Point apiserver address to 0.0.0.0 (#1617)

* Point apiserver address to 0.0.0.0
Added loadbalancer api server address
* Update documentation

contrib/terraform/aws/README.md

@@ -25,16 +25,24 @@ export AWS_DEFAULT_REGION="zzz"
 - Rename `contrib/terraform/aws/terraform.tfvars.example` to `terraform.tfvars`
 
 - Update `contrib/terraform/aws/terraform.tfvars` with your data
- - Allocate new AWS Elastic IPs: Depending on # of Availability Zones used (2 for each AZ)
+- Allocate a new AWS Elastic IP. Use this for your `loadbalancer_apiserver_address` value (below)
- - Create an AWS EC2 SSH Key
+- Create an AWS EC2 SSH Key
-
-
 - Run with `terraform apply --var-file="credentials.tfvars"` or `terraform apply` depending if you exported your AWS credentials
 
+Example:
+```commandline
+terraform apply -var-file=credentials.tfvars -var 'loadbalancer_apiserver_address=34.212.228.77'
+```
+
 - Terraform automatically creates an Ansible Inventory file called `hosts` with the created infrastructure in the directory `inventory`
 
 - Once the infrastructure is created, you can run the kubespray playbooks and supply inventory/hosts with the `-i` flag.
 
+Example (this one assumes you are using CoreOS)
+```commandline
+ansible-playbook -i ./inventory/hosts ./cluster.yml -e ansible_ssh_user=core -e bootstrap_os=coreos -b --become-user=root --flush-cache 
+```
+
 **Troubleshooting**
 
 ***Remaining AWS IAM Instance Profile***:

contrib/terraform/aws/create-infrastructure.tf

@@ -173,8 +173,7 @@ data "template_file" "inventory" {
         list_etcd = "${join("\n",aws_instance.k8s-etcd.*.tags.Name)}"
         elb_api_fqdn = "apiserver_loadbalancer_domain_name=\"${module.aws-elb.aws_elb_api_fqdn}\""
         elb_api_port = "loadbalancer_apiserver.port=${var.aws_elb_api_port}"
-        kube_insecure_apiserver_address = "kube_apiserver_insecure_bind_address: ${var.kube_insecure_apiserver_address}"
+        loadbalancer_apiserver_address = "loadbalancer_apiserver.address=${var.loadbalancer_apiserver_address}"
-
     }
 
 }

contrib/terraform/aws/templates/inventory.tpl

@@ -25,4 +25,4 @@ kube-master
 [k8s-cluster:vars]
 ${elb_api_fqdn}
 ${elb_api_port}
-${kube_insecure_apiserver_address}
+${loadbalancer_apiserver_address}

contrib/terraform/aws/terraform.tfvars

@@ -5,11 +5,11 @@ aws_cluster_name = "devtest"
 aws_vpc_cidr_block = "10.250.192.0/18"
 aws_cidr_subnets_private = ["10.250.192.0/20","10.250.208.0/20"]
 aws_cidr_subnets_public = ["10.250.224.0/20","10.250.240.0/20"]
-aws_avail_zones = ["eu-central-1a","eu-central-1b"]
+aws_avail_zones = ["us-west-2a","us-west-2b"]
 
 #Bastion Host
-aws_bastion_ami = "ami-5900cc36"
+aws_bastion_ami = "ami-db56b9a3"
-aws_bastion_size = "t2.small"
+aws_bastion_size = "t2.medium"
 
 
 #Kubernetes Cluster
@@ -23,9 +23,10 @@ aws_etcd_size = "t2.medium"
 aws_kube_worker_num = 4
 aws_kube_worker_size = "t2.medium"
 
-aws_cluster_ami = "ami-903df7ff"
+aws_cluster_ami = "ami-db56b9a3"
 
 #Settings AWS ELB
 
-aws_elb_api_port = 443
+aws_elb_api_port = 6443
-k8s_secure_api_port = 443
+k8s_secure_api_port = 6443
+kube_insecure_apiserver_address = "0.0.0.0"

contrib/terraform/aws/variables.tf

@@ -96,6 +96,6 @@ variable "k8s_secure_api_port" {
     description = "Secure Port of K8S API Server"
 }
 
-variable "kube_insecure_apiserver_address" {
+variable "loadbalancer_apiserver_address" {
-    description= "Bind Address for insecure Port of K8s API Server"
+    description= "Bind Address for ELB of K8s API Server"
 }