diff --git a/.gitlab-ci/terraform.yml b/.gitlab-ci/terraform.yml
index dfe15e905..358da3e07 100644
--- a/.gitlab-ci/terraform.yml
+++ b/.gitlab-ci/terraform.yml
@@ -92,70 +92,3 @@ tf-validate-aws:
 #     TF_VAR_facility: ams1
 #     TF_VAR_public_key_path: ""
 #     TF_VAR_operating_system: ubuntu_18_04
-
-.ovh_variables: &ovh_variables
-  OS_AUTH_URL: https://auth.cloud.ovh.net/v3
-  OS_PROJECT_ID: 8d3cd5d737d74227ace462dee0b903fe
-  OS_PROJECT_NAME: "9361447987648822"
-  OS_USER_DOMAIN_NAME: Default
-  OS_PROJECT_DOMAIN_ID: default
-  OS_USERNAME: 8XuhBMfkKVrk
-  OS_REGION_NAME: UK1
-  OS_INTERFACE: public
-  OS_IDENTITY_API_VERSION: "3"
-
-tf-ovh_ubuntu18-calico:
-  extends: .terraform_apply
-  when: on_success
-  variables:
-    <<: *ovh_variables
-    TF_VERSION: 0.12.12
-    PROVIDER: openstack
-    CLUSTER: $CI_COMMIT_REF_NAME
-    ANSIBLE_TIMEOUT: "60"
-    SSH_USER: ubuntu
-    TF_VAR_number_of_k8s_masters: "0"
-    TF_VAR_number_of_k8s_masters_no_floating_ip: "1"
-    TF_VAR_number_of_k8s_masters_no_floating_ip_no_etcd: "0"
-    TF_VAR_number_of_etcd: "0"
-    TF_VAR_number_of_k8s_nodes: "0"
-    TF_VAR_number_of_k8s_nodes_no_floating_ip: "1"
-    TF_VAR_number_of_gfs_nodes_no_floating_ip: "0"
-    TF_VAR_number_of_bastions: "0"
-    TF_VAR_number_of_k8s_masters_no_etcd: "0"
-    TF_VAR_use_neutron: "0"
-    TF_VAR_floatingip_pool: "Ext-Net"
-    TF_VAR_external_net: "6011fbc9-4cbf-46a4-8452-6890a340b60b"
-    TF_VAR_network_name: "Ext-Net"
-    TF_VAR_flavor_k8s_master: "defa64c3-bd46-43b4-858a-d93bbae0a229"    # s1-8
-    TF_VAR_flavor_k8s_node: "defa64c3-bd46-43b4-858a-d93bbae0a229"      # s1-8
-    TF_VAR_image: "Ubuntu 18.04"
-    TF_VAR_k8s_allowed_remote_ips: '["0.0.0.0/0"]'
-
-tf-ovh_coreos-calico:
-  extends: .terraform_apply
-  when: on_success
-  variables:
-    <<: *ovh_variables
-    TF_VERSION: 0.12.12
-    PROVIDER: openstack
-    CLUSTER: $CI_COMMIT_REF_NAME
-    ANSIBLE_TIMEOUT: "60"
-    SSH_USER: core
-    TF_VAR_number_of_k8s_masters: "0"
-    TF_VAR_number_of_k8s_masters_no_floating_ip: "1"
-    TF_VAR_number_of_k8s_masters_no_floating_ip_no_etcd: "0"
-    TF_VAR_number_of_etcd: "0"
-    TF_VAR_number_of_k8s_nodes: "0"
-    TF_VAR_number_of_k8s_nodes_no_floating_ip: "1"
-    TF_VAR_number_of_gfs_nodes_no_floating_ip: "0"
-    TF_VAR_number_of_bastions: "0"
-    TF_VAR_number_of_k8s_masters_no_etcd: "0"
-    TF_VAR_use_neutron: "0"
-    TF_VAR_floatingip_pool: "Ext-Net"
-    TF_VAR_external_net: "6011fbc9-4cbf-46a4-8452-6890a340b60b"
-    TF_VAR_network_name: "Ext-Net"
-    TF_VAR_flavor_k8s_master: "4d4fd037-9493-4f2b-9afe-b542b5248eac"    # b2-7
-    TF_VAR_flavor_k8s_node: "4d4fd037-9493-4f2b-9afe-b542b5248eac"      # b2-7
-    TF_VAR_image: "CoreOS Stable"
-    TF_VAR_k8s_allowed_remote_ips: '["0.0.0.0/0"]'
diff --git a/docs/integration.md b/docs/integration.md
index 09908bf01..4d01bc49b 100644
--- a/docs/integration.md
+++ b/docs/integration.md
@@ -7,7 +7,7 @@
 
 2. Add **forked repo** as submodule to desired folder in your existent ansible repo(for example 3d/kubespray):
   ```git submodule add https://github.com/YOUR_GITHUB/kubespray.git kubespray```
-  Git will create _.gitmodules_ file in your existent ansible repo:
+  Git will create `.gitmodules` file in your existent ansible repo:
 
    ```ini
    [submodule "3d/kubespray"]
diff --git a/roles/kubernetes/master/tasks/kubeadm-upgrade.yml b/roles/kubernetes/master/tasks/kubeadm-upgrade.yml
index d8a80cd02..d1473fb5e 100644
--- a/roles/kubernetes/master/tasks/kubeadm-upgrade.yml
+++ b/roles/kubernetes/master/tasks/kubeadm-upgrade.yml
@@ -1,4 +1,15 @@
 ---
+- name: "kubeadm | Wait for master kube-apiserver"
+  uri:
+    url: "https://{{ kube_apiserver_access_address }}:{{ kube_apiserver_port }}/version"
+    status_code: 200
+    validate_certs: false
+  register: kube_api_server_available
+  until: kube_api_server_available.status == 200
+  retries: 180
+  delay: 1
+  when: inventory_hostname == groups['kube-master']
+
 - name: kubeadm | Upgrade first master
   command: >-
     timeout -k 600s 600s