diff --git a/roles/docker/handlers/main.yml b/roles/docker/handlers/main.yml
index 360cc1bf22f5cabb0b9576809d877b5259097bef..e92bf3a51d4d6eae86d835b45bf7f90b809ae283 100644
--- a/roles/docker/handlers/main.yml
+++ b/roles/docker/handlers/main.yml
@@ -15,7 +15,7 @@
   service:
     name: docker.socket
     state: restarted
-  when: ansible_os_family == 'Container Linux by CoreOS'
+  when: ansible_os_family in ['CoreOS', 'Container Linux by CoreOS']
 
 - name: Docker | reload docker
   service:
diff --git a/roles/docker/tasks/main.yml b/roles/docker/tasks/main.yml
index 4d7fe573ec3f59e0402657f57d243243ac59d204..4494ac6116a415a8e421048f70d043be6ac91ef3 100644
--- a/roles/docker/tasks/main.yml
+++ b/roles/docker/tasks/main.yml
@@ -20,7 +20,7 @@
           docker requires a minimum kernel version of
           {{ docker_kernel_min_version }} on
           {{ ansible_distribution }}-{{ ansible_distribution_version }}
-  when: (ansible_os_family != "Container Linux by CoreOS") and (ansible_kernel|version_compare(docker_kernel_min_version, "<"))
+  when: (not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]) and (ansible_kernel|version_compare(docker_kernel_min_version, "<"))
   tags: facts
 
 - name: ensure docker repository public key is installed
@@ -34,7 +34,7 @@
   retries: 4
   delay: "{{ retry_stagger | random + 3 }}"
   with_items: "{{ docker_repo_key_info.repo_keys }}"
-  when: ansible_os_family != "Container Linux by CoreOS"
+  when: not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
 
 - name: ensure docker repository is enabled
   action: "{{ docker_repo_info.pkg_repo }}"
@@ -42,7 +42,7 @@
     repo: "{{item}}"
     state: present
   with_items: "{{ docker_repo_info.repos }}"
-  when: (ansible_os_family != "Container Linux by CoreOS") and (docker_repo_info.repos|length > 0)
+  when: (not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]) and (docker_repo_info.repos|length > 0)
 
 - name: Configure docker repository on RedHat/CentOS
   copy:
@@ -61,7 +61,7 @@
   retries: 4
   delay: "{{ retry_stagger | random + 3 }}"
   with_items: "{{ docker_package_info.pkgs }}"
-  when: (ansible_os_family != "Container Linux by CoreOS") and (docker_package_info.pkgs|length > 0)
+  when: (not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]) and (docker_package_info.pkgs|length > 0)
 
 - name: Set docker systemd config
   include: systemd.yml
diff --git a/roles/docker/tasks/systemd.yml b/roles/docker/tasks/systemd.yml
index 5eb6e63e89602027f98b6ce318bfff0de8113211..090641f854cb427c37a85bff09e8cfb3e5b7aeb3 100644
--- a/roles/docker/tasks/systemd.yml
+++ b/roles/docker/tasks/systemd.yml
@@ -13,7 +13,7 @@
     src: docker.service.j2
     dest: /etc/systemd/system/docker.service
   register: docker_service_file
-  when: ansible_os_family != "Container Linux by CoreOS"
+  when: not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
 
 - name: Write docker options systemd drop-in
   template:
diff --git a/roles/download/tasks/main.yml b/roles/download/tasks/main.yml
index 158d262f31a8c0d282f17bf0ca49b5a8b3e5a876..2fb9434bf14590e691cc820a3b210dce9fc447fb 100644
--- a/roles/download/tasks/main.yml
+++ b/roles/download/tasks/main.yml
@@ -119,7 +119,7 @@
   delegate_to: "{{ download_delegate }}"
   register: saved
   run_once: true
-  when: (ansible_os_family != "Container Linux by CoreOS" or download_delegate == "localhost") and download_run_once|bool and download.enabled|bool and download.container|bool and (container_changed|bool or not img.stat.exists)
+  when: (not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"] or download_delegate == "localhost") and download_run_once|bool and download.enabled|bool and download.container|bool and (container_changed|bool or not img.stat.exists)
 
 - name: Download | copy container images to ansible host
   synchronize:
@@ -128,7 +128,7 @@
     mode: pull
   delegate_to: localhost
   become: false
-  when: ansible_os_family != "Container Linux by CoreOS" and inventory_hostname == groups['kube-master'][0] and download_delegate != "localhost" and download_run_once|bool and download.enabled|bool and download.container|bool and saved.changed
+  when: not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"] and inventory_hostname == groups['kube-master'][0] and download_delegate != "localhost" and download_run_once|bool and download.enabled|bool and download.container|bool and saved.changed
 
 - name: Download | upload container images to nodes
   synchronize:
@@ -141,10 +141,10 @@
   until: get_task|success
   retries: 4
   delay: "{{ retry_stagger | random + 3 }}"
-  when: (ansible_os_family != "Container Linux by CoreOS" and inventory_hostname != groups['kube-master'][0] or download_delegate == "localhost") and download_run_once|bool and download.enabled|bool and download.container|bool
+  when: (not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"] and inventory_hostname != groups['kube-master'][0] or download_delegate == "localhost") and download_run_once|bool and download.enabled|bool and download.container|bool
   tags: [upload, upgrade]
 
 - name: Download | load container images
   shell: "{{ docker_bin_dir }}/docker load < {{ fname }}"
-  when: (ansible_os_family != "Container Linux by CoreOS" and inventory_hostname != groups['kube-master'][0] or download_delegate == "localhost") and download_run_once|bool and download.enabled|bool and download.container|bool
+  when: (not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"] and inventory_hostname != groups['kube-master'][0] or download_delegate == "localhost") and download_run_once|bool and download.enabled|bool and download.container|bool
   tags: [upload, upgrade]
diff --git a/roles/etcd/meta/main.yml b/roles/etcd/meta/main.yml
index ad580afdd87799807a5a9a6e1fc9393c4eff9847..addd81053d3da495880454c5a177bee33209923d 100644
--- a/roles/etcd/meta/main.yml
+++ b/roles/etcd/meta/main.yml
@@ -2,7 +2,7 @@
 dependencies:
   - role: adduser
     user: "{{ addusers.etcd }}"
-    when: ansible_os_family != 'Container Linux by CoreOS'
+    when: not ansible_os_family in ['CoreOS', 'Container Linux by CoreOS']
   - role: download
     file: "{{ downloads.etcd }}"
     tags: download
diff --git a/roles/etcd/tasks/gen_certs.yml b/roles/etcd/tasks/gen_certs.yml
index 8807fb626cec95f6b9c381f852db8fc5daf6f062..be127e97206f5ab157dbdf7a0e040d2b520cdfb1 100644
--- a/roles/etcd/tasks/gen_certs.yml
+++ b/roles/etcd/tasks/gen_certs.yml
@@ -129,7 +129,7 @@
       /usr/local/share/ca-certificates/etcd-ca.crt
       {%- elif ansible_os_family == "RedHat" -%}
       /etc/pki/ca-trust/source/anchors/etcd-ca.crt
-      {%- elif ansible_os_family == "Container Linux by CoreOS" -%}
+      {%- elif ansible_os_family in ["CoreOS", "Container Linux by CoreOS"] -%}
       /etc/ssl/certs/etcd-ca.pem
       {%- endif %}
   tags: facts
diff --git a/roles/kubernetes/preinstall/handlers/main.yml b/roles/kubernetes/preinstall/handlers/main.yml
index 19a9770f3a3d684338b4ed63340066436a99b4f0..f9586623f8044be99363a038103ec41f4e672c7f 100644
--- a/roles/kubernetes/preinstall/handlers/main.yml
+++ b/roles/kubernetes/preinstall/handlers/main.yml
@@ -3,7 +3,7 @@
   notify:
     - Preinstall | reload network
     - Preinstall | reload kubelet
-  when: ansible_os_family != "Container Linux by CoreOS"
+  when: not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
 
   # FIXME(bogdando) https://github.com/projectcalico/felix/issues/1185
 - name: Preinstall | reload network
@@ -15,18 +15,18 @@
       networking
       {%- endif %}
     state: restarted
-  when: ansible_os_family != "Container Linux by CoreOS" and kube_network_plugin not in ['canal', 'calico']
+  when: not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"] and kube_network_plugin not in ['canal', 'calico']
 
 - name: Preinstall | update resolvconf for Container Linux by CoreOS
   command: /bin/true
   notify:
     - Preinstall | apply resolvconf cloud-init
     - Preinstall | reload kubelet
-  when: ansible_os_family == "Container Linux by CoreOS"
+  when: ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
 
 - name: Preinstall | apply resolvconf cloud-init
   command: /usr/bin/coreos-cloudinit --from-file {{ resolveconf_cloud_init_conf }}
-  when: ansible_os_family == "Container Linux by CoreOS"
+  when: ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
 
 - name: Preinstall | reload kubelet
   service:
diff --git a/roles/kubernetes/preinstall/tasks/main.yml b/roles/kubernetes/preinstall/tasks/main.yml
index cab3f7b0cdd172f487a927dae61b02a03f2520da..0423ab93fec60ecdf9fb6a81ee0b3b5300720f35 100644
--- a/roles/kubernetes/preinstall/tasks/main.yml
+++ b/roles/kubernetes/preinstall/tasks/main.yml
@@ -5,7 +5,7 @@
 - name: Force binaries directory for Container Linux by CoreOS
   set_fact:
     bin_dir: "/opt/bin"
-  when: ansible_os_family == "Container Linux by CoreOS"
+  when: ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
   tags: facts
 
 - name: check bin dir exists
@@ -131,7 +131,7 @@
   retries: 4
   delay: "{{ retry_stagger | random + 3 }}"
   with_items: "{{required_pkgs | default([]) | union(common_required_pkgs|default([]))}}"
-  when: ansible_os_family != "Container Linux by CoreOS"
+  when: not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
   tags: bootstrap-os
 
 - name: Disable IPv6 DNS lookup
@@ -140,7 +140,7 @@
     line: "precedence ::ffff:0:0/96  100"
     state: present
     backup: yes
-  when: disable_ipv6_dns and ansible_os_family != "Container Linux by CoreOS"
+  when: disable_ipv6_dns and not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
   tags: bootstrap-os
 
 # Todo : selinux configuration
diff --git a/roles/kubernetes/preinstall/tasks/resolvconf.yml b/roles/kubernetes/preinstall/tasks/resolvconf.yml
index a58d3eb99158a9cae2a7ad9c6683000a559be485..c75f1dd86712564876b85f324a672c81e92baa7c 100644
--- a/roles/kubernetes/preinstall/tasks/resolvconf.yml
+++ b/roles/kubernetes/preinstall/tasks/resolvconf.yml
@@ -1,7 +1,7 @@
 ---
 - name: create temporary resolveconf cloud init file
   command: cp -f /etc/resolv.conf "{{ resolvconffile }}"
-  when: ansible_os_family == "Container Linux by CoreOS"
+  when: ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
 
 - name: Remove search/domain/nameserver options
   lineinfile:
@@ -48,7 +48,7 @@
 - name: get temporary resolveconf cloud init file content
   command: cat {{ resolvconffile }}
   register: cloud_config
-  when: ansible_os_family == "Container Linux by CoreOS"
+  when: ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
 
 - name: persist resolvconf cloud init file
   template:
@@ -57,8 +57,8 @@
     owner: root
     mode: 0644
   notify: Preinstall | update resolvconf for Container Linux by CoreOS
-  when: ansible_os_family == "Container Linux by CoreOS"
+  when: ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
 
 - include: dhclient-hooks.yml
-  when: ansible_os_family != "Container Linux by CoreOS"
+  when: not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
   tags: [bootstrap-os, resolvconf]
diff --git a/roles/kubernetes/preinstall/tasks/set_resolv_facts.yml b/roles/kubernetes/preinstall/tasks/set_resolv_facts.yml
index 165ff76684f2cc1e2ac699697396f2fe08773174..52f17600ad00033995bc0ab2b94b080d1bd80f19 100644
--- a/roles/kubernetes/preinstall/tasks/set_resolv_facts.yml
+++ b/roles/kubernetes/preinstall/tasks/set_resolv_facts.yml
@@ -35,11 +35,11 @@
       {%- if resolvconf|bool -%}/etc/resolvconf/resolv.conf.d/base{%- endif -%}
     head: >-
       {%- if resolvconf|bool -%}/etc/resolvconf/resolv.conf.d/head{%- endif -%}
-  when: ansible_os_family != "Container Linux by CoreOS"
+  when: not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
 
 - name: target temporary resolvconf cloud init file (Container Linux by CoreOS)
   set_fact: resolvconffile=/tmp/resolveconf_cloud_init_conf
-  when: ansible_os_family == "Container Linux by CoreOS"
+  when: ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
 
 - name: target dhclient conf/hook files for Red Hat family
   set_fact:
diff --git a/roles/kubernetes/secrets/tasks/gen_certs.yml b/roles/kubernetes/secrets/tasks/gen_certs.yml
index da2ad6bcdd25f2c66a4804cd8eec0ecdd63e1839..22116fd3d261b8f037caa078c957a96c8b431ba5 100644
--- a/roles/kubernetes/secrets/tasks/gen_certs.yml
+++ b/roles/kubernetes/secrets/tasks/gen_certs.yml
@@ -74,7 +74,7 @@
       /usr/local/share/ca-certificates/kube-ca.crt
       {%- elif ansible_os_family == "RedHat" -%}
       /etc/pki/ca-trust/source/anchors/kube-ca.crt
-      {%- elif ansible_os_family == "Container Linux by CoreOS" -%}
+      {%- elif ansible_os_family in ["CoreOS", "Container Linux by CoreOS"] -%}
       /etc/ssl/certs/kube-ca.pem
       {%- endif %}
   tags: facts
diff --git a/roles/network_plugin/calico/rr/meta/main.yml b/roles/network_plugin/calico/rr/meta/main.yml
index 3721d8672714cb7a1ad434bb3e6fd233f9c95083..55104953ec9d507bfe4d3670e2133795177131d6 100644
--- a/roles/network_plugin/calico/rr/meta/main.yml
+++ b/roles/network_plugin/calico/rr/meta/main.yml
@@ -1,6 +1,6 @@
 dependencies:
   - role: etcd
   - role: docker
-    when: ansible_os_family != "Container Linux by CoreOS"
+    when: not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
   - role: download
     file: "{{ downloads.calico_rr }}"
diff --git a/roles/network_plugin/flannel/handlers/main.yml b/roles/network_plugin/flannel/handlers/main.yml
index 8f265276c6dfba7d483e4693965c6726d4b39c03..82810ac98e76d9982f483eddf2375a2542e9f01c 100644
--- a/roles/network_plugin/flannel/handlers/main.yml
+++ b/roles/network_plugin/flannel/handlers/main.yml
@@ -20,7 +20,7 @@
   service:
     name: docker.socket
     state: restarted
-  when: ansible_os_family == 'Container Linux by CoreOS'
+  when: ansible_os_family in ['CoreOS', 'Container Linux by CoreOS']
 
 - name: Flannel | reload docker
   service:
diff --git a/roles/network_plugin/flannel/templates/flannel-options.conf.j2 b/roles/network_plugin/flannel/templates/flannel-options.conf.j2
index df3862e38df227cb06038812991f882eaced6461..9ee22b4bc77de911c286e0e0900b350edac1616e 100644
--- a/roles/network_plugin/flannel/templates/flannel-options.conf.j2
+++ b/roles/network_plugin/flannel/templates/flannel-options.conf.j2
@@ -1,5 +1,5 @@
 [Service]
-{% if ansible_os_family == "Container Linux by CoreOS" %}
+{% if ansible_os_family in ["CoreOS", "Container Linux by CoreOS"] %}
 Environment="DOCKER_OPT_BIP=--bip={{ flannel_subnet }} --mtu={{ flannel_mtu }}"
 {% else %}
 Environment="DOCKER_NETWORK_OPTIONS=--bip={{ flannel_subnet }} --mtu={{ flannel_mtu }}"
diff --git a/tests/testcases/020_check-create-pod.yml b/tests/testcases/020_check-create-pod.yml
index d874374ea24f4c899673984f7c97721d01def28c..d2e3e434115109dcbd2a960d42b18686b84a4590 100644
--- a/tests/testcases/020_check-create-pod.yml
+++ b/tests/testcases/020_check-create-pod.yml
@@ -10,11 +10,11 @@
   - name: Force binaries directory for Container Linux by CoreOS
     set_fact:
       bin_dir: "/opt/bin"
-    when: ansible_os_family == "Container Linux by CoreOS"
+    when: ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
 
   - set_fact:
       bin_dir: "/usr/local/bin"
-    when: ansible_os_family != "Container Linux by CoreOS"
+    when: not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
 
   - name: Run a replica controller composed of 2 pods
     shell: "{{bin_dir}}/kubectl run test --image={{test_image_repo}}:{{test_image_tag}} --replicas=2 --command -- tail -f /dev/null"
diff --git a/tests/testcases/030_check-network.yml b/tests/testcases/030_check-network.yml
index 30b9c05437fb939d14c7467e856d4e3dc0f7e413..b92efa975741e8b276a3a28fb6192b14f4ff8025 100644
--- a/tests/testcases/030_check-network.yml
+++ b/tests/testcases/030_check-network.yml
@@ -6,11 +6,11 @@
   - name: Force binaries directory for Container Linux by CoreOS
     set_fact:
       bin_dir: "/opt/bin"
-    when: ansible_os_family == "Container Linux by CoreOS"
+    when: ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
 
   - set_fact:
       bin_dir: "/usr/local/bin"
-    when: ansible_os_family != "Container Linux by CoreOS"
+    when: not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
 
   - name: Get pod names
     shell: "{{bin_dir}}/kubectl get pods -o json"
diff --git a/tests/testcases/040_check-network-adv.yml b/tests/testcases/040_check-network-adv.yml
index f32facb45eb2096f5635442d1aa576617ea58a56..667707046af5161a0393b0199d270100f16e806e 100644
--- a/tests/testcases/040_check-network-adv.yml
+++ b/tests/testcases/040_check-network-adv.yml
@@ -15,11 +15,11 @@
     - name: Force binaries directory for Container Linux by CoreOS
       set_fact:
         bin_dir: "/opt/bin"
-      when: ansible_os_family == "Container Linux by CoreOS"
+      when: ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
 
     - set_fact:
         bin_dir: "/usr/local/bin"
-      when: ansible_os_family != "Container Linux by CoreOS"
+      when: not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
 
     - name: Wait for netchecker server
       shell: "{{ bin_dir }}/kubectl get pods --namespace {{netcheck_namespace}} | grep ^netchecker-server"