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‎.github/scripts/release.sh‎

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#!/bin/bash
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VER=$1
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if [[ -z "$VER" ]]; then
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echo "Error! Supply version tag!"
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exit 1
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fi
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read -r -d '' NOTES << EOM
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\`\`\`
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docker pull ghcr.io/benc-uk/python-demoapp:$VER
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\`\`\`
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\`\`\`
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docker run --rm -it -p 5000:5000 ghcr.io/benc-uk/python-demoapp:$VER
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\`\`\`
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EOM
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gh release create $VER --title "Release v$VER" -n "$NOTES"

‎.github/scripts/url-check.sh‎

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#!/bin/bash
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declare -i time=60
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declare -i delay=5
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declare -i count=5
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declare -i okCount=0
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declare -i elapsed=0
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declare isUp="false"
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# Display usage
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usage(){
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echo -e "\e[32m╭──────────────────────────────────────────────────────────────╮"
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echo -e "│ 🌍 \e[94murl-check.sh \e[96mCheck URL endpoint for HTTP responses 🚀\e[32m │"
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echo -e "╰──────────────────────────────────────────────────────────────╯"
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echo -e "\n\e[95mParameters:\e[37m"
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echo -e " -u, --url \e[33mURL to check (required)\e[37m"
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echo -e " [-t, --time] \e[33mMaximum number of seconds to poll for \e[92m(default: 60)\e[37m"
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echo -e " [-d, --delay] \e[33mDelay in seconds between requests \e[92m(default: 5)\e[37m"
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echo -e " [-c, --count] \e[33mHow many successes to receive before exiting \e[92m(default: 5)\e[37m"
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echo -e " [-s, --search] \e[33mOptional content check, grep for this string in HTTP body \e[92m(default: none)\e[37m"
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echo -e " [-h, --help] \e[33mShow this help text\e[37m"
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}
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OPTS=`getopt -o u:t:d:c:s:h --long url:,time:,delay:,count:,search:,help -n 'parse-options' -- "$@"`
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if [ $? != 0 ] ; then echo "Failed parsing options." >&2 ; usage; exit 1 ; fi
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eval set -- "$OPTS"
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while true; do
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case "$1" in
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-u | --url ) url="$2"; shift; shift;;
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-t | --time ) time="$2"; shift; shift;;
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-d | --delay ) delay="$2"; shift; shift;;
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-c | --count ) count="$2"; shift; shift;;
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-s | --search ) search="$2"; shift; shift;;
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-h | --help ) HELP=true; shift ;;
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-- ) shift; break ;;
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* ) break ;;
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esac
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done
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if [[ ${HELP} = true ]] || [ -z ${url} ]; then
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usage
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exit 0
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fi
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# Check for impossible parameter combination ie. too many checks and delays in given time limit
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if (( $delay * $count > $time)); then
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echo -e "\e[31m### Error! The time ($time) provided is too short given the delay ($delay) and count ($count)\e[0m"
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exit 1
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fi
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echo -e "\n\e[36m### Polling \e[33m$url\e[36m for ${time}s, to get $count OK results, with a ${delay}s delay\e[0m\n"
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# Generate tmp filename
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tmpfile=$(echo $url | md5sum)
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# Main loop
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while [ "$isUp" != "true" ]
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do
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# Break out of loop if max time has elapsed
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if (( $elapsed >= $time )); then break; fi
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timestamp=$(date "+%Y/%m/%d %H:%M:%S")
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# Main CURL test, output to file and return http_code
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urlstatus=$(curl -o "/tmp/$tmpfile" --silent --write-out '%{http_code}' "$url")
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if [ $urlstatus -eq 000 ]; then
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# Code 000 means DNS, network error or malformed URL
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msg="\e[95mSite not found or other error"
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else
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if (( $urlstatus >= 200 )) && (( $urlstatus < 300 )); then
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# Check returned content with grep if check specified
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if [ ! -z "$search" ]; then
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grep -q "$search" "/tmp/$tmpfile"
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# Only count as a success if string grep passed
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if (( $? == 0)); then
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((okCount=okCount + 1))
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msg="✅ \e[32m$urlstatus 🔍 Content check for '$search' passed"
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else
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msg="❌ \e[91m$urlstatus 🔍 Content check for '$search' failed"
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fi
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else
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# Good status code
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((okCount=okCount + 1))
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msg="✅ \e[32m$urlstatus "
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fi
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if (( $okCount >= $count )); then isUp="true"; fi
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else
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# Bad status code
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msg="❌ \e[91m$urlstatus "
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fi
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fi
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# Output message + timestamp then delay
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echo -e "### $timestamp: $msg\e[0m"
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sleep $delay
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((elapsed=elapsed + delay))
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done
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rm "/tmp/$tmpfile"
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# Final result check
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if [ "$isUp" == "true" ]; then
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echo -e "\n\e[32m### Result: $url is UP! 🤩\e[0m"
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exit 0
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else
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echo -e "\n\e[91m### Result: $url is DOWN! 😢\e[0m"
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exit 1
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fi

‎.github/workflows/cd-release-aks.yaml‎

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#
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# Deploy to Azure Kubernetes Service using Helm
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# Using Bicep for infrastructure as code
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#
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name: CD Release - AKS
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on:
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workflow_dispatch:
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inputs:
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IMAGE_TAG:
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description: "Image tag to be deployed"
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required: true
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default: "latest"
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# Note. Required secrets: CR_PAT & AZURE_CREDENTIALS
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env:
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IMAGE_REG: ghcr.io
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IMAGE_REPO: benc-uk/python-demoapp
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AKS_NAME: benc
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AKS_RES_GROUP: aks
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HELM_RELEASE: python
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HELM_NAMESPACE: demoapps
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INGRESS_DNS_HOST: python-demoapp.kube.benco.io
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jobs:
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#
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# Deploy to Kubernetes (AKS)
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#
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deploy-aks:
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name: Deploy to AKS with Helm
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runs-on: ubuntu-latest
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outputs:
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deployment_id: ${{ steps.deploy.outputs.deployment_id }}
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steps:
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- name: "Checkout"
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uses: actions/checkout@v1
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- name: "Start deployment"
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id: deploy
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uses: chrnorm/deployment-action@v1.2.0
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with:
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ref: ${{ github.event.ref }}
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token: ${{ github.token }}
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environment: AKS - ${{ env.HELM_RELEASE }}
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- name: "Login to Azure"
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uses: azure/login@v1
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with:
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creds: ${{ secrets.AZURE_CREDENTIALS }}
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- name: "Get AKS credentials"
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run: |
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az aks get-credentials -n $AKS_NAME -g $AKS_RES_GROUP
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- name: "Helm release"
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run: |
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helm upgrade ${{ env.HELM_RELEASE }} \
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https://code.benco.io/helm-charts/webapp-1.2.0.tgz \
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--install \
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--namespace ${{ env.HELM_NAMESPACE }} \
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--values ./kubernetes/app.yaml \
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--set image.tag=${{ github.event.inputs.IMAGE_TAG }},image.repository=${{ env.IMAGE_REG }}/${{ env.IMAGE_REPO }},env.AAD_REDIRECT_URL_BASE=https://${{ env.INGRESS_DNS_HOST }},ingress.host=${{ env.INGRESS_DNS_HOST }}
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- name: "End deployment - failure"
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if: ${{ failure() }}
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uses: chrnorm/deployment-status@v1.0.0
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with:
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token: ${{ github.token }}
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state: failure
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deployment_id: ${{ needs.deploy-bicep.outputs.deployment_id }}
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#
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# Post deployment testing stage
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#
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validate-deployment:
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name: "Run Deployment Tests"
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needs: deploy-aks
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runs-on: ubuntu-latest
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steps:
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- name: "Checkout"
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uses: actions/checkout@v2
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- name: "Validate site is running"
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run: .github/scripts/url-check.sh -u https://${{ env.INGRESS_DNS_HOST }} -s "Python Flask" -t 200
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- name: "Run API tests"
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run: |
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npm install newman --silent
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node_modules/newman/bin/newman.js run src/tests/postman_collection.json --global-var apphost=${{ env.INGRESS_DNS_HOST }}
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- name: "End deployment - success"
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if: ${{ success() }}
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uses: chrnorm/deployment-status@v1.0.0
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with:
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token: ${{ github.token }}
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state: success
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deployment_id: ${{ needs.deploy-aks.outputs.deployment_id }}
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environment_url: https://${{ env.INGRESS_DNS_HOST }}
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- name: "End deployment - failure"
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if: ${{ failure() }}
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uses: chrnorm/deployment-status@v1.0.0
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with:
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token: ${{ github.token }}
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state: failure
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deployment_id: ${{ needs.deploy-aks.outputs.deployment_id }}

‎.github/workflows/cd-release-webapp.yaml‎

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#
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# Deploy to Azure App Service as a containerized Web App
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# Using Bicep for infrastructure as code
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#
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name: CD Release - Webapp
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on:
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workflow_dispatch:
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inputs:
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IMAGE_TAG:
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description: "Image tag to be deployed"
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required: true
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default: "latest"
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# Note. Required secrets: CR_PAT & AZURE_CREDENTIALS
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env:
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IMAGE_REG: ghcr.io
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IMAGE_REPO: benc-uk/python-demoapp
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APP_NAME: python-demoapp
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ARM_SUB_ID: 52512f28-c6ed-403e-9569-82a9fb9fec91
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ARM_REGION: westeurope
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ARM_RES_GROUP: apps
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jobs:
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#
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# Deploy Azure infra (App Service) using Bicep
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#
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deploy-infra:
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name: "Deploy Infra"
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runs-on: ubuntu-latest
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outputs:
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deployment_id: ${{ steps.deploy.outputs.deployment_id }}
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steps:
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- name: "Checkout"
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uses: actions/checkout@v2
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- name: "Start deployment"
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id: deploy
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uses: chrnorm/deployment-action@v1.2.0
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with:
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ref: ${{ github.event.ref }}
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token: ${{ github.token }}
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environment: App Service - ${{ env.APP_NAME }}
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- name: "Run Bicep compiler"
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run: |
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wget https://github.com/Azure/bicep/releases/download/v0.1.37-alpha/bicep-linux-x64 -qO bicep
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chmod +x bicep
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./bicep build webapp.bicep
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working-directory: ./infra
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- name: "Login to Azure"
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uses: azure/login@v1
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with:
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creds: ${{ secrets.AZURE_CREDENTIALS }}
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- name: "Create resource group"
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run: az group create --name ${{ env.ARM_RES_GROUP }} --location ${{ env.ARM_REGION }}
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- name: "Deploy resources"
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uses: azure/arm-deploy@v1
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with:
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subscriptionId: ${{ env.ARM_SUB_ID }}
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resourceGroupName: ${{ env.ARM_RES_GROUP }}
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template: ./infra/webapp.json
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parameters: webappName=${{ env.APP_NAME }} webappImage=${{ env.IMAGE_REG }}/${{ env.IMAGE_REPO }}:${{ github.event.inputs.IMAGE_TAG }} weatherKey=${{ secrets.WEATHER_API_KEY }}
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deploymentName: webapp-deploy-${{ github.run_id }}
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- name: "End deployment - failure"
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if: ${{ failure() }}
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uses: chrnorm/deployment-status@v1.0.0
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with:
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token: ${{ github.token }}
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state: failure
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deployment_id: ${{ needs.deploy-bicep.outputs.deployment_id }}
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#
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# Post deployment testing stage
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#
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validate-deployment:
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name: "Run Deployment Tests"
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needs: deploy-infra
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runs-on: ubuntu-latest
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steps:
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- name: "Checkout"
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uses: actions/checkout@v2
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- name: "Validate site is running"
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run: .github/scripts/url-check.sh -u https://${{ env.APP_NAME }}.azurewebsites.net/ -s "Python Flask" -t 200
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- name: "Run API tests"
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run: |
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npm install newman --silent
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node_modules/newman/bin/newman.js run src/tests/postman_collection.json --global-var apphost=${{ env.APP_NAME }}.azurewebsites.net
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- name: "End deployment - success"
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if: ${{ success() }}
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uses: chrnorm/deployment-status@v1.0.0
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with:
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token: ${{ github.token }}
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state: success
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deployment_id: ${{ needs.deploy-infra.outputs.deployment_id }}
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environment_url: https://${{ env.APP_NAME }}.azurewebsites.net/
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- name: "End deployment - failure"
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if: ${{ failure() }}
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uses: chrnorm/deployment-status@v1.0.0
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with:
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token: ${{ github.token }}
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state: failure
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deployment_id: ${{ needs.deploy-infra.outputs.deployment_id }}

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