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$# sudo hostnamectl set-hostname $hostname |
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$# sudo yum update -y && yum install -y yum-utils device-mapper-persistent-data lvm2
$# sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
$# sudo yum install -y docker-ce
$ sudo# systemctl start docker && sudo systemctl enable docker |
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$ sudo# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES |
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$# sudo setenforce 0
$# sudo sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config |
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$# sudo yum update -y && sudo yum install -y net-tools wget setuptool perl python-sphinx gcc make python-devel openssl-devel kernel-devel graphviz kernel-debug-devel autoconf automake rpm-build redhat-rpm-config libtool python-six checkpolicy selinux-policy-devel unbound-devel |
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$ sudo# reboot |
Build OpenvSwitch RPMs from source. In this tutorial, we use OpenvSwitch v2.10.2, and the minimum requirements on OpenvSwitch version is v2.7.0.
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$ sudo# systemctl start openvswitch && sudo systemctl enable openvswitch |
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$# sudo sed -i '/set ovsdb-server \"$DB_FILE\"/a \ set \"$@\" --remote=ptcp:6650' /usr/share/openvswitch/scripts/ovs-ctl
$# sudo systemctl restart openvswitch |
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$ sudo# bash -c 'cat <<EOF > /etc/sysctl.d/k8s.conf
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
EOF'
$# sudo sysctl --system
|
(Optional) Disable firewalld service.
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$ sudo# systemctl stop firewalld
$# sudo systemctl disable firewalld |
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$# sudo swapoff -a |
Reboot server.
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$ sudo# reboot |
Setup Kubernets yum repository in both master and worker nodes.
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$# sudo bash -c 'cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
exclude=kube*
EOF' |
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$# sudo yum install -y kubelet kubeadm kubectl --disableexcludes=kubernetes
$# sudo systemctl enable kubelet && sudo systemctl start kubelet |
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$# sudo kubeadm init --pod-network-cidr=20.20.0.0/16 |
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$# mkdir -p $HOME/.kube
$# sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
$ sudo# chown $(id -u):$(id -g) $HOME/.kube/config |
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$# kubectl get nodes
NAME STATUS ROLES AGE VERSION
k8s-master NotReady master 4m45s v1.14.2 |
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$# sudo kubeadm join 10.1.1.29:6443 --token 7wjotj.50lcr77dds50gh8q \
--discovery-token-ca-cert-hash sha256:d11c1256b16d8130596ca121a14b5900d11bc5bcc64a817db9190be00f70b161 |
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$# kubectl get nodes
NAME STATUS ROLES AGE VERSION
k8s-master NotReady master 4m45s v1.14.2
k8s-worker1 NotReady <none> 49s v1.14.2
k8s-worker2 NotReady <none> 46s v1.14.2 |
...
The status of the nodes will be shown as NotReady, because none of CNIs were installed yet.After all nodes are
joint to Kubernetes cluster, users need to manually remove kube-proxy daemonset. The current version of kubeadm does not allow to skip kube-proxy installation.Copy CA file from master node to worker node.
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$ kubectl delete ds kube-proxy -n kube-system |
# mkdir -p $HOME/.kube
# scp root@master:/etc/kubernetes/admin.conf $HOME/.kube/config
# chown $(id -u):$(id -g) $HOME/.kube/config |
After all nodes are joint to Kubernetes cluster, users need to manually remove kube-proxy daemonset. The current version of kubeadm does not allow to skip kube-proxy installation.Remove all rules installed by iptables. Note that the following commands should be executed at all nodes.
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$# sudokubectl iptablesdelete -tds nat -F
$ sudo iptables -F
$ sudo iptables -X |
SONA-CNI Installation
kube-proxy -n kube-system |
Remove all rules installed by iptables. Note that the following commands should be executed at all nodes.Install python-pip dependencies.
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$# sudoiptables yum-t installnat epel-releaseF
# iptables -yF
$# sudo yum install python-pip -y |
...
SONA CNI Installation
Install python-pip and jinja2 dependency.
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$# yum gitinstall clone https://github.com/sonaproject/sona-cni.git && cd sona-cni |
...
epel-release -y
# yum install python-pip -y
# pip install jinja2-cli |
Specify external_gateway_ip and external_interface and compose a valid onos.yml.
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$# sudo pip install -r requirements.txt |
Configure sona-cni via editing file located under etc/sona/sona-cni.conf
wget http://bit.ly/2RidmZc && jinja2 2RidmZc -D ext_intf=eth2 -D ext_gw_ip=172.16.230.1 > onos.yml && rm 2RidmZc |
Please review the onos.yml, make sure external_interface and external_gateway_ip have valid value.
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data:
...
sona_network_config: |-
# Configuration options for ONOS CNI plugin endpoint
[network]
# Overlay |
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# Configuration options for ONOS CNI plugin endpoint
[onos]
# (StrOpt) ONOS REST interface URL. This is a mandatory field.
url_path = http://ONOS_IP:8181/onos/k8snetworking
# (StrOpt) Username for authentication. This is a mandatory field.
username = onos
# (StrOpt) Password for authentication. This is a mandatory field.
password = rocks
[network]
# (StrOpt) Default overlay network type (VXLAN, GRE, GENEVE).
This is an optionaltype field,= VXLAN
is the default value.
# type = VXLAN
# (StrOpt) Default segment Segment identifier of the network. This is an optional field, 100 is the default value.
#
segment_id = 100
# (StrOpt) External uplink interface name.
This is a mandatory field.
external_interface = ens7eth2
# (StrOpt) External gateway IP address.
This is a mandatory field.
external_gateway_ip = 192172.16816.1230.1
# (StrOpt)Service Transient network CIDR.
This is an optional field. If not specified 172.10service_cidr = 10.96.0.0/16 will be used in stread.
# transient_cidr = 172.10.0.0/16
# (StrOpt) Service network CIDR. This is an optional field. If not specified 10.96.0.0/12 will be used instead.
# service_cidr = 10.96.0.0/12
# (StrOpt) Network Maximum Transmission Unit (MTU). This is a mandatory field.
mtu = 1400 |
Make sure to change the ONOS_IP to correct IP address. Also need to specify the external_interface and external_gateway_ip. It is optional to change other attributes.
Install sona-cni.
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$ sudo python setup.py install |
Configure the external interface.
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$ sudo python config-external.py |
ONOS/SONA Installation and Setup
Since ONOS is relying on Java, we need to install Java first. In this tutorial, we will install OpenJDK on CentOS 7.X. ONOS should be installed on master node.
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$ sudo yum -y install java-1.8.0-openjdk java-1.8.0-openjdk-devel zip unzip |
We need to add "sdn" user on master node, and grant all privileges to "sdn" user by adding it into sudoer group.
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$ sudo adduser sdn
$ sudo passwd sdn
$ sudo bash -c 'cat <<EOF >> /etc/sudoers
sdn ALL=(ALL) NOPASSWD:ALL
EOF' |
(deployment node) To deploy ONOS, we need to setup a deployment node. You can deploy ONOS from master node, but we recommend the user to deploy ONOS from deployment node. At deployment node, you need to install OpenJDK and git dependencies.
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$ sudo yum -y install java-1.8.0-openjdk java-1.8.0-openjdk-devel zip unzip git curl |
(deployment node) After that, clone the ONOS source from official repository and build.
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$ git clone http://gerrit.onosproject.org/onos
$ git checkout onos-1.15
$ echo 'ONOS_ROOT=~/onos' >> .bash_profile
$ echo '. $ONOS_ROOT/tools/dev/bash_profile' >> .bash_profile
$ source .bash_profile
$ o
$ ob
$ ssh-copy-id sdn@k8s-master-node |
(deployment node) Generate a SONA-CNI cell file to automatically start k8s related ONOS application during deployment.
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$ sudo bash -c 'cat <<EOF > ~/onos/tools/test/cells/sona-k8s
export OC1="$k8s-master-node"
export ONOS_APPS="drivers,openflow-base,k8s-networking"
EOF'
$ cell sona-k8s |
Note that, you need to change the $k8s-master-node with its real IP address.
(deployment node) After build all ONOS source, deploy ONOS to the master node.
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$ stc setup |
If you run ONOS in the master node please change the default OVSDB port number from 6640 to 6650.
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$ onos
Welcome to Open Network Operating System (ONOS)!
____ _ ______ ____
/ __ \/ |/ / __ \/ __/
/ /_/ / / /_/ /\ \
\____/_/|_/\____/___/
Documentation: wiki.onosproject.org
Tutorials: tutorials.onosproject.org
Mailing lists: lists.onosproject.org
Come help out! Find out how at: contribute.onosproject.org
Hit '<tab>' for a list of available commands
and '[cmd] --help' for help on a specific command.
Hit '<ctrl-d>' or type 'system:shutdown' or 'logout' to shutdown ONOS.
onos> cfg set org.onosproject.k8snode.impl.DefaultK8sNodeHandler ovsdbPortNum 6650 |
Generate a configuration file (e.g., api-cfg-k8s.json) used for authenticating with Kubernetes API server. Followings are the example config file, please copy the corresponding content from ~/.kube/config file.
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{
"apiConfigs" : [
{
"scheme" : "HTTPS",
"ipAddress" : "10.2.1.45",
"port" : 6443,
"token": "7wjotj.50lcr77dds50gh8q",
"caCertData": "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",
"clientCertData": "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",
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}
]
} |
Push the config into the ONOS through REST API.
| Code Block |
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| language | bash |
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| theme | Midnight |
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$ curl --user onos:rocks -X POST -H "Content-Type: application/json" http://$OC1:8181/onos/k8snode/configure/api -d @api-cfg-k8s.json |
Configure route in each node by running following command under sona-cni source directory.
12
# Network Maximum Transmission Unit (MTU).
mtu = 1400 |
Install SONA CNI through yml file.
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| language | bash |
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| theme | Midnight |
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# kubectl apply -f onos.yml |
Need to wait a while to make sure all PODs are in READY (1/1, 2/2) state.
| Code Block |
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| language | bash |
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| theme | Midnight |
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|
# kubectl get po -n kube-system
NAME READY STATUS RESTARTS AGE
coredns-5c98db65d4-98wkp 1/1 Running 2 59m
coredns-5c98db65d4-b5h6b 1/1 Running 2 59m
etcd-ubuntu-test-master 1/1 Running 0 59m
kube-apiserver-ubuntu-test-master 1/1 Running 0 59m
kube-controller-manager-ubuntu-test-master 1/1 Running 0 59m
kube-scheduler-ubuntu-test-master 1/1 Running 0 59m
sona-atomix-0 1/1 Running 0 59m
sona-dummy-cr6ch 1/1 Running 0 59m
sona-dummy-z72p8 1/1 Running 0 59m
sona-node-b4mp8 2/2 Running 0 59m
sona-node-n52lx 2/2 Running 0 59m
sona-onos-0 1/1 Running 0 59m
sona-onos-config-0 1/1 Running 0 59m
tiller-deploy-54f7455d59-gtp4m 1/1 Running 0 59m |
| Code Block |
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| language | bash |
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| theme | Midnight |
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|
$ sudo python config-route.py |
Access ONOS shell, and issue following commands to make sure all Kubernetes nodes are discovered and running under COMPLETE status.
...
| Code Block |
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| language | bash |
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| theme | Midnight |
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$# curl https://raw.githubusercontent.com/kubernetes/helm/master/scripts/get | bash
$# cat > /tmp/helm.yaml <<EOF
apiVersion: v1
kind: ServiceAccount
metadata:
name: helm
namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
name: helm
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: cluster-admin
subjects:
- kind: ServiceAccount
name: helm
namespace: kube-system
EOF
$# kubectl create -f /tmp/helm.yaml
$# helm init --service-account helm
$# helm repo add incubator https://kubernetes-charts-incubator.storage.googleapis.com/ |
...