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#!/bin/bash
# Copyright (c) 2021 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
function k8s_utils.destroy {
# Destroy existing Kubernetes deployment
kubectl drain $HOSTNAME --delete-local-data --force --ignore-daemonsets
kubectl delete node $HOSTNAME
# Revert any changes made to this host by 'kubeadm init' or 'kubeadm join'
sudo kubeadm reset --force && sudo rm -rf $HOME/.kube || \
{ echo "Failed to reset kubeadm"; exit 1; }
}
function k8s_utils.prepare {
# Sets up the Kubernetes master
# Disable swap
sudo swapoff --all
# Set up the Kubernetes master
sudo -E kubeadm init --token-ttl 0 ${1} || \
{ echo "Failed to init kubeadm"; exit 1; }
# Make cgroup non-exclusive for CPU and MEM
sudo cgset -r cpuset.cpu_exclusive=0 /kubepods
sudo cgset -r cpuset.mem_exclusive=0 /kubepods
rm -rf $HOME/.kube
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
}
function k8s_utils.taint {
# Updates the taints
kubectl taint nodes --all node-role.kubernetes.io/master- || \
{ echo "Failed to taint nodes"; exit 1; }
}
function k8s_utils.calico_deploy {
# Calico yaml URL or file
k8s_calico=$1
# Apply resources
kubectl apply -f ${k8s_calico} || \
{ echo "Failed to apply ${k8s_calico}"; exit 1; }
# Update the taints
k8s_utils.taint
}
function k8s_utils.contiv_vpp_deploy {
# Contiv yaml URL or file
k8s_contiv=$1
k8s_contiv_patch="kubecon.contiv-vpp-yaml-patch.diff"
# Pull the most recent Docker images
bash <(curl -s https://raw.githubusercontent.com/contiv/vpp/master/k8s/pull-images.sh)
# Apply resources
wget ${k8s_contiv}
patch contiv-vpp.yaml -i ${k8s_contiv_patch} -o - | kubectl apply -f - || \
{ echo "Failed to apply Contiv resources"; exit 1; }
rm contiv-vpp.yaml
# Update the taints
k8s_utils.taint
}
function k8s_utils.cri_shim_install {
# Install the CRI Shim on host
sudo su root -c 'bash <(curl -s https://raw.githubusercontent.com/contiv/vpp/master/k8s/cri-install.sh)'
}
function k8s_utils.cri_shim_uninstall {
# Uninstall the CRI Shim on host
sudo su root -c 'bash <(curl -s https://raw.githubusercontent.com/contiv/vpp/master/k8s/cri-install.sh) --uninstall'
}
function k8s_utils.kube_proxy_install {
# Installing custom version of Kube-Proxy to enable Kubernetes services
bash <(curl -s https://raw.githubusercontent.com/contiv/vpp/master/k8s/proxy-install.sh)
}
function k8s_utils.apply {
# Resource yaml URL or file
k8s_resource=$1
# Apply resources
kubectl apply -f ${k8s_resource} || \
{ echo "Failed to apply ${k8s_resource}"; exit 1; }
}
function k8s_utils.resource_delete {
# Resource yaml URL or file
k8s_resource=$1
# Delete resources
kubectl delete -f ${k8s_resource} || \
{ echo "Failed to delete ${k8s_resource}"; exit 1; }
}
function k8s_utils.affinity_non_vpp {
# Set affinity for all non VPP docker containers to CPU 0
for i in `sudo docker ps --format "{{.ID}} {{.Names}}" | grep -v vpp | cut -d' ' -f1`; do
sudo docker update --cpuset-cpus 0 ${i}
done
}
function k8s_utils.dump_all {
# Dumps the kubernetes objects
kubectl get all --all-namespaces
kubectl describe nodes
}
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