mirror of https://github.com/k3s-io/k3s
124 lines
4.8 KiB
Bash
Executable File
124 lines
4.8 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2014 The Kubernetes 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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set -o pipefail
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# This script is only used for e2e tests! Don't use it in production!
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# This is also a temporary bridge to slowly switch over everything to
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# federation/develop.sh. Carefully moving things step-by-step, ensuring
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# things don't break.
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# TODO(madhusudancs): Remove this script and its dependencies.
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KUBE_ROOT=$(dirname "${BASH_SOURCE}")/../..
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# For `kube::log::status` function since it already sources
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# "${KUBE_ROOT}/cluster/lib/logging.sh" and DEFAULT_KUBECONFIG
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source "${KUBE_ROOT}/cluster/common.sh"
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# For $FEDERATION_NAME, $FEDERATION_NAMESPACE, $FEDERATION_KUBE_CONTEXT,
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# $HOST_CLUSTER_CONTEXT, $KUBEDNS_CONFIGMAP_NAME,
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# $KUBEDNS_CONFIGMAP_NAMESPACE and $KUBEDNS_FEDERATION_FLAG.
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source "${KUBE_ROOT}/federation/cluster/common.sh"
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DNS_ZONE_NAME="${FEDERATION_DNS_ZONE_NAME:-}"
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DNS_PROVIDER="${FEDERATION_DNS_PROVIDER:-google-clouddns}"
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# get_version returns the version in KUBERNETES_RELEASE or defaults to the
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# value in the federation `versions` file.
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# TODO(madhusudancs): This is a duplicate of the function in
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# federation/develop/develop.sh with a minor difference. This
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# function tries to default to the version information in
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# _output/federation/versions file where as the one in develop.sh
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# tries to default to the version in the kubernetes versions file.
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# These functions should be consolidated to read the version from
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# kubernetes version defs file.
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function get_version() {
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local -r versions_file="${KUBE_ROOT}/_output/federation/versions"
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if [[ -n "${KUBERNETES_RELEASE:-}" ]]; then
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echo "${KUBERNETES_RELEASE//+/_}"
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return
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fi
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if [[ ! -f "${versions_file}" ]]; then
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echo "Couldn't determine the release version: neither the " \
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"KUBERNETES_RELEASE environment variable is set, nor does " \
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"the versions file exist at ${versions_file}"
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exit 1
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fi
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# Read the version back from the versions file if no version is given.
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local -r kube_version="$(cat "${versions_file}" | python -c '\
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import json, sys;\
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print json.load(sys.stdin)["KUBE_VERSION"]')"
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echo "${kube_version//+/_}"
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}
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# Initializes the control plane.
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# TODO(madhusudancs): Move this to federation/develop.sh.
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function init() {
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kube::log::status "Deploying federation control plane for ${FEDERATION_NAME} in cluster ${HOST_CLUSTER_CONTEXT}"
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local -r project="${KUBE_PROJECT:-${PROJECT:-}}"
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local -r kube_registry="${KUBE_REGISTRY:-gcr.io/${project}}"
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local -r kube_version="$(get_version)"
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kube::log::status "DNS_ZONE_NAME: \"${DNS_ZONE_NAME}\", DNS_PROVIDER: \"${DNS_PROVIDER}\""
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kube::log::status "Image: \"${kube_registry}/hyperkube-amd64:${kube_version}\""
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# Send INT after 20m and KILL 1m after that if process is still alive.
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timeout --signal=INT --kill-after=1m 20m \
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"${KUBE_ROOT}/federation/develop/kubefed.sh" init \
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"${FEDERATION_NAME}" \
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--federation-system-namespace=${FEDERATION_NAMESPACE} \
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--host-cluster-context="${HOST_CLUSTER_CONTEXT}" \
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--dns-zone-name="${DNS_ZONE_NAME}" \
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--dns-provider="${DNS_PROVIDER}" \
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--image="${kube_registry}/hyperkube-amd64:${kube_version}" \
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--apiserver-arg-overrides="--storage-backend=etcd2" \
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--apiserver-enable-basic-auth=true \
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--apiserver-enable-token-auth=true \
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--apiserver-arg-overrides="--v=4" \
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--controllermanager-arg-overrides="--v=4"
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}
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# join_clusters joins the clusters in the local kubeconfig to federation. The clusters
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# and their kubeconfig entries in the local kubeconfig are created while deploying clusters, i.e. when kube-up is run.
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function join_clusters() {
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for context in $(federation_cluster_contexts); do
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kube::log::status "Joining cluster with name '${context}' to federation with name '${FEDERATION_NAME}'"
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"${KUBE_ROOT}/federation/develop/kubefed.sh" join \
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"${context}" \
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--federation-system-namespace=${FEDERATION_NAMESPACE} \
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--host-cluster-context="${HOST_CLUSTER_CONTEXT}" \
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--context="${FEDERATION_KUBE_CONTEXT}" \
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--secret-name="${context//_/-}" # Replace "_" by "-"
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done
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}
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USE_KUBEFED="${USE_KUBEFED:-}"
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if [[ "${USE_KUBEFED}" == "true" ]]; then
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init
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join_clusters
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else
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export FEDERATION_IMAGE_TAG="$(get_version)"
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create-federation-api-objects
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fi
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