[deploy-env] Make vxlan setup fully optional

Adjust calico configuration for no-VXLAN setup (overlay_network_setup: false)

Change-Id: I512847ff91215610af9177598b31526cb38a5ba7
Signed-off-by: Arina Stebenkova <astebenkova@mirantis.com>

roles/deploy-env/tasks/calico.yaml

@@ -2,34 +2,37 @@
 # We download Calico manifest on all nodes because we then want to download
 # Calico images BEFORE deploying it, so that `kubectl wait` timeout
 # for `k8s-app=kube-dns` isn't reached by slow download speeds
-- name: Download Calico manifest
+- name: Prepare Calico configuration
+  become: false
+  block:
+    - name: Download Calico manifest
+      get_url:
+        url: "{{ calico_manifest_url }}"
+        dest: /tmp/calico.yaml
+      register: calico_config
+
+    - name: Change registry URL
+      shell: sed -i -e 's#docker.io/calico/#quay.io/calico/#g' {{ calico_config.dest }}
+
+    - name: Amend settings for VXLAN setup
+      when: overlay_network_setup
+      shell: sed -i '/CALICO_IPV4POOL_IPIP/{n;s/Always/Never/}' {{ calico_config.dest }}
+
+- name: Download Calico images on K8s nodes beforehand
   when: inventory_hostname in (groups['k8s_cluster'] | default([]))
-  shell: |
-    curl -LSs {{ calico_manifest_url }} -o /tmp/calico.yaml
-    sed -i -e 's#docker.io/calico/#quay.io/calico/#g' /tmp/calico.yaml
-    sed -i '/CALICO_IPV4POOL_IPIP/{n;s/Always/Never/}' /tmp/calico.yaml
-    export CONTAINER_RUNTIME_ENDPOINT=unix:///run/containerd/containerd.sock
-    export IMAGE_SERVICE_ENDPOINT=unix:///run/containerd/containerd.sock
-    awk '/image:/ { print $2 }' /tmp/calico.yaml | xargs -I{} crictl pull {}
+  shell: awk '/image:/ { print $2 }' {{ calico_config.dest }} | xargs -I{} crictl pull {}
+  environment:
+    CONTAINER_RUNTIME_ENDPOINT: "unix:///run/containerd/containerd.sock"
+    IMAGE_SERVICE_ENDPOINT: "unix:///run/containerd/containerd.sock"
   args:
     executable: /bin/bash
 
-- name: Deploy Calico
+- name: Deploy Calico from Control Plane node
   become: false
   when: inventory_hostname in (groups['primary'] | default([]))
   block:
-    - name: Download Calico manifest
-      shell: |
-        if [[ ! -f /tmp/calico.yaml ]]; then
-          curl -LSs {{ calico_manifest_url }} -o /tmp/calico.yaml
-          sed -i -e 's#docker.io/calico/#quay.io/calico/#g' /tmp/calico.yaml
-          sed -i '/CALICO_IPV4POOL_IPIP/{n;s/Always/Never/}' /tmp/calico.yaml
-        fi
-      args:
-        executable: /bin/bash
-
     - name: Deploy Calico
-      command: kubectl apply -f /tmp/calico.yaml
+      command: kubectl apply -f {{ calico_config.dest }}
 
     - name: Sleep before trying to check Calico pods
       pause:
@@ -45,9 +48,10 @@
       copy:
         src: files/calico_patch.yaml
         dest: /tmp/calico_patch.yaml
+      register: calico_patch_config
 
     - name: Patch Calico
-      command: kubectl -n kube-system patch daemonset calico-node --patch-file /tmp/calico_patch.yaml
+      command: kubectl -n kube-system patch daemonset calico-node --patch-file {{ calico_patch_config.dest }}
 
     - name: Delete Calico pods (for hard restart)
       command: kubectl -n kube-system delete pods -l k8s-app=calico-node