...
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!/bin/bash DOCKER_VERSION=18.09.5 sudo apt-get update curl https://releases.rancher.com/install-docker/$DOCKER_VERSION.sh | sh mkdir -p /etc/systemd/system/docker.service.d/ cat > /etc/systemd/system/docker.service.d/docker.conf << EOF [Service] ExecStart= ExecStart=/usr/bin/dockerd -H fd:// --insecure-registry=nexus3.onap.org:10001 EOF sudo usermod -aG docker ubuntu systemctl daemon-reload systemctl restart docker apt-mark hold docker-ce IP_ADDR=ip address |grep ens|grep inet|awk '{print $2}'| awk -F / '{print $1}' HOSTNAME=hostname echo "$IP_ADDR $HOSTNAME" >> /etc/hosts docker login -u docker -p docker nexus3.onap.org:10001 sudo apt-get install make -y wget https://storage.googleapis.com/kubernetes-release/release/v1.13.5/bin/linux/amd64/kubectl chmod +x kubectl sudo mv ./kubectl /usr/local/bin/kubectl wget http://storage.googleapis.com/kubernetes-helm/helm-v2.12.3-linux-amd64.tar.gz tar -zxvf helm-v2.12.3-linux-amd64.tar.gz sudo mv linux-amd64/helm /usr/local/bin/helm sudo apt-get update sudo apt-get upgrade -y exit 0 |
...
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!/bin/bash DOCKER_VERSION=18.09.5 sudo apt-get update curl https://releases.rancher.com/install-docker/$DOCKER_VERSION.sh | sh mkdir -p /etc/systemd/system/docker.service.d/ cat > /etc/systemd/system/docker.service.d/docker.conf << EOF [Service] ExecStart= ExecStart=/usr/bin/dockerd -H fd:// --insecure-registry=nexus3.onap.org:10001 EOF sudo usermod -aG docker ubuntu systemctl daemon-reload systemctl restart docker apt-mark hold docker-ce IP_ADDR=ip address |grep ens|grep inet|awk '{print $2}'| awk -F / '{print $1}' HOSTNAME=hostname echo "$IP_ADDR $HOSTNAME" >> /etc/hosts docker login -u docker -p docker nexus3.onap.org:10001 sudo apt-get install make -y wget https://storage.googleapis.com/kubernetes-release/release/v1.13.5/bin/linux/amd64/kubectl chmod +x kubectl sudo mv ./kubectl /usr/local/bin/kubectl sudo apt-get update sudo apt-get upgrade -y exit 0 |
...
- update ubuntu
- install docker
- install nfs common
- download and install kubectl
- update and upgrade ubuntu
Launched k8s instances
Configure Rancher Kubernetes Engine
Install RKE
Download and install RKE on a VM, desktop or laptop. Binaries can be found here for Linux and Mac: https://github.com/rancher/rke/releases/tag/v0.2.1
Perform this on linux based personal laptop, local machine or a VM which has the connectivity to the created VMs on OpenStack and whose key has been configured during creation of VMs.
In our setup, the key of OpenStack controller has been used to login into VMs, so these steps have been performed on OpenStack controller.
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mkdir rke
cd rke/
wget https://github.com/rancher/rke/releases/download/v0.2.1/rke_linux-amd64
mv rke_linux-amd64 rke
chmod -x rke |
RKE requires a cluster.yml as input. An example file is show below that describes a Kubernetes cluster that will be mapped onto the OpenStack VMs created earlier in this guide.
Example: cluster.yml
The example file:
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# An example of an HA Kubernetes cluster for ONAP
nodes:
- address: 10.31.3.2
port: "22"
role:
- controlplane
- etcd
hostname_override: "onap-control-1"
user: ubuntu
ssh_key_path: "~/.ssh/id_rsa"
- address: 10.31.3.3
port: "22"
role:
- controlplane
- etcd
hostname_override: "onap-control-2"
user: ubuntu
ssh_key_path: "~/.ssh/id_rsa"
- address: 10.31.3.16
port: "22"
role:
- controlplane
- etcd
hostname_override: "onap-control-3"
user: ubuntu
ssh_key_path: "~/.ssh/id_rsa"
- address: 10.31.3.15
port: "22"
role:
- worker
hostname_override: "onap-k8s-1"
user: ubuntu
ssh_key_path: "~/.ssh/id_rsa"
- address: 10.31.3.9
port: "22"
role:
- worker
hostname_override: "onap-k8s-2"
user: ubuntu
ssh_key_path: "~/.ssh/id_rsa"
- address: 10.31.3.29
port: "22"
role:
- worker
hostname_override: "onap-k8s-3"
user: ubuntu
ssh_key_path: "~/.ssh/id_rsa"
- address: 10.31.3.8
port: "22"
role:
- worker
hostname_override: "onap-k8s-4"
user: ubuntu
ssh_key_path: "~/.ssh/id_rsa"
- address: 10.31.3.5
port: "22"
role:
- worker
hostname_override: "onap-k8s-5"
user: ubuntu
ssh_key_path: "~/.ssh/id_rsa"
- address: 10.31.3.23
port: "22"
role:
- worker
hostname_override: "onap-k8s-6"
user: ubuntu
ssh_key_path: "~/.ssh/id_rsa"
- address: 10.31.3.1
port: "22"
role:
- worker
hostname_override: "onap-k8s-7"
user: ubuntu
ssh_key_path: "~/.ssh/id_rsa"
- address: 10.31.3.24
port: "22"
role:
- worker
hostname_override: "onap-k8s-8"
user: ubuntu
ssh_key_path: "~/.ssh/id_rsa"
- address: 10.31.3.11
port: "22"
role:
- worker
hostname_override: "onap-k8s-9"
user: ubuntu
ssh_key_path: "~/.ssh/id_rsa"
- address: 10.31.3.35
port: "22"
role:
- worker
hostname_override: "onap-k8s-10"
user: ubuntu
ssh_key_path: "~/.ssh/id_rsa"
- address: 10.31.3.13
port: "22"
role:
- worker
hostname_override: "onap-k8s-11"
user: ubuntu
ssh_key_path: "~/.ssh/id_rsa"
- address: 10.31.3.10
port: "22"
role:
- worker
hostname_override: "onap-k8s-12"
user: ubuntu
ssh_key_path: "~/.ssh/id_rsa"
services:
kube-api:
service_cluster_ip_range: 10.43.0.0/16
pod_security_policy: false
always_pull_images: false
kube-controller:
cluster_cidr: 10.42.0.0/16
service_cluster_ip_range: 10.43.0.0/16
kubelet:
cluster_domain: cluster.local
cluster_dns_server: 10.43.0.10
fail_swap_on: false
network:
plugin: canal
authentication:
strategy: x509
ssh_key_path: "~/.ssh/id_rsa"
ssh_agent_auth: false
authorization:
mode: rbac
ignore_docker_version: false
kubernetes_version: "v1.13.5-rancher1-2"
private_registries:
- url: nexus3.onap.org:10001
user: docker
password: docker
is_default: true
cluster_name: "onap"
restore:
restore: false
snapshot_name: "" |