132 lines
3.0 KiB
Bash
132 lines
3.0 KiB
Bash
#!/bin/bash
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#
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# Copyright Istio 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 -euo pipefail
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display_usage() {
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echo
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echo "USAGE: ./gen-helloworld.sh [--version] [--includeService value] [--includeDeployment value]"
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echo " -h|--help: Prints usage information"
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echo " --version: Specifies the version that will be returned by the helloworld service, default: 'v1'"
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echo " --includeService: If 'true' the service will be included in the YAML, default: 'true'"
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echo " --includeDeployment: If 'true' the deployment will be included in the YAML, default: 'true'"
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}
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INCLUDE_SERVICE=${INCLUDE_SERVICE:-"true"}
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INCLUDE_DEPLOYMENT=${INCLUDE_DEPLOYMENT:-"true"}
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SERVICE_VERSION=${SERVICE_VERSION:-"v1"}
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while (( "$#" )); do
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case "$1" in
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-h|--help)
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display_usage
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exit 0
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;;
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--version)
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SERVICE_VERSION=$2
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shift 2
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;;
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--includeService)
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INCLUDE_SERVICE=$2
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shift 2
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;;
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--includeDeployment)
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INCLUDE_DEPLOYMENT=$2
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shift 2
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;;
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*)
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echo "Error: Unsupported flag $1" >&2
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display_usage
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exit 1
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;;
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esac
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done
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SERVICE_YAML=$(cat <<EOF
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apiVersion: v1
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kind: Service
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metadata:
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name: helloworld
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labels:
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app: helloworld
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service: helloworld
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spec:
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ports:
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- port: 5000
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name: http
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selector:
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app: helloworld
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EOF
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)
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DEPLOYMENT_YAML=$(cat <<EOF
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: helloworld-${SERVICE_VERSION}
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labels:
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app: helloworld
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version: ${SERVICE_VERSION}
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: helloworld
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version: ${SERVICE_VERSION}
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template:
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metadata:
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labels:
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app: helloworld
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version: ${SERVICE_VERSION}
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spec:
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containers:
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- name: helloworld
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env:
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- name: SERVICE_VERSION
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value: ${SERVICE_VERSION}
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image: docker.io/istio/examples-helloworld-v1
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resources:
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requests:
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cpu: "100m"
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imagePullPolicy: IfNotPresent
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ports:
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- containerPort: 5000
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EOF
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)
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OUT=""
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# Add the service to the output.
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if [[ "$INCLUDE_SERVICE" == "true" ]]; then
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OUT="${SERVICE_YAML}"
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fi
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# Add the deployment to the output.
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if [[ "$INCLUDE_DEPLOYMENT" == "true" ]]; then
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# Add a separator
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if [[ -n "$OUT" ]]; then
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OUT+="
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---
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"
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fi
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OUT+="${DEPLOYMENT_YAML}"
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fi
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echo "$OUT"
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