chore: remove Gitpod support

Gitpod free tier has been discontinued. Removed all Gitpod-related
configuration and documentation in favor of GitHub Codespaces.

Changes:
- Removed .gitpod.yml and .gitpod/Dockerfile
- Removed dockerfiles/gitpodURL.sh script
- Removed updatecli/updatecli.d/gitpod.yaml configuration
- Removed GITPOD_WORKSPACE_URL environment variables from docker-compose files
- Updated README.md to remove Gitpod setup instructions
- Updated documentation to focus on local development

Author: gounthar

.gitpod.yml

@@ -2,16 +2,6 @@
 
 This repository includes the files necessary for transitioning from `docker` to `docker compose` in our Jenkins tutorials and installation guides.
 
-### How to Set Up the Repository in Gitpod?
-
-- To initialize your Gitpod workspace, prepend `gitpod.io/#` to any GitHub, GitLab, or Bitbucket repository URL.
-- Access our Gitpod workspace [here](https://gitpod.io/#https://github.com/jenkins-docs/quickstart-tutorials).
-- If you plan to use Gitpod regularly, we recommend installing the Gitpod extension. This extension adds a Gitpod button to every GitHub repository you visit, making it easy to launch a workspace. You can find the extension [here](https://chrome.google.com/webstore/detail/gitpod-online-ide/dodmmooeoklaejobgleioelladacbeki) for Chromium and [here](https://addons.mozilla.org/firefox/addon/gitpod/) for Firefox.
-
-## Gitpod
-
-Gitpod is a cloud-based development environment designed for teams. It supports various IDEs, including VScode, IntelliJ, and many more, enabling efficient and secure software development.
-
 ### Steps to Run Examples from the Repository
 
 - Use `docker compose up` to run examples from this project. Currently, we have four working examples:
@@ -35,26 +25,13 @@ Gitpod is a cloud-based development environment designed for teams. It supports
 
 - Check the status of the container with the `docker ps` or `docker compose ps` commands.
 - Access your running Jenkins instance at [http://127.0.0.1:8080](http://127.0.0.1:8080).
-- On Gitpod, if containers are running successfully after entering `docker compose --profile <tutorial-name> up`, a pop-up titled `A service is available on port 8080` should appear. If it doesn't, you can view the running service in the `PORTS` section on the right side of the terminal.
 
 ### Clean Up Instructions
 
 - To stop and remove running containers, use `docker compose --profile <tutorial-name> down`.
 - If you encounter a `Resource is still in use` warning, use the `--remove-orphans` option which would give `docker compose --profile <tutorial-name> down --remove-orphans`.
 - To remove the created volumes (should you need to restart from scratch), add the `-v` option which would give `docker compose --profile <tutorial-name> down -v`.
 
-### Suppressing Jenkins Warning using JCASC
-
-To improve the Gitpod experience with Jenkins, we've suppressed a reverse proxy setup warning in Jenkins that was causing issues in the Gitpod environment. We achieved this using Jenkins Configuration as Code ([JCASC](https://www.jenkins.io/projects/jcasc/)) and added the following property to the JCASC YAML file:
-
-```yaml
-jenkins:
-  disabledAdministrativeMonitors:
-    - "hudson.diagnosis.ReverseProxySetupMonitor"
-```
-
-For more detailed information about this configuration and the context behind it, please refer to the [corresponding issue](https://github.com/ash-sxn/GSoC-2023-docker-based-quickstart/issues/61).
-
 ### Encountering Issues?
 
 If you encounter any issues while running the examples, please open an issue [in this repository](https://github.com/jenkins-docs/quickstart-tutorials/issues/new/choose).

.gitpod/Dockerfile

@@ -117,8 +117,6 @@ services:
       - agent-ssh-dir:/home/jenkins/.ssh:ro # Mounts the agent-ssh-dir volume to the /home/jenkins/.ssh path inside the container as read-only
   node:
     build: dockerfiles/node/.
-    environment:
-      - GITPOD_WORKSPACE_URL=${GITPOD_WORKSPACE_URL}
     container_name: desktop-jenkins_agent-1-node
     profiles:
       - node
@@ -139,8 +137,6 @@ services:
       - agent-ssh-dir:/home/jenkins/.ssh:ro # Mounts the agent-ssh-dir volume to the /home/jenkins/.ssh path inside the container as read-only
   multi:
     build: dockerfiles/multi/.
-    environment:
-      - GITPOD_WORKSPACE_URL=${GITPOD_WORKSPACE_URL}
     container_name: desktop-jenkins_agent-1-multi
     profiles:
       - multi
@@ -162,8 +158,6 @@ services:
       - agent-ssh-dir:/home/jenkins/.ssh:ro # Mounts the agent-ssh-dir volume to the /home/jenkins/.ssh path inside the container as read-only
   android:
     build: dockerfiles/android/.
-    environment:
-      - GITPOD_WORKSPACE_URL=${GITPOD_WORKSPACE_URL}
     container_name: desktop-jenkins_agent-1-android
     profiles:
       - android
@@ -185,8 +179,6 @@ services:
       - agent-ssh-dir:/home/jenkins/.ssh:ro # Mounts the agent-ssh-dir volume to the /home/jenkins/.ssh path inside the container as read-only
   golang:
     build: dockerfiles/golang/.
-    environment:
-      - GITPOD_WORKSPACE_URL=${GITPOD_WORKSPACE_URL}
     container_name: desktop-jenkins_agent-1-golang
     profiles:
       - golang

README.md

@@ -176,8 +176,6 @@ services:
       - agent-ssh-dir:/home/jenkins/.ssh:ro # Mounts the agent-ssh-dir volume to the /home/jenkins/.ssh path inside the container as read-only
   node:
     image: ${IMAGE_PREFIX}/${GHCR_USERNAME}/quickstart-tutorials/jenkinsci-tutorials:node_agent_${BRANCH_SUFFIX}
-    environment:
-      - GITPOD_WORKSPACE_URL=${GITPOD_WORKSPACE_URL}
     container_name: desktop-jenkins_agent-1-node
     profiles:
       - node
@@ -198,8 +196,6 @@ services:
       - agent-ssh-dir:/home/jenkins/.ssh:ro # Mounts the agent-ssh-dir volume to the /home/jenkins/.ssh path inside the container as read-only
   android:
     image: ${IMAGE_PREFIX}/${GHCR_USERNAME}/quickstart-tutorials/jenkinsci-tutorials:android_agent_${BRANCH_SUFFIX}
-    environment:
-      - GITPOD_WORKSPACE_URL=${GITPOD_WORKSPACE_URL}
     container_name: desktop-jenkins_agent-1-android
     profiles:
       - android
@@ -239,8 +235,6 @@ services:
       retries: 5
   multi:
     image: ${IMAGE_PREFIX}/${GHCR_USERNAME}/quickstart-tutorials/jenkinsci-tutorials:node_agent_${BRANCH_SUFFIX}
-    environment:
-      - GITPOD_WORKSPACE_URL=${GITPOD_WORKSPACE_URL}
     container_name: desktop-jenkins_agent-1-multi
     profiles:
       - multi
@@ -262,8 +256,6 @@ services:
       - agent-ssh-dir:/home/jenkins/.ssh:ro # Mounts the agent-ssh-dir volume to the /home/jenkins/.ssh path inside the container as read-only
   golang:
     image: ${IMAGE_PREFIX}/${GHCR_USERNAME}/quickstart-tutorials/jenkinsci-tutorials:golang_${BRANCH_SUFFIX}
-    environment:
-      - GITPOD_WORKSPACE_URL=${GITPOD_WORKSPACE_URL}
     container_name: desktop-jenkins_agent-1-golang
     profiles:
       - golang