Kubernetes FAQ

env.sh

#!/usr/bin/env bash

# Place file in ./cluster/env.sh

DEBUG=${DEBUG:-"false"}

if [ "${DEBUG}" = "true" ]; then
  set -o xtrace
fi

KUBERNETES_PROVIDER=aws
KUBE_AWS_INSTANCE_PREFIX="kb"
#KUBE_SHARE_MASTER=true

#MASTER_RESERVED_IP="auto"

NODE_ROOT_DISK_SIZE=8
#VPC_ID="none"
KUBE_AWS_ZONE="us-east-1c"
MASTER_SIZE="t2.micro"
NODE_SIZE="t2.micro"
NUM_NODES=1
AWS_S3_REGION="us-east-1"

#KUBE_SUBNET_CIDR="10.0.8.0/24"
#MASTER_INTERNAL_IP="10.0.8.10"

#SERVICE_CLUSTER_IP_RANGE="10.247.0.0/16"
#DNS_SERVER_IP="10.247.0.10"
#SUBNET_ID="subnet-f745a8af"

# make_bucket failed: s3://kubernetes-artifacts/ A client error (BucketAlreadyExists) occurred when calling the CreateBucket operation: The requested bucket name is not available. The bucket namespace is shared by all users of the system. Please select a different name and try again.
#AWS_S3_BUCKET="kubernetes-artifacts"

CLUSTER_IP_RANGE="${CLUSTER_IP_RANGE:-10.244.0.0/16}"
MASTER_IP_RANGE="${MASTER_IP_RANGE:-10.246.0.0/24}"
MASTER_DISK_TYPE="standard"
NODE_ROOT_DISK_TYPE="standard"

kubernetes.md

• Multiple CLI configuration profiles: kubernetes/kubernetes#10735

$ export KUBERNETES_CONFIG=/User/me/.kube/aws
$ cluster/kubectl.sh cluster-info

[ aws cluster info]

$ export KUBERNETES_CONFIG=/User/me/.kube/gce
$ cluster/kubectl.sh cluster-info

[ gce cluster info ] 

• DNS in Kubernetes: https://github.com/kubernetes/kubernetes/tree/master/cluster/addons/dns
  • Problem with routings: kubernetes/kubernetes#12449
• Get service info: http://kubernetes.io/v1.1/docs/user-guide/environment-guide/README.html
• To debug problems use command: kubectl describe pod <pod-name>
• Services(open ports): http://kubernetes.io/v1.1/docs/user-guide/services.html#virtual-ips-and-service-proxies