Docker Swarm does not have direct one-to-one equivalents for all Docker Compose commands. Below is a comparison of Docker Compose commands and their counterparts (or lack thereof) in Docker Swarm:
1. Commands with Direct Correspondents:
docker-compose up
Swarm Equivalent:docker stack deploy
Details:docker stack deploy -c docker-compose.yml <stack_name> deploys services defined in the Compose file to a Swarm cluster.
docker-compose down
Swarm Equivalent:docker stack rm
Details:docker stack rm <stack_name> removes the stack, including all services, networks, and volumes.
docker-compose ps
Swarm Equivalent:docker stack ps
Details:docker stack ps <stack_name> lists the tasks (containers) in the stack, similar to how docker-compose ps lists containers.
docker-compose logs
Swarm Equivalent:docker service logs
Details:docker service logs <service_name> fetches logs for a specific service. Unlike docker-compose logs, which can show logs for all services, in Swarm, you typically fetch logs service by service.
docker-compose scale
Swarm Equivalent:docker service scale
Details:docker service scale <service_name>=<replica_count> scales a specific service. In Swarm, scaling is done per service rather than in bulk.
Details: This isn't a direct equivalent but using --compose-file with docker stack deploy validates and deploys a Compose file in Swarm.
2. Commands without Direct Correspondents:
docker-compose exec
Swarm Equivalent: None
Details: Docker Swarm does not directly support running arbitrary commands inside containers of a running service. You'd need to use docker exec on individual containers.
docker-compose build
Swarm Equivalent: None (Partial)
Details: Docker Swarm does not build images; you should build them separately (e.g., using docker build) and push them to a registry. Then reference the built image in your Compose file.
docker-compose run
Swarm Equivalent: None
Details: Swarm doesn’t have a direct equivalent of docker-compose run for running one-off commands in containers. You would typically use docker run for this purpose.
docker-compose stop
Swarm Equivalent: None
Details: Docker Swarm manages service states automatically and does not have a direct stop equivalent for stopping services like docker-compose stop. You manage service availability by scaling down or removing the service.
docker-compose start
Swarm Equivalent: None
Details: Similar to stop, Docker Swarm doesn’t have a direct equivalent to start stopped services.
docker-compose restart
Swarm Equivalent: None
Details: Swarm does not have a single command to restart all services in a stack. You’d need to manually scale or redeploy services.
docker-compose pull
Swarm Equivalent: None
Details: Docker Swarm does not have a direct command for pulling images. The images are automatically pulled when the service is deployed or updated.
docker-compose up --no-start
Swarm Equivalent: None
Details: Swarm doesn’t have a feature equivalent to --no-start. Services are always started when they are deployed.
docker-compose kill
Swarm Equivalent: None
Details: There is no direct equivalent for forcefully stopping services like docker-compose kill. You'd manage services differently in Swarm.
Summary:
Direct Equivalents:up, down, ps, logs, scale, config
No Direct Equivalents:exec, build, run, stop, start, restart, pull, up --no-start, kill
Docker Swarm commands are more service-oriented and focus on managing services and stacks in a production-like environment. Docker Compose commands, on the other hand, are more suited for local development and testing scenarios where you have direct access and control over individual containers.
from chatgpt:
Docker Swarm does not have direct one-to-one equivalents for all Docker Compose commands. Below is a comparison of Docker Compose commands and their counterparts (or lack thereof) in Docker Swarm:
1. Commands with Direct Correspondents:
docker-compose updocker stack deploydocker stack deploy -c docker-compose.yml <stack_name>deploys services defined in the Compose file to a Swarm cluster.docker-compose downdocker stack rmdocker stack rm <stack_name>removes the stack, including all services, networks, and volumes.docker-compose psdocker stack psdocker stack ps <stack_name>lists the tasks (containers) in the stack, similar to howdocker-compose pslists containers.docker-compose logsdocker service logsdocker service logs <service_name>fetches logs for a specific service. Unlikedocker-compose logs, which can show logs for all services, in Swarm, you typically fetch logs service by service.docker-compose scaledocker service scaledocker service scale <service_name>=<replica_count>scales a specific service. In Swarm, scaling is done per service rather than in bulk.docker-compose configdocker stack deploy --compose-file--compose-filewithdocker stack deployvalidates and deploys a Compose file in Swarm.2. Commands without Direct Correspondents:
docker-compose execdocker execon individual containers.docker-compose builddocker build) and push them to a registry. Then reference the built image in your Compose file.docker-compose rundocker-compose runfor running one-off commands in containers. You would typically usedocker runfor this purpose.docker-compose stopstopequivalent for stopping services likedocker-compose stop. You manage service availability by scaling down or removing the service.docker-compose startstop, Docker Swarm doesn’t have a direct equivalent to start stopped services.docker-compose restartdocker-compose pulldocker-compose up --no-start--no-start. Services are always started when they are deployed.docker-compose killdocker-compose kill. You'd manage services differently in Swarm.Summary:
up,down,ps,logs,scale,configexec,build,run,stop,start,restart,pull,up --no-start,killDocker Swarm commands are more service-oriented and focus on managing services and stacks in a production-like environment. Docker Compose commands, on the other hand, are more suited for local development and testing scenarios where you have direct access and control over individual containers.