st2chatops Rocket.Chat hubot will not start

SUMMARY

This is actual a cross-post for a st2chatops issue https://github.com/StackStorm/st2chatops/issues/167

st2chatops will not start using the Rocket.Chat adapter in a VM and configured in Docker.

STACKSTORM VERSION

st2 --version: st2 3.5.0, on Python 3.8.10
and the stackstorm/st2chatops:3.5 docker container

OS, environment, install method

OS: 20.04.2 LTS (Focal Fossa), clean installation
ST2 installation using the Quick install script

Docker version: Docker version 20.10.7, build f0df350

Steps to reproduce the problem

1. Install ST2 using the quick install option from https://docs.stackstorm.com/install/index.html.
2. Edit /opt/stackstorm/chatops/st2chatops.env with the correct information;

HUBOT_ADAPTER=rocketchat
ROCKETCHAT_URL=<rocketchat url>
ROCKETCHAT_USER=<bot name>
ROCKETCHAT_PASSWORD=<bot password>
ROCKETCHAT_ROOM=<default room>

3. systemctl restart st2chatops
4. tail -f /var/log/syslog

Expected Results

I expect that chatops just starts and works.

Actual Results

chatops keeps restarting giving the following error:

Jul 22 09:07:28 stackstorm systemd[1]: Started StackStorm service st2chatops.
Jul 22 09:07:28 stackstorm hubot[44063]: Thu, 22 Jul 2021 09:07:28 GMT body-parser deprecated undefined extended: provide extended option at node_modules/hubot/src/robot.js:445:21
Jul 22 09:07:28 stackstorm hubot[44063]: [Thu Jul 22 2021 09:07:28 GMT+0000 (Coordinated Universal Time)] DEBUG Loading adapter rocketchat
Jul 22 09:07:28 stackstorm hubot[44063]: [Thu Jul 22 2021 09:07:28 GMT+0000 (Coordinated Universal Time)] ERROR Cannot load adapter rocketchat - Error: Cannot find module 'ddp.js'
Jul 22 09:07:28 stackstorm hubot[44063]: Require stack:
Jul 22 09:07:28 stackstorm hubot[44063]: - /opt/stackstorm/chatops/node_modules/@rocket.chat/sdk/node_modules/asteroid/dist/asteroid.node.js
Jul 22 09:07:28 stackstorm hubot[44063]: - /opt/stackstorm/chatops/node_modules/@rocket.chat/sdk/dist/lib/driver.js
Jul 22 09:07:28 stackstorm hubot[44063]: - /opt/stackstorm/chatops/node_modules/@rocket.chat/sdk/dist/index.js
Jul 22 09:07:28 stackstorm hubot[44063]: - /opt/stackstorm/chatops/node_modules/hubot-rocketchat/index.js
Jul 22 09:07:28 stackstorm hubot[44063]: - /opt/stackstorm/chatops/node_modules/hubot/src/robot.js
Jul 22 09:07:28 stackstorm hubot[44063]: - /opt/stackstorm/chatops/node_modules/hubot/es2015.js
Jul 22 09:07:28 stackstorm hubot[44063]: - /opt/stackstorm/chatops/node_modules/hubot/index.js
Jul 22 09:07:28 stackstorm hubot[44063]: - /opt/stackstorm/chatops/node_modules/hubot/bin/hubot.js
Jul 22 09:07:28 stackstorm hubot[44063]: - /opt/stackstorm/chatops/node_modules/hubot/bin/hubot
Jul 22 09:07:28 stackstorm systemd[1]: st2chatops.service: Main process exited, code=exited, status=1/FAILURE
Jul 22 09:07:28 stackstorm systemd[1]: st2chatops.service: Failed with result 'exit-code'.
Jul 22 09:07:33 stackstorm systemd[1]: st2chatops.service: Scheduled restart job, restart counter is at 1037.
Jul 22 09:07:33 stackstorm systemd[1]: Stopped StackStorm service st2chatops.

Start with the /opt/stackstorm/chatops/st2chatops.env configuration and the dependency paths shown in the error under /opt/stackstorm/chatops/node_modules/. Check how the Rocket.Chat adapter and its ddp.js dependency are installed in the stackstorm/st2chatops:3.5 container. Done means st2chatops starts with HUBOT_ADAPTER=rocketchat without the missing-module error.