[CKS] script to generate cks images with cilium as default CNI #12619
+315
−0
There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
|
|
||
| [Service] | ||
| Environment="KUBELET_KUBECONFIG_ARGS=--bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.conf --kubeconfig=/etc/kubernetes/kubelet.conf" | ||
| Environment="KUBELET_CONFIG_ARGS=--config=/var/lib/kubelet/config.yaml" | ||
| # This is a file that "kubeadm init" and "kubeadm join" generate at runtime, populating the KUBELET_KUBEADM_ARGS variable dynamically | ||
| EnvironmentFile=-/var/lib/kubelet/kubeadm-flags.env | ||
| # This is a file that the user can use for overrides of the kubelet args as a last resort. Preferably, the user should use | ||
| # the .NodeRegistration.KubeletExtraArgs object in the configuration files instead. KUBELET_EXTRA_ARGS should be sourced from this file. | ||
| EnvironmentFile=-/etc/default/kubelet | ||
| ExecStart= | ||
| ExecStart=/usr/bin/kubelet $KUBELET_KUBECONFIG_ARGS $KUBELET_CONFIG_ARGS $KUBELET_KUBEADM_ARGS $KUBELET_EXTRA_ARGS |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change | ||||||
|---|---|---|---|---|---|---|---|---|
| @@ -0,0 +1,292 @@ | ||||||||
| #!/usr/bin/env bash | ||||||||
|
|
||||||||
| # Licensed to the Apache Software Foundation (ASF) under one | ||||||||
| # or more contributor license agreements. See the NOTICE file | ||||||||
| # distributed with this work for additional information | ||||||||
| # regarding copyright ownership. The ASF licenses this file | ||||||||
| # to you under the Apache License, Version 2.0 (the | ||||||||
| # "License"); you may not use this file except in compliance | ||||||||
| # with the License. You may obtain a copy of the License at | ||||||||
| # | ||||||||
| # http://www.apache.org/licenses/LICENSE-2.0 | ||||||||
| # | ||||||||
| # Unless required by applicable law or agreed to in writing, | ||||||||
| # software distributed under the License is distributed on an | ||||||||
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||||||||
| # KIND, either express or implied. See the License for the | ||||||||
| # specific language governing permissions and limitations | ||||||||
| # under the License. | ||||||||
|
|
||||||||
| set -o errexit | ||||||||
| set -o nounset | ||||||||
| set -o pipefail | ||||||||
|
|
||||||||
| if [[ "${TRACE-0}" == "1" ]]; then | ||||||||
| set -o xtrace | ||||||||
| fi | ||||||||
|
|
||||||||
| if [ $# -lt 8 ]; then | ||||||||
| echo "============================================================================================================" | ||||||||
| echo "CloudStack Kubernetes Service (CKS) - ISO Creation Script with Cilium" | ||||||||
| echo "============================================================================================================" | ||||||||
| echo "" | ||||||||
| echo "This script creates an ISO image containing Kubernetes binaries and dependencies for CKS with Cilium CNI." | ||||||||
| echo "" | ||||||||
| echo "Usage:" | ||||||||
| echo " ./create-kubernetes-binaries-iso-with-cilium.sh OUTPUT_PATH KUBERNETES_VERSION CNI_VERSION CRICTL_VERSION BUILD_NAME ARCH ETCD_VERSION CILIUM_VERSION" | ||||||||
| echo "" | ||||||||
| echo "Parameters:" | ||||||||
| echo " OUTPUT_PATH - Directory where the ISO file will be saved (e.g., ./ or /tmp/)" | ||||||||
| echo " KUBERNETES_VERSION - Kubernetes version without 'v' prefix (e.g., 1.35.0)" | ||||||||
| echo " CNI_VERSION - CNI Plugins version without 'v' prefix (e.g., 1.9.0)" | ||||||||
| echo " CRICTL_VERSION - CRI Tools version without 'v' prefix (e.g., 1.35.0)" | ||||||||
| echo " BUILD_NAME - Name for the output ISO file without extension (e.g., cks-v1.35.0)" | ||||||||
| echo " ARCH - Target architecture: amd64, x86_64, arm64, or aarch64" | ||||||||
| echo " ETCD_VERSION - etcd version without 'v' prefix (e.g., 3.6.7)" | ||||||||
| echo " CILIUM_VERSION - Cilium version without 'v' prefix (e.g., 1.19.0)" | ||||||||
| echo "" | ||||||||
| echo "Example:" | ||||||||
| echo " ./create-kubernetes-binaries-iso-with-cilium.sh ./ 1.35.0 1.9.0 1.35.0 cks-v1.35.0 amd64 3.6.7 1.19.0" | ||||||||
| echo "" | ||||||||
| echo "Output:" | ||||||||
| echo " The script will generate: cks-v1.35.0-x86_64.iso (or cks-v1.35.0-aarch64.iso for ARM)" | ||||||||
| echo "============================================================================================================" | ||||||||
| exit 1 | ||||||||
| fi | ||||||||
|
|
||||||||
| ARCH="amd64" | ||||||||
| ARCH_SUFFIX="x86_64" | ||||||||
| if [ "${6}" = "x86_64" ] || [ "${6}" = "amd64" ]; then | ||||||||
| ARCH="amd64" | ||||||||
| ARCH_SUFFIX="x86_64" | ||||||||
| elif [ "${6}" = "aarch64" ] || [ "${6}" = "arm64" ]; then | ||||||||
| ARCH="arm64" | ||||||||
| ARCH_SUFFIX="aarch64" | ||||||||
| else | ||||||||
| echo "ERROR: ARCH must be one of: x86_64, amd64, aarch64, or arm64." | ||||||||
| exit 1 | ||||||||
| fi | ||||||||
|
|
||||||||
| RELEASE="v${2}" | ||||||||
| MIN_UPSTREAM_VERSION="1.18.0" | ||||||||
| SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" | ||||||||
|
|
||||||||
| # version_lt returns 0 (true) if $1 < $2 using semver-aware comparison | ||||||||
| version_lt() { | ||||||||
| [ "$(printf '%s\n%s' "$1" "$2" | sort -V | head -n1)" = "$1" ] && [ "$1" != "$2" ] | ||||||||
| } | ||||||||
|
|
||||||||
| output_dir="${1}" | ||||||||
| start_dir="$PWD" | ||||||||
| iso_dir=$(mktemp -d) | ||||||||
| trap 'rm -rf "${iso_dir}"' EXIT | ||||||||
| working_dir="${iso_dir}/" | ||||||||
| if [ -n "${5}" ]; then | ||||||||
| build_name="${5}-${ARCH_SUFFIX}.iso" | ||||||||
| else | ||||||||
| build_name="setup-${RELEASE}-${ARCH_SUFFIX}.iso" | ||||||||
| fi | ||||||||
|
|
||||||||
| CNI_VERSION="v${3}" | ||||||||
| echo "Downloading CNI ${CNI_VERSION}..." | ||||||||
| cni_dir="${working_dir}/cni/" | ||||||||
| mkdir -p "${cni_dir}" | ||||||||
| if ! curl -sSf -L "https://github.com/containernetworking/plugins/releases/download/${CNI_VERSION}/cni-plugins-linux-${ARCH}-${CNI_VERSION}.tgz" -o "${cni_dir}/cni-plugins-${ARCH}.tgz" 2>/dev/null; then | ||||||||
| echo "Primary CNI URL failed, trying legacy URL format..." | ||||||||
| if ! curl -sSf -L "https://github.com/containernetworking/plugins/releases/download/${CNI_VERSION}/cni-plugins-${ARCH}-${CNI_VERSION}.tgz" -o "${cni_dir}/cni-plugins-${ARCH}.tgz"; then | ||||||||
| echo "ERROR: Failed to download CNI plugins ${CNI_VERSION} for ${ARCH} from both URL formats." | ||||||||
| exit 1 | ||||||||
| fi | ||||||||
| fi | ||||||||
|
|
||||||||
| CRICTL_VERSION="v${4}" | ||||||||
| echo "Downloading CRI tools ${CRICTL_VERSION}..." | ||||||||
| crictl_dir="${working_dir}/cri-tools/" | ||||||||
| mkdir -p "${crictl_dir}" | ||||||||
| curl -sS -L "https://github.com/kubernetes-incubator/cri-tools/releases/download/${CRICTL_VERSION}/crictl-${CRICTL_VERSION}-linux-${ARCH}.tar.gz" -o "${crictl_dir}/crictl-linux-${ARCH}.tar.gz" | ||||||||
|
|
||||||||
| echo "Downloading Kubernetes tools ${RELEASE}..." | ||||||||
| k8s_dir="${working_dir}/k8s" | ||||||||
| mkdir -p "${k8s_dir}" | ||||||||
| cd "${k8s_dir}" | ||||||||
| for binary in kubeadm kubelet kubectl; do | ||||||||
| echo " Downloading ${binary}..." | ||||||||
| curl --progress-bar -fL "https://dl.k8s.io/release/${RELEASE}/bin/linux/${ARCH}/${binary}" -o "${binary}" | ||||||||
| done | ||||||||
| kubeadm_file_permissions=$(stat --format '%a' kubeadm) | ||||||||
| chmod +x kubeadm | ||||||||
|
|
||||||||
| echo "Downloading kubelet.service ${RELEASE}..." | ||||||||
| cd "${start_dir}" | ||||||||
| kubelet_service_file="${working_dir}/kubelet.service" | ||||||||
| touch "${kubelet_service_file}" | ||||||||
| if version_lt "${2}" "${MIN_UPSTREAM_VERSION}"; then | ||||||||
| curl -sSfL "https://raw.githubusercontent.com/kubernetes/kubernetes/${RELEASE}/build/debs/kubelet.service" | sed "s:/usr/bin:/opt/bin:g" > "${kubelet_service_file}" | ||||||||
| else | ||||||||
| sed "s:/usr/bin:/opt/bin:g" "${SCRIPT_DIR}/kubelet.service" > "${kubelet_service_file}" | ||||||||
| fi | ||||||||
|
|
||||||||
| echo "Downloading 10-kubeadm.conf ${RELEASE}..." | ||||||||
| kubeadm_conf_file="${working_dir}/10-kubeadm.conf" | ||||||||
| touch "${kubeadm_conf_file}" | ||||||||
| if version_lt "${2}" "${MIN_UPSTREAM_VERSION}"; then | ||||||||
| curl -sSfL "https://raw.githubusercontent.com/kubernetes/kubernetes/${RELEASE}/build/debs/10-kubeadm.conf" | sed "s:/usr/bin:/opt/bin:g" > "${kubeadm_conf_file}" | ||||||||
| else | ||||||||
| sed "s:/usr/bin:/opt/bin:g" "${SCRIPT_DIR}/10-kubeadm.conf" > "${kubeadm_conf_file}" | ||||||||
| fi | ||||||||
|
|
||||||||
| AUTOSCALER_URL="https://raw.githubusercontent.com/kubernetes/autoscaler/master/cluster-autoscaler/cloudprovider/cloudstack/examples/cluster-autoscaler-standard.yaml" | ||||||||
| echo "Downloading kubernetes cluster autoscaler ${AUTOSCALER_URL}" | ||||||||
| autoscaler_conf_file="${working_dir}/autoscaler.yaml" | ||||||||
| curl -sSL "${AUTOSCALER_URL}" -o "${autoscaler_conf_file}" | ||||||||
|
|
||||||||
| PROVIDER_URL="https://raw.githubusercontent.com/apache/cloudstack-kubernetes-provider/main/deployment.yaml" | ||||||||
| echo "Downloading kubernetes cluster provider ${PROVIDER_URL}" | ||||||||
| provider_conf_file="${working_dir}/provider.yaml" | ||||||||
| curl -sSL "${PROVIDER_URL}" -o "${provider_conf_file}" | ||||||||
|
|
||||||||
| CILIUM_VERSION="${8}" | ||||||||
| echo "Generating Cilium ${CILIUM_VERSION} manifest..." | ||||||||
| network_conf_file="${working_dir}/network.yaml" | ||||||||
|
|
||||||||
| # Check if helm is installed | ||||||||
| if ! command -v helm > /dev/null 2>&1; then | ||||||||
| echo "ERROR: Helm is required to generate Cilium manifests. Please install Helm first." | ||||||||
| echo "Visit: https://helm.sh/docs/intro/install/" | ||||||||
| exit 1 | ||||||||
| fi | ||||||||
|
|
||||||||
| # Add the Cilium Helm repository only if it is not already configured | ||||||||
| if ! helm repo list 2>/dev/null | awk 'NR>1 {print $1}' | grep -qx "cilium"; then | ||||||||
| helm repo add cilium https://helm.cilium.io/ > /dev/null 2>&1 | ||||||||
| fi | ||||||||
|
|
||||||||
| echo "Updating Helm repositories..." | ||||||||
| helm repo update | ||||||||
| echo "Generating Cilium manifest with Helm..." | ||||||||
| if ! helm template cilium cilium/cilium --version "${CILIUM_VERSION}" \ | ||||||||
| --kube-version "${RELEASE}" \ | ||||||||
| --namespace kube-system \ | ||||||||
| --set kubeProxyReplacement=true \ | ||||||||
| --set socketLB.hostNamespaceOnly=true \ | ||||||||
| --set cni.exclusive=true \ | ||||||||
| --set cni.chainingMode=portmap \ | ||||||||
| --set bgpControlPlane.enabled=true \ | ||||||||
| --set encryption.enabled=true \ | ||||||||
| --set encryption.type=wireguard \ | ||||||||
| --set encryption.nodeEncryption=true \ | ||||||||
| --set gatewayAPI.enabled=false \ | ||||||||
| --set ingressController.enabled=false \ | ||||||||
| --set l2announcements.enabled=true \ | ||||||||
| --set l2podAnnouncements.enabled=true \ | ||||||||
| --set l2podAnnouncements.interfacePattern=eth.* \ | ||||||||
| --set ipam.mode=cluster-pool \ | ||||||||
| --set ipam.operator.clusterPoolIPv4PodCIDRList={10.168.0.0/16} \ | ||||||||
| --set ipam.operator.clusterPoolIPv4MaskSize=24 \ | ||||||||
| --set hubble.relay.enabled=false \ | ||||||||
| --set hubble.ui.enabled=false > "${network_conf_file}"; then | ||||||||
| echo "ERROR: Failed to generate Cilium manifest with Helm" | ||||||||
| echo "Check if Cilium version ${CILIUM_VERSION} exists in the Helm repository" | ||||||||
| exit 1 | ||||||||
| fi | ||||||||
| echo "Cilium manifest generated successfully" | ||||||||
|
|
||||||||
| DASHBOARD_VERSION="2.7.0" | ||||||||
| echo "Downloading Kubernetes Dashboard v${DASHBOARD_VERSION}..." | ||||||||
| dashboard_conf_file="${working_dir}/dashboard.yaml" | ||||||||
| curl -sSL "https://raw.githubusercontent.com/kubernetes/dashboard/v${DASHBOARD_VERSION}/aio/deploy/recommended.yaml" -o "${dashboard_conf_file}" | ||||||||
|
|
||||||||
| csi_conf_file="${working_dir}/manifest.yaml" | ||||||||
| echo "Including CloudStack CSI Driver manifest" | ||||||||
| wget https://github.com/cloudstack/cloudstack-csi-driver/releases/download/v3.0.0/snapshot-crds.yaml -O "${working_dir}/snapshot-crds.yaml" | ||||||||
| wget https://github.com/cloudstack/cloudstack-csi-driver/releases/download/v3.0.0/manifest.yaml -O "${csi_conf_file}" | ||||||||
|
|
||||||||
| echo "Fetching k8s docker images..." | ||||||||
| if ! ctr -v > /dev/null 2>&1; then | ||||||||
| echo "Installing containerd..." | ||||||||
| if [ -f /etc/redhat-release ]; then | ||||||||
| if command -v dnf > /dev/null 2>&1; then | ||||||||
| PKG_MGR="dnf" | ||||||||
| else | ||||||||
| PKG_MGR="yum" | ||||||||
| fi | ||||||||
| sudo $PKG_MGR --assumeyes remove docker-common docker container-selinux docker-selinux docker-engine | ||||||||
| sudo $PKG_MGR --assumeyes install lvm2 device-mapper device-mapper-persistent-data device-mapper-event device-mapper-libs device-mapper-event-libs container-selinux containerd.io | ||||||||
| elif [ -f /etc/debian_version ] || command -v apt-get > /dev/null 2>&1; then | ||||||||
| sudo apt-get update && sudo apt-get install containerd.io --yes | ||||||||
| fi | ||||||||
| sudo systemctl enable --now containerd | ||||||||
| fi | ||||||||
| mkdir -p "${working_dir}/docker" | ||||||||
| output=$("${k8s_dir}/kubeadm" config images list --kubernetes-version="${RELEASE}") | ||||||||
|
|
||||||||
| # Don't forget about the other image ! | ||||||||
| autoscaler_image=$(grep "image:" "${autoscaler_conf_file}" | cut -d ':' -f2- | tr -d ' ') | ||||||||
| output=$(printf "%s\n" "${output}" "${autoscaler_image}") | ||||||||
|
|
||||||||
| provider_image=$(grep "image:" "${provider_conf_file}" | cut -d ':' -f2- | tr -d ' ') | ||||||||
| output=$(printf "%s\n" "${output}" "${provider_image}") | ||||||||
|
|
||||||||
| # Extract images from manifest.yaml and add to output | ||||||||
| csi_images=$(grep "image:" "${csi_conf_file}" | cut -d ':' -f2- | tr -d ' ' | tr -d "'") | ||||||||
| output=$(printf "%s\n%s" "${output}" "${csi_images}") | ||||||||
|
|
||||||||
| # Extract all images from yaml manifests (including Cilium network.yaml and Dashboard) | ||||||||
| echo "Extracting images from manifest files..." | ||||||||
| for i in "${network_conf_file}" "${dashboard_conf_file}"; do | ||||||||
| images=$(grep "image:" "$i" | cut -d ':' -f2- | tr -d ' ' | tr -d "'" | tr -d '"') | ||||||||
| output=$(printf "%s\n" "${output}" "${images}") | ||||||||
| done | ||||||||
|
|
||||||||
| while read -r line; do | ||||||||
| echo "Downloading image $line ---" | ||||||||
| if [[ $line == kubernetesui* ]] || [[ $line == apache* ]] || [[ $line == weaveworks* ]]; then | ||||||||
| line="docker.io/${line}" | ||||||||
| fi | ||||||||
| if [[ $line == kong* ]]; then | ||||||||
| line="docker.io/library/${line}" | ||||||||
| fi | ||||||||
| line=$(echo "$line" | tr -d '"' | tr -d "'") | ||||||||
|
|
||||||||
| # Pull image using containerd with k8s.io namespace | ||||||||
| if ! sudo ctr -n k8s.io images pull "$line"; then | ||||||||
| echo "ERROR: Failed to pull image $line" | ||||||||
| echo "Trying with default namespace..." | ||||||||
| if ! sudo ctr images pull "$line"; then | ||||||||
| echo "ERROR: Failed to pull image $line with both namespaces. Skipping..." | ||||||||
| continue | ||||||||
| fi | ||||||||
| # If successful with default namespace, use it for export | ||||||||
| image_name=$(echo "$line" | grep -oE "[^/]+$") | ||||||||
| sudo ctr images export "${working_dir}/docker/$image_name.tar" "$line" | ||||||||
| sudo ctr images rm "$line" | ||||||||
| else | ||||||||
| # If successful with k8s.io namespace | ||||||||
| image_name=$(echo "$line" | grep -oE "[^/]+$") | ||||||||
| sudo ctr -n k8s.io images export "${working_dir}/docker/$image_name.tar" "$line" | ||||||||
| sudo ctr -n k8s.io images rm "$line" | ||||||||
| fi | ||||||||
| done <<< "$output" | ||||||||
|
|
||||||||
| echo "Restore kubeadm permissions..." | ||||||||
| if [ -z "${kubeadm_file_permissions}" ]; then | ||||||||
| kubeadm_file_permissions=644 | ||||||||
| fi | ||||||||
| chmod "${kubeadm_file_permissions}" "${working_dir}/k8s/kubeadm" | ||||||||
|
|
||||||||
| echo "Updating imagePullPolicy to IfNotPresent in yaml files..." | ||||||||
| sed -i "s/imagePullPolicy:.*/imagePullPolicy: IfNotPresent/g" "${working_dir}"/*.yaml | ||||||||
|
|
||||||||
| etcd_dir="${working_dir}/etcd" | ||||||||
| mkdir -p "${etcd_dir}" | ||||||||
| ETCD_VERSION=v${7} | ||||||||
| echo "Downloading etcd ${ETCD_VERSION}..." | ||||||||
| curl -sSfL "https://github.com/etcd-io/etcd/releases/download/${ETCD_VERSION}/etcd-${ETCD_VERSION}-linux-${ARCH}.tar.gz" -o "${etcd_dir}/etcd-linux-${ARCH}.tar.gz" | ||||||||
|
|
||||||||
| # Validate that the downloaded etcd archive is a valid tar.gz | ||||||||
| if ! tar -tzf "${etcd_dir}/etcd-linux-${ARCH}.tar.gz" > /dev/null; then | ||||||||
| echo "ERROR: Downloaded etcd archive is invalid or corrupted." | ||||||||
| exit 1 | ||||||||
| fi | ||||||||
|
|
||||||||
| mkisofs -o "${output_dir}/${build_name}" -J -R -l "${iso_dir}" | ||||||||
|
Contributor
There was a problem hiding this comment.
Suggested change
|
||||||||
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| [Unit] | ||
| Description=kubelet: The Kubernetes Node Agent | ||
| Documentation=http://kubernetes.io/docs/ | ||
|
|
||
| [Service] | ||
| ExecStart=/usr/bin/kubelet | ||
| Restart=always | ||
| StartLimitInterval=0 | ||
| RestartSec=10 | ||
|
|
||
| [Install] | ||
| WantedBy=multi-user.target |
Oops, something went wrong.
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
RedHat install path downloads a container-selinux RPM from a CentOS 7 x86_64 URL. This will fail (and possibly install an incompatible package) on aarch64/arm64, even though the script advertises arm support. Consider selecting the correct arch/repo or using distro-provided packages/repos instead of a hard-coded x86_64 RPM URL.