Removed volta requirement, leave pnpm only

Dockerfile

@@ -0,0 +1,2 @@
+FROM node:18.19.0-alpine3.18 AS base
+RUN wget -qO- https://get.pnpm.io/install.sh | ENV="$HOME/.shrc" SHELL="$(which sh)" sh -

docker-compose.yml

@@ -1,11 +1,14 @@
 version: '3.9'
 services:
   mermaid:
-    image: node:18.19.0-alpine3.18
+    build:
+      context: .
+      dockerfile: Dockerfile
     stdin_open: true
     tty: true
     working_dir: /mermaid
     mem_limit: '8G'
+    entrypoint: "/mermaid/docker-entrypoint.sh"
     environment:
       - NODE_OPTIONS=--max_old_space_size=8192
     volumes:

docker-entrypoint.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+source /root/.shrc
+exec "$@"

packages/mermaid/src/docs/community/contributing.md

@@ -45,17 +45,18 @@ We support **development within Docker** environment along with **host setup**.
 
 These are the tools we use for working with the code and documentation:
 
-- [volta](https://volta.sh/) to manage node versions.
-- [Node.js](https://nodejs.org/en/). `volta install node`
-- [pnpm](https://pnpm.io/) package manager. `volta install pnpm`
+- [Node.js](https://nodejs.org/en/).
+- [pnpm](https://pnpm.io/) package manager.
 
-In case you do not use `volta` the following commands must be sufficient enough to start with:
+The following commands must be sufficient enough to start with:
 
 ```bash
 curl -fsSL https://get.pnpm.io/install.sh | sh -
 pnpm env use --global 18
 ```
 
+You may also need to reload `.shrc` or `.bashrc` afterwards.
+
 **Docker**
 
 [Install Docker](https://docs.docker.com/engine/install/). And that is pretty much all you need.

run

@@ -1,5 +1,5 @@
 #!/bin/bash
-RUN="docker-compose run --rm"
+RUN="docker compose run --rm"
 
 ansi()          { echo -e "\e[${1}m${*:2}\e[0m"; }
 bold()          { ansi 1 "$@"; }
@@ -14,16 +14,20 @@ args=${@:2}
 
 case $command in
 
+build)
+docker compose build $args
+;;
+
 sh)
-$RUN mermaid sh -c "npx $args" 
+$RUN mermaid sh # -c "npx $args" 
 ;;
 
 pnpm)
-$RUN mermaid sh -c "npx pnpm $args"
+$RUN mermaid sh -c "pnpm $args"
 ;;
 
 dev)
-$RUN --service-ports mermaid sh -c "npx pnpm run dev"
+$RUN --service-ports mermaid sh -c "pnpm run dev"
 ;;
 
 docs:dev)
@@ -46,24 +50,26 @@ Welcome! Thank you for joining the development.
 This is a script for running commands within docker containers at ease.
 __________________________________________________________________________________________
 
-Development quick start guide:
+Development Quick Start Guide:
 
-$(bold ./$name pnpm install)                 # Install packages
-$(bold ./$name dev)                          # Run dev server with examples, open http://localhost:9000
-$(bold ./$name pnpm vitest)                  # Run watcher for unit tests
-$(bold ./$name cypress)                      # Run integration tests (after starting dev server)
-$(bold ./$name pnpm build)                   # Prepare it for production
-$(bold ./$name docs:dev)                     # Then add documentation, open http://localhost:3333
+$(bold ./$name pnpm install)           # Install packages
+$(bold ./$name dev)                    # Launch dev server with examples, open http://localhost:9000
+$(bold ./$name docs:dev)               # Launch official website, open http://localhost:3333
+
+$(bold ./$name pnpm vitest)            # Run watcher for unit tests
+$(bold ./$name cypress)                # Run integration tests (after starting dev server)
+$(bold ./$name pnpm build)             # Prepare it for production
 __________________________________________________________________________________________
 
 Commands:
 
-$(bold ./$name pnpm)                         # Run any 'pnpm' command
-$(bold ./$name dev)                          # Run dev server with examples, open http://localhost:9000
-$(bold ./$name docs:dev)                     # For docs contributions, open http://localhost:3333
-$(bold ./$name cypress)                      # Run integration tests
-$(bold ./$name sh)                           # Open 'sh' inside docker container for development
-$(bold ./$name help)                         # Show this help
+$(bold ./$name build)                  # Build image
+$(bold ./$name cypress)                # Run integration tests
+$(bold ./$name dev)                    # Run dev server with examples, open http://localhost:9000
+$(bold ./$name docs:dev)               # For docs contributions, open http://localhost:3333
+$(bold ./$name help)                   # Show this help
+$(bold ./$name pnpm)                   # Run any 'pnpm' command
+$(bold ./$name sh)                     # Open 'sh' inside docker container for development
 __________________________________________________________________________________________
 
 Examples of frequiently used commands:
@@ -81,7 +87,7 @@ $(bold ./$name cypress open --project .)
         Open cypress interactive GUI
 
 $(bold ./$name cypress run --spec cypress/integration/rendering/)$(underline test.spec.ts)
-        Run specific test in cypress\n
+        Run specific test in cypress
 
 $(bold xhost +local:)
         Allow local connections for x11 server