mirror of
https://github.com/ysoftdevs/gardener-extension-shoot-fleet-agent.git
synced 2026-01-18 09:37:48 +01:00
117 lines
3.7 KiB
Bash
Executable File
117 lines
3.7 KiB
Bash
Executable File
#!/bin/bash
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#
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# Copyright (c) 2019 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
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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 -e
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set -o pipefail
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function usage {
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cat <<EOM
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Usage:
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generate-controller-registration <name> <chart-dir> <dest> <kind-and-type> [kinds-and-types ...]
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<name> Name of the controller registration to generate.
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<chart-dir> Location of the chart directory.
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<version-file> Location of the VERSION file.
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<dest> The destination file to write the registration YAML to.
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<kind-and-type> A tuple of kind and type of the controller registration to generate.
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Separated by ':'.
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Example: OperatingSystemConfig:foobar
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<kinds-and-types> Further tuples of kind and type of the controller registration to generate.
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Separated by ':'.
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EOM
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exit 0
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}
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if [ "$1" == "--optional" ]; then
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shift
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GLOBALLY_ENABLED='false'
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else
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GLOBALLY_ENABLED='true'
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fi
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NAME="$1"
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CHART_DIR="$2"
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VERSION_FILE="$3"
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DEST="$4"
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KIND_AND_TYPE="$5"
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VERSION="$(cat "$VERSION_FILE")"
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( [[ -z "$NAME" ]] || [[ -z "$CHART_DIR" ]] || [[ -z "$DEST" ]] || [[ -z "$KIND_AND_TYPE" ]]) && usage
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KINDS_AND_TYPES=("$KIND_AND_TYPE" "${@:6}")
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# The following code is to make `helm package` idempotent: Usually, everytime `helm package` is invoked,
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# it produces a different `.tgz` due to modification timestamps and some special shasums of gzip. We
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# resolve this by unarchiving the `.tgz`, compressing it again with a constant `mtime` and no gzip
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# checksums.
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temp_dir="$(mktemp -d)"
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temp_helm_home="$(mktemp -d)"
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temp_extract_dir="$(mktemp -d)"
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function cleanup {
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rm -rf "$temp_dir"
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rm -rf "$temp_helm_home"
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rm -rf "$temp_extract_dir"
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}
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trap cleanup EXIT ERR INT TERM
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export HELM_HOME="$temp_helm_home"
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[ "$(helm version --client --template "{{.Version}}" | head -c2 | tail -c1)" = "3" ] || helm init --client-only > /dev/null 2>&1
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helm package "$CHART_DIR" --app-version "$VERSION" --destination "$temp_dir" > /dev/null
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tar -xzm -C "$temp_extract_dir" -f "$temp_dir"/*
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chart="$(tar --sort=name -c --owner=root:0 --group=root:0 --mtime='UTC 2019-01-01' -C "$temp_extract_dir" "$(basename "$temp_extract_dir"/*)" | gzip -n | base64 | tr -d '\n')"
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mkdir -p "$(dirname "$DEST")"
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cat <<EOM > "$DEST"
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---
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apiVersion: core.gardener.cloud/v1beta1
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kind: ControllerDeployment
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metadata:
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name: $NAME
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type: helm
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providerConfig:
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chart: $chart
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values:
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image:
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tag: $VERSION
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fleetManager:
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kubeconfig: #base64 encoded kubeconfig of Fleet manager cluster with user that has write access to Cluster and Secret
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namespace: clusters
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---
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apiVersion: core.gardener.cloud/v1beta1
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kind: ControllerRegistration
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metadata:
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name: $NAME
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spec:
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deployment:
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deploymentRefs:
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- name: $NAME
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resources:
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EOM
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for kind_and_type in "${KINDS_AND_TYPES[@]}"; do
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KIND="$(echo "$kind_and_type" | cut -d ':' -f 1)"
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TYPE="$(echo "$kind_and_type" | cut -d ':' -f 2)"
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cat <<EOM >> "$DEST"
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- kind: $KIND
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type: $TYPE
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globallyEnabled: $GLOBALLY_ENABLED
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EOM
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done
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echo "Successfully generated controller registration at $DEST"
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