09.Docker Swarm

1. Docker Swarm

2. manages a cluster of Docker Engines (typically on different nodes) called a swarm. Here the overlap with Kubernetes begins.

https://dev.to/kittipat1413/docker-run-vs-cmd-vs-entrypoint-demystifying-the-differences-2a4p#:~:text=RUN%3A%20Executes%20commands%20in%20a,to%20run%20as%20an%20executable.

For docker node app with insect and debuuger? debugging --> https://github.com/BretFisher/node-docker-good-defaults docker node image with PM2 --> https://owlcation.com/stem/nodejs-pm2-docker https://tech.shaadi.com/2022/06/29/removing-pm2-from-nodejs-docker-container/

/etc/systemd/system/docker.service /usr/bin/dockerd /usr/lib/systemd/system/docker.service