kubeadm started cluster on localhost.

[Abdelfattah Mahran]

hi all,

I'm using kubeadm and it started the cluster on localhost. how can I access this cluster from outside. I gave kubeadm the needed parameters.

I'm using Centos-7

kubeadm init --skip-preflight-checks --api-advertise-addresses=10.103.12.23 --pod-network-cidr=10.244.0.0/16 --use-kubernetes-version=1.4.7

[root@centos-master ~]# kubectl cluster-info

Kubernetes master is running at http://localhost:8080

KubeDNS is running at http://localhost:8080/api/v1/proxy/namespaces/kube-system/services/kube-dns

To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.

[root@centos-master ~]# curl http://localhost:8080

{

  "paths": [

    "/api",

    "/api/v1",

    "/apis",

    "/apis/apps",

    "/apis/apps/v1alpha1",

    "/apis/authentication.k8s.io",

    "/apis/authentication.k8s.io/v1beta1",

    "/apis/authorization.k8s.io",

    "/apis/authorization.k8s.io/v1beta1",

    "/apis/autoscaling",

    "/apis/autoscaling/v1",

    "/apis/batch",

    "/apis/batch/v1",

    "/apis/batch/v2alpha1",

    "/apis/certificates.k8s.io",

    "/apis/certificates.k8s.io/v1alpha1",

    "/apis/extensions",

    "/apis/extensions/v1beta1",

    "/apis/policy",

    "/apis/policy/v1alpha1",

    "/apis/rbac.authorization.k8s.io",

    "/apis/rbac.authorization.k8s.io/v1alpha1",

    "/apis/storage.k8s.io",

    "/apis/storage.k8s.io/v1beta1",

    "/healthz",

    "/healthz/ping",

    "/logs",

    "/metrics",

    "/swaggerapi/",

    "/ui/",

    "/version"

  ]

}[root@centos-master ~]# kubectl config view

apiVersion: v1

clusters: []

contexts: []

current-context: ""

kind: Config

preferences: {}

users: []

also I had to use --skip-preflight-checks because it gave me the below error if anyone has a clue it would be great.

preflight] The system verification failed. Printing the output from the verification:

OS: Linux

KERNEL_VERSION: 3.10.0-514.el7.x86_64

CGROUPS_CPU: enabled

CGROUPS_CPUACCT: enabled

CGROUPS_CPUSET: enabled

CGROUPS_DEVICES: enabled

CGROUPS_FREEZER: enabled

CGROUPS_MEMORY: enabled

DOCKER_VERSION: 1.10.3

DOCKER_GRAPH_DRIVER: devicemapper

[preflight] Some fatal errors occurred:

        failed to parse kernel config: unable to load kernel module "configs": output - "modprobe: FATAL: Module configs not found.\n", err - exit status 1

[preflight] If you know what you are doing, you can skip pre-flight checks with `--skip-preflight-checks`

[root@centos-master ~]# uname -a

Linux centos-master 3.10.0-514.el7.x86_64 #1 SMP Tue Nov 22 16:42:41 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

[root@centos-master ~]# lsb_release -a

LSB Version:    :core-4.1-amd64:core-4.1-noarch

Distributor ID: CentOS

Description:    CentOS Linux release 7.3.1611 (Core)

Release:        7.3.1611

Codename:       Core

[root@centos-master ~]#

Thanks,

best regards,