Merge pull request #156 from Smana/coreos_support

CoreOS support (Calico, Flannel, Weave)

roles/kubernetes/preinstall/tasks/main.yml

@@ -14,6 +14,12 @@
       - defaults.yml
       paths:
       - ../vars
+      skip: true
+
+- name: Force binaries directory for CoreOS
+  set_fact:
+    bin_dir: "/opt/bin"
+  when: ansible_os_family == "CoreOS"
 
 - name: Create kubernetes config directory
   file:
@@ -85,8 +91,8 @@
     module: "{{ ansible_pkg_mgr }}"
     name: "{{ item }}"
     state: latest
-  with_items: "{{required_pkgs | union(common_required_pkgs)}}"
-  when: ansible_os_family in [ "Debian", "RedHat" ]
+  with_items: "{{required_pkgs | default([]) | union(common_required_pkgs|default([]))}}"
+  when: ansible_os_family != "CoreOS"
 
 # Todo : selinux configuration
 - name: Set selinux policy to permissive
@@ -95,6 +101,3 @@
   changed_when: False
 
 - include: etchosts.yml
-
-- include: python-bootstrap.yml
-  when: ansible_os_family not in [ "Debian", "RedHat" ]

roles/network_plugin/calico/tasks/main.yml

@@ -8,13 +8,14 @@
     mode: 0644
   notify:
     - restart docker
+  when: ansible_os_family != "CoreOS"
 
 - name: Calico | Write docker.service systemd file
   template:
     src: systemd-docker.service
     dest: /lib/systemd/system/docker.service
   notify: restart docker
-  when: ansible_service_mgr == "systemd"
+  when: ansible_service_mgr == "systemd" and ansible_os_family != "CoreOS"
 
 - meta: flush_handlers
 
@@ -34,12 +35,6 @@
 - name: Calico | install calicoctl
   file: path={{ bin_dir }}/calicoctl mode=0755 state=file
 
-- name: Calico | Create calicoctl symlink (needed by kubelet)
-  file:
-    src: /usr/local/bin/calicoctl
-    dest: /usr/bin/calicoctl
-    state: link
-
 - name: Calico | wait for etcd
   wait_for:
     port: 2379
@@ -54,12 +49,12 @@
   run_once: true
 
 - name: Calico | Configure calico network pool for cloud
-  command: "calicoctl pool add {{ kube_pods_subnet }} --ipip --nat-outgoing"
+  command: "{{ bin_dir }}/calicoctl pool add {{ kube_pods_subnet }} --ipip --nat-outgoing"
   run_once: true
   when: calico_conf.status == 404 and cloud_provider is defined and cloud_provider == True
 
 - name: Calico | Configure calico network pool
-  command: "calicoctl pool add {{ kube_pods_subnet }}"
+  command: "{{ bin_dir }}/calicoctl pool add {{ kube_pods_subnet }}"
   run_once: true
   when: calico_conf.status == 404 and (cloud_provider is not defined or cloud_provider != True)
 
@@ -112,13 +107,13 @@
   when: calico_copy.stdout_lines
 
 - name: Calico | Disable node mesh
-  shell: calicoctl bgp node-mesh off
+  shell: "{{ bin_dir }}/calicoctl bgp node-mesh off"
   environment:
      ETCD_AUTHORITY: "127.0.0.1:2379"
   when: peer_with_router|default(false) and inventory_hostname in groups['kube-node']
 
 - name: Calico | Configure peering with router(s)
-  shell: calicoctl node bgp peer add {{ item.router_id }} as {{ item.as }}
+  shell: "{{ bin_dir }}/calicoctl node bgp peer add {{ item.router_id }} as {{ item.as }}"
   environment:
      ETCD_AUTHORITY: "127.0.0.1:2379"
   with_items: peers

roles/network_plugin/flannel/tasks/main.yml

@@ -4,7 +4,6 @@
     src: network.json
     dest: /etc/flannel-network.json
     backup: yes
-
 - name: Flannel | Create flannel pod manifest
   template:
     src: flannel-pod.yml
@@ -15,6 +14,7 @@
   wait_for:
     path: /run/flannel/subnet.env
     delay: 5
+    timeout: 600
 
 - name: Flannel | Get flannel_subnet from subnet.env
   shell: cat /run/flannel/subnet.env | awk -F'=' '$1 == "FLANNEL_SUBNET" {print $2}'
@@ -42,11 +42,18 @@
   notify:
     - restart docker
 
+- name: Flannel | Create docker config symlink for CoreOS
+  file:
+    src: "/etc/default/docker"
+    dest: "/run/flannel_docker_opts.env"
+    state: link
+  when: ansible_os_family == "CoreOS"
+
 - name: Flannel | Write docker.service systemd file
   template:
     src: systemd-docker.service
     dest: /lib/systemd/system/docker.service
   notify: restart docker
-  when: ansible_service_mgr == "systemd"
+  when: ansible_service_mgr == "systemd" and ansible_os_family != "CoreOS"
 
 - meta: flush_handlers

roles/network_plugin/flannel/templates/docker

 # Deployed by Ansible
-{% if ansible_service_mgr in ["sysvinit","upstart"] and kube_network_plugin == "flannel" and ansible_os_family == "Debian" %}
+{% if (ansible_service_mgr in ["sysvinit","upstart"] and kube_network_plugin == "flannel" and ansible_os_family == "Debian") or
+   (kube_network_plugin == "flannel" and ansible_os_family == "CoreOS") %}
 DOCKER_OPTS="--bip={{ flannel_subnet }} --mtu={{ flannel_mtu }}"
 {% elif kube_network_plugin == "flannel" %}
 OPTIONS="--bip={{ flannel_subnet }} --mtu={{ flannel_mtu }}"

roles/network_plugin/weave/tasks/main.yml

@@ -14,7 +14,7 @@
     src: systemd-docker.service
     dest: /lib/systemd/system/docker.service
   notify: restart docker
-  when: ansible_service_mgr == "systemd"
+  when: ansible_service_mgr == "systemd" and ansible_os_family != "CoreOS"
 
 - meta: flush_handlers