Resolve "[New job] - cloudflare_pages"

# Changelog

All notable changes to this job will be documented in this file.

## [0.1.0] - 2022-09-13

* Initial version

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## Objective

Deploy your static website or frontend application really quick with [Cloudflare pages](https://pages.cloudflare.com/).

This job allows you to deploy 500 time per month your site for free. You can take a look at the [documentation](https://developers.cloudflare.com/pages/get-started/). 

## How to use it

1. Copy the job URL located in the `Install` part of the right panel and add it inside the `include` list of your `.gitlab-ci.yml` file (see the [quick setup](/use-the-hub/#quick-setup)). You can specify [a fixed version](#changelog) instead of `latest`.

1. Set credentials variables `CLOUDFLARE_API_TOKEN` and `CLOUDFLARE_ACCOUNT_ID` in

   the GitLab CI/CD variables section of your project. Follow the [documentation](https://developers.cloudflare.com/pages/how-to/use-direct-upload-with-continuous-integration/#generate-an-api-token) for retrieving them.

1. If you need to customize the job (stage, variables, ...) 👉 check the [jobs

   customization](/use-the-hub/#jobs-customization)

1. Well done, your job is ready to work ! 😀

## Variables

| Name | Description | Default |

| ---- | ----------- | ------- |

| `PAGES_BUILD_PATH` <img width=100/> | Path to folder which contains the static website files to publish <img width=175/>| `website_build` <img width=100/>|

| `PROJECT_NAME` | Project name of your deployment on Cloudflare | `$CI_PROJECT_PATH_SLUG` |

| `PRODUCTION_BRANCH` | The name of the production branch | `$CI_DEFAULT_BRANCH` |

| `DEPLOY_PRODUCTION` | Publish the website on production | `true` |

| `DOMAIN_NAME` | Set one custom domain name for your website. It must be registered on Cloudflare | ` ` |

| `CLOUDFLARE_API_TOKEN` | ⚠️ Mandatory variable : define your [API token](https://developers.cloudflare.com/pages/how-to/use-direct-upload-with-continuous-integration/#generate-an-api-token). This variable should be specified in `GitLab > CI/CD Settings`.  | ` ` |

| `CLOUDFLARE_ACCOUNT_ID` | ⚠️ Mandatory variable : define your [Account ID](https://developers.cloudflare.com/pages/how-to/use-direct-upload-with-continuous-integration/#get-project-account-id). This variable should be specified in `GitLab > CI/CD Settings`.  | ` ` |

| `CLOUDFLARE_ZONE_ID` | ⚠️ Mandatory variable : define your [Zone ID](https://developers.cloudflare.com/fundamentals/get-started/basic-tasks/find-account-and-zone-ids/), related to the `DOMAIN_NAME`. This variable should be specified in `GitLab > CI/CD Settings`.  | ` ` |

| `CLOUDFLARE_API` | The URL of the Cloudflare API. | `https://api.cloudflare.com/client/v4` |

| `WRANGLER_VERSION` | Version of the npm package [wrangler](https://npmjs.com/package/wrangler) used to publish the website | `2.1.1` |

| `IMAGE_TAG` | The default tag for the docker image | `18-alpine` |

   !!! info "Set up a custom domain name 🛣"

   If you want one custom domain, registered on Cloudflare, you must set the two variable :  

      - `DOMAIN_NAME` : the domain name you want to use  

      - `CLOUDFLARE_ZONE_ID` : the Zone ID of your domain name, you can find it in the [Cloudflare dashboard](https://developers.cloudflare.com/fundamentals/get-started/basic-tasks/find-account-and-zone-ids/).

## Author

This resource is an **[official job](https://docs.r2devops.io/faq-labels/)** added in [**R2Devops repository**](https://gitlab.com/r2devops/hub) by [@GridexX](https://gitlab.com/GridexX)

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# Job from R2Devops hub --> r2devops.io

stages:

  - deploy

cloudflare_pages:

  image: 

    name: node:$IMAGE_TAG

  stage: deploy

  variables:

    PAGES_BUILD_PATH: "build"

    PROJECT_NAME: "$CI_PROJECT_PATH_SLUG" 

    PRODUCTION_BRANCH: $CI_DEFAULT_BRANCH

    DEPLOY_PRODUCTION: "true"

    DOMAIN_NAME: ""

    CLOUDFLARE_API_TOKEN: ""

    CLOUDFLARE_ACCOUNT_ID: ""

    CLOUDFLARE_ZONE_ID: ""

    CLOUDFLARE_API: "https://api.cloudflare.com/client/v4"

    WRANGLER_VERSION: "2.1.1"

    IMAGE_TAG: "18-alpine"

  script:

    - |

      apk add --no-cache -q curl jq gettext

      npm i -g wrangler@$WRANGLER_VERSION 

    # Create the pages project 

    - "PAGES_DOMAINS=$(curl -sX GET \"${CLOUDFLARE_API}/accounts/${CLOUDFLARE_ACCOUNT_ID}/pages/projects/${PROJECT_NAME}/domains\" -H 'Content-Type: application/json' -H \"Authorization: Bearer $CLOUDFLARE_API_TOKEN\")"

    - |

      ERROR=$(echo $PAGES_DOMAINS | jq '.errors[0]')

      if [ "$ERROR" != "null" ]; then

        ERROR_PAGES_DOMAIN=true

        #Handle Authentication error 

        if [ $(echo $ERROR | jq '.code') -eq 10000 ]; then

          ERROR_MESSAGE=$(echo $ERROR | jq '.message')

          echo -e "\e[31mError with Cloudflare API ${ERROR_MESSAGE}\e[0m"

          exit 1

        fi

        #Handle project not found error and create one

        if [ $(echo $ERROR | jq '.code') -eq 8000007 ]; then

          wrangler pages project create ${PROJECT_NAME} --production-branch="main"

        fi

      fi

    # Function for printing custom state

    - |

      function print_domain_state() {

        DOMAIN_NAME=$1

        DOMAIN_STATUS=$2

        echo -e "\e[33m🔄 Domain name '\e[1m${DOMAIN_NAME}\e[0m\e[33m' is '\e[1m${DOMAIN_STATUS}\e[0m\e[33m', please wait for the validation\e[0m"

        echo -e "   When activated, your site will be available from : \e[1mhttps://${DOMAIN_NAME}\e[0m"

      }

    # Link all domains to the project

    - |

      SUBDOMAIN=$(curl -sX GET "${CLOUDFLARE_API}/accounts/${CLOUDFLARE_ACCOUNT_ID}/pages/projects/${PROJECT_NAME}" -H 'Content-Type: application/json' -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN")

      export SUBDOMAIN=$(echo $SUBDOMAIN | jq '.result.subdomain' | tr -d '"')

      if [ ! -z "${DOMAIN_NAME}" ]; then

        if [ -z "${CLOUDFLARE_ZONE_ID}" ]; then

          echo -e \"\e[31m'CLOUDFLARE_ZONE_ID' is not set and is needed to add a custom domain name\e[0m\"

          exit 1

        fi

        if [ $ERROR_PAGES_DOMAIN = true ]; then

          DOMAIN_NAME_STATUS="inactive"

        else

          DOMAIN_NAME_STATUS=$(echo $PAGES_DOMAINS | jq '.result[] | select(.name == "'${DOMAIN_NAME}'") | .status' | tr -d '"')

        fi

        if [ "${DOMAIN_NAME_STATUS}" == "active" ]; then

          echo -e "\e[32m✅ Domain name '\e[1m${DOMAIN_NAME}\e[0m\e[32m' is \e[1mactive\e[0m\e[32m! Check out \e[1mhttps://${DOMAIN_NAME}\e[0m"

        fi

        if [ "${DOMAIN_NAME_STATUS}" != "active" ] && [ ! -z ${DOMAIN_NAME_STATUS} ] && [ $ERROR_PAGES_DOMAIN != true ]; then

        # Domain name is pending or other but defined in the project

          print_domain_state $DOMAIN_NAME $DOMAIN_NAME_STATUS

        fi

        if [ "${DOMAIN_NAME_STATUS}" != "active" ] && [ "${DOMAIN_NAME_STATUS}" != "pending" ]; then # activate the domain name

        # Add a new DNS entry

          echo '{"type":"CNAME","name":"${DOMAIN_NAME}","content":"${SUBDOMAIN}","ttl":1,"priority":10,"proxied":true}' > data_incomplete.json

          envsubst < data_incomplete.json > data.json

          DATA=$(cat data.json)

          POST_DOMAIN_RESPONSE=$(curl -sX POST "${CLOUDFLARE_API}/zones/${CLOUDFLARE_ZONE_ID}/dns_records" -H 'Content-Type: application/json' -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN" --data $DATA  )

          ERROR=$(echo $POST_DOMAIN_RESPONSE | jq '.errors[0]')

          if [ "$ERROR" != "null" ]; then

            ERROR_MESSAGE=$(echo $ERROR | jq '.message')

            ERROR_CODE=$(echo $ERROR | jq '.code')

            echo -e "\e[31mError while adding the record for the domain name ${DOMAIN_NAME} : ${ERROR_MESSAGE} code(${ERROR_CODE})\e[0m"

          # Handle authentication error

            if [ $ERROR_CODE -eq 10000 ]; then

              echo -e "\e[31mThe provided token hasn't the right to edit the DNS Zone.\e[0m\nPlease check the documentation(https://r2devops.io/_/r2devops-bot/cloudflare_pages) and update it in the \e[1mCLOUDFLARE_API_TOKEN\e[0m variable"

            fi

          # Handle incorrect zone id

            if [ $ERROR_CODE -eq 7003 ]; then

            echo -e "\e[31mThe provided zone id, doesn't correspond to domain name  \e[1m${DOMAIN_NAME}\e[0m\nPlease check the documentation(https://developers.cloudflare.com/fundamentals/get-started/basic-tasks/find-account-and-zone-ids/) and update it in the \e[1mCLOUDFLARE_ZONE_IDS\e[0m variable"

            fi

            exit 1

          fi

          # Add the domain name in pages

          echo '{"name":"${DOMAIN_NAME}"}' > data_incomplete.json

          envsubst < data_incomplete.json > data.json

          DATA=$(cat data.json)

          POST_DOMAIN_PAGES_RESPONSE=$(curl -sX POST "${CLOUDFLARE_API}/accounts/${CLOUDFLARE_ACCOUNT_ID}/pages/projects/${PROJECT_NAME}/domains" -H 'Content-Type: application/json' -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN" --data $DATA )

          echo -e "Adding domain \e[1m${DOMAIN_NAME}\e[0m for the project \e[1m${PROJECT_NAME}\e[0m"

          ERROR=$(echo $POST_DOMAIN_PAGES_RESPONSE | jq '.errors[0]')

          if [ "$ERROR" != "null" ]; then

            ERROR_MESSAGE=$(echo $ERROR | jq '.message')

            ERROR_CODE=$(echo $ERROR | jq '.code')

            echo -e "\e[31mError while adding the domain ${DOMAIN_NAME} in the project ${PROJECT_NAME} : ${ERROR_MESSAGE} code(${ERROR_CODE})\e[0m"

          # Checking for domain status and inform the user

          else

            DOMAIN_NAME_STATUS=$(echo $POST_DOMAIN_PAGES_RESPONSE | jq '.result.validation_data.status' | tr -d '"')

            if [ "${DOMAIN_STATUS}" != "active" ]; then

              print_domain_state $DOMAIN_NAME $DOMAIN_NAME_STATUS

            fi

          fi

        fi

      fi

    # Deploy the directory to Pages

    - |

      OPTION=""

      if [ ${DEPLOY_PRODUCTION} == "true" ]; then

        OPTION="--branch=${PRODUCTION_BRANCH}"

      fi

      wrangler pages publish "${PAGES_BUILD_PATH}" --project-name="${PROJECT_NAME}" ${OPTION}

      if [ ${DEPLOY_PRODUCTION} == "true" ]; then

        echo -e "\e[32m✅ Website successfully deployed on \e[1mhttps://${SUBDOMAIN}\e[0m"

      fi

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