How to extract the ENTRYPOINT and COMMAND of a Docker container image
You can use docker inspect like this to extract the ENTRYPOINT of a docker image.
docker inspect IMAGE --format='{{.Config.Entrypoint}}'
What’s often also useful is to print it in conjunction with the command:
docker inspect IMAGE --format='ENTRYPOINT: {{.Config.Entrypoint}} CMD: {{.Config.Cmd}}'
Example:
$ docker inspect nginxinc/nginx-s3-gateway:latest --format='{{.Config.Entrypoint}}'
[/docker-entrypoint.sh]
$ docker inspect nginxinc/nginx-s3-gateway:latest --format='ENTRYPOINT: {{.Config.Entrypoint}} CMD: {{.Config.Cmd}}'
ENTRYPOINT: [/docker-entrypoint.sh] CMD: [nginx -g daemon off;]
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