123 lines
6.8 KiB
Bash
Executable File
123 lines
6.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright 2024 The Karmada Authors.
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#
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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 -o errexit
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set -o nounset
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# This script deploy karmada instance to any cluster you want via karmada-operator.
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# This script depends on utils in: ${REPO_ROOT}/hack/util.sh
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REPO_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
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source ${REPO_ROOT}/hack/util.sh
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KARMADA_INSTANCE_NAME=${KARMADA_INSTANCE_NAME:-"karmada-demo"}
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KARMADA_INSTANCE_NAMESPACE=${KARMADA_INSTANCE_NAMESPACE:-"test"}
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CERT_DIR=${CERT_DIR:-"${HOME}/.karmada"}
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mkdir -p "${CERT_DIR}" &>/dev/null || mkdir -p "${CERT_DIR}"
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rm -f "${CERT_DIR}/*" &>/dev/null || rm -f "${CERT_DIR}/*"
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function usage() {
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echo "This script deploys karmada instance to a given cluster via karmada-operator."
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echo "Note: This script is an internal script and is not intended used by end-users."
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echo "Usage: hack/deploy-karmada-by-operator.sh <KUBECONFIG> <CONTEXT_NAME> <KARMADA_CONTEXT_NAME> <KARMADA_IMAGE_TAG> <ADDON_NEEDED> <CRD_DOWNLOAD_URL>"
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echo "Example: hack/deploy-karmada-by-operator.sh ~/.kube/members.config member1 karmada-apiserver v1.11.0 true https://github.com/karmada-io/karmada/releases/download/v1.11.0/crds.tar.gz"
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echo -e "Parameters:\n\tKUBECONFIG\t\tYour cluster's kubeconfig that you want to install to"
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echo -e "\tCONTEXT_NAME\t\tThe name of context in 'kubeconfig'"
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echo -e "\tKARMADA_CONTEXT_NAME\t\tThe context name of karmada instance, and different Karmada instances must have unique contexts to avoid being overwritten.'"
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echo -e "\tKARMADA_IMAGE_TAG\t\tThe tag of image'"
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echo -e "\tADDON_NEEDED\t\tWhether you need to install addons(KarmadaSearch&karmadaDescheduler), optional, defaults to false."
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echo -e "\tCRD_DOWNLOAD_URL\t\tThe download url for CRDs, optional.'"
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}
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if [[ $# -le 4 ]]; then
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usage
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exit 1
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fi
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# check config file existence
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HOST_CLUSTER_KUBECONFIG=$1
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if [[ ! -f "${HOST_CLUSTER_KUBECONFIG}" ]]; then
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echo -e "ERROR: failed to get kubernetes config file: '${HOST_CLUSTER_KUBECONFIG}', not existed.\n"
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usage
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exit 1
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fi
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# check context existence
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CONTEXT_NAME=$2
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if ! kubectl --kubeconfig="${HOST_CLUSTER_KUBECONFIG}" config get-contexts "${CONTEXT_NAME}" > /dev/null 2>&1;
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then
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echo -e "ERROR: failed to get context: '${CONTEXT_NAME}' not in ${HOST_CLUSTER_KUBECONFIG}. \n"
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usage
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exit 1
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fi
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# check for duplicate karmada context name.
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KARMADA_CONTEXT_NAME=$3
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if kubectl --kubeconfig="${HOST_CLUSTER_KUBECONFIG}" config get-contexts "${KARMADA_CONTEXT_NAME}" > /dev/null 2>&1;
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then
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echo -e "ERROR: context: '${KARMADA_CONTEXT_NAME}' already exists in ${HOST_CLUSTER_KUBECONFIG}. \n"
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usage
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exit 1
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fi
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TEMP_PATH_BOOTSTRAP=$(mktemp -d)
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trap '{ rm -rf ${TEMP_PATH_BOOTSTRAP}; }' EXIT
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cp -rf "${REPO_ROOT}"/operator/config/samples/karmada-sample.yaml "${TEMP_PATH_BOOTSTRAP}"/karmada-sample-tmp.yaml
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if kubectl --kubeconfig="${HOST_CLUSTER_KUBECONFIG}" --context="${CONTEXT_NAME}" get namespace ${KARMADA_INSTANCE_NAMESPACE} > /dev/null 2>&1; then
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echo "Namespace '${KARMADA_INSTANCE_NAMESPACE}' already exists."
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else
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echo "Namespace '${KARMADA_INSTANCE_NAMESPACE}' does not exist. Creating now..."
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kubectl --kubeconfig="${HOST_CLUSTER_KUBECONFIG}" --context="${CONTEXT_NAME}" create ns ${KARMADA_INSTANCE_NAMESPACE}
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fi
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# modify `karmada-sample.yaml` based on custom configuration.
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ADDON_NEEDED=${5:-false}
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# if choosing install addons, append karmadaSearch and karmadaDescheduler to 'karmada-sample.yaml'
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if [ ${ADDON_NEEDED} ]; then
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echo -e ' karmadaDescheduler:\n imageRepository: docker.io/karmada/karmada-descheduler\n imageTag: {{image_tag}}\n replicas: 1' >> "${TEMP_PATH_BOOTSTRAP}"/karmada-sample-tmp.yaml
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echo -e ' karmadaSearch:\n imageRepository: docker.io/karmada/karmada-search\n imageTag: {{image_tag}}\n replicas: 1' >> "${TEMP_PATH_BOOTSTRAP}"/karmada-sample-tmp.yaml
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fi
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IMAGE_TAG=$4
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sed -i'' -e "s/{{image_tag}}/${IMAGE_TAG}/g" "${TEMP_PATH_BOOTSTRAP}"/karmada-sample-tmp.yaml
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sed -i'' -e "s/{{karmada_instance_name}}/${KARMADA_INSTANCE_NAME}/g" "${TEMP_PATH_BOOTSTRAP}"/karmada-sample-tmp.yaml
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sed -i'' -e "s/{{karmada_instance_namespace}}/${KARMADA_INSTANCE_NAMESPACE}/g" "${TEMP_PATH_BOOTSTRAP}"/karmada-sample-tmp.yaml
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CRD_DOWNLOAD_URL=${6:-""}
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if [[ -z ${CRD_DOWNLOAD_URL} ]]; then
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sed -i'' -e "s/{{crd_tarball}}/""/g" "${TEMP_PATH_BOOTSTRAP}"/karmada-sample-tmp.yaml
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else
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CRD_TAR_BALL="\n httpSource:\n url: ${CRD_DOWNLOAD_URL}"
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awk -v pattern="{{crd_tarball}}" -v replacement="${CRD_TAR_BALL}" '{ gsub(pattern, replacement); print }' "${TEMP_PATH_BOOTSTRAP}"/karmada-sample-tmp.yaml > "${TEMP_PATH_BOOTSTRAP}"/temp && mv "${TEMP_PATH_BOOTSTRAP}"/temp "${TEMP_PATH_BOOTSTRAP}"/karmada-sample-tmp.yaml
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fi
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# create and wait for karmada instance to be ready
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kubectl --kubeconfig="${HOST_CLUSTER_KUBECONFIG}" --context="${CONTEXT_NAME}" apply -f "${TEMP_PATH_BOOTSTRAP}"/karmada-sample-tmp.yaml
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kubectl --kubeconfig="${HOST_CLUSTER_KUBECONFIG}" --context="${CONTEXT_NAME}" wait --for=condition=Ready --timeout=1000s karmada ${KARMADA_INSTANCE_NAME} -n ${KARMADA_INSTANCE_NAMESPACE}
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# generate kubeconfig for karmada instance
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kubectl --kubeconfig="${HOST_CLUSTER_KUBECONFIG}" --context="${CONTEXT_NAME}" get secret -n ${KARMADA_INSTANCE_NAMESPACE} ${KARMADA_INSTANCE_NAME}-admin-config -o jsonpath={.data.kubeconfig} | base64 -d > ~/.kube/${KARMADA_INSTANCE_NAME}-${KARMADA_INSTANCE_NAMESPACE}-tmp-apiserver.config
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cat ~/.kube/${KARMADA_INSTANCE_NAME}-${KARMADA_INSTANCE_NAMESPACE}-tmp-apiserver.config| grep "certificate-authority-data"| awk '{print $2}'| base64 -d > ${CERT_DIR}/ca.crt
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cat ~/.kube/${KARMADA_INSTANCE_NAME}-${KARMADA_INSTANCE_NAMESPACE}-tmp-apiserver.config| grep "client-certificate-data"| awk '{print $2}'| base64 -d > ${CERT_DIR}/karmada.crt
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cat ~/.kube/${KARMADA_INSTANCE_NAME}-${KARMADA_INSTANCE_NAMESPACE}-tmp-apiserver.config| grep "client-key-data"| awk '{print $2}'| base64 -d > ${CERT_DIR}/karmada.key
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KARMADA_APISERVER=$(cat ~/.kube/${KARMADA_INSTANCE_NAME}-${KARMADA_INSTANCE_NAMESPACE}-tmp-apiserver.config| grep "server:"| awk '{print $2}')
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# write karmada api server config to kubeconfig file
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util::append_client_kubeconfig "${HOST_CLUSTER_KUBECONFIG}" "${CERT_DIR}/ca.crt" "${CERT_DIR}/karmada.crt" "${CERT_DIR}/karmada.key" "${KARMADA_APISERVER}" ${KARMADA_CONTEXT_NAME}
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rm ~/.kube/${KARMADA_INSTANCE_NAME}-${KARMADA_INSTANCE_NAMESPACE}-tmp-apiserver.config
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