Merge pull request #698 from lebauce/flannel

Add support for flannel

5 files changed, 96 insertions, 0 deletions

diff --git a/roles/flannel_register/README.md b/roles/flannel_register/README.md
new file mode 100644
index 000000000..ba7541ab1
--- /dev/null
+++ b/roles/flannel_register/README.md
@@ -0,0 +1,47 @@
+Role Name
+=========
+
+Register flannel configuration into etcd
+
+Requirements
+------------
+
+This role assumes it's being deployed on a RHEL/Fedora based host with package
+named 'flannel' available via yum, in version superior to 0.3.
+
+Role Variables
+--------------
+
+| Name                | Default value                                      | Description                                     |
+|---------------------|----------------------------------------------------|-------------------------------------------------|
+| flannel_network     | {{ openshift.master.portal_net }} or 172.16.1.1/16 | interface to use for inter-host communication   |
+| flannel_min_network | {{ min_network }} or 172.16.5.0                    | beginning of IP range for the subnet allocation |
+| flannel_subnet_len  | /openshift.com/network                             | size of the subnet allocated to each host       |
+| flannel_etcd_key    | /openshift.com/network                             | etcd prefix                                     |
+| etcd_hosts          | etcd_urls                                          | a list of etcd endpoints                        |
+| etcd_conf_dir       | {{ openshift.common.config_base }}/master          | SSL certificates directory                      |
+| etcd_peer_ca_file   | {{ etcd_conf_dir }}/ca.crt                         | SSL CA to use for etcd                          |
+| etcd_peer_cert_file | {{ etcd_conf_dir }}/master.etcd-client.crt         | SSL cert to use for etcd                        |
+| etcd_peer_key_file  | {{ etcd_conf_dir }}/master.etcd-client.key         | SSL key to use for etcd                         |
+
+Dependencies
+------------
+
+openshift_facts
+
+Example Playbook
+----------------
+
+    - hosts: openshift_master
+      roles:
+         - { flannel_register }
+
+License
+-------
+
+Apache License, Version 2.0
+
+Author Information
+------------------
+
+Sylvain Baubeau <sbaubeau@redhat.com>
diff --git a/roles/flannel_register/defaults/main.yaml b/roles/flannel_register/defaults/main.yaml
new file mode 100644
index 000000000..269d1a17c
--- /dev/null
+++ b/roles/flannel_register/defaults/main.yaml
@@ -0,0 +1,11 @@
+---
+flannel_network: "{{ openshift.master.portal_net | default('172.30.0.0/16', true) }}"
+flannel_min_network: 172.30.5.0
+flannel_subnet_len: 24
+flannel_etcd_key: /openshift.com/network
+etcd_hosts: "{{ etcd_urls }}"
+etcd_conf_dir: "{{ openshift.common.config_base }}/master"
+etcd_peer_ca_file: "{{ etcd_conf_dir + '/ca.crt' if (openshift.master.embedded_etcd | bool) else etcd_conf_dir + '/master.etcd-ca.crt' }}"
+etcd_peer_cert_file: "{{ etcd_conf_dir }}/master.etcd-client.crt"
+etcd_peer_key_file: "{{ etcd_conf_dir }}/master.etcd-client.key"
+
diff --git a/roles/flannel_register/meta/main.yml b/roles/flannel_register/meta/main.yml
new file mode 100644
index 000000000..73bddcca4
--- /dev/null
+++ b/roles/flannel_register/meta/main.yml
@@ -0,0 +1,16 @@
+---
+galaxy_info:
+  author: Sylvain
+  description: register flannel configuration into etcd
+  company: Red Hat, Inc.
+  license: Apache License, Version 2.0
+  min_ansible_version: 1.2
+  platforms:
+  - name: EL
+    versions:
+    - 7
+  categories:
+  - cloud
+  - system
+dependencies:
+- { role: openshift_facts }
diff --git a/roles/flannel_register/tasks/main.yml b/roles/flannel_register/tasks/main.yml
new file mode 100644
index 000000000..1629157c8
--- /dev/null
+++ b/roles/flannel_register/tasks/main.yml
@@ -0,0 +1,14 @@
+---
+- name: Assures /etc/flannel dir exists
+  sudo: true
+  file: path=/etc/flannel state=directory
+
+- name: Generate etcd configuration for etcd
+  sudo: true
+  template:
+    src: "flannel-config.json"
+    dest: "/etc/flannel/config.json"
+
+- name: Insert flannel configuration into etcd
+  sudo: true
+  command: 'curl -L --cacert "{{ etcd_peer_ca_file }}" --cert "{{ etcd_peer_cert_file }}" --key "{{ etcd_peer_key_file }}" "{{ etcd_hosts[0] }}/v2/keys{{ flannel_etcd_key }}/config" -XPUT --data-urlencode value@/etc/flannel/config.json'
diff --git a/roles/flannel_register/templates/flannel-config.json b/roles/flannel_register/templates/flannel-config.json
new file mode 100644
index 000000000..89ce4c30b
--- /dev/null
+++ b/roles/flannel_register/templates/flannel-config.json
@@ -0,0 +1,8 @@
+{
+    "Network": "{{ flannel_network }}",
+    "SubnetLen": {{ flannel_subnet_len }},
+    "SubnetMin": "{{ flannel_min_network }}",
+    "Backend": {
+        "Type": "host-gw"
+     }
+}