade-signature') != lookup('file', '/opt/upgrader/current-upgrade-signature'))
+    when: not ansible_check_mode and (upgrade_after > lookup('file', '/opt/upgrader/last-upgrade')|int ) and (lookup('file', '/opt/upgrader/next-upgrade-signature') != lookup('file', '/opt/upgrader/current-upgrade-signature'))
     args:
       chdir: /opt/upgrader/playbook-tmp/
 
@@ -72,9 +73,9 @@
 
   - name: Upgrade Current Upgrade Signature
     shell: cat /opt/upgrader/next-upgrade-signature > /opt/upgrader/current-upgrade-signature
-    when: (upgrade_after > lookup('file', '/opt/upgrader/last-upgrade')|int ) and (lookup('file', '/opt/upgrader/next-upgrade-signature') != lookup('file', '/opt/upgrader/current-upgrade-signature'))
+    when: not ansible_check_mode and (upgrade_after > lookup('file', '/opt/upgrader/last-upgrade')|int ) and (lookup('file', '/opt/upgrader/next-upgrade-signature') != lookup('file', '/opt/upgrader/current-upgrade-signature'))
 
   - shell: echo {{ ansible_date_time.epoch }} > /opt/upgrader/last-upgrade
-    when: (upgrade_after > lookup('file', '/opt/upgrader/last-upgrade')|int )
+    when: not ansible_check_mode and (upgrade_after > lookup('file', '/opt/upgrader/last-upgrade')|int )
 
   - include: remove-legacy.yml

playbook/roles/vifib-server/tasks/main.yml

@@ -48,6 +48,7 @@
   - name: Get systemd version
     shell: systemd --version | head -n 1 | cut -d " " -f 2
     register: systemd_version
+    check_mode: no
 
   - file: state=directory path="/etc/systemd/system/cron.service.d/"
     when: systemd_version.stdout | int > 228