How can I change node's startup command?

[ghost]

Hi, how is Tiddly Wiki started inside container? I'm trying to manually install TW5-Bob plugin, and it required to modify startup command:

cd TiddlyWiki5
node ./tiddlywiki.js Wikis/BobWiki  --wsserver

[m0wer]

First of all, sorry for the late reply. I didn't get any notifications since the repo is a fork and it was unwatched by default.

You can see the startup command (and modify it) in

tiddlywiki-docker/init-and-run-wiki

Line 24 in a378b10

exec /usr/bin/env node $NODEJS_V8_ARGS $tiddlywiki_script mywiki --listen host=0.0.0.0 port=8080 username="$USERNAME" password="${PASSWORD-wiki}" debug-level=${DEBUG_LEVEL-none};

.

A good solution would be to allow users to customize that command when running the Docker image, using the arguments from the docker run command in the init-and-run script (maybe with "$@" or something similar). PRs are welcome.

[cornernote]

I did it using docker compose like this:

Download the Dockerfile and init-and-run-wiki from the repo.

Edit the init-and-run-wiki to suit.

You may also need to chmod +x init-and-run-wiki, or change Dockerfile with this line:

ADD --chmod=755 init-and-run-wiki /usr/local/bin/init-and-run-wiki

Make a folder for the data with mkdir tiddlywiki.

Next create docker-compose.yml with the following:

version: '3'
services:
  tiddlywiki:
    build:
      dockerfile: Dockerfile
      context: .
    volumes:
      - ./tiddlywiki:/var/lib/tiddlywiki
    restart: unless-stopped
    ports:
      - 8080:8080

Then run docker compose up -d, and you have a server.

In addition, you can shell into the instance with docker compose exec tiddlywiki sh, then you can run tiddlywiki node commands, for example to export your wiki to a HTML file.

[cornernote]

Followup, I was able to get Bob working like this:

Dockerfile

FROM node:alpine

RUN npm install -g [email protected]

# Setup wiki volume
VOLUME /var/lib/tiddlywiki
WORKDIR /var/lib/tiddlywiki

# Add init-and-run script
ADD --chmod=755 init-and-run-wiki /usr/local/bin/init-and-run-wiki

# Meta
CMD ["/usr/local/bin/init-and-run-wiki"]

init-and-run-wiki

#!/bin/sh
set -e

tiddlywiki_script=$(readlink -f $(which tiddlywiki))

if [ -n "$NODE_MEM" ]; then
    # Based on rule of thumb from:
    # http://fiznool.com/blog/2016/10/01/running-a-node-dot-js-app-in-a-low-memory-environment/
    mem_node_old_space=$((($NODE_MEM*4)/5))
    NODEJS_V8_ARGS="--max_old_space_size=$mem_node_old_space $NODEJS_V8_ARGS"
fi

# Setup initial wiki
if [ ! -d /var/lib/tiddlywiki/mywiki ]; then
  /usr/bin/env node $NODEJS_V8_ARGS $tiddlywiki_script mywiki --init server

  mkdir /var/lib/tiddlywiki/mywiki/tiddlers
fi

# Define plugins
if [  -n "$PLUGINS" ]; then
  plugins_params="$PLUGINS"
fi

# Configure listen command, see https://tiddlywiki.com/static/ListenCommand.html
listen_params="host=0.0.0.0 port=8080"
listen_params="$listen_params debug-level=${DEBUG_LEVEL-none}"
if [ -n "$PATH_PREFIX" ]; then
  listen_params="$listen_params path-prefix=$PATH_PREFIX"
fi
if [ -n "$USERNAME" ]; then
  listen_params="$listen_params username=$USERNAME"
  listen_params="$listen_params password=${PASSWORD-wiki}"
fi

# Start the tiddlywiki server
exec /usr/bin/env node $NODEJS_V8_ARGS $tiddlywiki_script $plugins_params mywiki --listen $listen_params $OPTIONS

docker-compose.yml

version: '3'
services:
  tiddlywiki:
    build:
      dockerfile: Dockerfile
      context: .
    volumes:
      - ./tiddlywiki:/var/lib/tiddlywiki
    restart: unless-stopped
    ports:
      - 8080:8080
    environment:
      - PLUGINS=+plugins/tiddlywiki/markdown ++./plugins/OokTech/Bob
      - OPTIONS=--wsserver