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docker entrypoint.8
docker-entrypoint - entry point for indimail docker/podman images
docker-entrypoint [ options ]
docker-entrypoint(8) is the entrypoint for indimail, indimail-mta runtime docker(1) / podman(1) images. It gets automatically invoked when you start a docker/podman image. Depending on the image (indimail-mta, indimail or indimail-web image with Roundcubemail), it is passed specific options on the command line. Normally, it is not meant to be executed by the user, but you can pass options and other arguments as part of the command argument to podman(1) / docker(1) command.
By default the entrypoint will execute svscan(8). You can bypass this behaviour by passing a program of your choice. This may be required if you want to do some maintenance modification of the image. Options passed to entrypoint are actually program/options to be executed in the container and is passed by the podman(1) or docker(1) command. Few program names passed have special meaning. If you want to execute a program with command line arguments, separate them with two hypens i.e. --.
The below command will run ls -l /tmp in the container and delete the container after execution.
podman run -ti --rm e716bf178990 -- ls -l /tmp
docker-entrypoint(8) uses the hostname to reconfigure qmail control files. This can be set by passing the -h argument to podman(1) / docker(1). The hostname set by podman(1) or docker(1) can be overriden by the -d argument. The command
svctool --default-domain=domain --config=recontrol
is used to reset control files for domain domain. The below command will run the container with domain as indimail.org.
podman run -d e716bf178990 -d indimail.org
The below will run an emergency shell
podman run -ti --rm e716bf178990 -r
indimail or indimail-mta or svscan
Start svscan(1) in /service directory and create a link /etc/mnttab to /proc/mounts.
webmail
Start svscan(1) in /service directory and create a link /etc/mnttab to
/proc/mounts. ALso starts the httpd and php-fpm service.
-r or --repair
Drop to shell prompt. This doesn't start svscan(1) command, allowing you
to execute maintenance, repairs without starting the
indimail/indimail-mta services.
-d domain or --domain domain
By default the hostname argument passed to podman or docker command is
used as the domain name. This option overrides that value.
-t timezone
Set timezone as the timezone for the container
docker(1) podman(1) svscan(8), svstat(8), svc(8), supervise(8), runpod(1)