98 lines
3.8 KiB
Bash
Executable File
98 lines
3.8 KiB
Bash
Executable File
#!/bin/bash
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set -o errexit
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set -o nounset
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REPO_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
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function usage() {
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echo "This script will deploy karmada agent to a cluster."
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echo "Usage: hack/deploy-karmada-agent.sh <KARMADA_APISERVER_KUBECONFIG> <KARMADA_APISERVER_CONTEXT_NAME> <MEMBER_CLUSTER_KUBECONFIG> <MEMBER_CLUSTER_CONTEXT_NAME>"
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echo "Example: hack/deploy-karmada-agent.sh ~/.kube/karmada.config karmada-apiserver ~/.kube/members.config member1"
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}
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if [[ $# -ne 4 ]]; then
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usage
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exit 1
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fi
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# check kube config file existence
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if [[ ! -f "${1}" ]]; then
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echo -e "ERROR: failed to get kubernetes config file: '${1}', not existed.\n"
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usage
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exit 1
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fi
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KARMADA_APISERVER_KUBECONFIG=$1
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# check context existence
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if ! kubectl config get-contexts "${2}" --kubeconfig="${KARMADA_APISERVER_KUBECONFIG}" > /dev/null 2>&1;
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then
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echo -e "ERROR: failed to get context: '${2}' not in ${KARMADA_APISERVER_KUBECONFIG}. \n"
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usage
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exit 1
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fi
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KARMADA_APISERVER_CONTEXT_NAME=$2
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# check kube config file existence
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if [[ ! -f "${3}" ]]; then
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echo -e "ERROR: failed to get kubernetes config file: '${3}', not existed.\n"
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usage
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exit 1
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fi
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MEMBER_CLUSTER_KUBECONFIG=$3
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# check context existence
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if ! kubectl config get-contexts "${4}" --kubeconfig="${MEMBER_CLUSTER_KUBECONFIG}" > /dev/null 2>&1;
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then
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echo -e "ERROR: failed to get context: '${4}' not in ${MEMBER_CLUSTER_KUBECONFIG}. \n"
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usage
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exit 1
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fi
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MEMBER_CLUSTER_NAME=$4
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source "${REPO_ROOT}"/hack/util.sh
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# install agent to member cluster
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if [ -n "${KUBECONFIG+x}" ];then
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CURR_KUBECONFIG=$KUBECONFIG # backup current kubeconfig
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fi
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export KUBECONFIG="${MEMBER_CLUSTER_KUBECONFIG}" # switch to member cluster
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AGENT_IMAGE_PULL_POLICY=${IMAGE_PULL_POLICY:-IfNotPresent}
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# create namespace for karmada agent
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kubectl --context="${MEMBER_CLUSTER_NAME}" apply -f "${REPO_ROOT}/artifacts/agent/namespace.yaml"
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# create service account, cluster role for karmada agent
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kubectl --context="${MEMBER_CLUSTER_NAME}" apply -f "${REPO_ROOT}/artifacts/agent/serviceaccount.yaml"
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kubectl --context="${MEMBER_CLUSTER_NAME}" apply -f "${REPO_ROOT}/artifacts/agent/clusterrole.yaml"
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kubectl --context="${MEMBER_CLUSTER_NAME}" apply -f "${REPO_ROOT}/artifacts/agent/clusterrolebinding.yaml"
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# create secret
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kubectl --context="${MEMBER_CLUSTER_NAME}" create secret generic karmada-kubeconfig --from-file=karmada-kubeconfig="${KARMADA_APISERVER_KUBECONFIG}" -n "${KARMADA_SYSTEM_NAMESPACE}"
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# extract api endpoint of member cluster
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MEMBER_CLUSTER=$(kubectl config view -o jsonpath='{.contexts[?(@.name == "'${MEMBER_CLUSTER_NAME}'")].context.cluster}')
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MEMBER_CLUSTER_API_ENDPOINT=$(kubectl config view -o jsonpath='{.clusters[?(@.name == "'${MEMBER_CLUSTER}'")].cluster.server}')
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# deploy karmada agent
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TEMP_PATH=$(mktemp -d)
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trap '{ rm -rf ${TEMP_PATH}; }' EXIT
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cp "${REPO_ROOT}"/artifacts/agent/karmada-agent.yaml "${TEMP_PATH}"/karmada-agent.yaml
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sed -i'' -e "s/{{karmada_context}}/${KARMADA_APISERVER_CONTEXT_NAME}/g" "${TEMP_PATH}"/karmada-agent.yaml
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sed -i'' -e "s/{{member_cluster_name}}/${MEMBER_CLUSTER_NAME}/g" "${TEMP_PATH}"/karmada-agent.yaml
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sed -i'' -e "s/{{image_pull_policy}}/${AGENT_IMAGE_PULL_POLICY}/g" "${TEMP_PATH}"/karmada-agent.yaml
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sed -i'' -e "s|{{member_cluster_api_endpoint}}|${MEMBER_CLUSTER_API_ENDPOINT}|g" "${TEMP_PATH}"/karmada-agent.yaml
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echo -e "Apply dynamic rendered deployment in ${TEMP_PATH}/karmada-agent.yaml.\n"
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kubectl --context="${MEMBER_CLUSTER_NAME}" apply -f "${TEMP_PATH}"/karmada-agent.yaml
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# Wait for karmada-etcd to come up before launching the rest of the components.
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util::wait_pod_ready "${MEMBER_CLUSTER_NAME}" "${AGENT_POD_LABEL}" "${KARMADA_SYSTEM_NAMESPACE}"
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# recover the kubeconfig before installing agent if necessary
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if [ -n "${CURR_KUBECONFIG+x}" ];then
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export KUBECONFIG="${CURR_KUBECONFIG}"
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else
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unset KUBECONFIG
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fi
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