Merge "Add gate script to deploy kubernetes using kubeadm."
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Zuul
Gerrit Code Review
commit
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228
tools/gate/deploy-k8s-kubeadm.sh
Executable file
228
tools/gate/deploy-k8s-kubeadm.sh
Executable file
@ -0,0 +1,228 @@
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#!/bin/bash
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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set -ex
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: "${HELM_VERSION:="v3.6.3"}"
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: "${KUBE_VERSION:="1.21.5-00"}"
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: "${CALICO_VERSION:="v3.20"}"
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: "${YQ_VERSION:="v4.6.0"}"
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export DEBCONF_NONINTERACTIVE_SEEN=true
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export DEBIAN_FRONTEND=noninteractive
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sudo swapoff -a
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echo "DefaultLimitMEMLOCK=16384" | sudo tee -a /etc/systemd/system.conf
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sudo systemctl daemon-reexec
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function configure_resolvconf {
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# here with systemd-resolved disabled, we'll have 2 separate resolv.conf
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# 1 - /etc/resolv.conf - to be used for resolution on host
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kube_dns_ip="10.96.0.10"
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# keep all nameservers from both resolv.conf excluding local addresses
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old_ns=$(grep -P --no-filename "^nameserver\s+(?!127\.0\.0\.|${kube_dns_ip})" \
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/etc/resolv.conf /run/systemd/resolve/resolv.conf | sort | uniq)
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# Add kube-dns ip to /etc/resolv.conf for local usage
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sudo bash -c "echo 'nameserver ${kube_dns_ip}' > /etc/resolv.conf"
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if [ -z "${HTTP_PROXY}" ]; then
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sudo bash -c "printf 'nameserver 8.8.8.8\nnameserver 8.8.4.4\n' > /run/systemd/resolve/resolv.conf"
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sudo bash -c "printf 'nameserver 8.8.8.8\nnameserver 8.8.4.4\n' >> /etc/resolv.conf"
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else
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sudo bash -c "echo \"${old_ns}\" > /run/systemd/resolve/resolv.conf"
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sudo bash -c "echo \"${old_ns}\" >> /etc/resolv.conf"
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fi
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for file in /etc/resolv.conf /run/systemd/resolve/resolv.conf; do
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sudo bash -c "echo 'search svc.cluster.local cluster.local' >> ${file}"
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sudo bash -c "echo 'options ndots:5 timeout:1 attempts:1' >> ${file}"
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done
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}
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# NOTE: Clean Up hosts file
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sudo sed -i '/^127.0.0.1/c\127.0.0.1 localhost localhost.localdomain localhost4localhost4.localdomain4' /etc/hosts
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sudo sed -i '/^::1/c\::1 localhost6 localhost6.localdomain6' /etc/hosts
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configure_resolvconf
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# shellcheck disable=SC1091
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. /etc/os-release
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# NOTE: Add docker repo
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curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
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sudo apt-key fingerprint 0EBFCD88
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sudo add-apt-repository \
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"deb [arch=amd64] https://download.docker.com/linux/ubuntu \
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$(lsb_release -cs) \
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stable"
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# NOTE: Configure docker
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docker_resolv="/run/systemd/resolve/resolv.conf"
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docker_dns_list="$(awk '/^nameserver/ { printf "%s%s",sep,"\"" $NF "\""; sep=", "} END{print ""}' "${docker_resolv}")"
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sudo -E mkdir -p /etc/docker
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sudo -E tee /etc/docker/daemon.json <<EOF
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{
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"exec-opts": ["native.cgroupdriver=systemd"],
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"log-driver": "json-file",
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"log-opts": {
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"max-size": "100m"
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},
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"storage-driver": "overlay2",
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"live-restore": true,
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"dns": [${docker_dns_list}]
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}
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EOF
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if [ -n "${HTTP_PROXY}" ]; then
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sudo mkdir -p /etc/systemd/system/docker.service.d
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cat <<EOF | sudo -E tee /etc/systemd/system/docker.service.d/http-proxy.conf
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[Service]
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Environment="HTTP_PROXY=${HTTP_PROXY}"
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Environment="HTTPS_PROXY=${HTTPS_PROXY}"
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Environment="NO_PROXY=${NO_PROXY}"
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EOF
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fi
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sudo -E apt-get update
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sudo -E apt-get install -y \
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docker-ce \
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docker-ce-cli \
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containerd.io \
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socat \
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jq \
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util-linux \
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bridge-utils \
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iptables \
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conntrack \
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libffi-dev \
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ipvsadm \
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make \
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bc \
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git-review \
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notary
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# Prepare tmpfs for etcd when running on CI
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# CI VMs can have slow I/O causing issues for etcd
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# Only do this on CI (when user is zuul), so that local development can have a kubernetes
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# environment that will persist on reboot since etcd data will stay intact
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if [ "$USER" = "zuul" ]; then
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sudo mkdir -p /var/lib/kubeadm/etcd
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sudo mount -t tmpfs -o size=512m tmpfs /var/lib/kubeadm/etcd
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fi
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# Install YQ
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wget https://github.com/mikefarah/yq/releases/download/${YQ_VERSION}/yq_linux_amd64.tar.gz -O - | tar xz && sudo mv yq_linux_amd64 /usr/local/bin/yq
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# Install kubeadm kubectl and kublet
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echo "deb [signed-by=/usr/share/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list
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sudo apt-get update
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sudo apt-get install -y kubelet=$KUBE_VERSION kubeadm=$KUBE_VERSION kubectl=$KUBE_VERSION
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sudo apt-mark hold kubelet kubeadm kubectl
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# Install Helm
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TMP_DIR=$(mktemp -d)
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sudo -E bash -c \
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"curl -sSL https://get.helm.sh/helm-${HELM_VERSION}-linux-amd64.tar.gz | tar -zxv --strip-components=1 -C ${TMP_DIR}"
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sudo -E mv "${TMP_DIR}"/helm /usr/local/bin/helm
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rm -rf "${TMP_DIR}"
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# NOTE: Deploy kubernetes using kubeadm. A CNI that supports network policy is
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# required for validation; use calico for simplicity.
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sudo kubeadm init --pod-network-cidr=192.168.0.0/16
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mkdir -p $HOME/.kube
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sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
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sudo chown $(id -u):$(id -g) $HOME/.kube/config
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# Taing the node so that the pods can be deployed on master nodes.
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kubectl taint nodes --all node-role.kubernetes.io/master-
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curl https://docs.projectcalico.org/"${CALICO_VERSION}"/manifests/calico.yaml -o /tmp/calico.yaml
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sed -i -e 's#docker.io/calico/#quay.io/calico/#g' /tmp/calico.yaml
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# Download images needed for calico before applying manifests, so that `kubectl wait` timeout
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# for `k8s-app=kube-dns` isn't reached by slow download speeds
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awk '/image:/ { print $2 }' /tmp/calico.yaml | xargs -I{} sudo docker pull {}
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kubectl apply -f /tmp/calico.yaml
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# Note: Patch calico daemonset to enable Prometheus metrics and annotations
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tee /tmp/calico-node.yaml << EOF
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spec:
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template:
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metadata:
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annotations:
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prometheus.io/scrape: "true"
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prometheus.io/port: "9091"
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spec:
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containers:
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- name: calico-node
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env:
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- name: FELIX_PROMETHEUSMETRICSENABLED
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value: "true"
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- name: FELIX_PROMETHEUSMETRICSPORT
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value: "9091"
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- name: FELIX_IGNORELOOSERPF
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value: "true"
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EOF
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kubectl -n kube-system patch daemonset calico-node --patch "$(cat /tmp/calico-node.yaml)"
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kubectl get pod -A
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kubectl -n kube-system get pod -l k8s-app=kube-dns
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# NOTE: Wait for dns to be running.
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END=$(($(date +%s) + 240))
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until kubectl --namespace=kube-system \
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get pods -l k8s-app=kube-dns --no-headers -o name | grep -q "^pod/coredns"; do
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NOW=$(date +%s)
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[ "${NOW}" -gt "${END}" ] && exit 1
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echo "still waiting for dns"
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sleep 10
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done
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kubectl -n kube-system wait --timeout=240s --for=condition=Ready pods -l k8s-app=kube-dns
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# Remove stable repo, if present, to improve build time
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helm repo remove stable || true
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# Add labels to the core namespaces & nodes
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kubectl label --overwrite namespace default name=default
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kubectl label --overwrite namespace kube-system name=kube-system
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kubectl label --overwrite namespace kube-public name=kube-public
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kubectl label nodes --all openstack-control-plane=enabled
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kubectl label nodes --all openstack-compute-node=enabled
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kubectl label nodes --all openvswitch=enabled
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kubectl label nodes --all linuxbridge=enabled
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kubectl label nodes --all ceph-mon=enabled
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kubectl label nodes --all ceph-osd=enabled
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kubectl label nodes --all ceph-mds=enabled
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kubectl label nodes --all ceph-rgw=enabled
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kubectl label nodes --all ceph-mgr=enabled
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for NAMESPACE in ceph openstack osh-infra; do
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tee /tmp/${NAMESPACE}-ns.yaml << EOF
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apiVersion: v1
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kind: Namespace
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metadata:
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labels:
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kubernetes.io/metadata.name: ${NAMESPACE}
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name: ${NAMESPACE}
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name: ${NAMESPACE}
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EOF
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kubectl create -f /tmp/${NAMESPACE}-ns.yaml
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done
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@ -62,6 +62,25 @@
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- ./tools/deployment/common/000-install-packages.sh
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- ./tools/gate/deploy-k8s.sh
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- job:
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name: openstack-helm-infra-deploy-kubeadm
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parent: openstack-helm-infra-functional
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timeout: 7200
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roles:
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- zuul: zuul/zuul-jobs
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pre-run: playbooks/osh-infra-upgrade-host.yaml
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post-run: playbooks/osh-infra-collect-logs.yaml
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nodeset: openstack-helm-single-node
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vars:
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osh_params:
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openstack_release: train
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container_distro_name: ubuntu
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container_distro_version: bionic
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gate_scripts_relative_path: ../openstack-helm-infra
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gate_scripts:
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- ./tools/deployment/common/000-install-packages.sh
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- ./tools/gate/deploy-k8s-kubeadm.sh
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- job:
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name: openstack-helm-infra-bandit
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run: playbooks/osh-infra-bandit.yaml
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@ -64,4 +64,5 @@
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- openstack-helm-infra-metacontroller
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- openstack-helm-infra-aio-monitoring-tls
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- openstack-helm-infra-aio-logging-tls
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- openstack-helm-infra-deploy-kubeadm
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...
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