Download containers and save all

Move version/repo vars to download role.
Add container to download params, which overrides url/source_url,
if enabled.
Fix networking plugins download depending on kube_network_plugin.

Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>

roles/network_plugin/calico/defaults/main.yml

@@ -7,9 +7,3 @@ ipip: false
 
 # cloud_provider can only be set to 'gce' or 'aws'
 # cloud_provider:
-
-calicoctl_image_repo: calico/ctl
-calicoctl_image_tag: "{{ calico_version }}"
-
-calico_node_image_repo: calico/node
-calico_node_image_tag: "{{ calico_version }}"

roles/network_plugin/calico/meta/main.yml

@@ -4,3 +4,9 @@ dependencies:
     file: "{{ downloads.calico_cni_plugin }}"
   - role: download
     file: "{{ downloads.calico_cni_plugin_ipam }}"
+  - role: download
+    file: "{{ downloads.calico_node }}"
+  - role: download
+    file: "{{ downloads.calicoctl }}"
+  - role: download
+    file: "{{ downloads.hyperkube }}"

roles/network_plugin/flannel/defaults/main.yml

@@ -10,10 +10,3 @@ flannel_public_ip: "{{ access_ip|default(ip|default(ansible_default_ipv4.address
 # You can choose what type of flannel backend to use
 # please refer to flannel's docs : https://github.com/coreos/flannel/blob/master/README.md
 flannel_backend_type: "vxlan"
-
-
-flannel_server_helper_image_repo: "gcr.io/google_containers/flannel-server-helper"
-flannel_server_helper_image_tag: "0.1"
-
-flannel_image_repo: "quay.io/coreos/flannel"
-flannel_image_tag: "0.5.5"

roles/network_plugin/flannel/meta/main.yml

@@ -0,0 +1,6 @@
+---
+dependencies:
+  - role: download
+    file: "{{ downloads.flannel_server_helper }}"
+  - role: download
+    file: "{{ downloads.flannel }}"