From 14d4ea8b613329249b87a7cf84422a65a7d089a4 Mon Sep 17 00:00:00 2001
From: Sebastiaan van Steenis <mail@superseb.nl>
Date: Sun, 14 Jan 2018 18:52:01 +0100
Subject: [PATCH] Support for Calico on GCE

---
 README.md           |  2 +-
 cluster.yml         |  4 +++-
 templates/calico.go | 15 ++++++++-------
 3 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/README.md b/README.md
index e5ae66c8..3559d272 100644
--- a/README.md
+++ b/README.md
@@ -81,7 +81,7 @@ There are extra options that can be specified for each network plugin:
 - **calico_cni_image**: Calico CNI binary installer Docker image
 - **calico_controllers_image**: Calico Controller Docker image
 - **calicoctl_image**: Calicoctl tool Docker image
-- **calico_cloud_provider**: Cloud provider where Calico will operate, current available value is: `aws`
+- **calico_cloud_provider**: Cloud provider where Calico will operate, currently supported values are: `aws`, `gce`
 
 #### Cannal
 
diff --git a/cluster.yml b/cluster.yml
index 118c6a51..3f659845 100644
--- a/cluster.yml
+++ b/cluster.yml
@@ -10,8 +10,10 @@ auth:
 # canal
 # weave
 #
-# If you are using calico on AWS, use the network plugin config option:
+# If you are using calico on AWS or GCE, use the network plugin config option:
 # 'calico_cloud_provider: aws'
+# or
+# 'calico_cloud_provider: gce'
 network:
   plugin: flannel
   options:
diff --git a/templates/calico.go b/templates/calico.go
index a90265e0..840a3adc 100644
--- a/templates/calico.go
+++ b/templates/calico.go
@@ -469,13 +469,12 @@ metadata:
   namespace: kube-system
 
 
-{{if eq .CloudProvider "aws"}}
-## aws stuff here
+{{if ne .CloudProvider ""}}
 ---
 kind: ConfigMap
 apiVersion: v1
 metadata:
-  name: aws-ippool
+  name: {{.CloudProvider}}-ippool
   namespace: kube-system
 data:
   aws-ippool: |-
@@ -484,6 +483,8 @@ data:
     metadata:
       cidr: {{.ClusterCIDR}}
     spec:
+      ipip:
+        enabled: true
       nat-outgoing: true
 ---
 apiVersion: v1
@@ -497,7 +498,7 @@ spec:
   containers:
   - name: calicoctl
     image: {{.Calicoctl}}
-    command: ["/bin/sh", "-c", "calicoctl apply -f aws-ippool.yaml"]
+    command: ["/bin/sh", "-c", "calicoctl apply -f {{.CloudProvider}}-ippool.yaml"]
     env:
     - name: ETCD_ENDPOINTS
       valueFrom:
@@ -510,9 +511,9 @@ spec:
   volumes:
   - name: ippool-config
     configMap:
-      name: aws-ippool
+      name: {{.CloudProvider}}-ippool
       items:
-        - key: aws-ippool
-          path: aws-ippool.yaml
+        - key: {{.CloudProvider}}-ippool
+          path: {{.CloudProvider}}-ippool.yaml
           {{end}}
 `